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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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13 papers · 2 filters
The face-on disk of MAXI J1836-194
T. D. Russell, R. Soria, C. Motch +5
We present Very Large Telescope optical spectra of the black hole candidate X-ray binary MAXI J1836-194 at the onset of its 2011 outburst. Although the spectrum was taken at the be…
The 3 Ms Chandra Campaign on Sgr A*: A Census of X-ray Flaring Activity from the Galactic Center
J. Neilsen, M. A. Nowak, C. Gammie +14
Over the last decade, X-ray observations of Sgr A* have revealed a black hole in a deep sleep, punctuated roughly once per day by brief flares. The extreme X-ray faintness of this…
Off-axis irradiation and the polarization of broad emission lines in active galactic nuclei
Rene W. Goosmann, C. Martin Gaskell, Frederic Marin
The STOKES Monte Carlo radiative transfer code has been extended to model the velocity dependence of the polarization of emission lines. We use STOKES to present improved modelling…
A structure for quasars under the scope of polarisation I. The UV/optical polarisation dichotomy of type-1 and type-2 AGN
F. Marin, R. W. Goosmann
We present UV/optical spectropolarimetric modelling of the phenomenologically-based structure for quasars proposed by Elvis (2000). In this first paper of a series, we explore the…
Modelling the X-ray polarimetric signatures of complex geometry: the case study of the "changing look" AGN NGC 1365
Frederic Marin, Delphine Porquet, Rene W. Goosmann +4
"Changing look" Active Galactic Nuclei (AGN) are a subset of Seyfert galaxies characterized by rapid transitions between Compton-thin and Compton-thick regimes. In their Compton-th…
Probing the origin of the iron K_alpha line around stellar and supermassive black holes using X-ray polarimetry
Frederic Marin, Francesco Tamborra
Asymmetric, broad iron lines are a common feature in the X-ray spectra of both X-ray binaries (XRBs) and type-1 Active Galactic Nuclei (AGN). It was suggested that the distortion o…
Dissecting X-ray-emitting Gas around the Center of our Galaxy
Q. D. Wang, M. A. Nowak, S. B. Markoff +16
Most supermassive black holes (SMBHs) are accreting at very low levels and are difficult to distinguish from the galaxy centers where they reside. Our own Galaxy's SMBH provides a…
Measurement of the atmospheric energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope
The ANTARES Collaboration, S. Adrián-Martínez, A. Albert +149
Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric ν_μ+ \barν_μ…
Phase-resolved polarization properties of the pulsar striped wind synchrotron emission
J. Petri
Since the launch of the Fermi telescope more than five years ago, many new gamma-ray pulsars have been discovered with intriguing properties challenging our current understanding o…
A Search for Neutrino Emission from the Fermi Bubbles with the ANTARES Telescope
ANTARES Collaboration, S. Adrián-Martínez, A. Albert +147
Analysis of the Fermi-LAT data has revealed two extended structures above and below the Galactic Centre emitting gamma rays with a hard spectrum, the so-called Fermi bubbles. Hadro…
A Chandra/HETGS Census of X-ray Variability From Sgr A* During 2012
J. Neilsen, M. A. Nowak, C. Gammie +13
We present the first systematic analysis of the X-ray variability of Sgr A* during the Chandra X-ray Observatory's 2012 Sgr A* X-ray Visionary Project (XVP). With 38 High Energy Tr…
Search for muon neutrinos from gamma-ray bursts with the ANTARES neutrino telescope using 2008 to 2011 data
S. Adrián-Martínez, A. Albert, I. Al Samarai +146
A search for muon neutrinos in coincidence with gamma-ray bursts with the ANTARES neutrino detector using data from the end of 2007 to 2011 is performed. Expected neutrino fluxes a…
The XMM-Newton SSC survey of the Galactic Plane
A. Nebot Gomez-Moran, C. Motch, X. Barcons +17
Many different classes of X-ray sources contribute to the Galactic landscape at high energies. Although the nature of the most luminous X-ray emitters is now fairly well understood…