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GRB 000126
TITLE:
GCN GRB OBSERVATION REPORT
NUMBER: 533
SUBJECT: GRB000126 Optical Observations
DATE: 00/02/05 12:39:13 GMT
FROM: Kjetil Kjernsmo at U. of Oslo <kjetil.kjernsmo@astro.uio.no> K. Kjernsmo, A. Jaunsen and OE. Saanum
(U. of Oslo) B. L. Jensen, J. Hjorth, H. Pedersen (U. of
Copenhagen) J. Gorosabel (DSRI, Copenhagen) report:
"We have obtained a 300s R-band image of the central third
of the IPN/BATSE errorbox of GRB 000126 (Hurley et al. GCN #525,
Kippen GCN #526) on 2000 Jan 28.14 UT with the 2.5m Nordic
Optical Telescope. >From comparison with DSS-I, we found no
obvious optical GRB counterparts in this part of the errorbox
down to the limit of DSS (R~19.5). The NOT image has a seeing of
1.9" and a limiting magnitude of 22.2 (4 sigma)."
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TITLE: GCN GRB
OBSERVATION REPORT
NUMBER: 528
SUBJECT: GRB 000126, optical observations
DATE: 00/02/01 20:35:24 GMT
FROM: Alberto Castro-Tirado at Inst.de Astro.
de Andalucia <ajct@iaa.es>
GRB 000126, optical observations
--------------------------------------
Alberto Castro-Tirado, LAEFF-INTA (Madrid) and IAA-CSIC (Granada)
Rene Hudec and Jan Soldan, ASU (Ondrejov) Petr Pata and Martin
Bernas, CVUT-FEL (Prague) Jose Maria Castro-Ceron, ROA (San
Fernando) Javier Gorosabel, LAEFF-INTA (Madrid) and DSRI
(Copenhagen) on behalf of the BOOTES-1 Collaboration and Kevin
Hurley, SSL (Berkeley) report:
"We have obtained several images of the IPN error box for
GRB 000126 (Hurley et al. GCN 525, Kippen et al. GCN 526) with
the wide-field CCD of BOOTES-1 on Jan 27.89 UT (22-h after the
GRB, 5-min exposure time) and with the narrow-field CCD attached
to the 0.3-m telescope on Jan 28.89 UT (46-h after the event,
10-min exposure time). Limiting magnitudes of the unfiltered
images are about 11 and 19 respectively. None of them
reveals any new (or strongly variable source) when comparing with
the Digital Sky Survey, in agreement with the results obtained by
Axelrod et al. (GCN 527). The two images are posted at http://www.laeff.esa.es/~ajct/GRBs/GRB000126 ."
This message is quotable.
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TITLE: GCN GRB
OBSERVATION REPORT
NUMBER: 527
SUBJECT: GRB000126, optical observations
DATE: 00/02/01 01:24:39 GMT
FROM: Alan H. Diercks at Caltech <ad@astro.caltech.edu> T.S. Axelrod, B.P. Schmidt (Mt.
Stromlo Observatory), J.S. Bloom, A. Diercks, and T.J. Galama
(Caltech) report on behalf of the REACT GRB follow-up network:
We have observed the error region of GRB000126, detected by the
IPN (Hurley et al, GCN #525) and refined by BATSE (Kippen, GCN
#526) with the Mt. Stromlo Observatory 50-inch telescope + MACHO
camera system Jan 29 and Jan 30 UT, 60 and 80 hours after the
event respectively.
Two sets of 3x300s exposures were taken with mean epochs of
observation of Jan 29.476 UT and Jan 30.540 UT. Comparison
of the MACHO_Red images (~ Cousins R-band) via difference imaging
reveals that no objects with 19.3 > R > 13.0 varied by more
than the flux equivalent point-source of R = 19.0 between the two
epochs. Unfortunately, the detection limit in each epoch varied
from R ~ 19.3 - 20.0 due to cloudy conditions.
This message may be cited.
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TITLE: GCN GRB
OBSERVATION REPORT
NUMBER: 526
SUBJECT: BATSE location of GRB000126
DATE: 00/01/28 16:23:37 GMT
FROM: R. Marc Kippen at BATSE/UAH/MSFC
<marc.kippen@msfc.nasa.gov> R. M. Kippen (UAH/MSFC) reports on
behalf of the BATSE GRB Team:
GRB000126 was detected by BATSE as trigger #7971 at 84389.625 s
UT on 2000 January 26. BACODINE/GCN locations were not
issued because the trigger began in a real-time telemetry
gap. The burst emission consists of several pulses lasting
more than 70 s. The preliminary BATSE location is (R.A.,
Dec. J2000) = (116.7, 6.9 deg), with a total
(statistical+systematic) error radius of 2.4 deg (68%
Conf.). This location rules out one of the two possible IPN
error boxes (GCN 525), which means that the most probable IPN
error-box is:
RA(2000)
DEC(2000)
7 h 45 m 40.70 s 7 o 53
' 53.12 "
7 h 44 m 42.48 s 7 o 43
' 2.86 "
7 h 45 m 16.97 s 7 o 45
' 38.87 "
7 h 44 m 18.05 s 7 o 34
' 38.23 "
This box is within about 0.8 deg of the independent BATSE
location.
-eof-
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TITLE: GCN GRB
OBSERVATION REPORT
NUMBER: 525
SUBJECT: IPN localization of GRB000126
DATE: 00/01/28 01:09:27 GMT
FROM: Kevin Hurley at UCBerkeley/SSL <khurley@sunspot.ssl.berkeley.edu> K. Hurley, on behalf of the Ulysses
GRB team, and T. Cline and E. Mazets, on behalf of the Konus-Wind
and NEAR GRB teams, report:
Ulysses, Konus, and NEAR detected a ~100 s long GRB, whose 25-100
keV fluence was ~10^-5 erg/cm^2, at 84402 s UT on January 26,
2000. The burst can only be localized at present to two
alternate error boxes, each ~55 sq. arcmin. in area, whose
corners are at:
RA(2000)
DEC(2000)
6 h 35 m 44.61 s -8 o 43 '
10.60 "
6 h 36 m 31.96 s -8 o 29 '
26.94 "
6 h 36 m 19.35 s -8 o 37 '
49.17 "
6 h 37 m 7.39 s -8 o 23
' 55.09 "
OR
RA(2000)
DEC(2000)
7 h 45 m 40.70 s 7 o 53
' 53.12 "
7 h 44 m 42.48 s 7 o 43
' 2.86 "
7 h 45 m 16.97 s 7 o 45
' 38.87 "
7 h 44 m 18.05 s 7 o 34
' 38.23 "
These error boxes can be refined, and there is a slight
possibility that further analysis will make it possible to
eliminate one of them.
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