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.
Related projects
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Morphology and dynamics of the Milky Way
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López Corredoira
In progress
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
Martín
López Corredoira
In progress
Type
Refereed
The Milky Way and the Local Group (MWLG)
Quasars

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