56 citations · 56 across the 1 of their papers we have counts for
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Biomarkers in disk-averaged near-UV to near-IR Earth spectra using Earthshine observations
Slim Hamdani, Luc Arnold, C. Foellmi +6
We analyse the detectability of vegetation on a global scale on Earth's surface. Considering its specific reflectance spectrum showing a sharp edge around 700 nm, vegetation can be…
The first wide ultracool binary dwarf in the field: DENIS-J055146.0-443412.2 (M8.5 + L0)
M. Billeres, X. Delfosse, J. -L. Beuzit +3
We present observations of a new very low mass field binary, discovered during an infrared imaging survey of 250 DENIS L and very late-M dwarfs. DENIS-J055146.0-443412.2 is an M8.5…
On the Purity of the ZZ Ceti Instability Strip: Discovery of More Pulsating DA White Dwarfs on the Basis of Optical Spectroscopy
P. Bergeron, G. Fontaine, M. Billeres +2
We report the discovery of two new ZZ Ceti pulsators, LP 133-144 and HE 1258+0123, selected on the basis of model atmosphere fits to optical spectroscopic data. The atmospheric par…
A quadruply imaged quasar with an optical Einstein ring candidate: 1RXS J113155.4-123155
D. Sluse, J. Surdej, J. -F. Claeskens +6
We report the discovery of a new quadruply imaged quasar surrounded by an optical Einstein ring candidate. Spectra of the different components of 1RXS J113155.4-123155 reveal a sou…