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7 papers · 2 filters
The composition of the protosolar disk and the formation conditions for comets
K. Willacy, C. Alexander, M. Ali-Dib +12
Conditions in the protosolar nebula have left their mark in the composition of cometary volatiles, thought to be some of the most pristine material in the solar system. Cometary co…
A giant comet-like cloud of hydrogen escaping the warm Neptune-mass exoplanet GJ 436b
David Ehrenreich, Vincent Bourrier, Peter J. Wheatley +8
Exoplanets orbiting close to their parent stars could lose some fraction of their atmospheres because of the extreme irradiation. Atmospheric mass loss primarily affects low-mass e…
PASTIS: Bayesian extrasolar planet validation II. Constraining exoplanet blend scenarios using spectroscopic diagnoses
A. Santerne, R. F. Díaz, J. -M. Almenara +7
The statistical validation of transiting exoplanets proved to be an efficient technique to secure the nature of small exoplanet signals which cannot be established by purely spectr…
Chemical composition of the circumstellar disk around AB Aurigae
S. Pacheco-Vázquez, A. Fuente, M. Agúndez +9
Aims. Our goal is to determine the molecular composition of the circumstellar disk around AB Aurigae (hereafter, AB Aur). AB Aur is a prototypical Herbig Ae star and the understand…
Does the presence of planets affect the frequency and properties of extrasolar Kuiper Belts? Results from the Herschel DEBRIS and DUNES surveys
A. Moro-Martin, J. P. Marshall, G. Kennedy +14
The study of the planet-debris disk connection can shed light on the formation and evolution of planetary systems, and may help predict the presence of planets around stars with ce…
The Inner Disk Structure, Disk-Planet Interactions, and Temporal Evolution in the Beta Pictoris System: A Two-Epoch HST/STIS Coronagraphic Study
Daniel Apai, Glenn Schneider, Carol A. Grady +5
We present deep HST/STIS coronagraphic images of the Beta Pic debris disk obtained at two epochs separated by 15 years. The new images and the re-reduction of the 1997 data provide…