On the X-Ray Source Luminosity Distributions in the Bulge and Disk of M31: First Results from the [ITAL]XMM-Newton[/ITAL] Survey | Zendy

S. Trudolyubov | Zendy; K. Borozdin | Zendy; W. Priedhorsky | Zendy; K. O. Mason | Zendy; F. Cordova | Zendy

Open Access

On the X-Ray Source Luminosity Distributions in the Bulge and Disk of M31: First Results from the [ITAL]XMM-Newton[/ITAL] Survey

Author(s) -

S. Trudolyubov,

K. Borozdin,

W. Priedhorsky,

K. O. Mason,

F. Cordova

Publication year - 2002

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 - 10.1086/341131

Subject(s) - bulge , physics , astrophysics , andromeda galaxy , luminosity , galaxy , population , astronomy , low mass , spiral galaxy , stars , demography , sociology

We present luminosity distributions for the X-ray sources detected withXMM-Newton in the bulge and disk of the Andromeda Galaxy (M31). The disk isclearly lacking the brighter sources which dominate X-ray emission from thebulge. This is the first convincing evidence for a difference between bulge anddisk X-ray populations in M31. Our results are in good qualitative agreementwith the luminosity distributions for low- and high-mass X-ray binariesrecently obtained by Grimm et al.(2001) for our Galaxy. This confirms thatX-ray population of the disk of M31 is dominated by fainter HMXB sources, whilethe bulge is populated with brighter LMXBs.Comment: 5 pages, 2 figures, uses emulateapj.sty, Submitted to ApJ

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