Yet another galaxy identification for anultraluminous X-ray source

2003/05/23 by N. Masetti, L. Foschini, L. C. Ho +4
Physics and Astronomy · #Astrophysical Phenomena and Observations #Astrophysics and Cosmic Phenomena #Galaxies: Formation, Evolution, Phenomena #astro-ph

paper · pdf · doi:10.1051/0004-6361:20030785

published as Astron.Astrophys. 406 (2003) L27-L32 · 5 pages, 3 figures, 1 table, accepted for publication on A&A Letters

arxiv created 2003/05/23 · openalex publication_date 2003/07/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

We report on the identification of the optical and infrared counterparts of the ultraluminous X-ray source (ULX) XMMU J121214.5+131248 (NGC4168-ULX1). The optical spectrum yields a redshift of , which implies that the ULX is not associated with the nearby galaxy NGC 4168, but rather with a background object. Optical spectral line ratios and the spectral energy distribution constructed from the available data indicate that the source is likely a starburst nucleus.

Citations

• An optimal extraction algorithm for CCD spectroscopy
• The identification of an optical counterpart to the super-Eddington X-ray source NGC 5204 X-1
• On Measuring Nebular Chemical Abundances in Distant Galaxies Using Global Emission‐Line Spectra
• Star Formation in Galaxies Along the Hubble Sequence