701 citations · 4.4k across the 86 of their papers we have counts for
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Precessing planetary magnetospheres in SiO stars ? First detection of quasi-periodic polarization fluctuations in R Leo and V Cam
Helmut W. Wiesemeyer, Clemens Thum, Alain Baudry +1
The origin of magnetism around AGB stars is uncertain. If these stars drive a dynamo, it cannot be sufficient to generate a strong global field, otherwise the observed X-ray lumino…
Evolution of massive protostars: the IRAS 18151-1208 region
M. Marseille, S. Bontemps, F. Herpin +2
The study of physical and chemical properties of massive protostars is critical to better understand the evolutionary sequence which leads to the formation of high-mass stars. IRAS…
Full polarization study of SiO masers at 86 GHz
Fabrice Herpin, Alain Baudry, Clemens Thum +2
We study the polarization of the SiO maser emission in a representative sample of evolved stars in order to derive an estimate of the strength of the magnetic field, and thus deter…
Water in the envelopes and disks around young high-mass stars
Floris van der Tak, Malcolm Walmsley, Fabrice Herpin +1
Single-dish spectra and interferometric maps of (sub)mm lines of H2O-18 and HDO are used to study the chemistry of water in eight regions of high-mass star formation. The spectra i…
Molecular hydrogen beyond the optical edge of an isolated spiral galaxy
Jonathan Braine, Fabrice Herpin
We know little about the outermost portions of galaxies because there is little light coming from them. We do know that in many cases atomic hydrogen (HI) extends well beyond the o…
HCN and HCO+ emission in the disk of M31
Nathalie Brouillet, Sebastien Muller, Fabrice Herpin +2
We report observations made with the IRAM 30m radiotelescope in the HCN(1-0) and HCO+(1-0) lines towards a sample of molecular complexes (GMCs) in the disk of the Andromeda galaxy…
Properties and environment of the molecular complex near Holmberg IX
F. Boone, N. Brouillet, S. Huettemeister +6
This paper is aimed at providing new insight into the nature and origin of the molecular complex situated near the line of sight toward Holmberg IX in the M81 group of galaxies. Th…
Chemical Evolution of the Circumstellar Envelopes of Carbon-rich Post-AGB objects
F. Herpin, J. R. Goicoechea, J. R. Pardo +1
We have observed with the 30-m IRAM telescope, the CSO telescope and the ISOsatellite (Infrared Space Observatory) the rotational lines of CO at millimeter, submillimeter and far i…
28SiO, 29SiO and 30SiO excitation: effects of infrared line overlaps
F. Herpin, A. Baudry
We have investigated the influence of several line overlaps between 28SiO, 29SiO and 30SiO on maser emission from the envelopes of late-type stars using the Large Velocity Gradient…
O-bearing Molecules in Carbon-rich Proto-Planetary Objects
F. Herpin, J. Cernicharo
We present ISO LWS observations of the proto-planetary nebula CRL 618, a star evolving very fast to the planetary nebula stage. In addition to the lines of 12CO, 13CO, HCN and HNC,…
H2 emission from CRL 618
F. Herpin, J. Cernicharo, A. Heras
We present a complete study of the H2 infrared emission, including the pure rotational lines, of the proto Planetary Nebulae CRL 618 with the ISO SWS. A large number of lines are d…
29SiO (v=0) and 28SiO (v=1) J=2-1 maser emission from Orion IRc2
A. Baudry, F. Herpin, R. Lucas
We have observed with the IRAM interferometer at two different epochs and simultaneously the two transitions v=0, J=2-1 and v=1, J=2-1 of 29SiO and 28SiO in Orion IRc2. We have mad…