SDSS J160531.84+174826.1: A Dwarf Disk Galaxy With An Intermediate-Mass Black Hole

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dc.creatorDong, Xiaobo
dc.creatorWang, Tinggui
dc.creatorYuan, Weimin
dc.creatorShan, Hongguang
dc.creatorZhou, Hongyan
dc.creatorFan, Lulu
dc.creatorDou, Liming
dc.creatorWang, Huiyuan
dc.creatorWang, Junxian
dc.creatorLu, Honglin
dc.date2006-10-05
dc.date2006-12-16
dc.date.accessioned2026-07-07T10:23:47Z
dc.date.available2026-07-07T10:23:47Z
dc.descriptionWe 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 H-alpha line with FWHM=781 km/s is detected in its optical spectrum, and a bright, point-like nucleus is evident from a HST imaging observation. Non-thermal X-ray emission is also detected from the nucleus. The black hole mass, as estimated from the luminosity and width of the broad H-alpha component, is about 7x10^4 \msun. The host galaxy appears to be a disk galaxy with a boxy bulge or nuclear bar; with an absolute magnitude of M_R = -17.8 (M_B = -16.4), it is among the least luminous host galaxies ever identified for a Seyfert 1.
dc.descriptionrevised version accepted by ApJ
dc.identifierhttps://arxiv.org/abs/astro-ph/0610145
dc.identifierhttp://arxiv.org/abs/astro-ph/0610145
dc.identifierAstrophys.J.657:700-705,2007
dc.identifierdoi:10.1086/510899
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175957
dc.subjectAstrophysics
dc.titleSDSS J160531.84+174826.1: A Dwarf Disk Galaxy With An Intermediate-Mass Black Hole
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