Zobrazeno 1 - 10
of 60
pro vyhledávání: '"G. F. Benedict"'
The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry
Publikováno v:
The Astronomical Journal, Vol 166, Iss 1, p 27 (2023)
We combine Hubble Space Telescope (HST) Fine Guidance Sensor, Hipparcos, and Gaia DR3 astrometric observations of the K0 V star 14 Her with the results of an analysis of extensive ground-based radial velocity data to determine perturbation orbits and
Externí odkaz:
https://doaj.org/article/cfcdb3d775d746cbbc46d8240f8d8b2e
Autor:
G. F. Benedict, B. E. McArthur, E. P. Nelan, R. Wittenmyer, R. Barnes, H. Smotherman, J. Horner
Publikováno v:
The Astronomical Journal. 163:295
With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures we explore the exoplanetary system mu Arae. Our modeling of the radial velocities results in improved orbital elements for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff9447b0ba2e50891ee30cb45b9b379b
https://doi.org/10.3847/1538-3881/ac6ac8
https://doi.org/10.3847/1538-3881/ac6ac8
Autor:
Wei-Chun Jao, Phillip A. Cargile, L. H. Wasserman, S. B. Dieterich, Barbara McArthur, Todd J. Henry, Edmund P. Nelan, Otto G. Franz, Arthur L. Whipple, Arthur J. Bradley, G. F. Benedict
We present a Mass-Luminosity Relation (MLR) for red dwarfs spanning a range of masses from 0.62 Msun to the end of the stellar main sequence at 0.08 Msun. The relation is based on 47 stars for which dynamical masses have been determined, primarily us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e87081bfeb16e5eacb13af4307773b9
http://arxiv.org/abs/1608.04775
http://arxiv.org/abs/1608.04775
Autor:
Ata Sarajedini, Gregory A. Feiden, Barbara McArthur, Edmund P. Nelan, Richard J. Patterson, Andrew McWilliam, Brian Chaboyer, T. E. Harrison, G. F. Benedict
Publikováno v:
Proceedings of the International Astronomical Union. 8:87-90
Our team was awarded 108 orbits of Hubble Space Telescope time to obtain parallaxes and photometry of nine metal-poor stars with [Fe/H] < −1.5 dex. The parallaxes are obtained from observations with the Fine Guidance Sensor (FGS 1r; 11 orbits per s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d727b73fbc6b15738db495949eeed69
https://doi.org/10.1017/s1743921312021175
https://doi.org/10.1017/s1743921312021175
Publikováno v:
Proceedings of the International Astronomical Union. 3:23-29
In a few years astrometry with the venerable combination of Hubble Space Telescope and Fine Guidance Sensor will be replaced by SIM, Gaia, and long-baseline interferometry. Until then we remain a resource of choice for sub-millisecond of arc precisio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::822b3021aa38a2b60c73d55df7a67067
https://doi.org/10.1017/s1743921308018577
https://doi.org/10.1017/s1743921308018577
Autor:
Gijs Nelemans, Paul J. Groot, T. R. Marsh, Gijs H. A. Roelofs, Barbara McArthur, G. F. Benedict, Danny Steeghs, L. Morales-Rueda
Publikováno v:
The Astrophysical Journal, 666, 2, pp. 1174-1188
The Astrophysical Journal, 666, 1174-1188
The Astrophysical Journal, 666, 1174-1188
Contains fulltext : 34683.pdf ( ) (Open Access) We present absolute parallaxes and relative proper motions for five AM CVn stars, which we obtained using the Fine Guidance Sensors on board the Hubble Space Telescope. Our parallax measurements transla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65696eb3d155c558ec6e078d4f4298f4
https://hdl.handle.net/2066/34683
https://hdl.handle.net/2066/34683
Publikováno v:
Astronomy & Astrophysics. 419:291-299
Using the Hubble space Telescope Fine Guidance Sensor, we have measured the trigonometric parallax of the bright cataclysmic variable 1223 Sgr. The absolute parallax is pi(abs)= 1.96+-0.18mas, making V1223 Sgr the most distant CV with a well-determin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dff9bd2d4524f2d7c8cf4b9b1b6d2064
https://doi.org/10.1051/0004-6361:20034424
https://doi.org/10.1051/0004-6361:20034424
Autor:
G. W. Marcy, T. Forveille, X. Delfosse, William H. Jefferys, William Spiesman, M. Mayor, E. P. Nelan, C. Perrier, Barbara McArthur, Bertrand Goldman, R. P. Butler, G. F. Benedict
Publikováno v:
The Astrophysical Journal. 581:L115-L118
We report the first astrometrically determined mass of an extrasolar planet, a companion previously detected by Doppler spectroscopy. Radial velocities first provided an ephemeris with which to schedule a significant fraction of the {\it HST} observa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c080033dc08b901d8e309caeaed94a00
https://doi.org/10.1086/346073
https://doi.org/10.1086/346073
Autor:
Andrew McWilliam, Barbara McArthur, Thomas E. Harrison, G. F. Benedict, Brian Chaboyer, Edmund P. Nelan, Gregory A. Feiden, Richard J. Patterson, Ata Sarajedini, Erin M. O'Malley
Publikováno v:
The Astrophysical Journal. 835:152
Hubble Space Telescope (HST) fine guidance sensor observations were used to obtain parallaxes of eight metal-poor ([Fe/H] < -1.4) stars. The parallaxes of these stars determined by the revised Hipparcos reduction average 17% accuracy, in contrast to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e7a3207af25644f52f1744fcb05900f
https://doi.org/10.3847/1538-4357/835/2/152
https://doi.org/10.3847/1538-4357/835/2/152
Autor:
Laurence W. Fredrick, Raynor L. Duncombe, W. F. van Altena, William H. Jefferys, William Spiesman, D. Story, Barbara McArthur, Arthur J. Bradley, Edward L. Robinson, O. G. Franz, P. D. Hemenway, G. F. Benedict, Lawrence H. Wasserman, J. T. Lee, E. P. Nelan, Peter J. Shelus, Arthur L. Whipple
Publikováno v:
The Astronomical Journal. 119:2382-2390
With HST FGS 3 we have determined a parallax for the white dwarf - M dwarf interacting binary, Feige 24. The white dwarf (DA) component has an effective temperature, T_eff of approximately 56,000 K degrees. A weighted average with past parallax deter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec4e89ad6df5a7e0d4855f68ed8b52b1
https://doi.org/10.1086/301355
https://doi.org/10.1086/301355