polarization; scattering; galaxies active; supermassive black holes; Astrophysics - Astrophysics of Galaxies
Abstract :
[en] For type-1 active galactic nuclei (AGNs) for which the equatorial scattering is the dominant broad-line polarization mechanism, it is possible to measure the supermassive black hole (SMBH) mass by tracing the Keplerian motion across the polarization plane position angle φ. So far, this method has been used for 30 objects but only for H α emission line. We explore the possibilities of this method for determining SMBH masses using polarization in broad emission lines by applying it for the first time to Mg II λ2798 Å spectral line. We use three-dimensional (3-D) Monte Carlo radiative transfer code STOKES for simultaneous modelling of equatorial scattering of H α, H β, and Mg II lines. We included vertical inflows and outflows in the Mg II broad-line region (BLR). We find that polarization states of H α and H β lines are almost identical and SMBH-mass estimates differ by 7 per cent. For Mg II line, we find that φ exhibits an additional 'plateau' with a constant φ, which deviates than the profiles expected for pure Keplerian motion. SMBH-mass estimates using Mg II line are higher by up to 35 per cent than those obtained from H α and H β lines. Our model shows that for vertical inflows and outflows in the BLR that are higher or comparable to the Keplerian velocity, this method can be applied as a first approximation for obtaining SMBH mass.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Savic, Djordje ; Université de Liège - ULiège > Département d'astrophysique, géophysique et océanographie (AGO) > Space sciences, Technologies and Astrophysics Research (STAR) ; Université de Strasbourg [FR] ; Astronomical Observatory of Belgrade, Serbia
Popović, L. Č.; Astronomical Observatory of Belgrade, Serbia, University of Belgrade, Department of Astronomy
Shablovinskaya, E.; SAO, Special Astrophysical Observatory, Moscow
Afanasiev, V. L.; SAO, Special Astrophysical Observatory, Moscow
Language :
English
Title :
Estimating supermassive black hole masses in active galactic nuclei using polarization of broad Mg II, H α, and H β lines
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
Bibliography
Afanasiev V. L., Popović L. C ., 2015, ApJ, 800, L35 (AP15)
Afanasiev V. L., Popović L. C ., Shapovalova A. I., Borisov N. V., Ilić D., 2014, MNRAS, 440, 519
Afanasiev V. L., Popović L. C ., Shapovalova A. I., 2019, MNRAS, 482, 4985
Antonucci R., 1993, ARA&A, 31, 473
Bahcall J. N., Kozlovsky B.-Z., Salpeter E. E., 1972, ApJ, 171, 467
Barth A. J. et al., 2013, ApJ, 769, 128
Barth A. J. et al., 2015, ApJS, 217, 26
Baskin A., Laor A., 2005, MNRAS, 356, 1029
Bentz M. C., Katz S., 2015, PASP, 127, 67
Bentz M. C. et al., 2006, ApJ, 651, 775
Bentz M. C. et al., 2010, ApJ, 716, 993
Bentz M. C. et al., 2013, ApJ, 767, 149
Blandford R. D., McKee C. F., 1982, ApJ, 255, 419
Clavel J. et al., 1991, ApJ, 366, 64
Du P., Wang J.-M., 2019, ApJ, 886, 42
Du P. et al., 2014, ApJ, 782, 45
Du P. et al., 2015, ApJ, 806, 22
Du P. et al., 2018, ApJ, 856, 6
Fabian A. C., 2012, ARA&A, 50, 455
Gaskell C. M., 1982, ApJ, 263, 79
Goosmann R. W., Gaskell C. M., 2007, A&A, 465, 129
Grier C. J. et al., 2017, ApJ, 851, 21
Grier C. J. et al., 2019, ApJ, 887, 38
Heckman T. M., Kauffmann G., 2011, Science, 333, 182
Hönig S. F., 2014, ApJ, 784, L4
Ilíc D. et al., 2017, Frontiers Astron. Space Sci., 4, 12
Kaspi S., Smith P. S., Netzer H., Maoz D., Jannuzi B. T., Giveon U., 2000, ApJ, 533, 631
Kaspi S., Maoz D., Netzer H., Peterson B.M., Vestergaard M., Jannuzi B. T., 2005, ApJ, 629, 61
Kaspi S., Brandt W. N., Maoz D., Netzer H., Schneider D. P., Shemmer O., 2007, ApJ, 659, 997
Kishimoto M., Hönig S. F., Antonucci R., Millour F., Tristram K. R. W., Weigelt G., 2011, A&A, 536, A78
Kormendy J., Ho L. C., 2013, ARA&A, 51, 511
Kormendy J., Richstone D., 1995, ARA&A, 33, 581
Koshida S. et al., 2014, ApJ, 788, 159
Kovacević-Dojcinović J., Popović L. C ., 2015, ApJS, 221, 35
León-Tavares J. et al., 2013, ApJ, 763, L36
Lira P., Goosmann R. W., Kishimoto M., Cartier R., 2020, MNRAS, 491, 1
Lynden-Bell D., 1969, Nature, 223, 690
Marin F., 2018, A&A, 615, A171
Marin F., Goosmann R.W., 2014, in Ballet J., Martins F., Bournaud F., Monier R., Reylé C., eds, Proc. SF2A-2014, Ten Years of Radiative Transfer with STOKES . SAF, Paris, p. 103 Marin F., Goosmann R. W., Gaskell C. M., Porquet D., Dovciak M., 2012, A&A, 548, A121
Marin F., Goosmann R. W., Gaskell C. M., 2015, A&A, 577, A66
Marziani P., Sulentic J.W., Plauchu-Frayn I., del Olmo A., 2013a, A&A, 555, A89
Marziani P., Sulentic J. W., Plauchu-Frayn I., del Olmo A., 2013b, ApJ, 764, 150
Mejá-Restrepo J. E., Trakhtenbrot B., Lira P., Netzer H., Capellupo D. M., 2016, MNRAS, 460, 187
Mejá-Restrepo J. E., Lira P., Netzer H., Trakhtenbrot B., Capellupo D. M., 2018, Nature Astron., 2, 63
Netzer H., 2013, The Physics and Evolution of Active Galactic Nuclei, Cambridge Univ. Press, Cambridge
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.