Journal article
Resolving the X-ray emission from the Lyman-continuum emitting galaxy Tol 1247-232
Monthly notices of the Royal Astronomical Society, Vol.471(4), pp.4234-4238
2017
DOI: 10.1093/mnras/stx1945
Abstract
Abstract
Chandra observations of the nearby, Lyman-continuum (LyC) emitting galaxy Tol 1247-232 resolve the X-ray emission and show that it is dominated by a point-like source with a hard spectrum (Γ = 1.6 ± 0.5) and a high luminosity [(9 ± 2) × 1040 erg s− 1]. Comparison with an earlier XMM–Newton observation shows flux variation of a factor of 2. Hence, the X-ray emission likely arises from an accreting X-ray source: a low-luminosity active galactic nucleus or one or a few X-ray binaries. The Chandra X-ray source is similar to the point-like, hard spectrum (Γ = 1.2 ± 0.2), high-luminosity (1041 erg s− 1) source seen in Haro 11, which is the only other confirmed LyC-emitting galaxy that has been resolved in X-rays. We discuss the possibility that accreting X-ray sources contribute to LyC escape.
Details
- Title: Subtitle
- Resolving the X-ray emission from the Lyman-continuum emitting galaxy Tol 1247-232
- Creators
- P Kaaret - University of IowaM Brorby - University of IowaL Casella - University of IowaA. H Prestwich - Harvard University
- Resource Type
- Journal article
- Publication Details
- Monthly notices of the Royal Astronomical Society, Vol.471(4), pp.4234-4238
- DOI
- 10.1093/mnras/stx1945
- ISSN
- 0035-8711
- eISSN
- 1365-2966
- Publisher
- Oxford University Press
- Language
- English
- Date published
- 2017
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199713802771
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