Zobrazeno 1 - 10
of 38
pro vyhledávání: '"T. Aldcroft"'
Autor:
T. Aldcroft, Dong-Woo Kim, John D. Silverman, Paul J. Green, Diana M Worrall, Belinda Jane Wilkes, David A. Schwartz, Mark Birkinshaw, Wayne A. Barkhouse, Margarita Karovska
Publikováno v:
University of Bristol-PURE
The Chandra Multiwavelength Project (ChaMP) has discovered a jet-like structure associated with a newly recognized QSO at redshift z=1.866. The system was 9.4 arcmin off-axis during an observation of 3C 207. Although significantly distorted by the mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::120ed1923f06c893ac1a04f1ed83b4a2
https://doi.org/10.1086/420843
https://doi.org/10.1086/420843
Autor:
David A. Schwartz, R. P. Kraft, Andrea Prestwich, C. Jones, D. Jerius, Ethan J. Schreier, S. S. Murray, Ian N. Evans, Almus T. Kenter, G. Fabbiano, Margarita Karovska, T. Aldcroft, Dong-Woo Kim, M. Elvis, F. A. Primini, Michael Juda, W. Cui, Takashi Isobe, Terrance J. Gaetz
Publikováno v:
Symposium - International Astronomical Union. 205:66-69
Centaurus A (NGC 5128) is a giant early-type galaxy containing the nearest (at 3.5 Mpc) radio-bright Active Galactic Nucleus (AGN). Cen A was observed with the High Resolution Camera (HRC) on the Chandra X-ray Observatory on several occasions since t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4693f4290a58ce82f52391df7f13f936
https://doi.org/10.1017/s0074180900220445
https://doi.org/10.1017/s0074180900220445
Autor:
Yoshi Taniguchi, E. Le Floc'h, M. Bolzonella, G. Hasinger, S. de la Torre, Heng Hao, Katarina Kovac, John D. Silverman, J. P. Kneib, Marco Scodeggio, Nico Cappelluti, Roberto Gilli, L. Tresse, Andrea Comastri, Anton M. Koekemoer, S. Bardelli, Ezequiel Treister, M. Elvis, Angela Bongiorno, S. J. Lilly, Christian Maier, Andrea Merloni, B. Garilli, Y. Peng, H. J. McCracken, Elisabeta Lusso, Nick Scoville, F. Lamareille, Eva Schinnerer, Karina Caputi, D. Vergani, A. Cappi, Mara Salvato, Vincenzo Mainieri, J-F. Leborgne, M. Zamojski, G. Zamorani, Peter Capak, L. de Ravel, E. Zucca, K. Iwasawa, T. Contini, Cristian Vignali, O. Le Fevre, P. Kampczyk, A. Iovino, Marcella Brusa, Antonella Fruscione, D. B. Sanders, Knud Jahnke, Enrique Perez-Montero, L. A. M. Tasca, Fabrizio Fiore, J. Kartaltepe, C. Knobel, Chris Impey, A. Finoguenov, Masaomi Tanaka, Francesca Civano, V. Le Brun, O. Ilbert, H. Aussel, T. Aldcroft, Takamitsu Miyaji, R. Pello, M. Mignoli, J. D. Trump
Publikováno v:
apj
apj, 2010, 716, pp.348-369. ⟨10.1088/0004-637X/716/1/348⟩
apj, 2010, 716, pp.348-369. ⟨10.1088/0004-637X/716/1/348⟩
We report the final optical identifications of the medium-depth (~60 ksec), contiguous (2 deg^2) XMM-Newton survey of the COSMOS field. XMM-Newton has detected ~800 X-ray sources down to limiting fluxes of ~5x10^{-16}, ~3x10^{-15}, and ~7x10^{-15} er
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03aaa05bb0ebe617b3f667d09ba3e3dc
https://hal.archives-ouvertes.fr/hal-01428182
https://hal.archives-ouvertes.fr/hal-01428182
Autor:
G. Lanzuisi, F. Civano, M. Elvis, T. Aldcroft, A. Fruscione, F. Fiore, V. Mainieri, C. Vignali, A. Comastri, L. Angelini, M. Cappi
We present a detailed X‐ray spectral analysis of 401 bright sources in the Chandra‐COSMOS catalogue with >80 net counts in the 0.5–7 keV band. For 294 sources, with available XMM‐Newton spectra with >80 net counts, we performed an indipendent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::923e2b8a2db6ba3185125c8c8129e662
http://hdl.handle.net/11585/90858
http://hdl.handle.net/11585/90858
Autor:
Simonetta Puccetti, C. Vignali, G. Hasinger, A. Iovino, Richard E. Griffiths, Patrick L. Shopbell, Marcella Brusa, C. M. Urry, Anton M. Koekemoer, Roberto Gilli, Nico Cappelluti, Mara Salvato, Hans Boehringer, Andrea Comastri, M. Elvis, A. Finoguenov, T. Aldcroft, Francesca Civano, Vincenzo Mainieri, John D. Silverman, Takamitsu Miyaji, Antonella Fruscione, Fabrizio Fiore, Hermann Brunner, Nick Scoville, Luigi Guzzo, G. Zamorani
The COSMOS survey is a multiwavelength survey aimed to study the evolution of galaxies, AGN and the large scale structure. The XMM-COSMOS is a deep X-ray survey over the full 2 deg2 of the COSMOS area. It consists of 55 XMM-Newton pointings for a tot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aaa18ca7f90b7174e7990ed2e5c6ac90
https://resolver.caltech.edu/CaltechAUTHORS:20090812-132642949
https://resolver.caltech.edu/CaltechAUTHORS:20090812-132642949
Autor:
E. R. Colmenero, Vinay L. Kashyap, Eric M. Schlegel, John D. Silverman, Wayne A. Barkhouse, Minjin Kim, Craig S. Anderson, Harvey Tananbaum, T. Aldcroft, Dong-Woo Kim, Zeljko Ivezic, A. Mossman, Belinda Jane Wilkes, Paul J. Green
(abridged) We have investigated 136 Chandra extragalactic sources without broad optical emission lines, including 93 galaxies with narrow emission lines (NELG) and 43 with only absorption lines (ALG). Based on fx/fo, Lx, X-ray spectral hardness and o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a3e21d98a94dba34ac2d354f5372cc
http://arxiv.org/abs/astro-ph/0512338
http://arxiv.org/abs/astro-ph/0512338
Autor:
T. Aldcroft, Paul J. Green
We have obtained a 110 ksec Chandra ACIS-S exposure of UM425, a pair of QSOs at z=1.47 separated by 6.5 arcsec, which show remarkably similar emission and broad absorption line (BAL) profiles in the optical/UV. Our 5000 count X-ray spectrum of UM425A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::def15fd397a1b20605d7d3d32a66fa58
http://arxiv.org/abs/astro-ph/0304401
http://arxiv.org/abs/astro-ph/0304401
Autor:
M. Trichas, Marcella Brusa, Roberto Gilli, Mara Salvato, Angela Bongiorno, M. Elvis, Enrico Piconcelli, Giorgio Lanzuisi, Andrea Comastri, Laura Blecha, Avi Loeb, C. Vignali, S. Komossa, T. Aldcroft, Francesca Civano, Vincenzo Mainieri, Anton M. Koekemoer, Antonella Fruscione
Publikováno v:
The Astrophysical Journal. 752:49
We present Chandra High Resolution Camera observations of CID-42, a candidate recoiling supermassive black hole (SMBH) at z = 0.359 in the COSMOS survey. CID-42 shows two optical compact sources resolved in the HST/ACS image embedded in the same gala
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e412b5cbf13ac6e558cc5c33b8916a49
https://doi.org/10.1088/0004-637x/752/1/49
https://doi.org/10.1088/0004-637x/752/1/49
Publikováno v:
International Astronomical Union Colloquium. 163:681-682
The physical origin of associated absorption lines (zabs ≈ zqso) which are observed in radio-loud quasar is generally not well understood. Two observable properties, line variability and quasar optical polarization, can serve to constrain the possi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b63f4c8dbce32540e38c684658e9ee4
https://doi.org/10.1017/s0252921100043396
https://doi.org/10.1017/s0252921100043396
Publikováno v:
Proceedings of the third conference on Hypercube concurrent computers and applications.
We describe the solution of linear systems of equations, Ax = b, on distributed-memory concurrent computers whose interconnect topology contains a two-dimensional mesh. A is assumed to be an M×M banded matrix. The problem is generalized to the case
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e16aa02256ae8e0b8253a923fb40813
https://doi.org/10.1145/63047.63124
https://doi.org/10.1145/63047.63124