M
M. Koss
Researcher at ETH Zurich
Publications - 17
Citations - 723
M. Koss is an academic researcher from ETH Zurich. The author has contributed to research in topics: Active galactic nucleus & Luminosity. The author has an hindex of 11, co-authored 17 publications receiving 611 citations.
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Journal ArticleDOI
NuSTAR catches the unveiling nucleus of NGC 1068
Andrea Marinucci,Stefano Bianchi,Giorgio Matt,David M. Alexander,Mislav Baloković,Franz E. Bauer,Franz E. Bauer,Franz E. Bauer,W. N. Brandt,Poshak Gandhi,Matteo Guainazzi,Fiona A. Harrison,Kazushi Iwasawa,M. Koss,K. K. Madsen,Fabrizio Nicastro,Fabrizio Nicastro,Fabrizio Nicastro,Simonetta Puccetti,Simonetta Puccetti,Claudio Ricci,D. Stern,Dominic J. Walton +22 more
TL;DR: In this article, the authors present a NuSTAR and XMM-Newton monitoring campaign in 2014/2015 of the Compton-thick Seyfert 2 galaxy, NGC 1068.
Journal ArticleDOI
IC 751: a new changing-look AGN discovered by NuSTAR
Claudio Ricci,Franz E. Bauer,P. Arévalo,S. E. Boggs,W. N. Brandt,Finn Erland Christensen,Walter Craig,Poshak Gandhi,C. J. Hailey,Fiona A. Harrison,M. Koss,Craig B. Markwardt,Craig B. Markwardt,Daniel Stern,Ezequiel Treister,William W. Zhang +15 more
TL;DR: In this article, the authors present results of five Nuclear Spectroscopic Telescope Array (NuSTAR) observations of the type 2 active galactic nucleus (AGN) in IC 751, three of which were performed simultaneously with XMM-Newton or Swift/X-Ray Telescope.
Journal ArticleDOI
Insights on the Dusty Torus and Neutral Torus From Optical and X-Ray Obscuration in A Complete Volume Limited Hard X-Ray Agn Sample
Ric Davies,Leonard Burtscher,David J. Rosario,Thaisa Storchi-Bergmann,A. Contursi,R. Genzel,Javier Graciá-Carpio,E. K. S. Hicks,A. Janssen,M. Koss,Ming-yi Lin,Dieter Lutz,Witold Maciejewski,F. Muller Sanchez,G. Orban de Xivry,Claudio Ricci,R. A. Riffel,Rogemar A. Riffel,Marc Schartmann,A. Schnorr-Müller,Amiel Sternberg,Eckhard Sturm,Linda J. Tacconi,Sylvain Veilleux +23 more
TL;DR: In this article, the authors describe a complete volume limited sample of nearby active galaxies selected by their 14?195 keV luminosity, and outline its rationale for studying the mechanisms regulating gas inflow and outflow.
Journal ArticleDOI
The variable hard X-ray emission of NGC4945 as observed by NuSTAR
Simonetta Puccetti,Andrea Comastri,Fabrizio Fiore,Patricia Arevalo,Guido Risaliti,Franz E. Bauer,W. N. Brandt,Daniel Stern,Fiona A. Harrison,David M. Alexander,S. E. Boggs,Finn Erland Christensen,William W. Craig,Poshak Gandhi,Charles J. Hailey,M. Koss,George B. Lansbury,Bin Luo,Greg Madejski,Giorgio Matt,Dominic J. Walton,W. W. Zhang +21 more
TL;DR: In this paper, a broadband spectral and temporal analysis of multiple NuSTAR observations combined with archival Suzaku and Chandra data of NGC4945, the brightest extragalactic source at 100 keV, is presented.
Journal ArticleDOI
The NuSTAR extragalactic survey: First direct measurements of the ≳10 keV X-ray luminosity function for active galactic nuclei at z > 0.1
James Aird,David M. Alexander,David R. Ballantyne,Francesca Civano,A. Del-Moro,Ryan C. Hickox,George B. Lansbury,James Mullaney,Franz E. Bauer,W. N. Brandt,Andrea Comastri,A. C. Fabian,Poshak Gandhi,Poshak Gandhi,Fiona A. Harrison,B. Luo,D. Stern,Ezequiel Treister,Luca Zappacosta,Marco Ajello,Roberto J. Assef,Mislav Baloković,S. E. Boggs,Murray Brightman,Finn Erland Christensen,Walter Craig,Martin Elvis,K. Forster,Brian W. Grefenstette,C. J. Hailey,M. Koss,Stephanie M. LaMassa,K. K. Madsen,S. Puccetti,Cristian Saez,C. M. Urry,Daniel R. Wik,William Zhang +37 more
TL;DR: In this paper, the authors present the first direct measurements of the rest-frame 10-40 keV X-ray luminosity function of active galactic nuclei (AGNs) based on a sample of 94 sources at 0.1 < z < 3, selected at 8-24 keV energies from sources in the Nuclear Spectroscopic Telescope Array (NuSTAR) extragalactic survey program.