V/V(max) test applied to Ginga gamma-ray bursts

Journal Article · Sat Nov 30 23:00:00 EST 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/186241· OSTI ID:5594886

Ogasaka, Y; Murakami, T; Nishimura, J; Yoshida, A; Fenimore, E E ^[1]

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1. Institute of Space and Astronautical Science, Sagamihara (Japan) Institute of Physical and Chemical Research, Wako (Japan) Los Alamos National Laboratory, NM (United States)

The V/V(max) test has been applied to gamma-ray burst data from Ginga. The Ginga gamma-ray burst detector covers the relatively low energy range where most of the photons occur and thus is able to observe fainter gamma-ray bursts than previous satellites. Since the launch of the satellite in 1987, 1989 gamma-ray bursts had been detected as of the beginning of October 1990. The standard V/Vmax test has been applied to the bursts. The observed value of V/V(max) = 0.35 {plus minus} 0.035 for bursts with more than 8.6 standard deviations above background suggests a nonuniformity in the source distribution which is consistent with a Galactic origin. Details of the present analysis and cautions concerning the derived values are discussed. 35 refs.

• OSTI ID: 5594886
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 383; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

661300* -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASTRONOMY
COSMIC GAMMA BURSTS
COSMIC RADIATION
DATA ANALYSIS
DETECTION
FLUX DENSITY
GALAXIES
GAMMA ASTRONOMY
IONIZING RADIATIONS
MILKY WAY
NEUTRON STARS
ORIGIN
PRIMARY COSMIC RADIATION
RADIANT FLUX DENSITY
RADIATIONS
SATELLITES
STARS