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27 April 2024 |
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Chandra X-ray Observations of the Spiral Galaxy M81 | | Douglas A. Swartz
; Kajal K. Ghosh
; Michael L. McCollough
; Thomas G. Pannuti
; Allyn F. Tennant
; Kinwah Wu
; | | Date: |
11 Jun 2002 | | Subject: | astro-ph | | Affiliation: | USRA/MSFC), Kajal K. Ghosh (USRA/MSFC), Michael L. McCollough (USRA/MSFC), Thomas G. Pannuti (MIT), Allyn F. Tennant (NASA/MSFC), Kinwah Wu (MSSL/UCL | | 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. | | Source: | arXiv, astro-ph/0206160 | | Services: | Forum | Review | PDF | Favorites | |
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