- GCN NOTICE
TITLE: GCN/FERMI NOTICE
NOTICE_DATE: Sat 07 Nov 15 20:25:17 UT
NOTICE_TYPE: Fermi-GBM Flight Position
RECORD_NUM: 46
TRIGGER_NUM: 468620696
GRB_RA: 24.100d {+01h 36m 24s} (J2000),
24.339d {+01h 37m 21s} (current),
23.349d {+01h 33m 24s} (1950)
GRB_DEC: +44.800d {+44d 47' 60"} (J2000),
+44.880d {+44d 52' 50"} (current),
+44.545d {+44d 32' 42"} (1950)
GRB_ERROR: 15.70 [deg radius, statistical plus systematic]
GRB_INTEN: 188 [cnts/sec]
DATA_SIGNIF: 9.10 [sigma]
INTEG_TIME: 1.024 [sec]
GRB_DATE: 17333 TJD; 311 DOY; 15/11/07
GRB_TIME: 73492.30 SOD {20:24:52.30} UT
GRB_PHI: 151.00 [deg]
GRB_THETA: 45.00 [deg]
DATA_TIME_SCALE: 1.0240 [sec]
HARD_RATIO: 0.36
LOC_ALGORITHM: 3 (version number of)
MOST_LIKELY: 91% GRB
2nd_MOST_LIKELY: 4% GRO_J0422_32
DETECTORS: 0,0,0, 0,0,0, 1,0,0, 1,0,0, 0,0,
SUN_POSTN: 222.64d {+14h 50m 33s} -16.36d {-16d 21' 52"}
SUN_DIST: 147.60 [deg] Sun_angle= -10.8 [hr] (East of Sun)
MOON_POSTN: 182.44d {+12h 09m 45s} -0.91d {-00d 54' 23"}
MOON_DIST: 131.95 [deg]
MOON_ILLUM: 13 [%]
GAL_COORDS: 131.26,-17.34 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 40.14, 32.09 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn151107851/quicklook/glg_lc_medres34_bn151107851.gif
COMMENTS: Fermi-GBM Flight-calculated Coordinates.
COMMENTS: This trigger occurred at longitude,latitude = 125.42,25.22 [deg].
COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
- GCN NOTICE
TITLE: GCN/FERMI NOTICE
NOTICE_DATE: Sat 07 Nov 15 20:25:26 UT
NOTICE_TYPE: Fermi-GBM Flight Position
RECORD_NUM: 57
TRIGGER_NUM: 468620696
GRB_RA: 10.633d {+00h 42m 32s} (J2000),
10.855d {+00h 43m 25s} (current),
9.936d {+00h 39m 45s} (1950)
GRB_DEC: +48.750d {+48d 45' 00"} (J2000),
+48.837d {+48d 50' 12"} (current),
+48.476d {+48d 28' 34"} (1950)
GRB_ERROR: 4.58 [deg radius, statistical plus systematic]
GRB_INTEN: 747 [cnts/sec]
DATA_SIGNIF: 46.90 [sigma]
INTEG_TIME: 2.048 [sec]
GRB_DATE: 17333 TJD; 311 DOY; 15/11/07
GRB_TIME: 73492.30 SOD {20:24:52.30} UT
GRB_PHI: 137.00 [deg]
GRB_THETA: 45.00 [deg]
DATA_TIME_SCALE: 2.0480 [sec]
HARD_RATIO: 0.33
LOC_ALGORITHM: 3 (version number of)
MOST_LIKELY: 96% GRB
2nd_MOST_LIKELY: 3% Generic Transient
DETECTORS: 0,0,0, 0,0,0, 1,0,0, 1,0,0, 0,0,
SUN_POSTN: 222.64d {+14h 50m 33s} -16.36d {-16d 21' 52"}
SUN_DIST: 138.50 [deg] Sun_angle= -9.9 [hr] (East of Sun)
MOON_POSTN: 182.44d {+12h 09m 46s} -0.91d {-00d 54' 24"}
MOON_DIST: 131.53 [deg]
MOON_ILLUM: 13 [%]
GAL_COORDS: 121.42,-14.10 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 32.36, 39.90 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn151107851/quicklook/glg_lc_medres34_bn151107851.gif
COMMENTS: Fermi-GBM Flight-calculated Coordinates.
COMMENTS: This trigger occurred at longitude,latitude = 125.42,25.22 [deg].
COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
- GCN NOTICE
TITLE: GCN/FERMI NOTICE
NOTICE_DATE: Sat 07 Nov 15 20:25:29 UT
NOTICE_TYPE: Fermi-GBM Ground Position
RECORD_NUM: 56
TRIGGER_NUM: 468620696
GRB_RA: 28.710d {+01h 54m 50s} (J2000),
28.954d {+01h 55m 49s} (current),
27.944d {+01h 51m 47s} (1950)
GRB_DEC: +43.620d {+43d 37' 12"} (J2000),
+43.697d {+43d 41' 50"} (current),
+43.375d {+43d 22' 30"} (1950)
GRB_ERROR: 4.44 [deg radius, statistical only]
DATA_SIGNIF: 20.20 [sigma]
DATA_INTERVAL: 2.048 [sec]
GRB_DATE: 17333 TJD; 311 DOY; 15/11/07
GRB_TIME: 73492.30 SOD {20:24:52.30} UT
GRB_PHI: 156.00 [deg]
GRB_THETA: 45.00 [deg]
E_RANGE: 44.032 - 279.965 [keV]
LOC_ALGORITHM: 4153 (Gnd S/W Version number)
SUN_POSTN: 222.64d {+14h 50m 33s} -16.36d {-16d 21' 52"}
SUN_DIST: 150.30 [deg] Sun_angle= -11.1 [hr] (East of Sun)
MOON_POSTN: 182.44d {+12h 09m 46s} -0.91d {-00d 54' 24"}
MOON_DIST: 131.13 [deg]
MOON_ILLUM: 13 [%]
GAL_COORDS: 134.92,-17.77 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 43.07, 29.64 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn151107851/quicklook/glg_lc_medres34_bn151107851.gif
COMMENTS: Fermi-GBM Ground-calculated Coordinates.
COMMENTS: In the LAT Field-of-view.
COMMENTS: This Notice was ground-generated -- not flight-generated.
COMMENTS: The LC_URL file will not be created/available until ~15 min after the trigger.
- GCN NOTICE
TITLE: GCN/FERMI NOTICE
NOTICE_DATE: Sat 07 Nov 15 20:25:35 UT
NOTICE_TYPE: Fermi-GBM Flight Position
RECORD_NUM: 71
TRIGGER_NUM: 468620696
GRB_RA: 10.617d {+00h 42m 28s} (J2000),
10.839d {+00h 43m 21s} (current),
9.920d {+00h 39m 41s} (1950)
GRB_DEC: +48.817d {+48d 49' 00"} (J2000),
+48.903d {+48d 54' 12"} (current),
+48.543d {+48d 32' 34"} (1950)
GRB_ERROR: 4.53 [deg radius, statistical plus systematic]
GRB_INTEN: 785 [cnts/sec]
DATA_SIGNIF: 69.40 [sigma]
INTEG_TIME: 4.096 [sec]
GRB_DATE: 17333 TJD; 311 DOY; 15/11/07
GRB_TIME: 73492.30 SOD {20:24:52.30} UT
GRB_PHI: 137.00 [deg]
GRB_THETA: 45.00 [deg]
DATA_TIME_SCALE: 4.0960 [sec]
HARD_RATIO: 0.34
LOC_ALGORITHM: 3 (version number of)
MOST_LIKELY: 96% GRB
2nd_MOST_LIKELY: 3% Generic Transient
DETECTORS: 0,0,0, 0,0,0, 1,0,0, 1,0,0, 0,0,
SUN_POSTN: 222.64d {+14h 50m 33s} -16.36d {-16d 21' 52"}
SUN_DIST: 138.45 [deg] Sun_angle= -9.9 [hr] (East of Sun)
MOON_POSTN: 182.44d {+12h 09m 46s} -0.91d {-00d 54' 25"}
MOON_DIST: 131.46 [deg]
MOON_ILLUM: 13 [%]
GAL_COORDS: 121.41,-14.03 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS: 32.40, 39.96 [deg] ecliptic lon,lat of the burst (or transient)
LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2015/bn151107851/quicklook/glg_lc_medres34_bn151107851.gif
COMMENTS: Fermi-GBM Flight-calculated Coordinates.
COMMENTS: This trigger occurred at longitude,latitude = 125.42,25.22 [deg].
COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
- GCN Circular #18570
Matthew Stanbro (UAH) and Charles Meegan (UAH)
report on behalf of the Fermi GBM Team:
"At 20:24:52.30 UT on 07 November 2015, the Fermi Gamma-Ray Burst Monitor
triggered and located GRB 151107B (trigger 468620696 / 151107851).
The on-ground calculated location, using the GBM trigger
data, is RA = 31.3, DEC = 45.6, with an uncertainty
of 1.7 degrees (radius, 1-sigma containment,
statistical only; there is additionally a systematic
error which we have characterized as a core-plus-tail model, with 90% of
GRBs having a 3.7 deg error and a small tail suffering a larger than 10 deg
systematic error. [Connaughton et al. 2015, ApJS, 216, 32] ).
The trigger resulted in an Autonomous Repoint Request (ARR)
by the GBM Flight Software owing to the high peak flux
of the GRB. This ARR was accepted and the spacecraft slewed to the GBM in-flight
location. The initial angle from the Fermi LAT boresight to
the GBM ground location is 40 degrees.
The GBM light curve consists of 2 separate episodes
with a duration (T90) of about 139 s (50-300 keV).
The time-averaged spectrum from T0+2 s to T0+137 s is
best fit by a power law function with an exponential
high-energy cutoff. The power law index is -1.20 +/- 0.02 and
the cutoff energy, parameterized as Epeak, is 347 +/- 25 keV
The event fluence (10-1000 keV) in this time interval is
(3.11 +/- 0.07)E-05 erg/cm^2. The 1-sec peak photon flux measured
starting from T0+8.13 s in the 10-1000 keV band
is 10.9 +/- 0.2 ph/s/cm^2.
The spectral analysis results presented above are preliminary;
final results will be published in the GBM GRB Catalog."
- GCN Circular #18574
S.Karpov, G.Beskin (SAO RAS and Kazan Federal University, Russia), S.Bondar,
E.Ivanov, E.Katkova, A.Perkov, N.Orekhova (OJS RPC PSI, Russia), A.Biryukov
(SAI MSU and Kazan Federal University, Russia), V.Sasyuk (Kazan Federal
University, Russia)
The localization of Fermi GBM trigger 468620696 / GRB 151107B (Stanbro et al,
GCN Circ. 18570) has been observed by Mini-MegaTORTORA nine-channel wide-field
monitoring system (located at Special Astrophysical Observatory near Russian
6-m telescope and belonging to Kazan Federal University) before, during and
after the trigger time at 2015-11-07 20:24:52.30 UT. The whole final 1-sigma
localization box (as well as 6 more degrees around it) has been covered since
20:19:23 UT (T-329.3 s) and until 20:25:18 UT (T+25.7 s, thus covering the
brightest part of first gamma-ray peak) with temporal resolution of 0.1 s in
white light. Dedicated real-time transient detection pipeline did not detect
any events longer than 0.3 s and brighter than approximately V=10.5 mag. Visual
inspection of co-added images with 10 s effective exposure (summation of 100
consecutive frames each) has not revealed any variable source down to V=12.0
mag during that interval.
At 20:25:18 UT the system initiated a repointing following the initially
distributed GBM coordinates, and since 20:25:55 UT (T+62.7 s, during the
continuing gamma-ray activity) till 20:35:59 UT (T+666.7 s) acquired 20x9 deep
images with 30 s exposures in white light in a 30x30 degree field of view
centered on RA=24.1 Dec=44.8. The whole final 1-sigma localization was still
inside the field of view. Quick-look analysis of the acquired data has not
revealed any variable object down to roughly V=13.5 mag over that time interval.
The analysis is ongoing.
- GCN Circular #18576
R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres
The Instituto de Astrofisica de Canarias
E. Gorbovskoy, V. Lipunov, V.Shumkov, N.Tyurina, V.Kornilov, P.Balanutsa,
A.Kuznetsov, D. Vlasenko
Lomonosov Moscow State University, Sternberg Astronomical Institute
D.Buckley, S. Potter, A.Kniazev, M.Kotze
South African Astronomical Observatory
A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Senik
Kislovodsk Solar Station of the Pulkovo Observatory
O.Gress, K.Ivanov, N.M.Budnev, V.A.Poleshchuk
Irkutsk State University
V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov
Blagoveschensk Educational State University, Blagoveschensk
V.Krushinski, I.Zalozhnih
Ural Federal University, Kourovka
Hugo Levato and Carlos Saffe
Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE)
Claudio Mallamaci, Carlos Lopez and Federico Podest
Observatorio Astronomico Felix Aguilar (OAFA)
MASTER II robotic telescope (MASTER-Net http://observ.pereplet.ru)
located in IAC (Tenerife, Spain) was pointed to the FERMI GBM GRB151107B
14 sec after notice time and
60 sec after trigger time at 2015-11-07 20:25:52 UT. Our first (10s
exposure) set limit is 16.8 within FERMI
error-box (ra=00 42 28 dec=+48 48 58 r=4.5, Stanbro and Meegan, GCN 18570).
MASTER II robotic telescope located in Kislovodsk was pointed to the
GRB151107B 21 sec after notice time and 66 sec after trigger time at
2015-11-07 20:25:59 UT. Our first (10s exposure) set limit is 18.1
within FERMI error-box . The summary (60sec) unfiltered optical limit is
19.5m.
MASTER II robotic telescope located in SAAO (South Africa, Sutherland)
was pointed to the GRB151107B 20 sec after notice time and 66 sec after
trigger time at 2015-11-07 20:25:58 UT. Our first (10s exposure)
set limit is 15.4.
There are prompt pointing observations because duration of the GRB is ~140
s (Stanbro and Meegan, GCN 18570)
After 5 minutes of alert observations of the center of error box,
telescopes in IAC and Kislovodsk started the inspect survey inside large
Fermi error box (ra=00 42 28 dec=+48 48 58 r=4.533300) obtained by GCN
socket.
As a result, we cover more than 98% of 1 sigma+systematic and 85% of
3-sigma + systematic of the FERMI GBM final error box (Stanbro et. al.
GCN 18570) with upper limit up to 19 mag during this night.
The coverage map is available here:
http://master.sai.msu.ru/static/GRB/GRB151107B.png
There is 1 possible OTs was found up to now -
MASTER OT J015539.85+485955.6 published yesterday
(Shumkov et al., Atel #8262).
(RA, Dec) = 01h 55m 39.85s +48d 59m 55.6s
The OT mag is 15.2 on 2015-11-07.99775 UT. The
specrtrum was done by follow up Liverpool Telescope
(La Palma) observations shows a broad continuum, consistent with
that expected from a dwarf nova in outburst ( Piascik & Steele, ATel #8265).
The brightness is not sufficiantly changed after half of the day (during
independently ASAS detection Holoin et al., ATEL #8260) and our today
imaging (2015-11-10 17:16:26.513UT, m_OT=15.5+-0.1) shows that OT doesn't
fade essntially with respect to discovery magnitude contraverse to GRB
optical afterglow .
The search is continuing.
The message may be cited.
- GCN Circular #18577
K. Hurley, on behalf of the IPN,
S. Golenetskii, R. Aptekar, V. Pal'shin, D. Frederiks,
D. Svinkin, and T. Cline, on behalf of the Konus-Wind team,
I. G. Mitrofanov, D. Golovin, M. L. Litvak, and A. B. Sanin,
on behalf of the HEND-Odyssey GRB team,
W. Boynton, C. Fellows, K. Harshman, H. Enos, and R. Starr, on
behalf of the GRS-Odyssey GRB team,
report:
GRB 151107B (Stanbro and Meegan, GCN 18570) was also observed by Konus-Wind
and Mars Odyssey-HEND. We have triangulated it to a preliminary annulus centered
at RA, Dec(2000) = 357.447, -2.630, whose radius is 55.156 +/- 0.054 degrees
(3 sigma). The minimum distance between the center line of this annulus
and the MASTER-NET optical transient (Lipunov et al., GCN 18576) is 3.22
degrees, supporting the conclusion that the OT and the GRB are indeed unrelated.
A map has been posted at
ssl.berkeley.edu/ipn3/151107B.
- GCN Circular #18605
A. Yoshida, T. Sakamoto, I. Takahashi, Y. Kawakubo, K. Senuma,
M. Moriyama, Y. Yamada (AGU), K. Yamaoka (Nagoya U), S. Nakahira (JAXA),
Y. Asaoka, S. Ozawa, S. Torii (Waseda U), Y. Shimizu, T. Tamura (Kanagawa U),
M. L. Cherry (LSU), S. Ricciarini (U of Florence), P. S. Marrocchesi (U of Siena)
and the CALET collaboration:
The long-duration GRB 151107B (Stanbro et al. GCN Circ. 18570) triggered the CALET
Gamma-Ray Burst Monitor (CGBM) at 20:24:54.77 UT on 7 November 2015. The burst
was detected by all three CGBM instruments. Based on the signal-to-noise among the
instruments, the incident angle of the burst was estimated as ~40-70 deg from the zenith
direction of CGBM. This estimated incident angle is roughly consistent with the IPN
triangulation (Hurley et al., GCN Circ. 18577).
The light curve of the Soft Gamma-ray Monitor (SGM; 30 keV - 20 MeV) shows the main
peak starting from T0-5 sec, peaking at T0+5 sec and ending at T0+~30 sec. The
second weak peak starts from T0+90 sec, peaks at T0+95 sec and ends at T0+100 sec.
The T90 duration measured by the SGM data is 95.0 +- 1.4 s (40-920 keV).
Currently, CALET is in the commissioning phase. Further information about CALET and
CGBM can be found at http://calet.jp/en/ and http://www.en.yoshida-agu.net/research/calet-gbm
Previous IAU Circulars 