Spectral Transitions of an Ultraluminous X-Ray Source, NGC 2403 Source 3
نویسندگان
چکیده
منابع مشابه
The ultraluminous X-ray source NGC 1313 X-2
NGC 1313 X-2 is one of the brightest ultraluminous X-ray sources in the sky, at both X-ray and optical wavelengths; therefore, quite a few studies of available ESO VLT and HST data have appeared in the literature. Here, we present our analysis of VLT/FORS1 and HST/ACS photometric data, confirming the identification of the B ∼ 23 mag blue optical counterpart. We show that the system is part of a...
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We present a new analysis of X-ray spectra of the archetypal ultraluminous X-ray source (ULX) Holmberg IX X-1 obtained by the Swift, XMM-Newton and NuSTAR observatories. This ULX is a persistent source, with a typical luminosity of ∼10 erg s, that varied by a factor of 4 – 5 over eight years. We find that its spectra tend to evolve from relatively flat or two-component spectra in the medium ene...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 2009
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/61.sp1.s279