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Was 49: Mirror for a hidden Seyfert 1 galaxy

Authors :
Halpern, Jules
Moran, E
Kay, L
Antonucci, R
Publication Year :
1993
Publisher :
United States: NASA Center for Aerospace Information (CASI), 1993.

Abstract

Was 49 is an interacting pair of Seyfert galaxies at z = 0.063, one of which contains a hidden Seyfert 1 nucleus as evidenced by the highly polarized broad wings on its Balmer lines. The disk of the main galaxy, Was 49a, appears to be globally photoionized by a powerful continuum source, undoubtedly the hidden Seyfert 1 companion, Was 49b. The intrinsic luminosity of Was 49b is at least 100 times larger than the observed (scattered) luminosity. A single SWP spectrum of the pair, which can be spatially resolved in the large aperture was obtained. A narrow Ly-alpha line was detected from Was 49b, the hidden Seyfert 1, at a flux level consistent with that of an unreddened Seyfert 2 galaxy. The lack of detection of a continuum is consistent with a power-law of v(sup -1) or steeper extrapolated from the optical, again consistent with the spectrum of other Seyfert 2 and hidden Seyfert 1 galaxies.

Subjects

Subjects :
Astrophysics

Details

Language :
English
Database :
NASA Technical Reports
Notes :
NAG5-2092
Publication Type :
Report
Accession number :
edsnas.19940010212
Document Type :
Report