GRB 200114A
GCN Circular 26735
Subject
GRB 200114A: Fermi GBM Final Real-time Localization
Date
2020-01-14T03:51:01Z (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 03:40:43 UT on 14 Jan 2020, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 200114A (trigger 600666048.723634 / 200114153).
The on-ground calculated location, using the Fermi GBM trigger data, is RA = 199.4, Dec = -0.3 (J2000 degrees, equivalent to J2000 13h 17m, 0d 18'), with a statistical uncertainty of 2.6 degrees.
The angle from the Fermi LAT boresight is 72.0 degrees.
The skymap can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200114153/quicklook/glg_skymap_all_bn200114153.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/bn200114153/quicklook/glg_healpix_all_bn200114153.fit
The GBM light curve can be found here:
https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2020/bn200114153/quicklook/glg_lc_medres34_bn200114153.gif
GCN Circular 26736
Subject
GRB 200114A: BALROG localization (Fermi Trigger 600666048 / GRB 200114153)
Date
2020-01-14T04:10:04Z (5 years ago)
From
Jochen Greiner at MPE,Garching <jcg@mpe.mpg.de>
F. Kunzweiler, B. Biltzinger, F. Berlato, J. Burgess & J. Greiner (all MPE Garching) report:
The public trigdat data of the Fermi Gamma-ray Burst Monitor (GBM) trigger
600666048 at 03:40:43 on 14 Jan. 2020 were automatically fitted for spectrum
and sky location with BALROG (Burgess et al. 2018, MNRAS 476, 1427;
Berlato et al. 2019, ApJ 873, 60).
The best-fit position (1 sigma statistical errors) is:
RA(2000.0) = 203.7+/-1.8 deg
Decl.(2000.0) = -2.4+/-1.7 deg
We estimate an additional systematic error of 2 deg.
Further details are available at:
https://grb.mpe.mpg.de/grb/GRB200114153/
The Healpix map can be downloaded from:
https://grb.mpe.mpg.de/grb/GRB200114153/healpix
The location parameters are available as JSON at:
https://grb.mpe.mpg.de/grb/GRB200114153/json
GCN Circular 26746
Subject
GRB 200114A: AstroSat CZTI detection
Date
2020-01-14T13:17:48Z (5 years ago)
From
Ramkrishna Gaikwad at IUCAA/AstroSat <ramkrishna@iucaa.in>
R. Gaikwad, S. Gupta, V. Sharma and D. Bhattacharya (IUCAA), V. Bhalerao (IIT-B), A. R. Rao (TIFR) and S. Vadawale (PRL) report on behalf of the AstroSat CZTI collaboration:
Analysis of AstroSat CZTI data showed the detection of a GRB 200114A, which was also detected by Fermi GBM Final Real-time Localization (GCN #26735), BALROG localization (Kunzweiler F. et al., GCN #26736) and Global MASTER-Net (Lipunov V. et al., GCN #26737).
The source was clearly detected in the 40-200 keV energy range. The light curve showed multiple peaks of emission with the strongest peak at 2020-01-14 03:40:45.0 UT. The measured peak count rate associated with the burst is 267 cts/s above the background in the combined data of four quadrants, with a total of 2222 cts. The local mean background count rate was 487 cts/s. Using cumulative rates, we measure a T90 of 38.4 s.
It was also clearly detected in the CsI anticoincidence (Veto) detector in the 100-500 keV energy range.
CZTI GRB detections are reported regularly on the payload site at http://astrosat.iucaa.in/czti/?q=grb. CZTI is built by a TIFR-led consortium of institutes across India, including VSSC, ISAC, IUCAA, SAC and PRL. The Indian Space Research Organisation funded, managed and facilitated the project.
GCN Circular 26754
Subject
GRB 200114A: DDOTI/OAN optical observations report
Date
2020-01-15T03:17:26Z (5 years ago)
From
Emma Margarita Pereyra Talamantes at IA-UNAM Ensenada <mpereyra@astro.unam.mx>
Margarita Pereyra (UNAM), Eleonora Troja (GSFC/UMD), Alan M. Watson
(UNAM), Nat Butler (ASU), Rosa L. Becerra (UNAM), Diego Gonzalez (UNAM),
Alexander Kutyrev (GSFC/UMD), William H. Lee (UNAM), and Tanner Wolfram
(ASU), Simone Dichiara (GSFC/UMD) report:
We observed the field of GRB 200114A detected by Fermi/GBM and AstroSat
CZTI (Fermi GBM Team, GCN Circ. 26735; Gaikwad et al., GCN Circ. 26746),
with the DDOTI/OAN wide-field imager at the Observatorio Astron��mico
Nacional on Sierra San Pedro Martir (http://ddoti.astroscu.unam.mx) from
2020-01-14 09:27 to 2020-01-14 13:18 UTC (5.78 to 9.63 hours after the
event).
We observed a region of 13.6 degrees in RA by 10.2 degrees in declination
centered on the peak of the Fermi GBM on-ground localization at 13:17:31
-00:19:12 J2000 (Fermi GBM Team, GCN Circ. 26735). This region contains
about 140 square degrees. We obtained about 30 to 36 minutes total exposure
across the region. We calibrated our images against the APASS catalog. Our
10-sigma limiting magnitude are typically between w = 18.70 and w = 18.80.
We found only one source with significant fading above our 10-sigma limit.
This source is at 12:55:26.84 -00:21:23.8 J2000 and fades from w = 17.0 to
w = 19.5 during our observations. However, the Pan-STARRS DR1 shows a 19
mag star at the source position, which rules it out as a GRB optical
counterpart.
Comparing to the USNO-B1 and Pan-STARRS DR1 catalogs, we detected no
uncatalogued sources to our 10-sigma limit.
We thank the staff of the Observatorio Astron��mico Nacional in San Pedro
M��rtir.
--
*Dr. Margarita Pereyra *
*FFTF, Schlumberger Foundation Alumnae*
----------------------------------------------------------------------------------------------------------------
*Catedr��tico Conacyt*
*Instituto de Astronom��a de la UNAM,*
*Km. 107 Carretera Tijua**na-Ensenada, *
*Ensenada Baja California, M��xico. C.P. 22860*
Oficina: 405
Skype: margarita-pereyra
GCN Circular 26773
Subject
GRB 200114A: Insight-HXMT/HE detection
Date
2020-01-15T13:02:23Z (5 years ago)
From
Ce Cai at IHEP <caice@ihep.ac.cn>
C. Cai, S. Xiao, Y. F. Du, Y. G. Zheng, Q. Luo, Q. B. Yi,
Y. Huang, C. K. Li, G. Li, X. B. Li, J. Y. Liao, S. L. Xiong,
C. Z. Liu, X. F. Li, Z. W. Li, Z. Chang, A. M. Zhang,
Y. F. Zhang, X. F. Lu, C. L. Zou (IHEP), Y. J. Jin,
Z. Zhang (THU), T. P. Li (IHEP/THU), F. J. Lu, L. M. Song,
M. Wu, Y. P. Xu, S. N. Zhang (IHEP),
report on behalf of the Insight-HXMT team:
At 2020-01-14T03:40:45.50 (T0), Insight-HXMT/HE detected
GRB 200114A (trigger ID: HEB200114153) in a routine search of the data,
which also triggered Fermi/GBM (GCN #26735).
The Insight-HXMT/HE light curve mainly consists of multiple
pulses with a duration (T90) of 30.02 s measured from T0-2.72 s.
The 1-ms peak rate, measured from T0-0.57 s, is 1112 cnts/sec.
The total counts from this burst is 6070 counts.
URL_LC: http://www.hxmt.org/images/GRB/HEB200114153_lc.jpg
All measurements above are made with the CsI detectors operating in the
regular mode with the energy range of about 80-800 keV (deposited energy).
Only gamma-rays with energy greater than about 200 keV can penetrate
the spacecraft and leave signals in the CsI detectors installed inside
of the telescope.
Insight-HXMT is the first Chinese space X-ray telescope, which was
funded jointly by the China National Space Administration (CNSA) and
the Chinese Academy of Sciences (CAS).
More information about it could be found at:
http://www.hxmt.org.