GRB 200613A
GCN Circular 29320
Subject
GRB 200613A: Host galaxy redshift from OSIRIS/GTC
Date
2021-01-18T17:29:38Z (5 years ago)
From
Antonio de Ugarte Postigo at IAA-CSIC <deugarte@iaa.es>
A. de Ugarte Postigo (HETH/IAA-CSIC, DARK/NBI), D.A. Kann (HETH/IAA-CSIC),
C.C. Thoene (HETH), M. Blazek, and J. F. Agui Fernandez (both HETH/IAA-CSIC)
report:
We obtained spectroscopy of the host galaxy of GRB 200613A (Fermi-LAT
detection: Ohno et al. GCN #27931; Fermi GBM detection: Bissaldi & Lesage,
GCN #27930; optical counterpart discovery: Kann et al. GCN #27935) with OSIRIS,
mounted on the 10.4m GTC telescope (Roque de los Muchachos Observatory,
La Palma, Spain). The observation was performed on the 18 January 2021 with
mean epoch at 00:02 UT (218.75 days after the burst) and consisted of 3x1200s
exposures with grism R1000R, covering the range between 5100 and 10100 ��.
The spectrum is characterised by a continuum that is detected over the complete
spectral range, with better SNR in the blue part of the spectrum, and has a strong
emission feature that we identify as the [OII] 3727/3729 doublet, at a redshift of
1.2280. At a similar redshift of 1.2255 we also identify absorptions due to FeII and
MgII, that allow us to confirm the redshift, which we identify as that of GRB 200613A.
GCN Circular 28003
Subject
GRB 200613A: Continued CrAO optical observations
Date
2020-06-21T10:36:37Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI),�� V. Rumyantsev (CrAO),�� A. Volnova
(IKI), E. Mazaeva (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the�� GRB 200613A (Fermi GBM team, GCN 27926; Bissaldi et
al., GCN 27930; Ohno et al., GCN 27931; Yamaoka Ohno et al., GCN 27964)��
with ZTSH 2.6m telescope of CrAO observatory starting on 2020-06-20 (UT)
19:19:12.�� The optical afterglow (e.g., Kann et al., GCN 27935;
Pozanenko et al., GCN 27937; Izzo et al., GCN 27939; Zhu et al., GCN
27943; Marshall, GCN 27944; Liu et al., GCN 27949; Belkin et al., GCN
27958) is detected in a stacked image. Preliminary photometry of the
afterglow is following
Date������������ UT start�� t-T0������ Filter Exp.���� OT������ Err. UL
�������������������������������������� (mid, days)�������� (s)
2020-06-20 19:19:12�� 6.58142 R���������� 6*120 21.13 0.10 22.7
The photometry is based on nearby SDSS star
SDSS-DR12_id���������� R(Lupton)
J101207.75+454443.4 17.877
A light curve of the afterglow of�� GRB 200613A can be found in
http://grb.rssi.ru/GRB200613A/GRB200613A_lc_v2.png
GCN Circular 28000
Subject
GRB 200613A: CrAO optical observations
Date
2020-06-20T11:51:17Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI),�� V. Rumyantsev (CrAO),�� A. Volnova
(IKI), E. Mazaeva (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the�� GRB 200613A (Fermi GBM team, GCN 27926; Bissaldi et
al., GCN 27930; Ohno et al., GCN 27931; Yamaoka Ohno et al., GCN 27964)��
with ZTSH 2.6m telescope of CrAO observatory starting on 2020-06-19 (UT)
18:58:23.�� The optical afterglow (e.g., Kann et al., GCN 27935;
Pozanenko et al., GCN 27937; Izzo et al., GCN 27939; Zhu et al., GCN
27943; Marshall, GCN 27944; Liu et al., GCN 27949; Belkin et al., GCN
27958) is detected in a stacked image. Preliminary photometry of the
afterglow is following
Date������������ UT start�� t-T0������ Filter Exp.���� OT������ Err. UL
�������������������������������������� (mid, days)�������� (s)
2020-06-19 18:58:23�� 6.58142 R���������� 29*120 21.06 0.09 23.6
The photometry is based on nearby SDSS star
SDSS-DR12_id���������� R(Lupton)
J101207.75+454443.4 17.877
A light curve of the afterglow of�� GRB 200613A can be found in
http://grb.rssi.ru/GRB200613A/GRB200613A_lc_v2.png
GCN Circular 27999
Subject
GRB 200613A: R-band observations from HCT
Date
2020-06-20T11:29:46Z (5 years ago)
From
Brajesh Kumar at Indian Inst. of Astrophysics <brajesh.kumar@iiap.res.in>
Anirban Dutta, Brajesh Kumar, Avinash Singh, G. C. Anupama, D. K. Sahu
and B. S. Kiran (IIA, Bengaluru)
We observed the field of GRB 200613A (Fermi GBM team, GCN #27926;
Bissaldi et al., GCN #27930; Ohno et al., GCN #27931; Evans, GCN #27932)
with the Himalayan Faint Object Spectrograph and Camera (HFOSC) mounted
on the 2-m Himalayan Chandra Telescope located at IAO, Hanle, India.
Observations started on 2020-06-19 at 15:20:43 UT and we obtained 3
frames, each of 300 sec in the Bessell R-band filter under moderate sky
conditions.
The afterglow (Kann et al., GCN #27935; Pozanenko et al., GCN #27937;
Zhu et al., GCN #27943; Marshall, GCN #27944; Liu et al., GCN #27949;
Belkin et al., GCN #27958; GCN #27978; GCN #27983; Fu et al., GCN
#27971; Moskvitin et al., GCN #27982; Izzo, GCN #27998) is clearly
visible in the stacked image. We measure a preliminary magnitude of R =
20.59 +/- 0.26 mag calibrated against the USNO-A2.0 catalogue stars. The
host contamination has not been removed in the analysis.
We thank the observing staff at IAO and CREST for helping with the
observations.
GCN Circular 27998
Subject
GRB 200613A: Further Liverpool Telescope observations
Date
2020-06-20T07:19:20Z (5 years ago)
From
Luca Izzo at DARK/NBI <luca.izzo@gmail.com>
L. Izzo (DARK/NBI) reports:
We observed the field of GRB 200613A (Bissaldi and Lesage, GCN #27930; Ohno et al., GCN #27931) with the IO:O camera mounted on the 2-m Liverpool Telescope located in La Palma, Spain. Observations started on June 19th at 22:00:00 UT (6.687 days after the GRB trigger) and we obtained a series of 10x60s images in the r filter.
The afterglow (Kann et al., GCN #27935; Pozanenko et al., GCN #27937; Izzo et al., GCN #27939; Zhu et al., GCN #27943; Marshall, GCN #27944; Liu et al., GCN #27949; Belkin et al., GCN #27958; Fu et al., GCN #27971; Belkin et al., GCN #27978; Moskvitin et al., GCN #27982; Belkin et al., GCN #27983) is clearly visible in the combined image. We measure a preliminary AB magnitude r = 21.20 +- 0.30 mag (t_mid = 6.770 d) calibrated against Pan-STARRS catalogue stars.
GCN Circular 27983
Subject
GRB 200613A: continued Kitab optical observations
Date
2020-06-18T22:04:59Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Novichonok (Petrozavodsk State University, KIAM), A.
Pozanenko (IKI),�� E. Mazaeva�� (IKI), A. Volnova (IKI), I. Molotov
(KIAM), Sh. Ehgamberdiev (UBAI) report on behalf of IKI-GRB-FuN:
We continued observations of GRB 200613A (Fermi GBM team, GCN 27926;
Bissaldi et al., GCN 27930; Ohno et al., GCN 27931; Yamaoka Ohno et al.,
GCN 27964) with�� Kitab-ISON RC-36 telescope in Clear filter. The optical
afterglow (e.g., Kann et al., GCN 27935; Pozanenko et al., GCN 27937;
Izzo et al., GCN 27939; Zhu et al., GCN 27943) is detected in a stacked
image. Preliminary photometry of the afterglow is following
Date,���������� UT start, t-T0,���� Exp.,�� Filter, OT,������ Err., UL
�������������������������������������� (mid, days)
2020-06-14�� 16:56:58 1.5086�� 5460���� CR���������� 19.68�� 0.13�� 21.2
2020-06-15�� 16:54:39 2.4997�� 4200���� CR���������� 20.4���� 0.3���� 20.4
2020-06-16�� 16:30:51 3.5005�� 7200 �� CR �� ���� n/d ���� n/d �� 20.5
The photometry is based on nearby SDSS DR12 stars
SDSS-DR12_id�������������� R(Lupton)
J101149.76+454320.7 12.404
J101245.45+455119.1 13.328
GCN Circular 27982
Subject
GRB 200613A: SAO RAS optical observations
Date
2020-06-18T18:15:13Z (5 years ago)
From
Moskvitin Alexander at SAO RAS <mosk@sao.ru>
A. Moskvitin (SAO RAS) on behalf of the larger GRB follow-up team
report.
We observed the field of the GRB 200613A (Fermi GBM team, GCN 27926;
Bissaldi et al., GCN 27930; Ohno et al., GCN 27931; Ohno et al.,
GCN 27964) with the 1m telescope of SAO RAS, Zeiss-1000,
equipped with the Multi-Mode Photometer-Polarimeter (MMPP).
We obtained 6 x 300 sec. images in Rc band on 2020.06.16
19:05:00--19:45:16 UT, T_mid - T0 = 3.5799 days.
The optical afterglow (Kann et al., GCN 27935; Pozanenko et al.,
GCN 27937; Izzo et al., GCN 27939; Zhu et al., GCN 27943;
Marshall, GCN 27944; Liu et al., GCN 27949; Belkin et al., GCN 27958;
Fu et al., GCN 27971; Belkin et al., GCN 27978) is clearly visible
in individual images and stacked frame with the brightness of
R = 20.58 +/- 0.05.
The photometry is based on nearby SDSS DR12 stars
SDSS_id R(Lupton)
J101206.52+454606.4 14.962
J101207.75+454443.4 17.877
J101220.88+454613.5 16.508
J101211.59+454721.5 18.659
J101209.58+454817.4 18.076
GCN Circular 27978
Subject
GRB 200613A: Mondy optical observations
Date
2020-06-18T10:44:12Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI),�� A. Pozanenko (IKI), E. Klunko (ISTP),�� M. Eselevich
(ISTP), E. Mazaeva (IKI), A. Volnova (IKI) report on behalf of IKI-GRB FuN:
We observed the�� GRB 200613A (Fermi GBM team, GCN 27926; Bissaldi et
al., GCN 27930; Ohno et al., GCN 27931; Yamaoka Ohno et al., GCN 27964)
with with AZT-33IK 1.5-m telescope of Sayan observatory (Mondy) starting
on 2020-06-17 (UT) 16:30:12.
The optical afterglow (e.g., Kann et al., GCN 27935; Pozanenko et al., GCN 27937; Izzo et al., GCN 27939; Zhu et al., GCN 27943; Marshall, GCN 27944; Liu et al., GCN 27949; Belkin et al., GCN 27958) is detected in a stacked image. Preliminary photometry of the afterglow is following
Date������������ UT start�� t-T0������ Filter Exp.���� OT������ Err. UL
�������������������������������������� (mid, days)�������� (s)
2020-06-17 16:30:12�� 4.47365 R���������� 22*120 20.94 0.14 22.1
The photometry is based on nearby SDSS stars
SDSS-DR12_id���������� R(Lupton)
J101206.52+454606.4 14.962
J101207.75+454443.4 17.877
J101206.50+454322.2 15.151
GCN Circular 27971
Subject
GRB 200613A: Jet-break from Xinglong-2.16m optical observations
Date
2020-06-17T01:39:34Z (5 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
S.Y. Fu, Z.P. Zhu, X. Liu, D. Xu, J. Zheng, A.Y. Zhou (NAOC) report:
We continued to observe the field of GRB 200613A (Fermi GBM team, GCN
27926; Bissaldi et al., GCN 27930; Ohno et al., GCN 27931) using the
Xinglong-2.16m telescope equipped with the BFOSC camera. Observations
were carried out starting at 12:55:02 UT on 2020-06-16, and 5x300s
R-band frames were obtained.
The optical afterglow (e.g., Kann et al., GCN 27935; Kennea et al., GCN
27936; Pozanenko et al., GCN 27937; Izzo et al., GCN 27939; Zhu et al.,
GCN 27943; Marshall, GCN 27944; Liu et al., GCN 27949; Belkin et al.,
GCN 27958) is still well detected in our stacked image, with R = 21.07
+/- 0.21 mag (at Tmid-T0 = 3.3175 days post-burst), calibrated with
nearby Pan-STARRS1.
Compared with our previous measurements, the afterglow now has turned to
decay quickly, with a temporal decay index of \alpha ~ 2.5 and a break
time of ~ 2.3 days post-burst. This break can be interpreted as a jet break.
Further observations are planned.
GCN Circular 27964
Subject
GRB 200613A: CALET Gamma-Ray Burst Monitor detection
Date
2020-06-16T12:34:45Z (5 years ago)
From
Valentin Pal'shin at AGU <val@phys.aoyama.ac.jp>
K. Yamaoka (Nagoya U),
A. Yoshida, T. Sakamoto, V. Pal'shin, S. Sugita (AGU),
Y. Kawakubo (LSU), S. Nakahira (RIKEN),
Y. Asaoka, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),
N. Cannady (GSFC/UMBC), M. L. Cherry (LSU),
S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena),
and the CALET collaboration:
The very long GRB 200613A (Fermi GBM observation: Bissaldi and Lesage,
GCN Circ. 27930; Fermi-LAT detection: Ohno et al., GCN Circ. 27931;
https://gcn.gsfc.nasa.gov/other/200613A.gcn3) triggered the CALET
Gamma-ray Burst Monitor (CGBM) at 05:30:08.657 UTC on 13 June 2020.
The burst signal was seen by all CGBM detectors.
Because of a problem in one of the ground alert processing script,
the GCN notice was not distributed automatically for this event.
The burst light curve shows the main emission episode which starts at
T-1 sec, peaks at T+11 sec and ends at T+35 sec, followed by a much weaker
emission episode which starts at ~T+278 sec and ends at ~T+423 sec.
The T90 and T50 durations measured by the SGM data are 381 +- 34 sec and
268 +- 237 sec (40-1000 keV), respectively.
The ground processed light curve is available at
http://cgbm.calet.jp/cgbm_trigger/ground/1276061388/
The CALET data used in this analysis are provided by
the Waseda CALET Operation Center located at the Waseda University.
GCN Circular 27962
Subject
GRB 200613A: MITSuME Akeno optical upper limits
Date
2020-06-16T01:48:34Z (5 years ago)
From
Katsuhiro L. Murata at Nagoya U <murata@u.phys.nagoya-u.ac.jp>
K. L. Murata, N. Ito, R. Hosokawa, R. Adachi, M. Niwano, F. Ogawa, N.
Nakamura, S. Ogata, H. Takamatsu, H. Hara, Y. Yatsu, and N.
Kawai(TokyoTech) report on behalf of the MITSuME collaboration:
We observed the field of GRB 200613A (Fermi GBM team, GCN 27926; Bissaldi
et al., GCN 27930; Ohno et al., GCN 27931) with the optical three color
(g', Rc, and Ic) CCD cameras attached to the MITSuME 50 cm telescope of
Akeno Observatory, Yamanashi, Japan.
The observation started on 2020-06-15 11:33. We did not detect the optical
afterglow (Kann et al., GCN 27935; Kennea et al., GCN 27936; Pozanenko et
al., GCN 27937; Izzo et al., GCN 27939; Zhu et al., GCN 27943; Marshall et
al., GCN 27944; Liu et al., GCN 27949; Belkin et al., GCN 27958) in the
stacked image. We obtained the 5-sigma limits as follows.
T0+[hour] MID-UT T-EXP[sec] 5-sigma limits
------------------------------------------------------------------------------------------------
54 2020-06-15T12:29:27 2040 g'>19.3, Rc>19.5, Ic>18.6
------------------------------------------------------------------------------------------------
T0+: Elapsed time after the burst
T-EXP: Total Exposure time
We used the PS1 catalog for flux calibration. The magnitudes are expressed
in the AB system. The images were processed in real-time through the
MITSuME GPU reduction pipeline (Niwano et al., submitted;
https://github.com/MNiwano/Eclair)
GCN Circular 27958
Subject
GRB 200613A: continued AbAO optical afterglow observations
Date
2020-06-15T21:49:44Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI), R. Ya. Inasaridze (AbAO), V. R.
Ayvazian (AbAO),�� G. V. Kapanadze (AbAO),�� E. Mazaeva�� (IKI), A. Volnova
(IKI), I. Molotov (KIAM)�� report on behalf of IKI-GRB-FuN:
We continue observations of Fermi�� GRB 200613A (Fermi GBM team, GCN
27926; Bissaldi et al., GCN 27930; Ohno et al., GCN 27931) with�� AS-32
telescope of Abastumani observatory in R-filter. The afterglow (e.g.,
Kann et al., GCN 27935; Kennea et al., GCN 27936; Pozanenko et al., GCN
27937; Izzo et al., GCN 27939; Zhu et al., GCN 27943) is detected in a
stacked image. Preliminary photometry of the afterglow is following
Date,���������� UT start, t-T0, Exp.,�� Filter, OT,������ Err., UL
�������������������������������������� (mid, days)
2020-06-15�� 17:44:15 2.53029 49*60�� R������������ 20.47 �� 0.11�� 21.9
The photometry is based on nearby SDSS DR12 stars
SDSS-DR12_id�������������� R(Lupton)
J101149.76+454320.7 12.404
J101245.45+455119.1 13.328
GCN Circular 27949
Subject
GRB 200613A: Continued Xinglong-2.16m optical observations
Date
2020-06-15T15:23:05Z (5 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
X. Liu, Z.P. Zhu, S.Y. Fu, D. Xu, J. Zheng, A.Y. Zhou (NAOC) report:
We continued to observe the field of GRB 200613A (Fermi GBM team, GCN
27926; Bissaldi et al., GCN 27930; Ohno et al., GCN 27931) using the
Xinglong-2.16m telescope equipped with the BFOSC camera. Observations
were carried out starting at 12:43:45 UT on 2020-06-15, and 5x300s
R-band frames were obtained.
The previously reported afterglow (e.g., Kann et al., GCN 27935; Kennea
et al., GCN 27936; Pozanenko et al., GCN 27937; Izzo et al., GCN 27939;
Zhu et al., GCN 27943) is still clearly detected in our stacked image,
with R = 20.0 +/- 0.1 mag (at Tmid-T0 = 2.311 days post-burst),
calibrated with nearby Pan-STARRS1.
Further observations are planned.
GCN Circular 27944
Subject
GRB 200613A: Swift/UVOT Detection
Date
2020-06-14T17:02:42Z (5 years ago)
From
Frank Marshall at Swift/UVOT <marshall@milkyway.gsfc.nasa.gov>
F. E. Marshall (NASA/GSFC)
reports on behalf of the Swift/UVOT team:
The Swift/UVOT began settled observations of the field of GRB 200613A
43621 s after the FERMI/LAT trigger (Ohno et al., GCN Circ. 27931).
A source consistent with the XRT position (Kennea et al., GCN Circ. 27936)
is detected in the initial UVOT exposures.
The preliminary UVOT position is:
RA (J2000) = 10:12:10.03 = 153.04178 (deg.)
Dec (J2000) = +45:45:14.1 = 45.75391 (deg.)
with an estimated uncertainty of 0.46 arc sec. (radius, 90% confidence).
This position is consistent with the optical counterparts
reported by Kann et al. (GCN Circ. 27935 & 27938) and
Pozanenko (GCN Circ. 27937).
Preliminary detections and 3-sigma upper limits using the UVOT photometric system
(Breeveld et al. 2011, AIP Conf. Proc. 1358, 373) for the early exposures are:
Filter T_start(s) T_stop(s) Exp(s) Mag
white 44416 45204 775 19.65 +/- 0.07
v 45211 45427 213 >18.6
u 43621 44409 775 19.02 +/- 0.12
The magnitudes in the table are not corrected for the Galactic extinction
due to the reddening of E(B-V) = 0.01 in the direction of the burst
(Schlegel et al. 1998).
GCN Circular 27943
Subject
GRB 200613A: Xinglong-2.16m optical observations
Date
2020-06-14T15:46:06Z (5 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
Z.P. Zhu, X. Liu, S.Y. Fu, D. Xu, J. Zheng, A.Y. Zhou (NAOC) report:
We observed the field of GRB 200613A (Fermi GBM team, GCN 27926;
Bissaldi et al., GCN 27930; Ohno et al., GCN 27931) using the
Xinglong-2.16m telescope equipped with the BFOSC camera. Observations
were carried out starting at 12:44:18 UT on 2020-06-14, and 5x300s
R-band frames were obtained.
The previously reported afterglow (e.g., Kann et al., GCN 27935; Kennea
et al., GCN 27936; Pozanenko et al., GCN 27937; Izzo et al., GCN 27939)
is clearly detected in our stacked image, with R = 19.45 +/- 0.05 mag
(at Tmid-T0 = 1.266 days post-burst), calibrated with nearby Pan-STARRS1.
GCN Circular 27939
Subject
GRB 200613A: Liverpool Telescope observations
Date
2020-06-14T10:46:42Z (5 years ago)
From
Luca Izzo at DARK/NBI <luca.izzo@gmail.com>
We observed the field of GRB 200613A (Bissaldi and Lesage, GCN #27930; Ohno et al., GCN #27931) with the IO:O camera mounted on the 2-m Liverpool Telescope located in La Palma, Spain. Observations started on June 13th at 22:20:26 UT (0.701 days after the GRB trigger) and we obtained a series of 60s images in the r filter.
We clearly detect in the stacked image the optical afterglow at the position reported by the Swift-XRT (Kennea et al., GCN #27936) and by OAJ, Kitab and AbAO (Kann et al., GCN #27935, GCN #27938; Pozanenko et al., GCN #27937). We measure a preliminary AB magnitude for the afterglow of r = 19.45 +- 0.20 mag (t_mid = 0.705 d) calibrated against Pan-STARRS catalogue stars.
GCN Circular 27938
Subject
GRB 200613A: OAJ Afterglow: Error in Coordinates
Date
2020-06-14T08:39:36Z (5 years ago)
From
Alexander Kann at IAA-CSIC <kann@iaa.es>
D. A. Kann (HETH/IAA-CSIC) corrects:
The source reported in Kann et al., GCN #27935, lies at coordinates:
RA (J2000) = 10:12:10.08
Dec. (J2000) = 45:45:14.26
and is therefore coincident with the XRT afterglow (Kennea et al., GCN
#27936) and the source detected earlier by Pozanenko et al. (GCN #27937)
as well as the potential host galaxy also mentioned by the latter GCN
(coordinates in GCN #27935 suffer the same error).
I'm sorry for any inconvenience I may have caused.
GCN Circular 27937
Subject
GRB 200613A: Kitab and AbAO optical afterglow observations, host galaxy candidate
Date
2020-06-14T08:21:00Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Pozanenko (IKI), S. Belkin (IKI), A. Novichonok (Petrozavodsk State
University, KIAM), R. Ya. Inasaridze (AbAO), V.R. Ayvazian (AbAO),�� G.
V.�� Kapanadze (AbAO),�� E. Mazaeva�� (IKI), A. Volnova (IKI), I. Molotov
(KIAM), Sh. Ehgamberdiev (UBAI) report on behalf of IKI-GRB-FuN:
We observed Fermi�� GRB 200613A (Fermi GBM team, GCN 27926; Bissaldi et
al., GCN 27930; Ohno et al., GCN 27931) with Kitab-ISON RC-36�� telescope
starting on 2020-06-13 (UT) 17:58:33 in Clear filter and AS-32 telescope
of Abastumani observatory in R. Within localization area of XRT
afterglow (Kennea et al., GCN27936) we�� detected the only one object in
coordinates
(J2000) 10:12:10.02 +45:45:13.7
The object is also visible in SDSS *(SDSS12 J101210.07+454512.8*) as a
galaxy**with a photometric redshift of z= 0.4745.
(We believe that Kann et al. (GCN 27935) observed and reported the same
object).
We suggest the SDSS galaxy *J101210.07+454512.8* is a host galaxy of GRB
200613A.
Preliminary photometry of the source is following
Date,���������� UT start, t-T0,���� Exp.,�� Filter,�� OT,���� Err., UL
�������������������������������������� (mid, days)
2020-06-13�� 17:58:33�� 0.54057 60*60 CR���������� 19.39�� 0.20�� 19.8
2020-06-13�� 18:16:59�� 0.55024 50*60�� R���������� 19.27�� 0.07�� 22.1
The photometry is based on nearby SDSS DR12 stars
SDSS-DR12_id����������� ��� R(Lupton)
J101149.76+454320.7 12.404
J101245.45+455119.1 13.328
GCN Circular 27936
Subject
GRB 200613A: Swift-XRT afterglow detection
Date
2020-06-14T04:46:25Z (5 years ago)
From
Kim Page at U.of Leicester <klp5@leicester.ac.uk>
J.A. Kennea (PSU), A. Tohuvavohu (U. Toronto), B. Sbarufatti (PSU),
J.P. Osborne (U. Leicester), K.L. Page (U. Leicester), A. Melandri
(INAF-OAB), T. Sbarrato (INAF-OAB), P. D'Avanzo (INAF-OAB) and P.A.
Evans (U. Leicester) report on behalf of the Swift-XRT team:
Swift-XRT has performed follow-up observations of the
Fermi/LAT-detected burst GRB 200613A (Ohno et al. GCN Circ. 27931),
collecting 4.9 ks of Photon Counting (PC) mode data between T0+43.6 ks
and T0+67.6 ks.
Seven uncatalogued X-ray sources are detected, of which one ("Source
2") is above the RASS limit, and is therefore likely the GRB afterglow.
Using 4079 s of PC mode data and 4 UVOT images, we find an enhanced XRT
position (using the XRT-UVOT alignment and matching UVOT field sources
to the USNO-B1 catalogue): RA, Dec = 153.04199, +45.75408 which is
equivalent to:
RA (J2000): 10h 12m 10.08s
Dec(J2000): +45d 45' 14.7"
with an uncertainty of 1.4 arcsec (radius, 90% confidence). This
position is 5.8 arcmin from the Fermi/LAT position.
The light curve can be modelled with a power-law decay with a decay
index of alpha=1.6 (+/-0.5).
A spectrum formed from the PC mode data can be fitted with an absorbed
power-law with a photon spectral index of 1.89 (+0.14, -0.13). The
best-fitting absorption column is 2.3 (+/-0.5) x 10^21 cm^-2, in
excess of the Galactic value of 8.4 x 10^19 cm^-2 (Willingale et al.
2013). The counts to observed (unabsorbed) 0.3-10 keV flux conversion
factor deduced from this spectrum is 3.5 x 10^-11 (4.7 x 10^-11) erg
cm^-2 count^-1.
A summary of the PC-mode spectrum is thus:
Total column: 2.3 (+/-0.5) x 10^21 cm^-2
Galactic foreground: 8.4 x 10^19 cm^-2
Excess significance: 7.5 sigma
Photon index: 1.89 (+0.14, -0.13)
The results of the XRT-team automatic analysis are available at
http://www.swift.ac.uk/xrt_products/00021003.
The results of the full analysis of the XRT observations are available
at https://www.swift.ac.uk/ToO_GRBs/00021003.
This circular is an official product of the Swift-XRT team.
GCN Circular 27935
Subject
GRB 200613A: Candidate afterglow from OAJ
Date
2020-06-13T23:06:59Z (5 years ago)
From
Alexander Kann at IAA-CSIC <kann@iaa.es>
D. A. Kann (HETH/IAA-CSIC), A. de Ugarte Postigo (HETH/IAA-CSIC,
DARK/NBI), M. Blazek, C. Thoene, J. F. Agui Fernandez (all
HETH/IAA-CSIC), A. Moreno, and H. Vasquez Ramio (both CEFCA) report:
We observed the LAT position of the bright GRB 200613A (Fermi-LAT
detection: Ohno et al. GCN #27931, Fermi GBM detection: Bissaldi &
Lesage, GCN #27930) with the T80 0.8m telescope at the Observatorio de
Javalambre (Teruel, Spain). Observations consisted of 3 x 300 s in g', 3
x 300 s in r', and 5 x 180 s in i'.
At the position of the second reported XRT source, we detect an optical
source not seen to several magnitudes deeper in PanSTARRS archival
imaging. The source is detected in each frame. The position is RA
(J2000) = 10:12:10.08, Dec. (J2000) = 45:54:14.26 with an estimated
error of 0".5. There is also a cataloged SDSS source nearby at RA
(J2000) = 10:12:10.075, Dec. (J2000) = 45:54:12.88, this may be the host
galaxy of the GRB, though we note nothing is detected here in the
PanSTARRS image.
Further analysis is in progress. Spectroscopic observations are
encouraged.
GCN Circular 27933
Subject
Fermi GRB 200613A: Global MASTER-Net observations report
Date
2020-06-13T18:15:10Z (5 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin,
V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva,
D.Kuvshinov, D. Cheryasov
(Lomonosov Moscow State University, SAI, Physics Department),
R. Podesta, C.Lopez, F. Podesta, C.Francile
(Observatorio Astronomico Felix Aguilar OAFA),
H.Levato
(Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE),
R. Rebolo, M. Serra
(The Instituto de Astrofisica de Canarias),
D. Buckley
(South African Astronomical Observatory),
O.A. Gres, N.M. Budnev, O.Ershova
(Irkutsk State University, API),
A. Tlatov, D. Dormidontov
(Kislovodsk Solar Station of the Pulkovo Observatory),
V. Yurkov, A. Gabovich, Yu. Sergienko
(Blagoveschensk Educational State University)
MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 200613A ( Fermi GBM team, GCN 27926) errorbox 44637 sec after notice time and 44665 sec after trigger time at 2020-06-13 17:54:33 UT, with upper limit up to 18.2 mag. Observations started at twilight. The observations began at zenith distance = 42 deg. The sun altitude is -9.8 deg.
The galactic latitude b = 51 deg., longitude l = 173 deg.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=1380771
We obtain a following upper limits.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|____________________________________|_____|_______|_______|________
44756 | 2020-06-13 17:54:33 | MASTER-Kislovodsk | (10h 11m 31.91s , +46d 20m 06.9s) | C | 180 | 17.2 |
44756 | 2020-06-13 17:54:33 | MASTER-Kislovodsk | (10h 11m 44.05s , +45d 51m 37.8s) | C | 180 | 17.0 |
44897 | 2020-06-13 17:57:54 | MASTER-Kislovodsk | (09h 50m 41.65s , +52d 24m 17.7s) | C | 60 | 17.4 |
44897 | 2020-06-13 17:57:54 | MASTER-Kislovodsk | (10h 04m 14.80s , +51d 58m 14.9s) | C | 60 | 17.2 |
44977 | 2020-06-13 17:59:15 | MASTER-Kislovodsk | (09h 50m 35.85s , +50d 23m 21.1s) | C | 60 | 17.5 |
44977 | 2020-06-13 17:59:15 | MASTER-Kislovodsk | (10h 03m 33.20s , +49d 57m 12.1s) | C | 60 | 17.5 |
45138 | 2020-06-13 18:01:55 | MASTER-Kislovodsk | (09h 51m 19.61s , +48d 25m 06.7s) | C | 60 | 17.6 |
45138 | 2020-06-13 18:01:55 | MASTER-Kislovodsk | (10h 03m 45.71s , +47d 58m 51.5s) | C | 60 | 17.5 |
45278 | 2020-06-13 18:03:16 | MASTER-Kislovodsk | (10h 11m 37.07s , +46d 17m 06.7s) | C | 180 | 18.2 |
45278 | 2020-06-13 18:03:16 | MASTER-Kislovodsk | (10h 11m 44.14s , +45d 48m 54.3s) | C | 180 | 18.2 |
45419 | 2020-06-13 18:06:37 | MASTER-Kislovodsk | (09h 50m 42.12s , +52d 24m 34.5s) | C | 60 | 18.0 |
45419 | 2020-06-13 18:06:37 | MASTER-Kislovodsk | (10h 04m 12.70s , +51d 58m 30.7s) | C | 60 | 17.8 |
45499 | 2020-06-13 18:07:57 | MASTER-Kislovodsk | (09h 50m 36.32s , +50d 23m 57.5s) | C | 60 | 18.1 |
45499 | 2020-06-13 18:07:57 | MASTER-Kislovodsk | (10h 03m 31.39s , +49d 57m 48.8s) | C | 60 | 17.9 |
Filter C is a clear (unfiltred) band.
The observation and reduction will continue.
The message may be cited.
GCN Circular 27932
Subject
GRB 200613A: Swift ToO observations
Date
2020-06-13T17:08:25Z (5 years ago)
From
Phil Evans at U of Leicester <pae9@leicester.ac.uk>
P. A. Evans (U. Leicester) reports on behalf of the Swift team:
Swift has initiated a ToO observation of the Fermi/LAT GRB 200613A.
Automated analysis of the XRT data will be presented online at
https://www.swift.ac.uk/ToO_GRBs/00021003
Any uncatalogued X-ray sources detected in this analysis will be
reported on this website and via GCN COUNTERPART notices. These are
not necessarily related to the Fermi/LAT event. Any X-ray source
considered to be a probable afterglow candidate will be reported via a
GCN Circular after manual consideration.
Details of the XRT automated analysis methods are detailed in Evans et
al. (2007, A&A, 469, 379; 2009, MNRAS, 397, 1177 and 2014, ApJS, 210, 8).
This circular is an official product of the Swift-XRT team.
GCN Circular 27931
Subject
GRB 200613A: Fermi-LAT detection
Date
2020-06-13T17:06:26Z (5 years ago)
From
Masanori Ohno at Hiroshima University <ohno@astro.hiroshima-u.ac.jp>
M. Ohno (Hiroshima Univ.), M. Kovacevic (INFN Perugia), E. Bissaldi
(Politecnico & INFN Bari), M. Axelsson (KTH & Stockholm Univ.) and F. Longo
(University and INFN, Trieste) report on behalf of the Fermi-LAT
Collaboration:
On June 13, 2020, Fermi-LAT detected high-energy emission from
GRB 200613A, which was also detected by Fermi-GBM at T0 = 05:30:08 UT (GCN
27926, Bissaldi et al. GCN 27930).
The GRB is detected at high energy (>100 MeV) by Fermi-LAT at a location
of:
RA, Dec = 153.03, 45.85 (degrees, J2000) with an error radius of 0.14 deg
(90% containment, statistical error only).
This was ~29 deg from the LAT boresight when observations started, and is
~5.9 deg from the GBM final ground position.
The photon flux above 100 MeV in the time interval 0 - 10.000 s after the
GBM trigger is 6.6e-07 +/- 3.6e-07 ph/cm2/s.
The estimated photon index above 100 MeV is -1.73 +/- 0.36. The
highest-energy photon is a 7.6 GeV event which is observed ~6.2 ks after
the GBM trigger.
A Swift ToO has been approved for this burst.
The Fermi-LAT point of contact for this burst is Masanori Ohno (
ohno@astro.hiroshima-u.ac.jp).
The Fermi-LAT is a pair conversion telescope designed to cover
the energy band from 20 MeV to greater than 300 GeV.
It is the product of an international collaboration between
NASA and DOE in the U.S. and many scientific institutions
across France, Italy, Japan and Sweden.
GCN Circular 27930
Subject
GRB 200613A: Fermi GBM observation
Date
2020-06-13T15:48:47Z (5 years ago)
From
Elisabetta Bissaldi at INFN,Bari <elisabetta.bissaldi@ba.infn.it>
E. Bissaldi (Politecnico and INFN Bari) and S. Lesage (UAH)
report on behalf of the Fermi GBM Team:
"At 05:30:08.21 UT on 13 June 2020, the Fermi Gamma-Ray Burst Monitor (GBM)
triggered and located GRB 200613A (trigger 613719013 / 200613229).
The Fermi GBM Final Real-time Localization is reported in GCN #27926.
The angle from the Fermi LAT boresight at the GBM trigger time is 25 degrees.
The GBM light curve shows a bright initial emission episode
followed by a later weaker emission episode
with a duration (T90) of about 470 s (50-300 keV).
The time-averaged spectrum from T0 to T0+50 s is
best fit by a Band function with Epeak = 111 +/- 3 keV,
alpha = -1.08 +/- 0.02, and beta = -2.58 +/- 0.08.
The event fluence (10-1000 keV) in this time interval is
(4.10 +/- 0.05)E-05 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+12.2 s in the 10-1000 keV band
is 27.2 +/- 0.4 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog:
https://heasarc.gsfc.nasa.gov/W3Browse/fermi/fermigbrst.html
For Fermi GBM data and info, please visit the official Fermi GBM Support Page:
https://fermi.gsfc.nasa.gov/ssc/data/access/gbm/"
GCN Circular 27926
Subject
GRB 200613A: Fermi GBM Final Real-time Localization
Date
2020-06-13T05:40:32Z (5 years ago)
From
Fermi GBM Team at MSFC/Fermi-GBM <do_not_reply@GIOC.nsstc.nasa.gov>
The Fermi GBM team reports the detection of a likely LONG GRB
At 05:30:08 UT on 13 Jun 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200613A (trigger 613719013.213684 / 200613229).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 149.1, Dec = 51.1 (J2000 degrees, equivalent to J2000 09h 56m, 51d 06'), with a statistical uncertainty of 1.0 degrees.
The angle from the Fermi LAT boresight is 25.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200613229/quicklook/glg_skymap_all_bn200613229.png
The HEALPix FITS file, including the estimated localization systematic, can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200613229/quicklook/glg_healpix_all_bn200613229.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200613229/quicklook/glg_lc_medres34_bn200613229.gif