A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst

Details A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst

Jul 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996astl...22..502s&link_type=abstract

Astronomy Letters, Volume 22, Issue 4, July 1996, pp.502-508; Pis'ma v Astronomicheskii Zhurnal, Vol. 22, p. 563

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Single compact objects of a neutron-star type in the solar neighborhood with a finite, nonzero surface temperature are potential sources of gamma-ray bursts (GRBs). Within the framework of this hypothesis, a method of searching for an appropriate optical candidate in the error region of an energetic GRB is considered. A 120" x 80" area of the sky that includes the central part of the gamma-ray error box of GRB790613 is studied in the B, V and R bands. The B-V and V-R colors were measured for 263 sources with a signal-to-noise ratio (S/N) > 4 up to magnitudes B <~ 26.2^m^, V <~ 25.7^m^, and R <~ 25.2^m^. There are no blue (in the two color indices) objects up to B ~ 25^m^ near the center of the gamma-ray error box, which can be interpreted as the absence of a compact object with a temperature in the range (0.5-1.5) x 10^5^ K in this direction to distances as large as 20-40 Pc. Optical and X-ray data are used to place a possible general upper limit, T_lim_ < 1.8 x 10^5^ K, on the temperature of the putative compact objects in the vicinity of the Sun. The study of blue (B-V < 0) objects in the gamma-ray error box of GRB790613, the smallest in the northern sky, using the results of searches for point sources in the soft X-ray band in the error regions of bright GRBs, does not rule out the existence of such "cool" (T <~ 10^5^ K) objects. These objects could contribute significantly to the observed density of hidden mass not far from the Sun, and some of them could be associated with the nearest GRB sources.

Affiliated with

Also associated with

No associations

Rating

A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A search for faint blue starlike objects in the central part of the error region of the June 13, 1979, gamma-ray burst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1116970