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2004A&A...425...95D - Astronomy and Astrophysics, volume 42595-98 (2004/10-1)
High resolution Chandra X-ray imaging of the nucleus of M 33.
DUBUS G., CHARLES P.A. and LONG K.S.
Abstract (from CDS):
We show with a short Chandra HRC-S exposure that the powerful X-ray source coincident with the nucleus of M 33 is unresolved at the highest spatial resolution available to date (0.4"). The source flux is variable, doubling during the 5ks exposure. The combination of properties exhibited by M 33 X-8 establishes the source as the nearest example of the ultra-luminous X-ray sources that have been uncovered in other nearby galaxies. On short timescales, we set limits of 9% rms variability for pulsations in the 0.01-1000Hz range.
Abstract Copyright: ∼
Journal keyword(s): galaxies: individual: M 33 - galaxies: nuclei - galaxies: Local Group - X-rays: galaxies
Simbad objects: 4
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