Zobrazeno 1 - 8
of 8
pro vyhledávání: '"R. Hank Donnelly"'
Publikováno v:
The Astrophysical Journal. 529:692-697
A temperature map of the A3266 galaxy cluster has been derived from the ASCA GIS observations. It shows an asymmetric pattern of heating indicative of an ongoing merger between a group sized sub-cluster and the main cluster. The galaxy distribution s
Autor:
R. Hank Donnelly, Marat Gilfanov, William R. Forman, Christine Jones, Maxim Markevitch, Eugene Churazov, Laurence P. David
Publikováno v:
The Astrophysical Journal. 500:138-146
We study the temperature structure of the rich cluster of galaxies Abell 1367 using two independent methods of correcting for the ASCA PSF. The results of the two methods are in excellent agreement and give solid evidence of a strong and localized sh
Autor:
R. Hank Donnelly, William R. Forman, Jennifer Posson-Brown, Christine Jones, Somak Raychaudhury
We present the X-ray point source population in the nearby Virgo elliptical galaxy NGC 4636 from 3 Chandra/ACIS observations, totaling 193 ks, taken over 3 years. Using wavelet decomposition, we detect 318 point sources. Here, we use a subset of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::908cf639091d11545748b8844ec0ec33
Autor:
Saurabh Jha, Robert P. Kirshner, Peter Challis, Peter M. Garnavich, Thomas Matheson, Alicia M. Soderberg, Genevieve J. M. Graves, Malcolm Hicken, João F. Alves, Héctor G. Arce, Zoltan Balog, Pauline Barmby, Elizabeth J. Barton, Perry Berlind, Ann E. Bragg, César Briceño, Warren R. Brown, James H. Buckley, Nelson Caldwell, Michael L. Calkins, Barbara J. Carter, Kristi Dendy Concannon, R. Hank Donnelly, Kristoffer A. Eriksen, Daniel G. Fabricant, Emilio E. Falco, Fabrizio Fiore, Michael R. Garcia, Mercedes Gómez, Norman A. Grogin, Ted Groner, Paul J. Groot, Karl E. Haisch, Jr., Lee Hartmann, Carl W. Hergenrother, Matthew J. Holman, John P. Huchra, Ray Jayawardhana, Diab Jerius, Sheila J. Kannappan, Dong-Woo Kim, Jan T. Kleyna, Christopher S. Kochanek, Daniel M. Koranyi, Martin Krockenberger, Charles J. Lada, Kevin L. Luhman, Jane X. Luu, Lucas M. Macri, Jeff A. Mader, Andisheh Mahdavi, Massimo Marengo, Brian G. Marsden, Brian A. McLeod, Brian R. McNamara, S. Thomas Megeath, Dan Moraru, Amy E. Mossman, August A. Muench, Jose A. Muñoz, James Muzerolle, Orlando Naranjo, Kristin Nelson-Patel, Michael A. Pahre, Brian M. Patten, James Peters, Wayne Peters, John C. Raymond, Kenneth Rines, Rudolph E. Schild, Gregory J. Sobczak, Timothy B. Spahr, John R. Stauffer, Robert P. Stefanik, Andrew H. Szentgyorgyi, Eric V. Tollestrup, Petri Väisänen, Alexey Vikhlinin, Zhong Wang, S. P. Willner, Scott J. Wolk, Joseph M. Zajac, Ping Zhao, Krzysztof Z. Stanek
Publikováno v:
Astronomical Journal, 131, 527-554
Astronomical Journal, 131, 1, pp. 527-554
Astronomical Journal, 131, 1, pp. 527-554
We present UBVRI photometry of 44 type-Ia supernovae (SN Ia) observed from 1997 to 2001 as part of a continuing monitoring campaign at the Fred Lawrence Whipple Observatory of the Harvard-Smithsonian Center for Astrophysics. The data set comprises 21
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2e2d39da59e761b658a50bf65e84497
http://hdl.handle.net/2066/34664
http://hdl.handle.net/2066/34664
Autor:
Daniel J. Patnaude, Stephen S. Murray, Almus T. Kenter, Martin V. Zombeck, R. Hank Donnelly, Ronald F. Elsner, Ralph Kraft, Christine Jones, G. R. Meehan, Deron O. Pease, Michael Juda, Douglas A. Swartz
Publikováno v:
SPIE Proceedings.
The AXAF High-Resolution Camera (HRC) was calibrated at NASA MSFC's X-Ray Calibration Facility (XRCF) during 1997 March and April. We have undertaken an analysis of the HRC effective area using all data presently available from the XRCF. We discuss o
Autor:
William R. Forman, Maxim Markevitch, Christine Jones, R. Hank Donnelly, Eugene Churazov, Marat Gilfanov
Publikováno v:
Scopus-Elsevier
We study the temperature structure of the central part (r
5 pages, 2 figures, accepted for publication in the Astrophysical Journal
5 pages, 2 figures, accepted for publication in the Astrophysical Journal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::49bcdaa1fb9ac947a2dab57276246f24
http://arxiv.org/abs/astro-ph/9809380
http://arxiv.org/abs/astro-ph/9809380
Publikováno v:
The Astrophysical Journal. 354:52
Using new apparent magnitudes and new distances as determined from the Dn-sigma method, the correlation of X-ray to optical luminosities is reexamined for E and SO galaxies. The residuals about the least-squares fits decline significantly but are not
Publikováno v:
The Astrophysical Journal. 321:94
Results are reported from radio observations of three fields in the Lynx.2 area of the Leiden Berkeley Deep Survey (Windhorst et al., 1984), obtained at 6 cm with sensitivity about 15 microJy using the D configuration of the VLA on January 22, 23, an