Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Francis T. O'Donovan"'
Autor:
L. Rimoldini, J. Blomme, M. López, L. M. Sarro, J. De Ridder, Edward W. Dunham, Jonas Debosscher, Pierre Dubath, David Charbonneau, Francis T. O'Donovan, Timothy M. Brown, David R. Ciardi, Conny Aerts, G. Mandushev
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 418:96-106
We present a novel automated methodology to detect and classify periodic variable stars in a large data base of photometric time series. The methods are based on multivariate Bayesian statistics and use a multistage approach. We applied our method to
Autor:
Guillermo Torres, Francis T. O'Donovan, Roi Alonso, Robert P. Stefanik, Carl Hergenrother, Gilbert A. Esquerdo, David W. Latham, Mark E. Everett, Georgi Mandushev, José Miguel Fernández, David Charbonneau
Publikováno v:
The Astrophysical Journal. 701:764-775
We have derived masses and radii for both components in five short-period single-lined eclipsing binary stars discovered by the TrES wide-angle photometric survey for transiting planets. All these systems consist of a visible F-star primary and an un
Publikováno v:
The Astrophysical Journal. 691:866-874
We estimate the strength of the bandpass-integrated thermal emission from the extrasolar planet TrES-4 at 3.6, 4.5, 5.8, and 8.0 micron using the Infrared Array Camera (IRAC) on the Spitzer Space Telescope. We find relative eclipse depths of 0.137 +/
Autor:
John Asher Johnson, Debra A. Fischer, R. Paul Butler, Norio Narita, Joshua N. Winn, Edwin L. Turner, Yasushi Suto, B. Scott Gaudi, Steven S. Vogt, Francis T. O'Donovan
Publikováno v:
The Astrophysical Journal. 682:1283-1288
We monitored the Doppler shift of the G0V star TrES-2 throughout a transit of its giant planet. The anomalous Doppler shift due to stellar rotation (the Rossiter-McLaughlin effect) is discernible in the data, with a signal-to-noise ratio of 2.9, even
Autor:
David Charbonneau, Francis T. O'Donovan, Drake Deming, Joseph Harrington, Sara Seager, Heather A. Knutson
Publikováno v:
Proceedings of the International Astronomical Union. 4:536-539
We present here results from observations of TrES-2 made using the Infrared Array Camera on the Spitzer Space Telescope. We monitored this transiting system during two secondary eclipses, when the planetary emission is blocked by the star. The result
Publikováno v:
The Astronomical Journal. 135:850-877
In recent years, we have witnessed an explosion of photometric time-series data, collected for the purpose of finding a small number of rare sources, such as transiting extrasolar planets and gravitational microlenses. Once combed, these data are oft
Autor:
Francis T. O'Donovan, David Charbonneau, Guillermo Torres, Matthew J. Holman, David W. Latham, Alessandro Sozzetti, John B. Laird, Joshua N. Winn
Publikováno v:
The Astrophysical Journal. 664:1190-1198
We report on a spectroscopic determination of the atmospheric parameters and chemical abundance of the parent star of the recently discovered transiting planet {TrES-2}. A detailed LTE analysis of a set of \ion{Fe}{1} and \ion{Fe}{2} lines from our K
Autor:
Edward W. Dunham, Orlagh L. Creevey, David Charbonneau, Mark E. Everett, Gilbert A. Esquerdo, Francis T. O'Donovan, Guillermo Torres, Roi Alonso, Timothy M. Brown, David W. Latham, Georgi Mandushev
Publikováno v:
The Astrophysical Journal. 644:1237-1245
Ground-based wide-field surveys for nearby transiting gas giants are yielding far fewer true planets than astrophysical false positives, of which some are difficult to reject. Recent experience has highlighted the need for careful analysis to elimina
Autor:
Emilio E. Falco, David W. Latham, Gáspár Á. Bakos, Mark E. Everett, Joshua N. Winn, Gilbert A. Esquerdo, Robert W. Noyes, Matthew J. Holman, David Charbonneau, Francis T. O'Donovan, Balazs Csak
Publikováno v:
The Astrophysical Journal. 636:445-452
We report g, V, and r photometric time series of HD 149026 spanning predicted times of transit of the Saturn-mass planetary companion, which was recently discovered by Sato and collaborators. We present a joint analysis of our observations and the pr
Autor:
Kendra E. Moore, Juan Liu, Connie E. Fournelle, Francis T. O'Donovan, Jianqiang Shen, Steve Gaffigan, Oliver Brdiczka
Publikováno v:
2013 IEEE International Conference on Multimedia and Expo Workshops (ICMEW).
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