ANTARES 191011A
GCN Circular 26005
Subject
ANTARES 191011A: AMON + ANTARES Identification of a High-Energy Neutrino + Fermi LAT Coincidence
Date
2019-10-14T13:52:26Z (6 years ago)
From
Derek B. Fox at Penn State <dbf11@psu.edu>
C. F. Turley and D. B. Fox (for AMON https://www.amon.psu.edu/),
M. Ageron (CNRS/CPPM), A.Coleiro (Univ. de Paris/APC), D. Dornic
(CNRS/CPPM), & A. Kouchner (Univ. de Paris/APC ) (for ANTARES) report:
"During operations of the AMON ANTARES + Fermi LAT neutrino +
gamma-ray multimessenger alerts, at 2019 October 11 at 15:54:32 UT, we
identified a coincidence between a single ANTARES neutrino and a Fermi
LAT photon (false alarm rate of 1.21 per year). An alert was
automatically generated and, after human review, distributed to AMON
partner facilities at 2019 October 14 at 13:23:22 UT. We are now
reporting this alert publicly. Alert details are as follows:
Date: 11 October 2019
Time: 15:54:32 UT
R.A.: 03:19:51.8 (J2000)
Dec.: 18:48:27 (J2000)
r_90: 0.40 deg (90%-containment)
FAR: 1.212 yr-1
ANTARES 191011A is a high-energy neutrino-induced muon event detected
by ANTARES (Ageron et al. 2011) with coordinates R.A. 51.02,
Dec. +19.12 (J2000) at 15:57:34 UT, and a p-value based on the number
of hits used for the reconstruction of 0.542, which relates to the
deposited energy.
The minimum false alarm rate coincidence from our analysis associates
this neutrino with one Fermi LAT photon. The photon is detected at
15:51:30 UT with coordinates R.A. 49.9403, Dec. 18.7982 and energy 8.6
GeV. The best-fit localization and uncertainty for a point source
yielding the ANTARES 191011A neutrino and the photon is as quoted
above. The false alarm rate for ANTARES neutrino + Fermi LAT gamma-ray
coincidences of this quality or better is 1 per 0.83 years.
Details of the ANTARES + Fermi LAT coincidence search procedures are
provided in Ayala Solares et al. (AMON + ANTARES) 2019 (ApJ accepted,
ArXiv:1904.06420). False alarm rates are established from 73,000 years
of simulated observation and take into account the point spread
functions of the associated neutrino + photons, the known backgrounds
at this sky position, the energy of the neutrino, and the energies of
the Fermi LAT photons (within broad ranges).
This transient is near the Fermi source 3FGL J0319.8+1847, a blazar
also known as RBS0413.
The AMON alert for this coincidence is provided in GCN Alert format
below."
//////////////////////////////////////////////////////////////////////
TITLE: GCN/AMON NOTICE
NOTICE_DATE: Fri 11 October 2019 15:54:32.38 UT
NOTICE_TYPE: Fermi-LAT ANTARES coincidence
AMON_NUM: 1436255238
SRC_RA: 49.9659d {+03:19:51.8} (J2000),
49.2533d {+03:17:00.8} (1950)
SRC_DEC: +18.8074d {+18:48:27} (J2000),
+18.6271d {+18:37:38} (1950)
SRC_ERROR90: 0.40 [deg, stat, 90% containment]
DISCOVERY_DATE: 18753 TJD; 284 DOY; 19/10/11 (yy/mm/dd)
DISCOVERY_TIME: 57272 SOD {15:54:32.38} UT
REVISION: 0
DELTA_T: 363.24 [sec]
SIGMA_T: 181.62 [sec]
FAR: 1.21 [yr^-1]
SUN_POSTN: 197.5417d {+13h 10m 10s} -7.4458d {-07d 26��� 45"}
SUN_DIST: 146.52 [deg] Sun_angle= 9.768 [hr]
MOON_POSTN: 9.6792d {+00h 38m 43s} -1.2442d {-01d 14��� 39"}
MOON_DIST: 44.36 [deg]
GAL_COORDS: 165.0713, -31.6601 [deg] galactic lon,lat of the event
COMMENTS: ALERT FROM FERMI-LAT ANTARES COINCIDENCE STREAM
GCN Circular 26006
Subject
ANTARES 191011A: MASTER optical observation befor and after trigger
Date
2019-10-14T18:12:43Z (6 years ago)
From
Vladimir Lipunov at Moscow State U/Krylov Obs <lipunov@xray.sai.msu.ru>
V. Lipunov, O.Gress, E. Gorbovskoy, V.Kornilov, N.Tyurina, F.Balakin,P.Balanutsa,A.Kuznetsov, V.Vladimirov, D. Vlasenko,
I.Gorbunov, D. Zimnukhov, V.Senik, T.Pogrosheva, D.Kuvshinov(Lomonosov Moscow State University, SAI, Physics Department),
R. Rebolo, M. Serra(The Instituto de Astrofisica de Canarias),
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),
D. Buckley(South African Astronomical Observatory),
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 Global Robotic Net (http://observ.pereplet.ru, Lipunov et al.,2010, Advances in Astronomy, vol.2010, 30L)
observed ANTARES 191011A
(Turley et al. GCN 26005, Ttrig=2019-10-11 15:54:32UT,Tnotice=2019-10-14 14:18:07UT,RA,Dec(2000)=03:19:51.8 +18:48:27 +-0.4d )
at MASTER-IAC and MASTER-Kislovodsk during MASTER own survey.
MASTER didn't receive this alert through usual GCN socket system.
MASTER-IAC robotic telescope located in Spain, IAC Teide Observatory,
observed Antares 191011A alert errorbox during own survey 1 day 24617 sec after trigger time at
2019-10-12 22:44:49 UT, with upper limit up to 18.4 mag on single images .
The observations began at zenit distance = 60 deg. The sun altitude was -54.1 deg.
MASTER-Kislovodsk robotic telescope located in Russia, Kislovodsk Solar Station of Pulkovo observatory,
observed Antares 191011A alert errorbox 1 days 28366 sec after trigger time at
2019-10-12 23:47:18 UT, with upper limit up to 18.2 mag.
The observations began at zenit distance = 26 deg. The sun altitude was -38.6 deg.
The galactic latitude b = -60 deg., longitude l = 98 deg.
Also we have a several images (4 square degrees) ~14 hours before trigger
time at MASTER-IAC with upper limit up to 18.8, made during MASTER own survey.
We obtained the following upper limits:
Tmid-T0 | Date Time | Site | Coord (J2000) _ |Filt.| Expt. | Limit| Comment
_________|_____________________|_____________________|_____________________________________|_____|_______|______|________
-50486 | 2019-10-11 01:52:35 | MASTER-IAC | (03h 24m 41.758s ,+17d 56m 09.20s) | C | 60 | 18.8 |
-50486 | 2019-10-11 01:52:36 | MASTER-IAC | (03h 16m 09.822s ,+18d 00m 05.97s) | C | 60 | 18.7 |
-50047 | 2019-10-11 01:59:54 | MASTER-IAC | (03h 27m 10.598s ,+19d 56m 45.10s) | C | 60 | 18.8 |
-50047 | 2019-10-11 01:59:54 | MASTER-IAC | (03h 18m 32.410s ,+20d 00m 35.27s) | C | 60 | 18.6 |
111048 | 2019-10-12 22:44:49 | MASTER-IAC | (03h 24m 45.696s ,+17d 57m 08.38s) | C | 60 | 17.7 |
111078 | 2019-10-12 22:44:49 | MASTER-IAC | (03h 24m 45.697s ,+17d 57m 08.49s) | C | 120 | 18.3 | Coadd
111049 | 2019-10-12 22:44:50 | MASTER-IAC | (03h 16m 13.118s ,+18d 00m 55.10s) | C | 60 | 17.5 |
111079 | 2019-10-12 22:44:50 | MASTER-IAC | (03h 16m 13.118s ,+18d 00m 55.06s) | C | 120 | 18.2 | Coadd
111185 | 2019-10-12 22:47:06 | MASTER-IAC | (03h 18m 31.476s ,+20d 00m 25.29s) | C | 60 | 17.6 |
111215 | 2019-10-12 22:47:06 | MASTER-IAC | (03h 18m 31.481s ,+20d 00m 25.33s) | C | 120 | 18.3 | Coadd
111185 | 2019-10-12 22:47:06 | MASTER-IAC | (03h 27m 10.213s ,+19d 56m 38.51s) | C | 60 | 17.9 |
111215 | 2019-10-12 22:47:06 | MASTER-IAC | (03h 27m 10.214s ,+19d 56m 38.66s) | C | 120 | 18.4 | Coadd
113619 | 2019-10-12 23:27:40 | MASTER-IAC | (03h 16m 10.561s ,+18d 00m 52.50s) | C | 60 | 17.8 |
113619 | 2019-10-12 23:27:40 | MASTER-IAC | (03h 24m 44.154s ,+17d 57m 10.10s) | C | 60 | 18.0 |
113757 | 2019-10-12 23:29:59 | MASTER-IAC | (03h 18m 29.321s ,+20d 00m 31.83s) | C | 60 | 17.9 |
113757 | 2019-10-12 23:29:59 | MASTER-IAC | (03h 27m 09.160s ,+19d 56m 49.43s) | C | 60 | 18.1 |
114797 | 2019-10-12 23:47:18 | MASTER-Kislovodsk | (03h 26m 21.586s ,+18d 04m 20.23s) | C | 60 | 17.7 |
114797 | 2019-10-12 23:47:18 | MASTER-Kislovodsk | (03h 17m 35.971s ,+18d 29m 50.56s) | C | 60 | 18.0 |
114894 | 2019-10-12 23:48:56 | MASTER-Kislovodsk | (03h 19m 58.458s ,+20d 28m 33.57s) | C | 60 | 18.2 |
Filter C is a clear (unfiltred) band.
Real time updated cover map and OT discovered available here:
https://master.sai.msu.ru/site/master2/observ.php?id=1166369
The observation,reduction, analysys will be continued.
This message can be cited.