Zobrazeno 1 - 10
of 30
pro vyhledávání: '"McKeever, Jean"'
Localised modelling error in the near-surface layers of evolutionary stellar models causes the frequencies of their normal modes of oscillation to differ from those of actual stars with matching interior structures. These frequency differences are re
Externí odkaz:
http://arxiv.org/abs/2011.01957
Autor:
Gaulme, Patrick, Jackiewicz, Jason, Spada, Federico, Chojnowski, Drew, Mosser, Benoit, McKeever, Jean, Hedlund, Anne, Vrard, Mathieu, Benbakoura, Mansour, Damiani, Cilia
Publikováno v:
A&A 639, A63 (2020)
The objective of this work is to determine what fraction of red-giant (RG) stars shows photometric rotational modulation, and understand its origin. One of the underlying questions is the role of close binarity in this population, standing upon the f
Externí odkaz:
http://arxiv.org/abs/2004.13792
The helium abundance of stars is a strong driver of evolutionary timescales, however it is difficult to measure in cool stars. We conduct an asteroseismic analysis of NGC 6791, an old, metal rich open cluster that previous studies have indicated also
Externí odkaz:
http://arxiv.org/abs/1903.00497
Autor:
Gaulme, Patrick, McKeever, Jean, Jackiewicz, Jason, Rawls, Meredith L., Corsaro, Enrico, Mosser, Benoit, Southworth, John, Mahadevan, Suvrath, Bender, Chad, Deshpande, Rohit
Publikováno v:
Astrophysical Journal 2016
Given the potential of ensemble asteroseismology for understanding fundamental properties of large numbers of stars, it is critical to determine the accuracy of the scaling relations on which these measurements are based. From several powerful valida
Externí odkaz:
http://arxiv.org/abs/1609.06645
Autor:
Rawls, Meredith L., Gaulme, Patrick, McKeever, Jean, Jackiewicz, Jason, Orosz, Jerome A., Corsaro, Enrico, Beck, Paul, Mosser, Benoît, Latham, David W., Latham, Christian A.
We combine Kepler photometry with ground-based spectra to present a comprehensive dynamical model of the double red giant eclipsing binary KIC 9246715. While the two stars are very similar in mass (M1 = 2.171 [+0.006 / -0.008], M2 = 2.149 [+0.006 / -
Externí odkaz:
http://arxiv.org/abs/1601.00038
Publikováno v:
PASP, 125:1429-1435, 2013
We present an analysis of interstellar absorption lines in high-resolution optical echelle spectra of SS Cyg obtained during an outburst in 2013 June and in archival Hubble Space Telescope and Far Ultraviolet Spectroscopic Explorer data. The Ca II K
Externí odkaz:
http://arxiv.org/abs/1312.1713
Publikováno v:
Astronomical Journal, 143, 101 (2012)
The light curves of 252 B-star candidates in the Kepler data base are analyzed in a similar fashion to that done by Balona et al. (2011) to further characterize B star variability, increase the sample of variable B stars for future study, and to iden
Externí odkaz:
http://arxiv.org/abs/1202.2329
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2011 . 123(907), 1062-1070.
Externí odkaz:
https://www.jstor.org/stable/10.1086/662076
Autor:
Ong, Joel J. M., Basu, Sarbani, McKeever, Jean, Roxburgh, Ian, Lund, Mikkel N., Bieryla, Allyson, Viani, Lucas S., Latham, David W.
We present new methodological developments regarding the treatment of the asteroseismic surface term in stars with mixed modes. Models of solar-like oscillators yield acoustic modes at different frequencies than would be seen in actual stars possessi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::757bdb433182058177bb16d06dadedac
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