Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Beust, Hervé"'
Autor:
Zhang, Yapeng, Ginski, Christian, Huang, Jane, Zurlo, Alice, Beust, Hervé, Bae, Jaehan, Benisty, Myriam, Garufi, Antonio, Hogerheijde, Michiel R., van Holstein, Rob G., Kenworthy, Matthew, Langlois, Maud, Manara, Carlo F., Pinilla, Paola, Rab, Christian, Ribas, Álvaro, Rosotti, Giovanni P., Williams, Jonathan
Publikováno v:
A&A 672, A145 (2023)
Circumstellar disks do not evolve in isolation, as about half of solar-type stars were born in binary or multiple systems. Resolving disks in binary systems provides the opportunity to examine the influence of stellar companions on the outcomes of pl
Externí odkaz:
http://arxiv.org/abs/2302.12824
Autor:
Pearce, Tim D., Beust, Hervé, Faramaz, Virginie, Booth, Mark, Krivov, Alexander V., Löhne, Torsten, Poblete, Pedro P.
The star Fomalhaut hosts a narrow, eccentric debris disc, plus a highly eccentric companion Fomalhaut b. It is often argued that Fomalhaut b cannot have significant mass, otherwise it would quickly perturb the disc. We show that material in internal
Externí odkaz:
http://arxiv.org/abs/2103.04977
Autor:
Bourrier, Vincent, Lovis, Christophe, Beust, Hervé, Ehrenreich, David, Henry, Gregory W., Astudillo-Defru, Nicola, Allart, Romain, Bonfils, Xavier, Ségransan, Damien, Delfosse, Xavier, Cegla, Heather M., Wyttenbach, Aurélien, Heng, Kevin, Lavie, Baptiste, Pepe, Francesco
The angle between the spin of a star and its planets' orbital planes traces the history of the planetary system. Exoplanets orbiting close to cool stars are expected to be on circular, aligned orbits because of strong tidal interactions with the stel
Externí odkaz:
http://arxiv.org/abs/1712.06638
Autor:
Beust, Hervé
Statistical analysis of the orbits of distant Kuiper Belt Objects (KBOs) have led to suggest that an additional planet should reside in the Solar System. According to recent models, the secular action of this body should cause orbital alignment of th
Externí odkaz:
http://arxiv.org/abs/1605.02473
Autor:
Beust, Hervé, Bonnefoy, Mickael, Maire, Anne-Lise, Ehrenreich, David, Lagrange, Anne-Marie, Chauvin, Gael
Imaging companions to main-sequence stars often allows to detect a projected orbital motion. MCMC has become very popular in for fitting their orbits. Some of these companions appear to move on very eccentric, possibly unbound orbits. This is the cas
Externí odkaz:
http://arxiv.org/abs/1512.03596
Autor:
Tang, Ya-Wen, Dutrey, Anne, Guilloteau, Stephane, Chapillon, Edwige, Pietu, Vincent, Di Folco, Emmanuel, Bary, Jeff, Beck, Tracy, Beust, Herve, Boehler, Yann, Gueth, Frederic, Hure, Jean-Marc, Pierens, Arnaud, Simon, Michal
We aim to unveil the observational imprint of physical mechanisms that govern planetary formation in the young, multiple system GG Tau A. We present ALMA observations of $^{12}$CO and $^{13}$CO 3-2 and 0.9 mm continuum emission with 0.35" resolution.
Externí odkaz:
http://arxiv.org/abs/1511.05687
Publikováno v:
A&A 573, A87 (2015)
The eccentric shape of the debris disk observed around Fomalhaut was first attributed to Fom b, a companion detected near the belt inner-edge, but new constraints on its orbit revealed that it is belt-crossing, highly eccentric $(e \sim 0.6-0.9)$, an
Externí odkaz:
http://arxiv.org/abs/1409.6868
Autor:
Kiefer, Flavien, Etangs, Alain Lecavelier des, Augereau, Jean-Charles, Vidal-Madjar, Alfred, Lagrange, Anne-Marie, Beust, Herve
The source HD172555 is a young A7V star surrounded by a debris disk with a gaseous component. Here, we present the detection of variable absorption features detected simultaneously in the Ca II K and H doublet lines (at 3,933 and 3,968 Angstrom). We
Externí odkaz:
http://arxiv.org/abs/1401.1365
An independent determination of Fomalhaut b's orbit and the dynamical effects on the outer dust belt
Autor:
Beust, Hervé, Augereau, Jean-Charles, Bonsor, Amy, Graham, J., Kalas, Paul, Lebreton, J., Lagrange, Anne-Marie, Ertel, Steve, Faramaz, Virginie, Thebault, Philippe
The nearby star Fomalhaut harbours a cold, moderately eccentric dust belt with a sharp inner edge near 133 au. A low-mass, common proper motion companion (Fom b), was discovered near the inner edge and was identified as a planet candidate that could
Externí odkaz:
http://arxiv.org/abs/1311.5035
Autor:
Bouquin, Jean-Baptiste Le, Beust, Herve, Duvert, Gilles, Berger, Jean-Philippe, Menard, F., Zins, G.
We aim at measuring the stellar parameters of the two Chemically Peculiar components of the B9.5Vp HgMn + A2 Vm double-lined spectroscopic binary HD141556, whose period is 15.25 days. We combined historical radial velocity measurements with new spati
Externí odkaz:
http://arxiv.org/abs/1302.5014