SIMBAD references

2006MNRAS.373.1627W - Mon. Not. R. Astron. Soc., 373, 1627-1632 (2006/December-3)

On the compact nature of the most luminous ULX in the Cartwheel ring.

WOLTER A., TRINCHIERI G. and COLPI M.

Abstract (from CDS):

We report the first detection of flux variability in the most luminous X-ray source in the southern ring of the Cartwheel galaxy. XMM-Newton data show that the luminosity has varied over a time-scale of 6 months from L0.5–10keV∼ 1.3x1041erg/s, consistent with the previous Chandra observation, to L0.5–10keV≲ 6.4x1040erg/s. This fact provides the first evidence that the source is compact in nature and is not a collection of individual fainter sources, such as supernova remnants. The source has been repeatedly observed at the very high-luminosity level of L0.5–10keV∼ 1.3x1041erg/s for a period of at least 4 yr before dimming at the current level. It represents then the first example of an accreting object revealed in a long-lived state of extremely high luminosity.

Abstract Copyright: 2006 The Authors. Journal compilation © 2006 RAS

Journal keyword(s): black hole physics - galaxies: individual: Cartwheel - X-rays: binaries - X-rays: galaxies

CDS comments: Sources N.7, 9, 10, 13, 14, 16 and 17 are [WT2004] 7, 9, 10, 13, 14, 16 and 17 in Simbad.

Simbad objects: 17

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2021.12.06-20:01:35

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