2009A&A...497..729F


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.06CEST22:22:07

2009A&A...497..729F - Astronomy and Astrophysics, volume 497, 729-741 (2009/4-3)

GRB 060605: multi-wavelength analysis of the first GRB observed using integral field spectroscopy.

FERRERO P., KLOSE S., KANN D.A., SAVAGLIO S., SCHULZE S., PALAZZI E., MAIORANO E., BOEHM P., GRUPE D., OATES S.R., SANCHEZ S.F., AMATI L., GREINER J., HJORTH J., MALESANI D., BARTHELMY S.D., GOROSABEL J., MASETTI N. and ROTH M.M.

Abstract (from CDS):

The long and relatively faint gamma-ray burst GRB 060605 detected by Swift/BAT lasted about 20s. Its afterglow could be observed with Swift/XRT for nearly 1 day, while Swift/UVOT could detect the afterglow during the first 6h after the event. Here, we report on integral field spectroscopy of its afterglow performed with PMAS/PPak mounted at the Calar Alto 3.5m telescope. In addition, we report on a detailed analysis of XRT and UVOT data and on the results of deep late-time VLT observations that reveal the GRB host galaxy. We find that the burst occurred at a redshift of z=3.773, possibly associated with a faint, RC=26.4±0.3 host. Based on the optical and X-ray data, we deduce information on the SED of the afterglow, the position of the cooling frequency in the SED, the nature of the circumburst environment, its collimation factor, and its energetics. We find that the GRB fireball was expanding into a constant-density medium and that the explosion was collimated with a narrow half-opening angle of about 2.4 degrees. The initial Lorentz factor of the fireball was about 250; however, its beaming-corrected energy release in the gamma-ray band was comparably low. The optical, X-ray afterglow, on the other hand, was rather luminous. Finally, we find that the data are consistent within the error bars with an achromatic evolution of the afterglow during the suspected jet break time at about 0.27 days after the burst.

Abstract Copyright:

Journal keyword(s): gamma rays: bursts

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 GRB 021004 gB 00 26 54.68 +18 55 41.6           ~ 514 1
2 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 247 0
3 GRB 030226 gB 11 33 04.9 +25 53 56           ~ 186 2
4 HZ 44 HS* 13 23 35.2632775627 +36 07 59.545982652 10.186 11.42 11.65 12.00 11.995 sdBN0VIIHe28 371 0
5 GRB 050502A gB 13 29 46.250 +42 40 27.50           ~ 55 0
6 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 322 1
7 GRB 050315 gB 20 25 54.100 -42 36 02.19           ~ 192 0
8 GRB 060605 gB 21 28 37.320 -06 03 31.30   20.12 16.53     ~ 167 0
9 GRB 060607 gB 21 58 50.400 -22 29 46.70 18.49 16.67 15.09     ~ 258 1
10 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 338 1

    Equat.    Gal    SGal    Ecl

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2020.07.06-22:22:07

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