{ "id": "astro-ph/0011389", "version": "v1", "published": "2000-11-21T14:54:39.000Z", "updated": "2000-11-21T14:54:39.000Z", "title": "Constraining the black hole mass and accretion rate in the narrow-line Seyfert 1 RE J1034+396", "authors": [ "E. M. Puchnarewicz", "K. O. Mason", "A. Siemiginowska", "A. Fruscione", "A. Comastri", "F. Fiore", "I. Cagnoni" ], "comment": "ApJ accepted", "doi": "10.1086/319775", "categories": [ "astro-ph" ], "abstract": "We present a comprehensive study of the spectrum of the narrow-line Seyfert 1 galaxy RE J1034+396, summarizing the information obtained from the optical to X-rays with observations from the William Herschel 4.2m Telescope (WHT), the Hubble Space Telescope, the Extreme UltraViolet Explorer, ROSAT, ASCA and BeppoSAX. The BeppoSAX spectra reveal a soft component which is well-represented by two blackbodies with kT of about 60 eV and 160 eV, mimicking that expected from a hot, optically-thick accretion disc around a low-mass black hole. This is borne out by our modeling of the optical to X-ray nuclear continuum, which constrains the physical parameters of a NLS1 for the first time. The models demonstrate that RE J1034+396 is likely to be a system with a nearly edge-on accretion disk (60 to 75 degrees from the disk axis), accreting at nearly Eddington rates (0.3 to 0.7 L_edd) onto a low mass (about 2 million solar masses) black hole (abridged).", "revisions": [ { "version": "v1", "updated": "2000-11-21T14:54:39.000Z" } ], "analyses": { "keywords": [ "black hole mass", "narrow-line seyfert", "accretion rate", "bepposax spectra reveal", "million solar masses" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "inspire": 548722 } } }