SIMBAD references

2005ApJ...621..139C - Astrophys. J., 621, 139-145 (2005/March-1)

EGRET upper limits and stacking searches of gamma-ray observations of luminous and ultraluminous infrared galaxies.


Abstract (from CDS):

We present a stacking analysis of EGRET γ-ray observations at the positions of luminous and ultraluminous infrared galaxies. The latter were selected from the recently presented HCN survey, which is thought to contain the most active star-forming regions of the universe. Different sorting criteria are used, and since there is no positive collective detection of γ-ray emission from these objects, we determined both collective and individual upper limits. The uppermost excess we find appears in the case of ULIRGs ordered by redshift, at a value of 1.8 σ.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Starburst - Gamma Rays: Observations

Simbad objects: 68

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