Abstract
We report on the results of R-band observations of the error box of the γ-ray burst of 1997 August 28 made between 4 hr and 8 days after this burst occurred. No counterpart was found varying by more than 0.2 mag down to R = 23.8. We discuss the consequences of this nondetection for relativistic blast wave models of γ-ray bursts and the possible effect of redshift on the relation between optical absorption and the low-energy cutoff in the X-ray afterglow spectrum.
Original language | English (US) |
---|---|
Pages (from-to) | L27-L30 |
Journal | Astrophysical Journal |
Volume | 493 |
Issue number | 1 PART II |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
Keywords
- Dust, extinction
- Galaxies: general
- Gamma rays: bursts
- Gamma rays: observations
- Radiation mechanisms: nonthermal
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science