2002A&A...393..445C

Query : 2002A&A...393..445C

2002A&A...393..445C - Astronomy and Astrophysics, volume 393, 445-451 (2002/10-2)

The bright optical afterglow of the long GRB 001007.

CASTRO CERON J.M., CASTRO-TIRADO A.J., GOROSABEL J., HJORTH J., FYNBO J.U., JENSEN B.L., PEDERSEN H., ANDERSEN M.I., LOPEZ-CORREDOIRA M., SUAREZ O., GROSDIDIER Y., CASARES J., PEREZ-RAMIREZ D., MILVANG-JENSEN B., MALLEN-ORNELAS G., FRUCHTER A., GREINER J., PIAN E., VREESWIJK P.M., BARTHELMY S.D., CLINE T., FRONTERA F., KAPER L., KLOSE S., KOUVELIOTOU C., HARTMANN D.H., HURLEY K., MASETTI N., MAZETS E., PALAZZI E., PARK H.S., ROL E., SALAMANCA I., TANVIR N., TROMBKA J.I., WIJERS R.A.M.J., WILLIAMS G.G. and VAN DEN HEUVEL E.

Abstract (from CDS):

We present optical follow up observations of the long GRB 001007 between 6.14 hours and ∼468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep power law decay with index α=-2.03±0.11, possibly indicating a break in the light curve at t-t0<3.5days, as found in other bursts. Upper limits imposed by the LOTIS alerting system 6.14 hours after the gamma ray event provide tentative (1.2σ) evidence for a break in the optical light curve. The spectral index β of the OA yields -1.24±0.57. These values may be explained both by several fireball jet models and by the cannonball model. Fireball spherical expansion models are not favoured. Late epoch deep imaging revealed the presence of a complex host galaxy system, composed of at least two objects located 1.2" (1.7σ) and 1.9" (2.7σ) from the afterglow position.

Abstract Copyright: ∼

Journal keyword(s): gamma rays: bursts - techniques: photometric - cosmology: observations

Simbad objects: 5

goto Full paper

goto View the references in ADS

Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* T Phe Mi* 00 30 26.2337742744 -46 24 33.379722396   12.46 11.43 12.43   M7e 72 0
2 GRB 001007 gB 04 05 54.3 -21 53 46           ~ 19 0
3 RL 149 HS* 07 24 14.3741784768 -00 33 04.165016904 12.958 13.737 13.866 13.906 13.974 sdB 112 0
4 GRB 990510 gB 13 38 07.64 -80 29 48.8           ~ 488 1
5 GRB 980519 gB 23 22 21.5 +77 15 43           ~ 200 0

To bookmark this query, right click on this link: simbad:objects in 2002A&A...393..445C and select 'bookmark this link' or equivalent in the popup menu