75 citations · 192 across the 6 of their papers we have counts for
8 papers · 1 filter
The ultraluminous X-ray source NGC 1313 X-2 - Its optical counterpart and environment
F. Grisé, M. W. Pakull, R. Soria +4
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…
New flaring of an ultraluminous X-ray source in NGC 1365
R. Soria, A. Baldi, G. Risaliti +4
We have studied a highly variable ultraluminous X-ray source (ULX) in the Fornax galaxy NGC 1365, with a series of 12 Chandra and XMM-Newton observations between 2002 and 2006. In…
Black hole mass estimates from soft X-ray spectra
R. Soria, Z. Kuncic
In the absence of direct kinematic measurements, the mass of an accreting black hole is sometimes inferred from the X-ray spectral parameters of its accretion disk; specifically, f…
A deep Chandra look at the low L_B elliptical NGC821: X-ray binaries, a galactic wind and emission at the nucleus
S. Pellegrini, A. Baldi, D. W. Kim +4
The relatively nearby (distance=24.1 Mpc) elliptical galaxy NGC821, hosting a central massive black hole but inactive at all wavelengths, was observed with Chandra for a total expo…
Radio and X-ray Properties of Relativistic Beaming Models for Ultra-Luminous X-ray Sources
M. Freeland, Z. Kuncic, R. Soria +1
We calculate the broadband radio--X-ray spectra predicted by microblazar and microquasar models for Ultra-Luminous X-ray sources (ULXs), exploring the possibility that their domina…
Multi-band study of NGC 7424 and its two newly-discovered ULXs
R. Soria, Z. Kuncic, J. W. Broderick +1
We have studied the face-on, barred spiral NGC 7424 (site of the rare Type IIb SN 2001ig) with Chandra, Gemini and the Australia Telescope Compact Array. After giving revised X-ray…