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Five fake ultra-luminous X-ray sources

Bibcode
2013A&A...549A..81G
DOI
10.1051/0004-6361/201220433
Gutiérrez, C. M.
Bibliographical reference

Astronomy and Astrophysics, Volume 549, id.A81, 5 pp.

Advertised on:
1
2013
Journal
Astronomy and Astrophysics
Number of authors
1
IAC number of authors
1
Citations
11
Refereed citations
11
Description
Context. The nature of ultra-luminous X-ray (ULX) sources is still a matter of debate. Studies of their counterparts in other spectral ranges will help to clarify the nature of those sources. Aims: Our goal was to identify and characterize the optical counterparts of five sources catalogued as ULXs. Methods: We obtained optical imaging and intermediate resolution spectroscopy of these optical counterparts. Results: We demonstrate that five sources previously catalogued as ULXs, two are foreground stars in our galaxy and three are background active galactic nuclei.
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Project Image
Morphology and dynamics of the Milky Way
This project consists of two parts, each differentiated but both complementary: morphology and dynamics. Detailed study of the morphology of the Milky Way pretends to provide a data base for the stellar distribution in the most remote and heavily obscured regions of our Galaxy, through the development of semiempirical models based on the
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López Corredoira
In progress
Type
Refereed
Quasars
The Milky Way and the Local Group (MWLG)

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