Zobrazeno 1 - 10 of 145 pro vyhledávání: '"G C, Palumbo"'
1
Warm absorber energetics in broad-line radio galaxies
Autor: Paola Grandi, Eleonora Torresi, Giorgio G. C. Palumbo, Elisa Costantini
Publikováno v: Monthly Notices of the Royal Astronomical Society. 419:321-329
We review the soft X-ray properties of 3C 390.3, 3C 120, 3C 382 and 3C 445, the only Broad Line Radio Galaxies (BLRG) for which good quality gratings data are currently available. The XMM-Newton/RGS data of 3C 390.3 and 3C 120 were re-analyzed search
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1e9ba7547af4491f612aba04640030ab
https://doi.org/10.1111/j.1365-2966.2011.19694.x
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2
From (under)ground to space
Autor: Giorgio G. C. Palumbo
Publikováno v: Nuclear Physics B - Proceedings Supplements. :34-49
The first attempt by Italian scientists to carry on Astrophysical observations from Space can be traced back to the early 60ʼs just after the launch of the first satellites. Dominated by Physicists for decades, slowly space astrophysics has become o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c1677be13802b253965ae92a4533fd84
https://doi.org/10.1016/j.nuclphysbps.2011.03.006
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3
First high-resolution detection of a warm absorber in the Broad Line Radio Galaxy 3C 382
Autor: Giorgio G. C. Palumbo, Anna Lia Longinotti, Matteo Guainazzi, A. A. Nucita, Eleonora Torresi, Francesco Tombesi, Paola Grandi
Publikováno v: Monthly Notices of the Royal Astronomical Society: Letters. 401:L10-L14
Recent high-resolution measurements suggest that the soft X-ray spectrum of obscured Radio Galaxies (RG) exhibits signatures of photoionised gas (e.g. 3C 445 and 3C 33) similar to those observed in radio-quiet obscured Active Galactic Nuclei (AGN). W
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b18ad91af3f87ecd5bf46d15e432f09d
https://doi.org/10.1111/j.1745-3933.2009.00773.x
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5
The Ultra Luminous Infrared Galaxy Mrk 231: new clues from BeppoSAX and XMM-Newton
Autor: Paola Marziani, M. Cappi, Giorgio G. C. Palumbo, Loredana Bassani, Guido Risaliti, Alberto Franceschini, M. Salvati, Enrico Piconcelli, V. Braito, K. Iwasawa, Massimo Persic, Paola Severgnini, R. Della Ceca, Giuseppe Malaguti
Publikováno v: Nuclear Physics B - Proceedings Supplements. 132:153-156
We present BeppoSAX and XMM-Newton observations of Mrk 231. These observations and in particular the BeppoSAX PDS data allowed us to unveil, for the first time, the highly absorbed (NH∼2×1024 cm−2) AGN component. We find that: a) the AGN powerin
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::db684a9e7175c470b9ccaf711a12cb2f
https://doi.org/10.1016/j.nuclphysbps.2004.04.021
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6
The INTEGRAL mission
Autor: G. Vedrenne, A. J. Dean, W. Hermsen, Niels Lund, Christoph Winkler, Bonnard J. Teegarden, Neil Gehrels, P. Ubertini, R. A. Sunyaev, J. A. Paul, A. Giménez, J. M. Mas-Hesse, V. Schönfelder, Thierry J.-L. Courvoisier, G. Di Cocco, Francois Lebrun, J. P. Roques, S. A. Grebenev, Giorgio G. C. Palumbo, Herbert W. Schnopper
Publikováno v: Astronomy & Astrophysics. 411:L1-L6
The ESA observatory INTEGRAL (International Gamma-Ray Astrophysics Laboratory) is dedicated to the fine spectroscopy (2.5 keV FWHM @ 1 MeV) and fine imaging (angular resolution: 12 arcmin FWHM) of celestial gamma-ray sources in the energy range 15 ke
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a49fddfe2b404e1063ec15117a69cb96
https://doi.org/10.1051/0004-6361:20031288
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7
The Italian program for small satellites
Autor: G. G. C. Palumbo, Giovanni F. Bignami
Publikováno v: Advances in Space Research. 31:327-330
In the framework of a five year plan the Italian Space Agency has started a national program of small scientific satellites. The first two, AGILE and DAVID are already at an advanced stage of development. The former is dedicated to Gamma Ray Astrophy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::083a30253ff016930898fc65ad71a7d4
https://doi.org/10.1016/s0273-1177(02)00621-x
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8
An Enshrouded Active Galactic Nucleus in the Merging Starburst System Arp 299 Revealed by [CLC][ITAL]BeppoSAX[/ITAL][/CLC]
Autor: M. Cappi, M. Dadina, L. Maraschi, Loredana Bassani, Massimo Persic, P. O. Petrucci, Lucía Ballo, Giuseppe Malaguti, R. Della Ceca, Giorgio G. C. Palumbo, Alberto Franceschini, Fabrizio Tavecchio
Publikováno v: The Astrophysical Journal. 581:L9-L13
Using a long (150 ks) broadband (0.1-40 keV) BeppoSAX observation of the merging starburst system Arp 299 (=IC 694 + NGC 3690), we found the first unambiguous evidence of the presence of a deeply buried (NH 2.5 × 1024 cm-2) active galactic nucleus (
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dacfc4cc6d7ff18d067c3ebcdfbe258e
https://doi.org/10.1086/345925
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10
Objectively selected samples of galaxy multiplets: an analysis of observed properties
Autor: Paola Focardi, G. G. C. Palumbo, B. Kelm
Publikováno v: International Astronomical Union Colloquium. 174:90-99
A method of searching for multiplets in a large catalogue of galaxies with measured redshifts is described. Compact Groups samples having different local and global characteristics are generated when the algorithm is applied to ZCAT catalogue. Both l
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::244fa708bc02335323309f251581e350
https://doi.org/10.1017/s0252921100054816
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