Next, we plan to investigate the connection of the black hole mass and other quasar parameters, taking advantage of the unprecedented size of the SDSS QSO sample.Ovcharov, EIvanov, V. DNedialkov, P
The Awakening of a Massive Black Hole Astronomers see a massive black hole awaken in real time | ESO SDSS1335+0728: The awakening of a ∼106 M⊙ black hole | Astronomy & Astrophysics (A&A) Astronomers watch a supermassive black hole turn on for the first time RAW VIDEO: Astronomers Vi...
Siemiginowska, "Constraints on black hole growth, Quasar lifetimes, and Eddington ratio distributions from the SDSS broad-line Quasar black hole mass function," The Astro- physical Journal, vol. 719, no. 2, pp. 1315-1334, 2010.Kelly, B. C., Vestergaard, M., Fan, X., et al. ...
black hole physicsgalaxies: activequasars: generalsurveysWe present a compilation of properties of the 105,783 quasars in the SDSS Data Release 7 (DR7) quasar catalog. In this value-added product, we compile continuum and emission line measurements around the Halpha, Hbeta, MgII and CIV ...
The black hole masses MBH and the broad line region (BLR) luminosity were obtained for 14 FSRQs by measuring the line-widths and strengths of broad emission lines from the SDSS spectra. The broad emission line measurements of five FSRQs are presented for the first time in this work. The...
Sdss j092712.65+294344.0: recoiling black hole or a sub-parsec binary candidate? ´ 1Version, RaftT. Bogdanovic´, M. Eracleous, and S. Sigurdsson, "SDSS J092712.65+294344.0: recoiling black hole or a subparsec binary candidate?" Astrophysical Journal, vol. 697, no. 1, pp. 288-...
The relationship between the black hole mass and velocity dispersion indicated with [O iii] linewidth is investigated for a sample of 87 flat-spectrum radio quasars selected from the Sloan Digital Sky Survey Data Release 3 quasar catalogue. We found that the MBHσ[O III] relation is different...
(z̄ = 1.50 ± 0.45)and includes in particular a subsample of 46 WLQs with equivalent widthsWMgii< 11Å andWCiv< 4.8Å. We compared the luminosities, black hole masses, Eddington ratios, accretion rates, variability, spectral slopes, and radio properties of the WLQs with those of ...
Dynamical ejection by a supermassive black hole is favoured to explain their origin. Aims: Locating the place of birth of an individual HVS is of utmost importance to understanding the ejection mechanism. Methods: SDSS J013655.91+242546.0 (J0136+2425 for short) was found amongst three high-...
The X-Ray Telescope (XRT) and Ultraviolet/Optical Telescope (UVOT) on board the Swift satellite observed the candidate supermassive black hole binary SDSS J153636.22+044127.0 (hereafter, J1536; Boroson & Lauer 2009, arXiv:0901.3779v1) on 2009-02-04 and 2009-02-05 for total exposures of 37...