- GCN/BACODINE POSITION NOTICE
TITLE: GCN/INTEGRAL NOTICE
NOTICE_DATE: Thu 14 Jul 05 00:06:24 UT
NOTICE_TYPE: INTEGRAL Wakeup
TRIGGER_NUM: 2598, Sub_Num: 0
GRB_RA: 43.5802d {+02h 54m 19s} (J2000),
43.7068d {+02h 54m 50s} (current),
42.4444d {+02h 49m 47s} (1950)
GRB_DEC: +69.1231d {+69d 07' 23"} (J2000),
+69.1454d {+69d 08' 43"} (current),
+68.9195d {+68d 55' 10"} (1950)
GRB_ERROR: 3.28 [arcmin, radius, statistical only]
GRB_INTEN: 8.10 [sigma]
GRB_TIME: 365.19 SOD {00:06:05.19} UT
GRB_DATE: 13565 TJD; 195 DOY; 05/07/14
SC_RA: 36.22 [deg] (J2000)
SC_DEC: 64.90 [deg] (J2000)
SUN_POSTN: 113.42d {+07h 33m 40s} +21.69d {+21d 41' 36"}
SUN_DIST: 62.60 [deg]
MOON_POSTN: 193.17d {+12h 52m 40s} -5.39d {-05d 23' 29"}
MOON_DIST: 113.14 [deg]
GAL_COORDS: 133.55, 8.82 [deg] galactic lon,lat of the burst
ECL_COORDS: 66.62, 49.42 [deg] ecliptic lon,lat of the burst
COMMENTS: INTEGRAL GRB Coordinates.
COMMENTS: Possibly real GRB event
- GCN/BACODINE POSITION NOTICE
TITLE: GCN/INTEGRAL NOTICE
NOTICE_DATE: Thu 14 Jul 05 00:09:26 UT
NOTICE_TYPE: INTEGRAL Refined
TRIGGER_NUM: 2598, Sub_Num: 1
GRB_RA: 43.6327d {+02h 54m 32s} (J2000),
43.7593d {+02h 55m 02s} (current),
42.4969d {+02h 49m 59s} (1950)
GRB_DEC: +69.1027d {+69d 06' 10"} (J2000),
+69.1250d {+69d 07' 30"} (current),
+68.8993d {+68d 53' 58"} (1950)
GRB_ERROR: 2.88 [arcmin, radius, statistical only]
GRB_INTEN: 11.92 [sigma]
GRB_TIME: 402.19 SOD {00:06:42.19} UT
GRB_DATE: 13565 TJD; 195 DOY; 05/07/14
SC_RA: 36.22 [deg] (J2000)
SC_DEC: 64.90 [deg] (J2000)
SUN_POSTN: 113.42d {+07h 33m 40s} +21.69d {+21d 41' 36"}
SUN_DIST: 62.58 [deg]
MOON_POSTN: 193.17d {+12h 52m 41s} -5.39d {-05d 23' 38"}
MOON_DIST: 113.16 [deg]
GAL_COORDS: 133.57, 8.81 [deg] galactic lon,lat of the burst
ECL_COORDS: 66.63, 49.40 [deg] ecliptic lon,lat of the burst
COMMENTS: INTEGRAL GRB Coordinates.
COMMENTS: Possibly real GRB event
- GCN/BACODINE POSITION NOTICE
TITLE: GCN/INTEGRAL NOTICE
NOTICE_DATE: Thu 14 Jul 05 00:52:35 UT
NOTICE_TYPE: INTEGRAL Offline
TRIGGER_NUM: 2598, Sub_Num: 2
GRB_RA: 43.5862d {+02h 54m 21s} (J2000),
43.7129d {+02h 54m 51s} (current),
42.4503d {+02h 49m 48s} (1950)
GRB_DEC: +69.1260d {+69d 07' 34"} (J2000),
+69.1483d {+69d 08' 54"} (current),
+68.9224d {+68d 55' 21"} (1950)
GRB_ERROR: 2.00 [arcmin, radius, statistical only]
GRB_INTEN: 8.10 [sigma]
GRB_TIME: 365.19 SOD {00:06:05.19} UT
GRB_DATE: 13565 TJD; 195 DOY; 05/07/14
SC_RA: 36.22 [deg] (J2000)
SC_DEC: 64.90 [deg] (J2000)
SUN_POSTN: 113.42d {+07h 33m 40s} +21.69d {+21d 41' 36"}
SUN_DIST: 62.60 [deg]
MOON_POSTN: 193.17d {+12h 52m 40s} -5.39d {-05d 23' 29"}
MOON_DIST: 113.14 [deg]
GAL_COORDS: 133.55, 8.83 [deg] galactic lon,lat of the burst
ECL_COORDS: 66.62, 49.42 [deg] ecliptic lon,lat of the burst
COMMENTS: INTEGRAL GRB Coordinates.
COMMENTS: REFINED_COORDINATES_AFTER_OFFLINE_ANALYSIS
- red DSS finding chart
ps-file
- GCN notice #3607
D. Gotz, S. Mereghetti (IASF, Milano), S. Shaw, N. Mowlavi, M. Beck, S.
Soldi (ISDC, Versoix) and J. Borkowski (CAMK, Torun) on behalf of the IBAS
Localization Team report:
A 40 s long GRB has been detected by IBAS in IBIS/ISGRI data at 00:05:56
on July 14 2005.
Its refined coordinates (J2000) are:
RA: 43.5863 [degrees]
DEC: +69.1261 [degrees]
with an uncertainty of 2.0 arcmin (90% c.l. radius).
Its preliminary peak flux (20-200 keV, 1s integration time) is about 0.3
ph (2.6E-08 erg)/cmsq/s. Its fluence (20-200 keV, 40 s integration time)
is 6.16E-07 erg/cmsq.
A plot of the light curve will be posted at
http://ibas.mi.iasf.cnr.it/IBAS_Results.html
This message can be cited.
- GCN notice #3608
B. Schaefer (Louisiana State), S.A. Yost (U Mich), H. Swan (U Mich), E.S.
Rykoff (U Mich), report on behalf of the ROTSE collaboration:
ROTSE-IIId, located at the Turkish National Observatory at Bakirlitepe,
Turkey, responded to GRB 050714A (Integral trigger 2598), producing images
beginning 9.1 s after the GCN notice time. An automated response took the
first image at 00:06:33.1 UT, 27.9 s after the burst, under excellent
conditions. We took 10 5-sec, 10 20-sec and 60 60-sec eposures. These
unfiltered images are calibrated relative to USNO A2.0 (R).
Comparison to the DSS (second epoch) reveals no new sources within the
3-sigma error circle, for both single images and coadding into sets of 10.
Individual images have limiting magnitudes ranging from 16.5-17.9; we set
the following specific limits.
start UT end UT t_exp(s) mlim t_start-tGRB(s) Coadd?
--------------------------------------------------------------------
00:06:33.1 0:06:38.1 5 16.6 27.9 N
00:06:33.1 0:08:55.1 142 18.2 27.9 Y
- GCN notice #3609
S. Klose, B. Stecklum, B. Fuhrmann, F. Ludwig,
Thueringer Landessternwarte Tautenburg, and
J. Greiner, MPE Garching,
report:
The field of GRB 050714 was observed with the Tautenburg Schmidt
telescope using for the first time the semi-robotic mode. In this mode
the telescope software is watching for a special SMS message created
in Garching which is extracted from the BACODINE notifications. As a
result, if a burst happens the coordinates of the GRB error box are
automatically uploaded into the current target data file, and the
telescope software is waiting for an OK to be given by the telescope
operator. In this respect human intervention is mandatory, so that this
mode is not fully robotic (which is indeed not forseen because of
security reasons).
Observations of GRB 050714 started at 0:24 UT on July 14, i.e. 18 min
after the onset of the burst (Gotz et al. 2005, GCN 3607). A sequence of
several I, R, and V-band images was taken starting with the I-band
(several 2 min exposures). Observations continued until 1:50 UT (twilight).
A first inspection of the combined images shows no new bright source
in the GRB error circle (90% c.l.; Gotz et al. 2005). However, we
detect two potentially variable objects. Source #1, at RA, DEC (J2000)
02:54:47.05, 69:08:04.2, is listed in the USNO-B catalogue. It is
relatively bright on our combined I-band image (we estimate I~17), and
also visible on our combined R-band image, but has no obvious
counterpart on the DSS2 red image. This object lies slightly outside
the 2' error circle. Source #2, at RA, DEC (J2000) 02:54:19.46,
69:08:59.7, has a faint DSS2-red counterpart but is notably brighter
on our R-band images than on the DSS2 red. This source lies inside the
GRB error circle.
Because of the telescope schedule in Tautenburg, no 2nd epoch observations
can be performed by the end of July.
- GCN notice #3610
J.L. Racusin, J.A. Kennea, D.N. Burrows (PSU), T. Roberts, K. Page (U.
Leicester), N. Gehrels (NASA/GSFC), on behalf of the Swift XRT team:
INTEGRAL detected GRB050714 at 00:05:56 UT on July 14th 2005 (GCN Circ
3607). The Swift observatory executed a Target of Opportunity observation
of the INTEGRAL position and the XRT began taking data at 13:46:16 UT,
13.7 hours after the burst. In preliminary ground processing of the data,
we detect an uncatalogued apparently fading X-ray source located at:
RA(J2000) = 02 54 21.9,
Dec(J2000) = +69 06 43
We estimate an uncertainty of 9 arcseconds radius (90% containment).
This position is 52 arcseconds from the INTEGRAL position reported in GCN
3607.
- GCN notice #3611
S. Klose, B. Stecklum, Thueringer Landessternwarte Tautenburg, and
J. Greiner, MPE Garching,
report:
The Tautenburg R-band image of the field of GRB 050714 (Klose et al.,
GCN 3609) shows a faint source in the revised 9 arcsec GRB error
circle (Racusin et al. 2005, GCN 3610) at RA, DEC (J2000) =
2:54:21.68, 69:06:40.3, for which we estimate R~21. This source is
not visible on the I-band image, implying I>~20. No accurate
photometry has been performed so far.
- GCN notice #3649
T.P. Roberts, K. Page, A. Beardmore (U. Leicester), J.L. Racusin,
J.A. Kennea (PSU), N. White (GSFC), D. Hinshaw (GSFC-SPSYS) report on
behalf of the Swift XRT team:
We have re-analysed the complete Swift dataset from the TOO
observation of the INTEGRAL-detected GRB050714a (see GCN circ. 3610),
beginning 13.7 hours after the burst. The new refined coordinates of
the afterglow candidate are:
RA(J2000) = 02 54 22.2
Dec(J2000) = +69 06 46
We estimate an uncertainty of 6.9 arcseconds on this position (90%
containment). However, we were unable establish from this data whether
the source was definitely fading due its low count rate.
Swift began a second observation of this GRB at 00:05 UT on 19th July
2005 (5.0 days since the burst event). In 9.7 ks of data we do not
detect the candidate afterglow. Hence we confirm that the behaviour
of the X-ray source identified in our first circular is consistent
with it being the afterglow of GRB 050714a.
- GCN notice #3789
C. Rodgers, E. Hausel, D. Allen and R. Canterna report on behalf of
the Red Buttes Observatory GRB Team as
part of the FUN GRB Collaboration. We responded to GRB 050714A (GCN 3607) at
05:11:41 UT with a series of 10 minute R and I exposures centered on
the positon of the original
Integral GRB Position under excellent conditions. No new source was
detected after comparison with DSS.
UT Time Since Filter Limiting
Start GRB Magnitude
05:11 5:06 I 17.4
05:33 5:28 R 18.4
05:43 5:38 R 18.4
We also responded to GRB 050716 (GCN 3623) at 2005-07-17 05:52:03 UT.
We took a series of 5 and 10 minute
exposures in R and I with limiting magnitues of 18.6 in R and 17.4 in
I. These observations were started 17
hours after the BAT trigger. No new source was
detected after comparison with DSS.
10 sigma limiting magnitudes were derived from the USNO-B1.0 catalogue
Previous IAU Circulars 