Chandra X-ray Observations of the Spiral Galaxy M81
Astrophysics
2009-11-07 v1
Abstract
A Chandra X-Ray Observatory ACIS-S imaging observation is used to study the population of X-ray sources in the nearby Sab galaxy M81 (NGC 3031). A total of 177 sources are detected with 124 located within the D25 isophote to a limiting X-ray luminosity of 3e36 ergs/cm2/s. Source positions, count rates, luminosities in the 0.3-8.0 keV band, limiting optical magnitudes, and potential counterpart identifications are tabulated. Spectral and timing analysis of the 36 brightest sources are reported including the low-luminosity active galactic nucleus, SN 1993J, and the Einstein-discovered ultra-luminous X-ray source X6.
Keywords
Cite
@article{arxiv.astro-ph/0206160,
title = {Chandra X-ray Observations of the Spiral Galaxy M81},
author = {Douglas A. Swartz and Kajal K. Ghosh and Michael L. McCollough and Thomas G. Pannuti and Allyn F. Tennant and Kinwah Wu},
journal= {arXiv preprint arXiv:astro-ph/0206160},
year = {2009}
}
Comments
27 pages, 17 figures, 2 tables, submitted to ApJ