X-ray properties of NGC 300

Free access article

Issue		A&A Volume 443, Number 1, November III 2005


Page(s)		103 - 114
Section		Extragalactic astronomy
DOI		http://dx.doi.org/10.1051/0004-6361:20042162

A&A 443, 103-114 (2005)
DOI: 10.1051/0004-6361:20042162

I. Global properties of X-ray point sources and their optical counterparts

S. Carpano¹, J. Wilms², M. Schirmer^{3, 4} and E. Kendziorra¹

¹ Institut für Astronomie und Astrophysik, Abteilung Astronomie, Universität Tübingen, Sand 1, 72076 Tübingen, Germany
e-mail: carpano@astro.uni-tuebingen.de
² Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
³ Institut für Astrophysik und Extraterrestrische Forschung, Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
⁴ Isaac Newton Group of Telescopes, 38700 Santa Cruz de La Palma, Spain

(Received 12 October 2004 / Accepted 14 July 2005 )

Abstract
We present X-ray properties of NGC 300 point sources, extracted from 66 ks of XMM-Newton data taken in 2000 December and 2001 January. A total of 163 sources were detected in the energy range of 0.3-6 keV. We report on the global properties of the sources detected inside the D₂₅ optical disk, such as the hardness ratio and X-ray fluxes, and on the properties of their optical counterparts found in B, V, and R images from the 2.2 m MPG/ESO telescope. Furthermore, we cross-correlate the X-ray sources with SIMBAD, the USNO-A2.0 catalog, and radio catalogues.

Key words: galaxies: individual: NGC 300 -- X-rays: galaxies

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