2009A&A...504...45P


Query : 2009A&A...504...45P

2009A&A...504...45P - Astronomy and Astrophysics, volume 504, 45-51 (2009/9-2)

Multi-wavelength observations of the GRB 080319B afterglow and the modeling constraints.

PANDEY S.B., CASTRO-TIRADO A.J., JELINEK M., KAMBLE A.P., GOROSABEL J., DE UGARTE POSTIGO A., PRINS S., OREIRO R., CHANTRY V., TRUSHKIN S., BREMER M., WINTERS J.M., POZANENKO A., KRUGLY Yu., SLYUSAREV I., KORNIENKO G., EROFEEVA A., MISRA K., RAMPRAKASH A.N., MOHAN V., BHATTACHARYA D., VOLNOVA A., PLA J., IBRAHIMOV M., IM M., VOLVACH A. and WIJERS R.A.M.J.

Abstract (from CDS):

We present observations of the GRB 080319B afterglow at optical, mm, and radio frequencies between a few hours and 67 days after the burst. We attempt to understand the nature of this extraordinarily bright explosion based on the observed properties and its comparison with afterglow models. Our observations and other published multiwavelength data were used to reconstruct the light curves and spectral energy distributions of the burst afterglow. Our results indicate that the observed features of the afterglow agrees equally well with the inter stellar matter and the stellar wind density profiles of the circumburst medium. In the case of both density profiles, the maximum synchrotron frequency νm is below optical value and the cooling break frequency νc is below X-rays, ∼104s after the burst. The derived value of the Lorentz factor at the time of naked-eye brightness is also ∼300 for a corresponding blast-wave size of ∼1018cm. The numerical fit to the multiwavelength afterglow data constraints the values of physical parameters and the emission mechanism of the burst.

Abstract Copyright:

Journal keyword(s): gamma rays: bursts

Simbad objects: 10

goto Full paper

goto View the references in ADS

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 - 2023
#notes
1 GRB 041219 gB 00 24 27.7 +62 50 34           ~ 221 1
2 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 456 0
3 GRB 060210 gB 03 50 57.370 +27 01 34.40   20.27       ~ 247 0
4 GRB 071010B gB 10 02 09.20 +45 43 52.2           ~ 153 0
5 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 252 0
6 GRB 080319B gB 14 31 41.04 +36 18 09.2           ~ 449 0
7 GRB 990123 gB 15 25 29 +44 45.0     8.95     ~ 979 1
8 GRB 050401 gB 16 31 28.84 +02 11 14.5           ~ 328 0
9 GRB 060111B gB 19 05 42.480 +70 22 33.60     17.55     ~ 84 1
10 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 374 0

To bookmark this query, right click on this link: simbad:objects in 2009A&A...504...45P and select 'bookmark this link' or equivalent in the popup menu


2023.02.09-11:20:35

© Université de Strasbourg/CNRS

    • Contact