2007ApJ...657..700D


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.29CET00:50:06

2007ApJ...657..700D - Astrophys. J., 657, 700-705 (2007/March-2)

SDSS J160531.84+174826.1: a dwarf disk galaxy with an intermediate-mass black hole.

DONG X., WANG T., YUAN W., SHAN H., ZHOU H., FAN L., DOU L., WANG H., WANG J. and LU H.

Abstract (from CDS):

We report the discovery of a dwarf Seyfert 1 active galactic nucleus (AGN) with a candidate intermediate-mass black hole, hosted by the dwarf galaxy SDSS J160531.84+174826.1 at z=0.032. A broad component of the Hα line with FWHM=781 km/s is detected in its optical spectrum, and a bright, pointlike nucleus is evident from a Hubble Space Telescope (HST) imaging observation. Nonthermal X-ray emission is also detected from the nucleus. The black hole mass, as estimated from the luminosity and width of the broad Hα component, is about 7x104 M. The host galaxy appears to be a disk galaxy with a boxy bulge or nuclear bar. With an absolute magnitude of MR=-17.8 (MB=-16.4), it is among the least luminous host galaxies ever identified for a Seyfert 1.

Abstract Copyright:

Journal keyword(s): Galaxies: Active - Galaxies: Dwarf - galaxies: individual (SDSS J160531.84+174826.1) - Galaxies: Nuclei - Galaxies: Seyfert

Status at CDS:  

Simbad objects: 5

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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NAME G 1200-2038 Sy1 12 02 56.8 -20 56 03           ~ 134 0
2 NGC 4395 Sy2 12 25 48.8639154223 +33 32 48.694684028 10.84 10.54 10.11 9.98   ~ 975 1
3 ACO 2151 ClG 16 05 15.0 +17 44 55           ~ 549 3
4 2XMM J160531.8+174825 AGN 16 05 31.8490706465 +17 48 26.223103808           ~ 22 0
5 IC 1182 AGN 16 05 36.7955748492 +17 48 07.418013290   16.20 15.19     ~ 151 0

    Equat.    Gal    SGal    Ecl

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2020.03.29-00:50:06

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