387 citations
- University of ÉvoraPT11 papers
- University of LisbonPT10 papers
- European Southern ObservatoryCL8 papers
- Institute of Astrophysics and Space SciencesPT8 papers
- Institut d'Astrophysique de ParisFR6 papers
- Observatoire Cantonal de NeuchâtelCH6 papers
- Centre National de la Recherche ScientifiqueFR5 papers
- University of GenevaCH5 papers
- Instituto de Astrofísica de CanariasES4 papers
- Laboratoire d’Astrophysique de MarseilleFR4 papers
- University of BernCH3 papers
- Centro de Astrofísica da Universidade do PortoPT2 papers
12 papers
Sunspots during the Maunder Minimum from Machina Coelestis by Hevelius
V. M. S. Carrasco, J. Villalba Álvarez, J. M. Vaquero
We revisited the sunspot observations published by Johannes Hevelius in his book Machina Coelestis (1679) corresponding to the period 1653-1675 (just in the middle of the Maunder M…
The HARPS search for southern extra-solar planets. IX. Exoplanets orbiting HD 100777, HD 190647, and HD 221287
Dominique Naef, Michel Mayor, Willy Benz +8
The HARPS high-resolution high-accuracy spectrograph is offered to the astronomical community since the second half of 2003. Since then, we have been using this instrument for moni…
A new code for automatic determination of equivalent widths: Automatic Routine for line Equivalent widths in stellar Spectra (ARES)
S. G. Sousa, N. C. Santos, G. Israelian +2
We present a new automatic code (ARES) for determining equivalent widths of the absorption lines present in stellar spectra. We also describe its use for determining fundamental sp…
An extrasolar planetary system with three Neptune-mass planets
C. Lovis, M. Mayor, F. Pepe +11
Over the past two years, the search for low-mass extrasolar planets has led to the detection of seven so-called 'hot Neptunes' or 'super-Earths' around Sun-like stars. These planet…
A new Neptune-mass planet orbiting HD 219828
C. Melo, N. C. Santos, W. Gieren +10
Two years ago a new benchmark for the planetary survey was set with the discoveries of three extrasolar planets with masses below 20. In particular, the serendipitous dis…
The transiting planet OGLE-TR-132b revisited with new spectroscopy and deconvolution photometry
M. Gillon, F. Pont, C. Moutou +8
OGLE-TR-132b transits a very metal-rich F dwarf about 2000 pc from the Sun, in the Galactic disc towards Carina. It orbits very close to its host star (a = 0.03 AU) and has an equi…