Zobrazeno 1 - 10
of 64
pro vyhledávání: '"R. G. Cruddace"'
Publikováno v:
Advances in Space Research. 38:1501-1508
The bulk of radiation from million-degree plasmas is emitted at EUV wavelengths. Such plasmas are ubiquitous in astrophysics, and examples include the atmospheres of white dwarfs, accretion phenomena in cataclysmic variables (CVs) and some active gal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eb649e3902f3b231414b27d77fdbeda
https://doi.org/10.1016/j.asr.2006.02.043
https://doi.org/10.1016/j.asr.2006.02.043
Autor:
Nigel Bannister, M. P. Kowalski, Daryl J. Yentis, Jonathan S. Lapington, Sonja Schuh, J. A. Tandy, R. G. Cruddace, Martin A. Barstow, Troy W. Barbee, Ivan Hubeny, Stefan Dreizler
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 362:1273-1278
We have continued our detailed analysis of the high-resolution (R = 4000) spectroscopic observation of the DA white dwarf G191-B2B, obtained by the Joint Astrophysical Plasma-dynamic Experiment (J-PEX) normal incidence sounding rocket-borne telescope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea16f070c3965483931f677812560786
https://doi.org/10.1111/j.1365-2966.2005.09394.x
https://doi.org/10.1111/j.1365-2966.2005.09394.x
Autor:
P. A. Shaver, Hans Boehringer, R. G. Cruddace, Chris A. Collins, H. T. MacGillivray, S. De Grandi, Wolfgang Voges, G. Chincarini, Doris M. Neumann, S. Schindler, Luigi Guzzo, Peter Schuecker
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 319:939-948
We report the results of the spatial two-point correlation function xi(r) for the new X-ray galaxy cluster survey REFLEX, which comprises of 452 X-ray selected clusters (449 with redshifts) detected by the ROSAT satellite during the ROSAT All-Sky-Sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f02bd66238cc5420f63459c0ce0fbd8
https://doi.org/10.1046/j.1365-8711.2000.03918.x
https://doi.org/10.1046/j.1365-8711.2000.03918.x
Autor:
Peter Schuecker, Sabine Schindler, Klaus Mecke, S. De Grandi, Martin Kerscher, Chris A. Collins, R. G. Cruddace, H. B\\'ohringer, Luigi Guzzo
Publikováno v:
Astronomy & Astrophysics. 377:1-16
In order to quantify higher-order correlations of the galaxy cluster distribution we use a complete family of additive measures which give scale-dependent morphological information. Minkowski functionals can be expressed analytically in terms of inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d2a805d644d48d64859725f0cccc914
https://doi.org/10.1051/0004-6361:20011063
https://doi.org/10.1051/0004-6361:20011063
Autor:
Chris A. Collins, S. Molendi, Luigi Guzzo, Wolfgang Voges, Doris M. Neumann, Peter Schuecker, S. De Grandi, G. Chincarini, H. Böhringer, R. G. Cruddace, S. Schindler
Publikováno v:
Scopus-Elsevier
We present the X-ray luminosity function (XLF) for clusters of galaxies derived from the RASS1 Bright Sample. The sample, selected from the ROSAT All-Sky Survey in a region of 2.5 sr within the southern Galactic cap, contains 130 clusters with flux l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::009d6ceaaa92bb8056176f6e559b58ad
https://doi.org/10.1086/311900
https://doi.org/10.1086/311900
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. 80:473-476
A spherical holographic ion-etched diffraction grating with low-blaze angle has been purchased for the purpose of vendor evaluation. We present the results of surface measurements made on the bare grating substrate using an atomic force microscope. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aea5be9ff60dc88f3120aa853b2b7562
https://doi.org/10.1016/0368-2048(96)03019-8
https://doi.org/10.1016/0368-2048(96)03019-8
Publikováno v:
Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray.
The EUV waveband includes critical spectral features containing diagnostic information often not available at other wavelengths, and the bulk of radiation from million degree plasmas is emitted in the EUV. Such plasmas are ubiquitous, and examples in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d25d62db949890673bfb9d4fd814fe3
https://doi.org/10.1117/12.857284
https://doi.org/10.1117/12.857284
Autor:
M. P. Kowalski, M. A. Barstow, K. S. Wood, D. J. Yentis, G. G. Fritz, J. S. Lapington, T. W. Barbee, R. G. Cruddace, Klaus Werner, T. Rauch
Publikováno v:
AIP Conference Proceedings.
We report the first high‐resolution (R = 4000) spectroscopic observation of the binary DA white dwarf Feige 24 in the extreme‐ultraviolet band 220–250A. A stellar atmosphere model assuming a homogeneous element distribution yields a best fit to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d46c2e5a6b3846514f8e73ba591d8b70
https://doi.org/10.1063/1.3527881
https://doi.org/10.1063/1.3527881
Autor:
D. de Martino, M. P. Kowalski, Andrew Collier Cameron, G. Del Zanna, J. H. M. M. Schmitt, Carole Jordan, A. Cassatella, Matthew R. Burleigh, Isabella Pagano, Sarah A. Matthews, R. G. Cruddace, Franck Delmotte, N. J. Bannister, K. S. Wood, Norbert Kappelmann, C.S. Jeffery, Frédéric Auchère, K. J. H. Phillips, M.F. Bode, Klaus Werner, J. G. Doyle, Rosine Lallement, Boris T. Gaensicke, B. Y. Welsh, Marie-Françoise Ravet-Krill, Brad K. Gibson, G. E. Bromage, Martin A. Barstow, Jonathan S. Lapington, Marina Orio, Emanuele Pace
Publikováno v:
Experimental Astronomy
Experimental Astronomy, 2009, 23 (1), pp.169-191. ⟨10.1007/s10686-008-9105-x⟩
Experimental Astronomy, Springer Link, 2009, 23 (1), pp.169-191. ⟨10.1007/s10686-008-9105-x⟩
Astrophysics and Space Science
Astrophysics and Space Science, 2009, 320 (1-3), pp.231-238. ⟨10.1007/s10509-008-9792-9⟩
Astrophysics and Space Science, Springer Verlag, 2009, 320 (1-3), pp.231-238. ⟨10.1007/s10509-008-9792-9⟩
Experimental Astronomy, 2009, 23 (1), pp.169-191. ⟨10.1007/s10686-008-9105-x⟩
Experimental Astronomy, Springer Link, 2009, 23 (1), pp.169-191. ⟨10.1007/s10686-008-9105-x⟩
Astrophysics and Space Science
Astrophysics and Space Science, 2009, 320 (1-3), pp.231-238. ⟨10.1007/s10509-008-9792-9⟩
Astrophysics and Space Science, Springer Verlag, 2009, 320 (1-3), pp.231-238. ⟨10.1007/s10509-008-9792-9⟩
This paper describes a proposed high resolution soft X-ray and Extreme Ultraviolet (EUV) spectroscopy mission to carry out a survey of Stellar and Galactic Environments (SAGE). The payload is based on novel diffraction grating technology which has al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d769dd2cbef847d2f1e82d56d308043
https://hal.science/hal-00362878
https://hal.science/hal-00362878
Autor:
M. P. Kowalski, K. S. Wood, M. A. Barstow, R. G. Cruddace, Randall K. Smith, Steven L. Snowden, K. D. Kuntz
Publikováno v:
AIP Conference Proceedings.
Interstellar helium can be observed directly only in the Extreme Ultraviolet (EUV) waveband. However, high sensitivity and spectral resolution are required to disentangle the He II Lyman series lines from the many heavier element lines found in the c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a555618f485237e7da689294856e12f
https://doi.org/10.1063/1.3211807
https://doi.org/10.1063/1.3211807