Zobrazeno 1 - 10
of 303
pro vyhledávání: '"Edmonds, P. D."'
Autor:
Berg, Maureen van den, Sandoval, Liliana Rivera, Heinke, Craig O., Cohn, Haldan N., Lugger, Phyllis M., Grindlay, Jonathan E., Edmonds, Peter D., Anderson, Jay, Catuneanu, Andrei
We present simultaneous Chandra X-ray Observatory and Hubble Space Telescope observations of three certain (X5, X7, W37) and two likely (X4, W17) quiescent neutron-star low-mass X-ray binaries (qLMXBs) in the globular cluster 47 Tuc. We study these s
Externí odkaz:
http://arxiv.org/abs/2404.15504
Akademický článek
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Autor:
Sandoval, L. E. Rivera, Berg, M. van den, Heinke, C. O., Cohn, H. N., Lugger, P. M., Anderson, J., Cool, A. M., Edmonds, P. D., Wijnands, R., Ivanova, N., Grindlay, J. E.
We present 22 new (+3 confirmed) cataclysmic variables (CVs) in the non core-collapsed globular cluster 47 Tucanae (47 Tuc). The total number of CVs in the cluster is now 43, the largest sample in any globular cluster so far. For the identifications
Externí odkaz:
http://arxiv.org/abs/1705.07100
Akademický článek
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Discovery of near-ultraviolet counterparts to millisecond pulsars in the globular cluster 47 Tucanae
Autor:
Rivera-Sandoval, L. E., Berg, M. van den, Heinke, C. O., Cohn, H. N., Lugger, P. M., Freire, P., Anderson, J., Serenelli, A. M., Althaus, L. G., Cool, A. M., Grindlay, J. E., Edmonds, P. D., Wijnands, R., Ivanova, N.
We report the discovery of the likely white dwarf companions to radio millisecond pulsars 47 Tuc Q and 47 Tuc S in the globular cluster 47 Tucanae. These blue stars were found in near-ultraviolet images from the Hubble Space Telescope for which we de
Externí odkaz:
http://arxiv.org/abs/1508.05291
Autor:
van den Berg, M, Rivera Sandoval, L E, Heinke, C O, Cohn, H N, Lugger, P M, Grindlay, J E, Edmonds, P D, Anderson, J, Catuneanu, A
Publikováno v:
Monthly Notices of the Royal Astronomical Society; Jun2024, Vol. 531 Issue 1, p1653-1670, 18p
Autor:
Engel, Megan C., Heinke, Craig O., Sivakoff, Gregory R., Elshamouty, Khaled G., Edmonds, Peter D.
We present a candidate orbital period for the low mass X-ray binary XB 1832-330 in the globular cluster NGC 6652 using a 6.5 hour Gemini South observation of the optical counterpart of the system. Light curves in g' and r' for two LMXBs in the cluste
Externí odkaz:
http://arxiv.org/abs/1201.4131
Autor:
Stacey, W. S., Heinke, C. O., Elsner, R. F., Edmonds, P. D., Weisskopf, M. C., Grindlay, J. E.
We observed the accreting white dwarf 1E1339.8+2837 (1E1339) in the globular cluster M3 in Nov. 2003, May 2004 and Jan. 2005, using the Chandra ACIS-S detector. The source was observed in 1992 to possess traits of a supersoft X-ray source (SSS), with
Externí odkaz:
http://arxiv.org/abs/1103.3716
We report on archival Hubble Space Telescope (HST) observations of the globular cluster M71 (NGC 6838). These observations, covering the core of the globular cluster, were performed by the Advanced Camera for Surveys (ACS) and the Wide Field Planetar
Externí odkaz:
http://arxiv.org/abs/0912.1148
Autor:
Elsner, R. F., Heinke, C. O., Cohn, H. N., Lugger, P. M., Maxwell, J. E., Stairs, I. H., Ransom, S. M., Hessels, J. W. T., Becker, W., Huang, R. H. H., Edmonds, P. D., Grindlay, J. E., Bogdanov, S., Ghosh, K., Weisskopf, M. C.
We observed the nearby, low-density globular cluster M71 (NGC 6838) with the Chandra X-ray Observatory to study its faint X-ray populations. Five X-ray sources were found inside the cluster core radius, including the known eclipsing binary millisecon
Externí odkaz:
http://arxiv.org/abs/0807.2404