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The spectrum of the extragalactic X-ray background below 3 keV

Autor: R. S. Warwick, C. R. Barber

Publikováno v: Monthly Notices of the Royal Astronomical Society. 267:270-282

We present the results of a ROSAT XRT/PSPC observation of a field near the North Galactic Pole containing the interacting galaxy pair NGC 4725/4747. A tidal H I plume emanating from NGC 4747 and also the extended HI disc in NGC 4725 represent foregro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f324297dd00cc2bb7ecf159e86f49d0a
https://doi.org/10.1093/mnras/267.2.270

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The EUV source population and the local bubble

Autor: C. R. Barber, S. T. Hodgkin, R. S. Warwick, John P. Pye

Publikováno v: Monthly Notices of the Royal Astronomical Society. 262:289-300

A catalogue of 384 relatively bright sources detected in the first-ever all-sky survey in the extreme ultraviolet, carried out by the UK Wide Field Camera (WFC) on ROSAT has recently been published. We have made a detailed study of the differential s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f8e4e6b13868053a56600467348db5b
https://doi.org/10.1093/mnras/262.2.289

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The ROSAT Wide Field Camera all-sky survey of extreme-ultraviolet sources – I. The Bright Source Catalogue

Autor: A. M. Cruise, David Allan, Coel Hellier, A. P. Willmore, Steven Sembay, Trevor J. Ponman, I. Georgantopoulos, Stefan Rosén, R. J. Vallance, Alan A. Wells, T. J. Sumner, G. E. Bromage, M. J. Ricketts, P. A. McGale, Anne E. Sansom, John P. Pye, J. L. Culhane, D. Bertram, Richard Lieu, Richard Willingale, S. T. Hodgkin, Martin A. Barstow, E. M. Puchnarewicz, G. A. Willoughby, D. Wonnacott, Graziella Branduardi-Raymont, E. Dunford, D. O. Donoghue, M. Denby, C. Lloyd, Clive G. Page, B. C. Stewart, R. D. Jeffries, C. V. Goodall, Barry Kellett, Richard E. Cole, G. E. C. Brebner, David A. H. Buckley, M. G. Watson, R. S. Warwick, G. S. Pankiewicz, M. Courtier, A. W. Harris, C. R. Barber, S. D. Sidher, Ken Pounds, B. J. Kent, Keith O. Mason, Mark R. Sims, J. J. Quenby, J. A. Gourlay, P. M. Gondhalekar, L. Matthews, B. J. M. Hassall, J. P. D. Mittaz, C. D. Pike

Publikováno v: Monthly Notices of the Royal Astronomical Society. 260:77-102

The first all-sky survey for cosmic sources of extreme-ultraviolet radiation has been carried out with the UK Wide Field Camera on ROSAT. A first reduction of the survey data has yielded a catalogue of 383 relatively bright EUV sources, forming the W

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0af01c57ed66dbb3ba67d728631489d2
https://doi.org/10.1093/mnras/260.1.77

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Features of the Soft X-ray Background and Implications for the EUV Background

Autor: R. S. Warwick, C. R. Barber

Publikováno v: Astrophysics in the Extreme Ultraviolet ISBN: 9789401057646

A series of eight overlapping ROSAT PSPC observations situated in the Lockman hole region have been analysed in the 0.1 – 0.4 keV band. The total exposure of ∼ 137 ks and the ultra-low interstellar column density make the data extremely suitable

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b9b185c44efacc220025e1fe1ad8fe7a
https://doi.org/10.1007/978-94-011-3988-5_47

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Inverse Compton X-Rays from Giant Radio Galaxies

Autor: C. R. Barber, D. Tsakiris, J. P. Leahy, R. G. Strom

Publikováno v: Extragalactic Radio Sources ISBN: 9780792341222

The X-ray radiation from inverse Compton scattering of CMB photons by the relativistic electrons in ‘radio’ lobes provides a direct measure of their column density at a known energy, unlike synchrotron radiation which also depends on the unknown

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e158d94187e448b55807c1b5d5d3fc6a
https://doi.org/10.1007/978-94-009-0295-4_93

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