40.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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29 papers · 2 filters
Chemistry of TMC-1 with multiply deuterated species and spin chemistry of H2, H2+, H3+ and their isotopologues
L. Majumdar, P. Gratier, M. Ruaud +6
Deuterated species are unique and powerful tools in astronomy since they can probe the physical conditions, chemistry, and ionization level of various astrophysical media. Recent o…
Efficient photochemistry of coronene: water complexes
J. A. Noble, C. Jouvet, C. Aupetit +2
The photochemistry of ices with polycyclic aromatic hydrocarbons (PAHs) has been extensively studied, but to date no investigation has been made of PAHs in interaction with low num…
Dense gas in low-metallicity galaxies
J. Braine, Y. Shimajiri, P. André +4
Stars form out of the densest parts of molecular clouds. Far-IR emission can be used to estimate the Star Formation Rate (SFR) and high dipole moment molecules, typically HCN, trac…
Dense Gas in the Outer Spiral Arm of M51
Hao Chen, Jonathan Braine, Yu Gao +2
There is a linear relation between the mass of dense gas, traced by the HCN(1-0) luminosity, and the star formation rate (SFR), traced by the far-infrared luminosity. Recent observ…
The anatomy of the Orion B Giant Molecular Cloud: A local template for studies of nearby galaxies
Jérôme Pety, Viviana V. Guzmán, Jan H. Orkisz +11
We aim to develop the Orion B Giant Molecular Cloud (GMC) as a local template for interpreting extra-galactic molecular line observations. We use the wide-band receiver at the IRAM…
Toroidal figures of equilibrium from a 2nd-order accurate, accelerated SCF-method with subgrid approach
J. -M. Huré, F. Hersant
We compute the structure of a self-gravitating torus with polytropic equation-of-state (EOS) rotating in an imposed centrifugal potential. The Poisson-solver is based on isotropic…
A New Reference Chemical Composition for TMC-1
P. Gratier, L. Majumdar, M. Ohishi +4
Recent detections of complex organic molecules in dark clouds have rekindled interest in the astrochemical modeling of these environments. Because of its relative closeness and ric…
Gaia Data Release 1: Astrometry - one billion positions, two million proper motions and parallaxes
L. Lindegren, U. Lammers, U. Bastian +80
Gaia Data Release 1 (Gaia DR1) contains astrometric results for more than 1 billion stars brighter than magnitude 20.7 based on observations collected by the Gaia satellite during…
The molecular gas mass of M33
P. Gratier, J. Braine, K. Schuster +15
[Abridged] Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done usin…
Importance of the H2 abundance in protoplanetary disk ices for the molecular layer chemical composition
V. Wakelam, M. Ruaud, F. Hersant +4
Protoplanetary disks are the target of many chemical studies (both observational and theoretical) as they contain the building material for planets. Their large vertical and radial…
Structure and kinematics of the clouds surrounding the Galactic mini-starburst W43 MM1
T. Jacq, J. Braine, F. Herpin +2
Massive stars have a major influence on their environment yet their formation is difficult to study. W43 is a highly luminous galactic massive star forming region at a distance of…
Compression and ablation of the photo-irradiated cloud the Orion Bar
Javier R. Goicoechea, J. Pety, S. Cuadrado +7
The Orion Bar is the archetypal edge-on molecular cloud surface illuminated by strong ultraviolet radiation from nearby massive stars. Owing to the close distance to Orion (about 1…
First image of the L1157 molecular jet by the CALYPSO IRAM-PdBI survey
L. Podio, C. Codella, F. Gueth +12
Fast jets are thought to be a crucial ingredient of star formation because they might extract angular momentum from the disk and thus allow mass accretion onto the star. However, i…
Triangulum galaxy viewed by Planck
F. De Paolis, V. G. Gurzadyan, A. A. Nucita +9
We used Planck data to study the M33 galaxy and find a substantial temperature asymmetry with respect to its minor axis projected onto the sky plane. This temperature asymmetry cor…
NIBLES - an HI census of stellar mass selected SDSS galaxies: I. The Nançay HI survey
W. van Driel, Z. Butcher, S. Schneider +10
To investigate galaxy properties as a function of their total stellar mass, we obtained 21cm HI line observations at the 100-m class Nançay Radio Telescope of 2839 galaxies from th…
Temperature Dependent Product Yields for the Spin Forbidden Singlet Channel of the C(3P) + C2H2 Reaction
Kevin M. Hickson, Jean-Christophe Loison, Valentine Wakelam
The atomic hydrogen formation channels of the C + C2H2 reaction have been investigated using a continuous supersonic flow reactor over the 52 K 296 K temperature range. H-atoms wer…
Dust Properties in HII Regions in M33
M. Relano, R. Kennicutt, U. Lisenfeld +11
The conversion of the IR emission into star formation rate can be strongly dependent on the physical properties of the dust, which are affected by the environmental conditions wher…
Characterizing filaments in regions of high-mass star formation: High-resolution submilimeter imaging of the massive star-forming complex NGC 6334 with ArTéMiS
Ph. André, V. Revéret, V. Könyves +28
Herschel observations of nearby molecular clouds suggest that interstellar filaments and prestellar cores represent two fundamental steps in the star formation process. The observa…
Survey Observations of a Possible Glycine Precursor, Methanimine (CHNH)
Taiki Suzuki, Masatoshi Ohishi, Tomoya Hirota +3
We conducted survey observations of a glycine precursor, methanimine or methylenimine (CHNH), with the NRO 45 m telescope and the SMT telescope towards 12 high-mass and two low…
Hi-GAL, the Herschel infrared Galactic Plane Survey: photometric maps and compact source catalogues. First data release for Inner Milky Way: +68°> l > -70°
S. Molinari, E. Schisano, D. Elia +62
(Abridged) We present the first public release of high-quality data products (DR1) from Hi-GAL, the {\em Herschel} infrared Galactic Plane Survey. Hi-GAL is the keystone of a suite…
Gas and grain chemical composition in cold cores as predicted by the Nautilus 3-phase model
Maxime Ruaud, Valentine Wakelam, Franck Hersant
We present an extended version of the 2-phase gas-grain code NAUTILUS to the 3-phase modelling of gas and grain chemistry of cold cores. In this model, both the mantle and the surf…
Probing the CO and methanol snow lines in young protostars. Results from the CALYPSO IRAM-PdBI survey
S. Anderl, S. Maret, S. Cabrit +9
Context. "Snow lines", marking regions where abundant volatiles freeze out onto the surface of dust grains, play an important role for planet growth and bulk composition in protopl…
The C(3P) + NH3 reaction in interstellar chemistry: I. Investigation of the product formation channels
Jeremy Bourgalais, Michael Capron, Ranjith Kumar Abhinavam Kailasanathan +6
The product formation channels of ground state carbon atoms, C(3P), reacting with ammonia, NH3, have been investigated using two complementary experiments and electronic structure…
The C(3P) + NH3 reaction in interstellar chemistry: II. Low temperature rate constants and modeling of NH, NH2 and NH3 abundances in dense interstellar clouds
Kevin M. Hickson, Jean-Christophe Loison, Jérémy Bourgalais +4
A continuous supersonic flow reactor has been used to measure rate constants for the C + NH3 reaction over the temperature range 50 to 296 K. C atoms were created by the pulsed las…