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O. Brera

3 papers hereh-index 3275 citations5 works total

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  • astro-ph3

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most citedChandra/HETGS Spectroscopy of the Galactic Black Hole GX 339-4: A Relativistic Iron Line and Evidence for a Seyfert-like Warm Absorber

170 citations · 229 across the 3 of their papers we have counts for

collaborators

3 papers

astro-ph2003★ 170 cited

Chandra/HETGS Spectroscopy of the Galactic Black Hole GX 339-4: A Relativistic Iron Line and Evidence for a Seyfert-like Warm Absorber

J. M. Miller, J. Raymond, A. C. Fabian +9

We observed the Galactic black hole GX 339-4 with the Chandra High Energy Transmission Grating Spectrometer (HETGS) for 75 ksec during the decline of its 2002-2003 outburst. The se…

astro-ph2003

Hard GRB spectra: thermal vs non-thermal emission

G. Ghirlanda, A. Celotti, G. Ghisellini

We consider the evidence for very hard low energy spectra during the prompt phase of Gamma Ray Bursts (GRB). In particular we examine the spectral evolution of GRB 980306 together…

astro-ph2003★ 59 cited

The X-ray-faint Emission of the Supermassive Nuclear Black Hole of IC1459

G. Fabbiano, M. Elvis, S. Markoff +6

Chandra observations of the supermassive black hole in the nucleus of IC1459 show a weak [L_X=8x10(40)erg s(-1), 0.3-8keV], unabsorbed nuclear X-ray source, with a slope Gamma=1.88…

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