Chandra X-ray Observations of the Spiral Galaxy M81

Preprint

11 June 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/0206160

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

LIMITING OPTICAL
CHANDRA X RAY
X RAY SOURCE
RAY SOURCES
LUMINOSITY
GALAXY M81
M81

All Related Versions

Version 1, 2002-06-11, ArXiv
Published version: The Astrophysical Journal Supplement Series, 144 (2), 213.

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