Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...353l...3m&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 353, April 10, 1990, p. L3-L6.
Astronomy and Astrophysics
Astronomy
34
Active Galactic Nuclei, Cosmic X Rays, Local Group (Astronomy), Relic Radiation, Brightness Distribution, Gravitational Effects, Heao 1, Infrared Astronomy Satellite, Mass Distribution
Scientific paper
X-ray emission from 30 resolved AGN's are used to study the dipole moment of their flux distribution on the sky. The data are derived from the Piccinotti et al. (1982) survey. X-ray fluxes are analyzed in terms of the alignment with the direction of the Local Group (LG) of galaxies. It is observed that the direction of the dipole moment of the flux is (313 deg, 38 deg); the dipole direction deviates from the LG velocity by 39 deg. It is detected that the amplitude of the dipole is about 50 percent of the corresponding monopole. Based on a comparison of the data with previous observations it is suggested that the X-ray emission from AGNs traces the underlying mass distribution at least as strongly as optical and IR emission from galaxies.
Boldt Elihu
Miyaji Takamitsu
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