Zobrazeno 1 - 10
of 39
pro vyhledávání: '"Steenbrugge, Katrien C."'
We present the second extensive study of the coronal line variability in an active galaxy. Our data set for the well-studied Seyfert galaxy NGC 5548 consists of five epochs of quasi-simultaneous optical and near-infrared spectroscopy spanning a perio
Externí odkaz:
http://arxiv.org/abs/1509.05851
We present the first extensive study of the coronal line variability in an active galaxy. Our data set for the nearby source NGC 4151 consists of six epochs of quasi-simultaneous optical and near-infrared spectroscopy spanning a period of about eight
Externí odkaz:
http://arxiv.org/abs/1501.02928
Autor:
Mehdipour, Missagh, Branduardi-Raymont, Graziella, Kaastra, Jelle S., Petrucci, Pierre-Olivier, Kriss, Gerard A., Ponti, Gabriele, Blustin, Alexander J., Paltani, Stephane, Cappi, Massimo, Detmers, Rob G., Steenbrugge, Katrien C.
We present the analysis of XMM-Newton and Swift optical-UV and X-ray observations of the Seyfert-1/QSO Mrk 509, part of an unprecedented multi-wavelength campaign, investigating the nuclear environment of this AGN. The XMM-Newton data are from a seri
Externí odkaz:
http://arxiv.org/abs/1107.0659
Autor:
Schawinski, Kevin, Justham, Stephen, Wolf, Christian, Podsiadlowski, Philipp, Sullivan, Mark, Steenbrugge, Katrien C., Bell, Tony, Roeser, Hermann-Josef, Walker, Emma, Astier, Pierre, Balam, Dave, Balland, Christophe, Carlberg, Ray, Conley, Alex, Fouchez, Dominque, Guy, Julien, Hardin, Delphine, Hook, Isobel, Howell, Andy, Pain, Reynald, Perrett, Kathy, Pritchet, Chris, Regnault, Nicolas, Yi, Sukyoung K.
Publikováno v:
Science 11 July 2008: Vol. 321. no. 5886, pp. 223 - 226
Massive stars undergo a violent death when the supply of nuclear fuel in their cores is exhausted, resulting in a catastrophic "core-collapse" supernova. Such events are usually only detected at least a few days after the star has exploded. Observati
Externí odkaz:
http://arxiv.org/abs/0803.3596
Autor:
Arav, Nahum, Gabel, Jack R., Korista, Kirk T., Kaastra, Jelle S., Kriss, Gerard A., Behar, Ehud, Costantini, Elisa, Gaskell, C. Martin, Laor, Ari, Kodituwakku, Nalaka, Proga, Daniel, Sako, Masao, Scott, Jennifer E., Steenbrugge, Katrien C.
We present the first reliable determination of chemical abundances in an AGN outflow. The abundances are extracted from the deep and simultaneous FUSE and HST/STIS observations of Mrk 279. This data set is exceptional for its high signal-to-noise, un
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611928
Autor:
Gabel, Jack R., Arav, Nahum, Kaastra, Jelle S., Kriss, Gerard A., Behar, Ehud, Costantini, Elisa, Gaskell, C. Martin, Korista, Kirk T., Laor, Ari, Paerels, Frits, Proga, Daniel, Quijano, Jessica Kim, Sako, Masao, Scott, Jennifer E., Steenbrugge, Katrien C.
Publikováno v:
Astrophys.J. 623 (2005) 85-98
We present an analysis of the intrinsic UV absorption in the Seyfert 1 galaxy Mrk 279 based on simultaneous long observations with the Hubble Space Telescope (41 ks) and the Far Ultraviolet Spectroscopic Explorer (91 ks). To extract the line-of-sight
Externí odkaz:
http://arxiv.org/abs/astro-ph/0501524
Autor:
Behar, Ehud, Rasmussen, Andrew P., Blustin, Alexander J., Sako, Masao, Kahn, Steven M., Kaastra, Jelle S., Branduardi-Raymont, Graziella, Steenbrugge, Katrien C.
Publikováno v:
Astrophys.J.598:232-241,2003
A long 280 ks observation of the Seyfert 1 galaxy NGC 3783 with XMM-Newton is reported. We focus on the oxygen line complex between 17 and 24 A as measured with the RGS spectrometers. Accurate absorption column densities and emission line fluxes are
Externí odkaz:
http://arxiv.org/abs/astro-ph/0307467
Autor:
Steenbrugge, Katrien C.1 kcs@astro.ox.ac.uk, Blundell, Katherine M.2
Publikováno v:
Astrophysics & Space Science. Sep2007, Vol. 311 Issue 1-3, p323-327. 5p. 2 Color Photographs, 1 Chart, 1 Graph.
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