Gamma-ray Burst 041016

(All information courtesy of the instrument teams.)

Previous IAU Circulars

none

Results of Observations

GCN/BACODINE POSITION NOTICE

TITLE:          GCN/HETE BURST POSITION NOTICE 
NOTICE_DATE:    Sat 16 Oct 04 04:39:43 UT 
NOTICE_TYPE:    HETE S/C_Alert 
TRIGGER_NUM:    3578,   Seq_Num: 1
GRB_DATE:       13294 TJD;   290 DOY;   04/10/16 
GRB_TIME:       16778.54 SOD {04:39:38.54} UT
TRIGGER_SOURCE: Trigger on the 25-400 keV band.
GAMMA_RATE:     190  [cnts/s]  on a 1.300 [sec] timescale
SC_LONG:        218 [deg East] 
SUN_POSTN:      201.43d {+13h 25m 43s}   -9.00d {-09d 00' 01"}
MOON_POSTN:     227.33d {+15h 09m 19s}  -19.27d {-19d 16' 20"}
MOON_ILLUM:     6 [%] 
COMMENTS:       No s/c ACS pointing info available yet.
COMMENTS:       Probable GRB.

GCN/BACODINE POSITION NOTICE

 
TITLE:          GCN/HETE BURST POSITION NOTICE 
NOTICE_DATE:    Sat 16 Oct 04 06:52:45 UT 
NOTICE_TYPE:    HETE Ground Analysis
TRIGGER_NUM:    3578,   Seq_Num: 3
GRB_DATE:       13294 TJD;   290 DOY;   04/10/16 
GRB_TIME:       16778.54 SOD {04:39:38.54} UT
TRIGGER_SOURCE: Trigger on the 25-400 keV band.
GAMMA_RATE:     190  [cnts/s]  on a 1.300 [sec] timescale
SC_-Z_RA:         0 [deg]
SC_-Z_DEC:        0 [deg]
SC_LONG:        218 [deg East] 
WXM_CNTR_RA:     26.182d {+01h 44m 44s} (J2000),     
                 26.242d {+01h 44m 58s} (current),
                 25.551d {+01h 42m 12s} (1950)    
WXM_CNTR_DEC:    -4.402d {-04d 24' 06"} (J2000),
                 -4.378d {-04d 22' 40"} (current),
                 -4.653d {-04d 39' 08"} (1950)
WXM_MAX_SIZE:   28.00 [arcmin] diameter
WXM_LOC_SN:     10 sig/noise (pt src in image)
WXM_IMAGE_SN:   X= 4.9 Y= 6.5 [sig/noise]
WXM_LC_SN:      X= 5.5 Y= 8.6 [sig/noise]      
SUN_POSTN:      201.43d {+13h 25m 43s}   -9.00d {-09d 00' 01"}
SUN_DIST:       165.79 [deg]
MOON_POSTN:     227.33d {+15h 09m 19s}  -19.27d {-19d 16' 20"}
MOON_DIST:      148.54 [deg] 
MOON_ILLUM:     6 [%]
GAL_COORDS:     154.49,-63.96 [deg] galactic lon,lat of the burst
ECL_COORDS:     22.64,-14.21 [deg] ecliptic lon,lat of the burst
COMMENTS:       Definite GRB.
COMMENTS:       WXM error box is circular; not rectangular.
COMMENTS:       Burst_Validity flag is true.
COMMENTS:       WXM data refined since S/C_Last Notice.

red DSS finding chart ps-file
GCN notice #2813
K. Torii (Osaka University) reports:
A part of the error region of GRB 041016 (HETE trigger 3578) was observed with a remote telescope (0.30-m Cassegrain equipped with FLI-IMG1024S CCD camera and clear filter) in the New Mexico Skies observatory. The observation started at 2004 October 16, 07:14 UT and 300-s integration was repeated. The observed field was 24x24 arcminutes centered at (R.A., Dec.) = (01 44 53, -04 17 14) (J2000).
Preliminary comparison of the first 5 frames with the USNO-A2.0(R) catalog does not show a new object brighter than ~16 mag.
GCN notice #2816
S.Bodrov, A.Sankovich, V. Lipunov, A.Krylov, V.Kornilov, G.Borisov, D.Kuvshinov, A.Belinski, M.Kuznetsov, S.Potanin, G.Antipov, E.Gorbovskoy, N.Tyurina Sternberg Astronomical Institute, Alexandr Krylov Observatory, Moscow
At 12h 22m after HETE GRB trigger time (alert 2019) MASTER robotic telescope (http://observ.pereplet.ru) had imaging the corresponding area of the sky under the good weather conditions. The first image was started at 17h02m UT. We did not find new stars up to 17m.
We have 20 unfiltered images of the error box (45s exposition, 2.4 x 2.4 degrees, 355 mm telescope, Alta U16 CCD camera).
Sum FITS image are available at
http://observ.pereplet.ru/images/GRB041016/
This message may be cited.
GCN notice #2817
J. Wren, W.T. Vestrand, P. Wozniak, R. White, report on behalf of the RAPTOR team.
Stereoscopic observations collected by the RAPTOR wide-field sky monitoring systems allow us to place optical limits on a prompt optical flash from GRB 041016 (HETE trigger 3578). The earliest images were 10 second exposures obtained starting at 04:40:13.3 UT (35 seconds after the GRB trigger) with a limiting magnitude of R ~ 13.1 mag. When compared to our later follow-up images and sky patrol images taken earlier in the evening, no new or variable objects were detected (other than known asteroids). Straightforward extrapolation of the light curve for prompt optical emission measured from GRB 021211, an event with approximately half the 25-300 keV fluence of GRB 041016, predicts an optical flux that exceeds these early flux limits.
GCN notice #2818
D. Kuroda (Sokendai), K. Yanagisawa (OAO-NAOJ), and N. Kawai (Tokyo Tech) report on behalf of a larger collaboration:
The entire error circle of GRB 041016 (=H3578) was observed with the Tokyo Tech-OAO 50cm telescope equipped with the tricolor camera. 100 frames of 30 s exposure were taken simultaneously in V, R, and I bands from 13:25 to 14:18 UT. Visual comparison of the stacked image with USNO-A2.0 (R) catalog reveals no new source with following upper limits:
```
  V: 17.4
  R: 18.5
  I: 18.0.
```
GCN notice #2819
K. Torii and Yuuichi Fukazawa (Osaka University) report:
We have further analyzed the data reported in GCN #2813 and derived the following limits on the optical afterglow of GRB 041016 (HETE Trigger #3578). We made two pointings and obtained 12 x 300-s frames for each pointing. The 12 frames from each pointing was stacked to yield a single frame and compared with the USNO-A2.0 (R) catalog. We found no new source brighter than the limiting magnitude of each frame as given below.
The first pointing (07:14 UT - 08:26 UT) was 24x24 arcmin field centered at (RA, Dec.) = (01 44 53, -04 17 12) (J2000). The limiting magnitude of the stacked frame was 18.4.
The second pointing (08:36 UT - 09:48 UT) was 24x24 arcmin field centered at (RA, Dec.) = (01 44 48, -04 24 21) (J2000). The limiting magnitude of the stacked frame was 18.7.
Starting at 11:54 UT on 2004 October 16, a part of the GRB 041016 error region was also observed at Osaka University with the 14-inch telescope and unfiltered CCD. We stacked the first 60 frames of 60-s exposure and compared it with the USNO-A2.0 (R) catalog. No new source brighter than 18.2 mag was found in the 25x25 arcmin field centered at (RA, Dec.) = (01 44 39, -04 12 13) (J2000).
GCN notice #2820
E.Sonoda,S.Maeno,Y.Matsuo,M.Yamauchi (University of Miyazaki)
"We have observed the field covering the error box of GRB041016 (HETE trigger 3578) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki.The ovservation was started 12:34:30 (UT) on Oct.16.Observed field of view is 43 arcmin centered on
R.A.=01h 45m 24.12s Dec.=-04d 39' 29.3".
After co-adding a set of 8 images of 30 sec exposures,we have compared our images with the USNO A2.0 catalog.Preliminary analysis shows there is no new source brighter than 18.1mag. in the WXM error box reported by HETE ."
GCN notice #2822
M. Jel=EDnek, A. J. Castro-Tirado, A. de Ugarte Postigo, (IAA-CSIC Granada), S. Vitek (Czech Technical University,=20 Prague), P. Kubanek (Astronomical Institute of the Academy=20 of Sciences, Ondrejov), T. J. Mateo Sanguino (University of=20 Huelva),T. Soria (EELM-CSIC, M=E1laga) and J. Fabregat (University of Valencia)
report:
The BOOTES-2 very wide field camera located at the Estaci=F3n Experimental de La Mayora (EELM-CSIC) in M=E1laga observed=20 the region of the sky containing the WXM error box for GRB=20 041016 (HETE trigger 3578) as part of the routinary observing=20 schedule. The field was not observed at optimum conditions (air airmass, cirruses). A 30s exposure started at 4:40:00=20 UT (20.5s after beginning of the 33s long burst), i.e. covering=20 the last 12.5s of the burst's gamma ray activity. This image,=20 sets a R =3D 7.0 upper limit to the promt optical flash for GRB 041016.
This message can be quoted.
http://arxiv.org/abs/astro-ph/0702708 reports afterglow detection in Fig. 3. Unfortunately, no coordinates given, and no mentioning of fading.
Priv. comm. by Taro Kotani (Jun 2010): was a typo. The detection refers to GRB 041006.

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Jochen Greiner, last update: 23-Jun-2010 [Disclaimer]