NAOC Open IR
Extending the Calibration of C iv-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei**Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program GO-12922.
Park,Daeseong1,2,3; Barth,Aaron J.3; Woo,Jong-Hak4; Malkan,Matthew A.5; Treu,Tommaso5,6; Bennert,Vardha N.7; Assef,Roberto J.8; Pancoast,Anna9
2017-04-20
Source PublicationThe Astrophysical Journal
ISSN0004-637X
Volume839Issue:2
AbstractAbstract We provide an updated calibration of C iv λ 1549 broad emission line–based single-epoch (SE) black hole (BH) mass estimators for active galactic nuclei (AGNs) using new data for six reverberation-mapped AGNs at redshift z = 0.005 – 0.028 with BH masses (bolometric luminosities) in the range 10 6.5 – 10 7.5 M ⊙ ( 10 41.7 – 10 43.8 erg s?1). New rest-frame UV-to-optical spectra covering 1150–5700 ? for the six AGNs were obtained with the Hubble Space Telescope (HST). Multicomponent spectral decompositions of the HST spectra were used to measure SE emission-line widths for the C iv, Mg ii, and Hβ lines, as well as continuum luminosities in the spectral region around each line. We combine the new data with similar measurements for a previous archival sample of 25 AGNs to derive the most consistent and accurate calibrations of the C iv-based SE BH mass estimators against the Hβ reverberation-based masses,?using three different measures of broad-line width: full?width at half maximum (FWHM), line dispersion ( σ line ), and mean absolute deviation (MAD). The newly expanded sample at redshift z = 0.005 – 0.234 covers a dynamic range in BH mass (bolometric luminosity) of log M BH / M ☉ = 6.5 – 9.1 ( log L bol / erg s?1 = 41.7 – 46.9 ), and we derive the new C iv-based mass estimators using a Bayesian linear regression analysis over this range. We generally recommend the use of σ line or MAD rather than FWHM to obtain a less biased velocity measurement of the C iv emission line, because its narrow-line component contribution is difficult to decompose from the broad-line profile.
Keywordgalaxies: active galaxies: nuclei methods: statistical
DOI10.3847/1538-4357/aa6a53
Language英语
WOS IDIOP:0004-637X-839-2-aa6a53
PublisherThe American Astronomical Society
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/36043
Collection中国科学院国家天文台
Affiliation1.Korea Astronomy and Space Science Institute, Daejeon, 34055, Korea; daeseongpark@kasi.re.kr
2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA; barth@uci.edu
4.Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul, 151-742, Korea; woo@astro.snu.ac.kr
5.Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA; malkan@astro.ucla.edu, tt@astro.ucla.edu
6.Department of Physics, University of California, Santa Barbara, CA 93106, USA
7.Physics Department, California Polytechnic State University, San Luis Obispo, CA 93407, USA; vbennert@calpoly.edu
8.Núcleo de Astronomía de la Facultad de Ingeniería, Universidad Diego Portales, Av. Ejército Libertador 441, Santiago, Chile; roberto.assef@mail.udp.cl
9.Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138, USA; anna.pancoast@cfa.harvard.edu
First Author AffilicationNational Astronomical Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Park,Daeseong,Barth,Aaron J.,Woo,Jong-Hak,et al. Extending the Calibration of C iv-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei**Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program GO-12922.[J]. The Astrophysical Journal,2017,839(2).
APA Park,Daeseong.,Barth,Aaron J..,Woo,Jong-Hak.,Malkan,Matthew A..,Treu,Tommaso.,...&Pancoast,Anna.(2017).Extending the Calibration of C iv-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei**Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program GO-12922..The Astrophysical Journal,839(2).
MLA Park,Daeseong,et al."Extending the Calibration of C iv-based Single-epoch Black Hole Mass Estimators for Active Galactic Nuclei**Based on observations made with the NASA/ESA Hubble Space Telescope, obtained at the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy, Inc., under NASA contract NAS 5-26555. These observations are associated with program GO-12922.".The Astrophysical Journal 839.2(2017).
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