Results 21 to 30 of about 765,419 (288)

The large-scale magnetic fields of planet-hosting solar-type stars [PDF]

, 2017
Stellar magnetic fields and their associated phenomena influence stellar behaviour and evolution, and potentially have significant impacts on any surrounding planetary system.
Mengel, Matthew W.
core   +1 more source

Magnetic cycles of the planet-hosting star τ Bootis [PDF]

Monthly Notices of the Royal Astronomical Society, 2008
We have obtained new spectropolarimetric observations of the planet-hosting star tauBootis, using the ESPaDOnS and NARVAL spectropolarimeters at the Canada-France-Hawaii Telescope and Telescope Bernard-Lyot. With this data set, we are able to confirm the presence of a magnetic field at the surface of tauBoo and map its large-scale structure over the ...
Donati, J. F., Moutou, C., Fares, R., Bohlender, D., Catala, C., Deleuil, M., Shkolnik, E., Cameron, A. C., Jardine, M. M., Walker, G. A. H.   +9 more
openaire   +6 more sources

Binary frequency of planet-host stars at wide separations [PDF]

Astronomy & Astrophysics, 2014
The aim of the project is to improve our knowledge on the multiplicity of planet-host stars at wide physical separations. We cross-matched approximately 6200 square degree area of the Southern sky imaged by the Visible Infrared Survey Telescope for Astronomy (VISTA) Hemisphere Survey (VHS) with the Two Micron All Sky Survey (2MASS) to look for wide ...
Lodieu, N., Perez-Garrido, A., Bejar, V. J. S., Gauza, B., Ruiz, M. T., Rebolo, R., Pinfield, D. J., Martin, E. L.   +7 more
openaire   +2 more sources

Free-floating or Wide-orbit? Keck Adaptive-optics Observations of Free-floating Planet Candidates Detected with Gravitational Microlensing

The Astronomical Journal, 2023
Recent detections of extremely short-timescale microlensing events imply the existence of a large population of Earth- to Neptune-mass planets that appear to have no host stars.
Przemek Mróz, Makiko Ban, Pierlou Marty, Radosław Poleski   +3 more
doaj   +1 more source

Magnetism and activity of planet hosting stars [PDF]

Proceedings of the International Astronomical Union, 2015
AbstractThe magnetic activity levels of planet host stars may differ from that of stars not known to host planets in several ways. Hot Jupiters may induce activity in their hosts through magnetic interactions, or through tidal interactions by affecting their host's rotation or convection. Measurements of photospheric, chromospheric, or coronal activity
Wright, Jason T., Miller, Brendan P.
openaire   +2 more sources

Age Distribution of Exoplanet Host Stars: Chemical and Kinematic Age Proxies from GAIA DR3

The Astronomical Journal, 2023
The GAIA space mission is impacting astronomy in many significant ways by providing a uniform, homogeneous, and precise data set for over 1 billion stars and other celestial objects in the Milky Way and beyond.
C. Swastik, Ravinder K. Banyal, Mayank Narang, Athira Unni, Bihan Banerjee, P. Manoj, T. Sivarani   +6 more
doaj   +1 more source

Chemical composition of bright stars in the northern hemisphere: star-planet connection / [PDF]

, 2022
In fulfilling the aims of the planetary and asteroseismic research missions, such as that of the NASA Transiting Exoplanet Survey Satellite (TESS) space telescope, accurate stellar atmospheric parameters and a detailed chemical composition are required ...
Tautvaišienė, Gražina,, Ambrosch, Markus,, Grundahl, Frank,, Brogaard, Karsten Frank,, Stonkutė, Edita,, Bagdonas, Vilius,, Pakštienė, Erika,, Viscasillas Vazquez, Carlos,, Mikolaitis, Šarūnas,, Sharma, Ashutosh,, Von Essen, Carolina,, Chorniy, Yiuriy,, Minkevičiūtė, Renata,, Kjeldsen, Hans,, Drazdauskas, Arnas,, K. Brogaard, H. Kjeldsen, G. Tautvaišienė, V. Bagdonas, E. Stonkutė, C. Viscasillas Vázquez, A. Sharma, Y. Chorniy, E. Pakštienė, C. von Essen, A. Drazdauskas, M. Ambrosch, Š. Mikolaitis, R. Minkevičiūtė, F. Grundahl   +29 more
core   +1 more source

Winds of Planet Hosting Stars

, 2015
8 pages, 2 figures, accepted for publication in the peer-reviewed proceedings of the 14th Australian Space Research Conference, held at the University of South Australia, 29th September - 1st October ...
Nicholson, B. A., Mengel, M. W., Brookshaw, L., Vidotto, A. A., Carter, B. D., Marsden, S. C., Soutter, J., Waite, I. A., Horner, J.   +8 more
openaire   +2 more sources

Abundance analysis of planet-hosting and debris-disk stars [PDF]

, 2014
: We present an analysis of element abundances in planet-hosting and debrisdisk stars based on high-resolution spectra obtained with the FEROS echelle spectrograph and the 2.2-m ESO telescope at La Silla. Atmospheric parameters and abundance patterns for
Rojas M., Kholtygin, A. F., Cahuasqui, J. A., Pereira, C. B., Drake N. A., Chavero, Carolina Andrea   +5 more
core   +1 more source

Chemical signatures of planetary systems in their host stars

Astronomy & Astrophysics
Context. An important open question in exoplanet studies is whether planets can leave detectable chemical fingerprints on their host stars. While several studies have suggested possible planetary chemical signatures in planet-hosting stars, including the
Lim Dongwook, Yun Sol, Koch-Hansen Andreas J., Chun Sang-Hyun, Lee Young Sun, Lee Young-Wook   +5 more
doaj   +1 more source