Showing 2013 · astro-ph.EPShow all

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astro-ph.EP2013★ 72 cited

The atmospheric chemistry of the warm Neptune GJ 3470b: influence of metallicity and temperature on the CH4/CO ratio

Olivia Venot, Marcelino Agundez, Franck Selsis +2

Current observation techniques are able to probe the atmosphere of some giant exoplanets and get some clues about their atmospheric composition. However, the chemical compositions…

astro-ph.EP2013★ 101 cited

What asteroseismology can do for exoplanets: Kepler-410A b is a Small Neptune around a bright star, in an eccentric orbit consistent with low obliquity

Vincent Van Eylen, Mikkel N. Lund, Victor Silva Aguirre +12

We confirm the Kepler planet candidate Kepler-410b (KOI-42b) as a Neptune sized exoplanet on a 17.8 day, eccentric orbit around the bright (Kp = 9.4) star Kepler-410A. This is the…

astro-ph.EP2013★ 70 cited

The puzzling chemical composition of GJ 436b's atmosphere: influence of tidal heating on the chemistry

M. Agundez, O. Venot, F. Selsis +1

The dissipation of the tidal energy deposited on eccentric planets may induce a heating of the planet that affects its atmospheric thermal structure. Here we study the influence of…

astro-ph.EP2013★ 50 cited

Herschel HIFI observations of ionised carbon in the β Pictoris debris disk

G. Cataldi, A. Brandeker, G. Olofsson +9

Context: The dusty debris disk around the 20 Myr old main-sequence A-star β Pictoris is known to contain gas. Evidence points towards a secondary origin of the gas as opposed…

astro-ph.EP2013★ 72 cited

First submillimeter observation of CO in the stratosphere of Uranus

T. Cavalié, R. Moreno, E. Lellouch +8

Context. Carbon monoxide (CO) has been detected in all Giant Planets and its origin is both internal and external in Jupiter and Neptune. Despite its first detection in Uranus a de…

astro-ph.EP2013★ 1.3k cited

The PLATO 2.0 Mission

H. Rauer, C. Catala, C. Aerts +159

PLATO 2.0 has recently been selected for ESA's M3 launch opportunity (2022/24). Providing accurate key planet parameters (radius, mass, density and age) in statistical numbers, it…

astro-ph.EP2013★ 47 cited

Kepler-77b: a very low albedo, Saturn-mass transiting planet around a metal-rich solar-like star

D. Gandolfi, H. Parviainen, M. Fridlund +18

We report the discovery of Kepler-77b (alias KOI-127.01), a Saturn-mass transiting planet in a 3.6-day orbit around a metal-rich solar-like star. We combined the publicly available…

astro-ph.EP2013★ 17 cited

Identification of transitional disks in Chamaeleon with Herschel

Á. Ribas, B. Merín, H. Bouy +11

Transitional disks are circumstellar disks with inner holes that in some cases are produced by planets and/or substellar companions in these systems. For this reason, these disks a…

astro-ph.EP2013★ 46 cited

The GAPS Programme with HARPS-N@TNG II: No giant planets around the metal-poor star HIP 11952

S. Desidera, A. Sozzetti, A. S. Bonomo +37

In the context of the program Global Architecture of Planetary Systems (GAPS), we have performed radial velocity monitoring of the metal-poor star HIP 11952 on 35 nights over about…

astro-ph.EP2013★ 110 cited

The D/H ratio in the atmospheres of Uranus and Neptune from Herschel PACS observations

H. Feuchtgruber, E. Lellouch, G. Orton +9

Herschel-PACS measurements of the rotational R(0) and R(1) HD lines in the atmospheres of Uranus and Neptune are analyzed in order to derive a D/H ratio with improved precision for…