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7 papers · 2 filters
Computational helioseismology in the frequency domain: acoustic waves in axisymmetric solar models with flows
Laurent Gizon, Hélène Barucq, Marc Duruflé +7
Local helioseismology has so far relied on semi-analytical methods to compute the spatial sensitivity of wave travel times to perturbations in the solar interior. These methods are…
The Gaia-ESO Survey: calibration strategy
E. Pancino, the Gaia-ESO Survey collaboration
The Gaia-ESO survey (GES) is now in its fifth and last year of observations, and has already produced tens of thousands of high-quality spectra of stars in all Milky Way components…
A test field for Gaia. Radial velocity catalogue of stars in the South Ecliptic Pole
Y. Frémat, M. Altmann, E. Pancino +25
Gaia is a space mission currently measuring the five astrometric parameters as well as spectrophotometry of at least 1 billion stars to G = 20.7 mag with unprecedented precision. T…
Proper motion survey and kinematic analysis of the Rho Ophiuchi embedded cluster
C. Ducourant, R. Teixeira, A. Krone-Martins +7
We aim at performing a kinematic census of young stellar objects (YSOs) in the Rho Ophiuchi F core and partially in the E core of the L1688 dark cloud. We run a proper motion progr…
Behaviour of elements from lithium to europium in stars with and without planets
T. Mishenina, V. Kovtyukh, C. Soubiran +1
We conducted an analysis of the distribution of elements from lithium to europium in 200 dwarfs in the solar neighbourhood ~20 pc with temperatures in the range 4800-6200 K and met…
The millimeter IRAM-30m line survey toward IK Tau
L. Velilla Prieto, C. Sánchez Contreras, J. Cernicharo +8
We carried out a millimeter wavelength line survey between 79 and 356 GHz with the IRAM-30m telescope to investigate the physical and chemical properties of the molecular envelope…