Zobrazeno 1 - 10
of 53
pro vyhledávání: '"McArthur, B. E."'
The 14 Her Planetary System: Companion Masses and Architecture from Radial Velocities and Astrometry
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:
http://arxiv.org/abs/2305.11753
Autor:
Benedict, G. F., McArthur, B. E., Nelan, E. P., Wittenmyer, R., Barnes, R., Smotherman, H., Horner, J.
With Hubble Space Telescope Fine Guidance Sensor astrometry and published and previously unpublished radial velocity measures we explore the exoplanetary system mu Arae.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:
http://arxiv.org/abs/2204.13706
Autor:
Chaboyer, B., McArthur, B. E., O'Malley, E., Benedict, G. F., Feiden, G. A., Harrison, T. E., McWilliam, A., Nelan, E. P., Patterson, R. J., Sarajedini, A.
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:
http://arxiv.org/abs/1702.00803
Autor:
Benedict, G. F., Henry, T. J., Franz, O. G., McArthur, B. E., Wasserman, L. H., Jao, Wei-Chun, Cargile, P. A., Dieterich, S. B., Bradley, A. J., Nelan, E. P., Whipple, A. L.
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:
http://arxiv.org/abs/1608.04775
Autor:
Schmid, V. S., Themeßl, N., Breger, M., Degroote, P., Aerts, C., Beck, P. G., Tkachenko, A., Van Reeth, T., Bloemen, S., Debosscher, J., Castanheira, B. G., McArthur, B. E., Pápics, P. I., Fritz, V., Falcon, R. E.
Publikováno v:
A&A 570, A33 (2014)
More than 40 years of ground-based photometric observations of the delta Sct star 4CVn revealed 18 independent oscillation frequencies, including radial as well as non-radial p-modes of low spherical degree l<=2. From 2008 to 2011, more than 2000 spe
Externí odkaz:
http://arxiv.org/abs/1407.4257
Autor:
Fouque, P., Arriagada, P., Storm, J., Barnes, T. G., Nardetto, N., Merand, A., Kervella, P., Gieren, W., Bersier, D., Benedict, G. F., McArthur, B. E.
The universality of the Cepheid Period-Luminosity relations has been under discussion since metallicity effects have been assumed to play a role in the value of the intercept and, more recently, of the slope of these relations. The goal of the presen
Externí odkaz:
http://arxiv.org/abs/0709.3255
Autor:
Roelofs, G. H. A., Groot, P. J., Benedict, G. F., McArthur, B. E., Steeghs, D., Morales-Rueda, L., Marsh, T. R., Nelemans, G.
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 translate into distances d(AM CVn)=606+135-93 pc, d(HP
Externí odkaz:
http://arxiv.org/abs/0705.3855
Autor:
Creevey, O. L., Benedict, G. F., Brown, T. M., Alonso, R., Cargile, P., Mandushev, G., Charbonneau, D., McArthur, B. E., Cochran, W., O'Donovan, F. T., Jiménez-Reyes, S. J., Belmonte, J. A., Kolinski, D.
Publikováno v:
Astrophys.J.625:L127-L130,2005
We describe a newly-discovered detached M-dwarf eclipsing binary system, the fourth such system known. This system was first observed by the TrES network during a long term photometry campaign of 54 nights. Analysis of the folded light curve indicate
Externí odkaz:
http://arxiv.org/abs/astro-ph/0504490
Autor:
Golimowski, D. A., Henry, T. J., Krist, J. E., Dieterich, S., Ford, H. C., Illingworth, G. D., Ardila, D. R., Clampin, M., Franz, O. G., Wasserman, L. H., Benedict, G. F., McArthur, B. E., Nelan, E. G.
We report the detections of low-mass companions to five M and L dwarfs within 10 pc of the Sun using the Hubble Space Telescope (HST) Near-Infrared Camera and Multi-Object Spectrometer (NICMOS). Follow-up observations using the HST Advanced Camera fo
Externí odkaz:
http://arxiv.org/abs/astro-ph/0406664
Publikováno v:
Astron.Astrophys. 419 (2004) 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:
http://arxiv.org/abs/astro-ph/0402548