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J-PAS: The Javalambre-Physics of the Accelerated Universe Astrophysical Survey
The Javalambre-Physics of the Accelerated Universe Astrophysical Survey (J-PAS) is a narrow band, very wide field Cosmological Survey to be carried out from the Javalambre Observatory in Spain with aExpand
Surface composition and temperature of the TNO Orcus
Aims. The aim of this paper is to investigate the surface composition of the Transneptunian Object (TNO) Orcus. Methods. High quality observations have been carried out with the new instrumentExpand
Possible ring material around centaur (2060) Chiron
We propose that several short duration events observed in past stellar occultations by Chiron were produced by rings material. From a reanalysis of the stellar occultation data in the literature weExpand
ESO-Large Program on TNOs: Near-infrared spectroscopy with SINFONI ☆
Abstract We present in this work the observations performed with SINFONI in the framework of a new ESO-Large Program (2006–2008) on Trans-Neptunian Objects (TNOs) and Centaurs. We obtained 21Expand
The size, shape, density and ring of the dwarf planet Haumea from a stellar occultation
TLDR
Observations from multiple Earth-based observatories of Haumea passing in front of a distant star (a multi-chord stellar occultation) report the presence of a ring with an opacity of 0.5, which constrains the three-dimensional orientation of Haumesa and its triaxial shape, which is inconsistent with a homogeneous body in hydrostatic equilibrium. Expand
Charon's size and an upper limit on its atmosphere from a stellar occultation
TLDR
Observations from a multi-station stellar occultation by Charon are reported, which are used to derive the radius of Pluto and Charon, RC = 603.6 ± 1.4 km (1σ), and the density of ρ = 1.71 ± 0.08 g cm-3.3 (3σ) nanobar, assuming respectively a pure nitrogen or pure methane atmosphere. Expand
New insights on ices in Centaur and Transneptunian populations
Abstract A Large Program (LP) has been carried out at ESO–VLT using almost simultaneously the UT1, UT2 and UT4 telescopes (Cerro Paranal, Chile). The aim of this Large Program was to obtainExpand
A search for ethane on Pluto and Triton
We present here a search for solid ethane, C2H6, on the surfaces of Pluto and Triton, based on near-infrared spectral observations in the H and K bands (1.4–2.45 μm) using the Very Large TelescopeExpand
Asteroids 2867 Steins and 21 Lutetia: surface composition from far infrared observations with the Spitzer space telescope
Aims. The aim of this paper is to investigate the surface composition of the two asteroids 21 Lutetia and 2867 Steins, targets of the Rosetta space mission. Methods. We observed the two asteroidsExpand
Albedo and atmospheric constraints of dwarf planet Makemake from a stellar occultation
TLDR
The disappearances and reappearances of the star were abrupt, showing that Makemake has no global Pluto-like atmosphere at an upper limit of 4–12 nanobar (1σ) for the surface pressure, although a localized atmosphere is possible. Expand
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