10.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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34 papers · 2 filters
Structure of the nucleus of 1928+738
J. Roland, S. Britzen, E. Kun +3
Modeling of the trajectories of VLBI components ejected by the nucleus of 1928+738 shows the VLBI jet contains three families of trajectories, i.e. VLBI components are ejected from…
Fast molecular jet from L1157-mm
M. Tafalla, R. Bachiller, B. Lefloch +4
L1157-mm powers a molecular outflow that is well-known for its shock-induced chemical activity in several hot-spots. We have studied the molecular emission toward L1157-mm searchin…
Anatomy of the AGN in NGC 5548: II. The Spatial, Temporal and Physical Nature of the Outflow from HST/COS Observations
N. Arav, C. Chamberlain, G. A. Kriss +30
(Abridged) Our deep multiwavelength campaign on NGC 5548 revealed an unusually strong X-ray obscuration. The resulting dramatic decrease in incident ionizing flux allowed us to con…
The density structure of the L1157 molecular outflow
A. I. Gómez-Ruiz, C. Codella, B. Lefloch +6
We present a multiline CS survey towards the brightest bow-shock B1 in the prototypical chemically active protostellar outflow L1157. We made use of (sub-)mm data obtained in the f…
Collisional excitation of water by hydrogen atoms
F. Daniel, A. Faure, P. J. Dagdigian +3
We present quantum dynamical calculations that describe the rotational excitation of HO due to collisions with H atoms. We used a recent, high accuracy potential energy surface…
Hyperfine excitation of NH by H: Toward a revision of NH abundance in cold molecular clouds
François Lique, Fabien Daniel, Laurent Pagani +1
The modelling of emission spectra of molecules seen in interstellar clouds requires the knowledge of collisional rate coefficients. Among the commonly observed species, NH…
SiO excitation from dense shocks in the earliest stages of massive star formation
S. Leurini, C. Codella, A. López-Sepulcre +3
Molecular outflows are a direct consequence of accretion, and therefore they represent one of the best tracers of accretion processes in the still poorly understood early phases of…
Tentative Detection of the Nitrosylium Ion in Space
J. Cernicharo, S. Bailleux, E. Alekseev +8
We report the tentative detection in space of the nitrosylium ion, NO. The observations were performed towards the cold dense core Barnard 1-b. The identification of the NO…
Planck intermediate results. XXIX. All-sky dust modelling with Planck, IRAS, and WISE observations
Plank Collaboration, P. A. R. Ade, N. Aghanim +195
We present all-sky modelling of the high resolution Planck, IRAS, and WISE infrared (IR) observations using the physical dust model presented by Draine and Li in 2007 (DL). We stud…
Collisional excitation of singly deuterated ammonia NHD by H
F. Daniel, A. Faure, L. Wiesenfeld +3
The availability of collisional rate coefficients with H is a pre-requisite for interpretation of observations of molecules whose energy levels are populated under non local th…
Signatures of warm carbon monoxide in protoplanetary discs observed with Herschel SPIRE
M. H. D. van der Wiel, D. A. Naylor, I. Kamp +9
Molecular gas constitutes the dominant mass component of protoplanetary discs. To date, these sources have not been studied comprehensively at the longest far-infrared and shortest…
APEX observations of supernova remnants - I. Non-stationary MHD-shocks in W44
S. Anderl, A. Gusdorf, R. Güsten
Aims. The interaction of supernova remnants (SNRs) with molecular clouds gives rise to strong molecular emission in the far-IR and sub-mm wavelength regimes. The application of MHD…
A common column density threshold for scattering at 3.6 mum and water-ice in molecular clouds
M. Andersen, W-F. Thi, J. Steinacker +1
Context: Observations of scattered light in the 1-5 m range have revealed dust grains in molecular cores with sizes larger than commonly inferred for the diffuse interstellar me…
Dust properties inside molecular clouds from coreshine modeling and observations
Charlène Lefèvre, Laurent Pagani, Mika Juvela +11
Context. Using observations to deduce dust properties, grain size distribution, and physical conditions in molecular clouds is a highly degenerate problem. Aims. The coreshine phen…
Cosmic ray induced ionisation of a molecular cloud shocked by the W28 supernova remnant
Solenn Vaupré, Pierre Hily-Blant, Cecilia Ceccarelli +3
Cosmic rays are an essential ingredient in the evolution of the interstellar medium, as they dominate the ionisation of the dense molecular gas, where stars and planets form. Howev…
The HIFI spectral survey of AFGL 2591 (CHESS). II. Summary of the survey
M. Kazmierczak-Barthel, F. F. S. van der Tak, F. P. Helmich +3
This paper presents the richness of submillimeter spectral features in the high-mass star forming region AFGL 2591. As part of the CHESS (Chemical Herschel Survey of Star Forming R…
Planck intermediate results. XIX. An overview of the polarized thermal emission from Galactic dust
Planck Collaboration, P. A. R. Ade, N. Aghanim +199
This paper presents the large-scale polarized sky as seen by Planck HFI at 353 GHz, which is the most sensitive Planck channel for dust polarization. We construct and analyse large…
CH observations toward the Orion Bar
Z. Nagy, V. Ossenkopf, F. F. S. Van der Tak +3
CH is one of the first radicals to be detected in the interstellar medium. Its higher rotational transitions have recently become available with the Herschel Space Observatory.…
Planck intermediate results. XXII. Frequency dependence of thermal emission from Galactic dust in intensity and polarization
Planck Collaboration, P. A. R. Ade, M. I. R. Alves +177
Planck has mapped the intensity and polarization of the sky at microwave frequencies with unprecedented sensitivity. We make use of the Planck 353 GHz I, Q, and U Stokes maps as du…
Planck intermediate results. XXI. Comparison of polarized thermal emission from Galactic dust at 353 GHz with interstellar polarization in the visible
Planck Collaboration, P. A. R. Ade, N. Aghanim +192
The Planck survey provides unprecedented full-sky coverage of the submillimetre polarized emission from Galactic dust, bringing new constraints on the properties of dust. The dust…
Localized SiO emission triggered by the passage of the W51C SNR shock
G. Dumas, S. Vaupré, C. Ceccarelli +4
The region towards W51C is a convincing example of interaction between a supernova remnant and a surrounding molecular cloud. Large electron abundances have been reported towards t…
What microwave astronomical spectroscopy can tell you about the carriers of the DIBS
Harvey Liszt
Astronomical microwave spectroscopy has greatly broadened the inventory of identifiable chemical species in diffuse molecular gas and is an increasingly effective way to measure th…
Coreshine in L1506C - Evidence for a primitive big-grain component or indication for a turbulent core history?
J. Steinacker, C. W. Ormel, M. Andersen +1
The recently discovered coreshine effect can aid in exploring the core properties and in probing the large grain population of the ISM. We discuss the implications of the coreshine…
HCO, c-C3H and CF+ : three new molecules in diffuse, translucent and "spiral-arm'' clouds
H. Liszt, J. Pety, M. Gerin +1
%methods {We used the EMIR receiver and FTS spectrometer at the IRAM 30m to construct absorption spectra toward bright extra-galactic background sources at 195 kHz spectral resolut…