The optically dim GRB 030115

Optical follow-up observations at OSN and BOOTES

photo

The reddened object close to the GRB 030115 error box (GCN Circ. 1805) and unrelated to the GRB (GCN Circ. 1807), based on the 300-s R-band image obtained at the 1.5-m telescope at Observatorio de Sierra Nevada in Granada. The field of view is 7' x 7'. North is up and east to the left. No counterpart within the HETE-2 error box is seen down to R = 20 in the co-added image.
 
 
 

                                     

                                                     

TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 1805
SUBJECT: GRB 030115, optical candidate
DATE: 03/01/15 06:01:20 GMT
FROM: Alberto Castro-Tirado at Inst. de Astrofísica de Andalucía

GRB 030115, optical candidate
--------------------------------------
Alberto Castro-Tirado, J. Gorosabel, V. Casanova
and Enrique García-Lobo, IAA-CSIC (Granada)
José María Castro Cerón, ROA (San Fernando)
and A. de Ugarte (Oss. Astron. di Brera)
report:
"Following the detection of GRB 030115 by HETE, we have obtained BVRI images at the 1.5-m telescope at IAA's Observatorio de Sierra Nevada in Granada, starting on Jan 15.220 UT. An optical source with R about 18 which is not in the DDS-2 (R) is seen at coordinates AR (2000) = 11 18 23.8 Dec (2000) = + 15 05 10 (preliminary). Further observations are urged in order to confirm whether this is the optical counterpart of GRB 030115."




TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 1807
SUBJECT: GRB 030115, no optical candidate
DATE: 03/01/15 08:28:03 GMT
FROM: Alberto Castro-Tirado at Inst. de Astrofísica de Andalucía

GRB 030115, no optical candidate
--------------------------------------
Alberto Castro-Tirado, J. Gorosabel, V. Casanova
and Enrique García-Lobo, IAA-CSIC (Granada)
José María Castro Cerón, ROA (San Fernando)
A. de Ugarte (Oss. Astron. di Brera)
J. Fynbo (Univ. of Aarhus)
and E. Rol (Univ. of Amsterdam)
report:
"Further analysis of the 1.5-m OSN B-band images obtained covering the GRB 030115 error box, suggests that the optical candidate previously reported (GCN Circ. 1805) seems to be a reddened object that is also present in the DDS-2 (R and B). Taking into account that there is no other obvious optical counterpart within the HETE-2 error box down to R about 20 on Jan 15.220 UT (i.e 1h 55m after the trigger), this GRB would be a good candidate for an optically dim/dark burst. Deeper optical and IR observations are encouraged."




TITLE: GCN GRB OBSERVATION REPORT
NUMBER: 1826
SUBJECT: GRB 030115, simultaneous observations by BOOTES-1
DATE: 03/01/17 14:00:03 GMT
FROM: Alberto Castro-Tirado at Inst. de Astrofísica de Andalucía

GRB 030115, simultaneous observatios by BOOTES-1
-------------------------------------------------
Alberto Castro-Tirado (IAA-CSIC Granada and LAEFF-INTA, Madrid)
T. J. Mateo Sanguino (CEDEA-INTA, Huelva)
, A. de Ugarte Postigo (Oss. Astron. di Brera)
, M. Jélinek, P. Kubánek, R. Hudec (ASU-CAS, Ondrejov)
, S. Vitek, P. Páta (FEL-CVUT)
and J. Á. Berná (Univ. de Alicante)
on behalf of the BOOTES team,
report:
"We have obtained several unfiltred exposures (45-s each) under good metereological conditions covering the 20-s long GRB 030115 HETE-2 error box (Kawai et al. GCN 1816). The images covered the period 03:22:35 - 03:24:52 UT 15 Jan 2003 (i.e. between 1 and 138-s after the trigger) with the very wide-field camera of BOOTES-1 (http://www.laeff.esa.es/BOOTES). After a visual inspection of the HETE-2 error box in the frames, we do not find evidence of optical emission, in particular simultaneously to the burst itself, for which we have an image covering the time interval 03:22:35-03:23:20 UT. Therefore we derive an upper limit of R = 10 for any optical emission simultaneous to this long/soft GRB."