Is There a Black Hole in NGC 4382?
dc.contributor.author | Gültekin, Kayhan | en_US |
dc.contributor.author | Richstone, Douglas O. | en_US |
dc.contributor.author | Gebhardt, Karl | en_US |
dc.contributor.author | Faber, S. M. | en_US |
dc.contributor.author | Lauer, Tod R. | en_US |
dc.contributor.author | Bender, Ralf | en_US |
dc.contributor.author | Kormendy, John | en_US |
dc.contributor.author | Pinkney, Jason C. | en_US |
dc.date.accessioned | 2012-04-06T20:57:32Z | |
dc.date.available | 2012-04-06T20:57:32Z | |
dc.date.issued | 2011 | en_US |
dc.identifier.citation | Gültekin, Kayhan; Richstone, Douglas O.; Gebhardt, Karl; Faber, S. M.; Lauer, Tod R.; Bender, Ralf; Kormendy, John; Pinkney, Jason (2011). "Is There a Black Hole in NGC 4382?." The Astrophysical Journal, vol. 741, 1, 38. <http://hdl.handle.net/2027.42/90768> | en_US |
dc.identifier.uri | http://stacks.iop.org/0004-637X/741/i=1/a=38 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/90768 | |
dc.description.abstract | We present Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph observations of the galaxy NGC 4382 (M85) and axisymmetric models of the galaxy to determine mass-to-light ratio ( ##IMG## [http://ej.iop.org/icons/Entities/Upsi.gif] {Upsilon} V ) and central black hole mass ( M BH ). We find ##IMG## [http://ej.iop.org/icons/Entities/Upsi.gif] {Upsilon} V = 3.74 ± 0.1 M _ / L _ and M BH = 1.3 +5.2 – 1.2 _ 10 7 M _ at an assumed distance of 17.9 Mpc, consistent with no black hole. The upper limit, M BH < 9.6 _ 10 7 M _ (2_) or M BH < 1.4 _ 10 8 (3_), is consistent with the current M -_ relation, which predicts M BH = 8.8 _ 10 7 M _ at _ e = 182 km s –1 , but low for the current M - L relation, which predicts M BH = 7.8 _ 10 8 M _ at L V = 8.9 _ 10 10 L _, V . HST images show the nucleus to be double, suggesting the presence of a nuclear eccentric stellar disk, analogous to the Tremaine disk in M31. This conclusion is supported by the HST velocity dispersion profile. Despite the presence of this non-axisymmetric feature and evidence of a recent merger, we conclude that the reliability of our black hole mass determination is not hindered. The inferred low black hole mass may explain the lack of nuclear activity. | en_US |
dc.publisher | IOP Publishing | en_US |
dc.title | Is There a Black Hole in NGC 4382? | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Physics | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/90768/1/0004-637X_741_1_38.pdf | |
dc.identifier.doi | 10.1088/0004-637X-741-1-38 | en_US |
dc.identifier.source | The Astrophysical Journal | en_US |
dc.owningcollname | Physics, Department of |
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