Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Ian R. Tuohy"'
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 256:252-260
Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c9c425cfda3ae02a1bc01bc780d99bb
https://doi.org/10.1093/mnras/256.2.252
https://doi.org/10.1093/mnras/256.2.252
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 255:545-556
The nature of discrete sources contributing to the extragalactic X-ray background (XRB) in the energy range ∼0.1-3 keV has been investigated via optical identifications based on positional coincidence and spectroscopy. The results presented here ad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f07926ef5af0b6a6e538e44700c875
https://doi.org/10.1093/mnras/255.4.545
https://doi.org/10.1093/mnras/255.4.545
Autor:
Dayal Wickramasinghe, Jeremy Bailey, S. M. A. Meggitt, Ian R. Tuohy, Lilia Ferrario, J. H. Hough
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 251:28-45
We present high signal-to-noise ratio phase dependent linear polarization and intensity data on AM Herculis which show the presence of structured linear pulses in the optical and near IR regions. The data have been analysed to construct a detailed mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::de6b7c8a3a53a10eb26d7a2c3429b61b
https://doi.org/10.1093/mnras/251.1.28
https://doi.org/10.1093/mnras/251.1.28
Autor:
Ian R. Tuohy
Publikováno v:
14th AIAA/AHI Space Planes and Hypersonic Systems and Technologies Conference.
The Woomera Test Facility (WTF) in South Australia offers extensive capabilities in support of hypersonic flight testing. The vast range area, comprising 127,000 square kilometers of sparsely populated land and overlying restricted airspace, can acco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b94f449fed93248dcce0af7552e86de
https://doi.org/10.2514/6.2006-7909
https://doi.org/10.2514/6.2006-7909
Autor:
G. Tagliaferri, P. G. Murdin, Ian R. Tuohy, Klaus Beuermann, G. Branduardi-Raymont, P. Giommi, H.-C. Thomas, K. O. Mason, R. Brissenden
Publikováno v:
BL Lac Objects ISBN: 3540513892
Two new BL Lacertae objects, located within the error boxes of hard X-ray sources, have been discovered during a systematic program to identify a large sample of EXOSAT serendipitous sources. Both hard X-ray sources were detected during the HEAD 1 wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a92fae03fc136682d8beaf1e59f7ad2
https://doi.org/10.1007/bfb0031170
https://doi.org/10.1007/bfb0031170
Autor:
P. Giomm, Guy G. Pooley, K. Beuermann, P. Murdins, K. O. Mason, U. Grasers, Ian R. Tuohy, G. Branduardi-Raymont, R. Brissenden, H.-C. Thomas, G. Tagliaferri
Publikováno v:
BL Lac Objects ISBN: 3540513892
Using a sample of 11 X-ray selected BL Lacertae objects extracted from the EXOSAT High Galactic Latitude Survey we derive the LogN-LogS relation of BL Lacs and we compare it with the results obtained with other X-ray surveys. All EXOSAT BL Lacs are c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d93ac360806af33a7f4bc9880ca878a2
https://doi.org/10.1007/bfb0031167
https://doi.org/10.1007/bfb0031167
Autor:
Ron Remillard, Ian R. Tuohy, Paul Hertz, Eric D. Feigelson, Daniel A. Schwartz, R. J. V. Brissenden
Publikováno v:
BL Lac Objects ISBN: 3540513892
We discuss 20 X-ray sources in the NRL HEAO-1 catalog which we identify with bright, hard X-ray emitting BL Lac objects. We discuss the definition and process of identification of these objects. We deduce limits to the surface density of > 0.0007 deg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c7d6d4516014ec57d76921271daf735
https://doi.org/10.1007/bfb0031165
https://doi.org/10.1007/bfb0031165
Autor:
H. V. Bradt, Ian R. Tuohy, D. A. H. Buckley, A. Silber, David A. Schwartz, Ron Remillard, B. A. Stroozas, Roger Brissenden
Publikováno v:
The Astrophysical Journal. 428:785
We report the discovery of two cataclysmic variables located with the assistance of X-ray positions from the HEAO 1 Modulation Collimator and the Large-Area Sky Survey. Each case is distinguished by evidence of two periodic modulations that appear to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8c531cc20e7b0fe49fbfdbf72f31c76
https://doi.org/10.1086/174287
https://doi.org/10.1086/174287
Autor:
David A. Schwartz, H. V. Bradt, W. Roberts, D. A. H. Buckley, Ian R. Tuohy, R. Brissenden, B. Stroozas, R. A. Remillard
Publikováno v:
The Astronomical Journal. 105:2079
We report 22 emission-line AGN as bright, hard X-ray sources. All of them appear to be new classifications with the exception of one peculiar IRAS source which is a known quasar and has no published spectrum. This sample exhibits a rich diversity in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8fe85af11966fe6674670570092c8df9
https://doi.org/10.1086/116585
https://doi.org/10.1086/116585
Publikováno v:
The Astrophysical Journal. 376:424
The identification of the bright, hard X-ray source 4U 0009-33 = 3A 2356-341 = 1H 2355-350 is presently confirmed on the basis of Exosat CMA detector measurements of position and spatial extent. On the basis of these X-ray observations, a strong accr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66a657f6ff9d55c7d5ed8e4aefbd16e0
https://doi.org/10.1086/170291
https://doi.org/10.1086/170291