The Extraordinary Abundances of Quasar Broad Absorption Line Regions: A Matter of Novae? | Zendy

G. A. Shields | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

The Extraordinary Abundances of Quasar Broad Absorption Line Regions: A Matter of Novae?

Author(s) -

G. A. Shields

Publication year - 1996

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/310001

Subject(s) - astrophysics , qsos , physics , quasar , white dwarf , astronomy , supermassive black hole , accretion (finance) , line (geometry) , nova (rocket) , galaxy , stars , aeronautics , engineering , geometry , mathematics

The broad absorption lines (BALs) of QSOs indicate abundances of heavyelements, relative to hydrogen, that are 1 to 2 orders of magnitude higher thanthe solar values. In at least one QSO, an especially large enhancement ofphosphorus is observed. These abundances resemble those in Galactic novae, andthis suggests that novae may produce the BAL gas. The needed rate of novaoutbursts may come from single white dwarfs that accrete gas as they passthrough a supermassive accretion disk around a central black hole.Comment: 9 pages including 1 Postscript figure. Uses aaspp4.sty and flushrt.sty. Uuencoded, gzipped tarfile. To appear in Astrophys. J. (Letters), 1996 April 1

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research