SIMBAD references

2003MNRAS.346..265K - Mon. Not. R. Astron. Soc., 346, 265-272 (2003/November-3)

XMM-Newton observation of the X-ray point source population of the starburst galaxy IC 342.


Abstract (from CDS):

We present the results of an XMM-Newton observation of the starburst galaxy IC 342. Thirty-seven X-ray point sources were detected down to a luminosity limit of ∼1037 erg/s. Most of the sources are located near the spiral arms. The X-ray point source luminosity function is consistent with a power-law shape with a slope of 0.55, typical of starburst galaxies. We also present the energy spectra of several ultraluminous X-ray sources (ULXs), including the luminous X-ray source in the galactic nucleus. Except for the nucleus and a luminous supersoft X-ray source, other ULXs can generally be fitted with a simple power-law spectral model. The nucleus is very luminous (∼1040 erg/s in 0.2-12 keV) and requires disc blackbody and power-law components to describe the X-ray emission. The spectral fit reveals a cool accretion disc (kT 0.11 keV) and suggests that the source harbours either an intermediate-mass black hole or a stellar-mass black hole with outflow.

Abstract Copyright: 2003 RAS

Journal keyword(s): galaxies: individual: IC 342 - galaxies: starburst - X-rays: binaries - X-rays: galaxies

Nomenclature: Table 1: [K2003c] XNN (Nos X1-X37).

Simbad objects: 39

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