output
19952026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2017 · astro-ph.GAShow all

39 papers · 2 filters

astro-ph.GA2017★ 12 cited

A search for pre- and proto-brown dwarfs in the dark cloud Barnard 30 with ALMA

N. Huélamo, I. de Gregorio-Monsalvo, A. Palau +8

In this work we present ALMA continuum observations at 880 m of 30 sub-mm cores previously identified with APEX/LABOCA at 870m in the Barnard 30 cloud. The main goal is to ch…

astro-ph.GA2017★ 26 cited

Nitrogen oxide in protostellar envelopes and shocks: the ASAI survey

C. Codella, S. Viti, B. Lefloch +8

The high-sensitivity of the IRAM 30-m ASAI unbiased spectral survey in the mm-window allows us to detect NO emission towards both the Class I object SVS13-A and the protostellar ou…

astro-ph.GA2017

Cosmic Dust IX

Hiroshi Kimura, Ludmilla Kolokolova, Aigen Li +3

This is an editorial to the special issue on Cosmic Dust IX.

astro-ph.GA2017★ 31 cited

First measurement of the 14N/15N ratio in the analogue of the Sun progenitor OMC-2 FIR4

Claudine Kahane, Ali Jaber Al-Edhari, Cecilia Ceccarelli +3

We present a complete census of the 14N/15N isotopic ratio in the most abundant N-bearing molecules towards the cold envelope of the protocluster OMC-2 FIR4, the best known Sun pro…

astro-ph.GA2017★ 36 cited

Laboratory measurements and astronomical search for cyanomethanimine

Mattia Melosso, Alessio Melli, Cristina Puzzarini +9

C-cyanomethanimine (HNCHCN), existing in the two and isomeric forms, is a key prebiotic molecule, but, so far, only the isomer has been detected toward the massive star…

astro-ph.GA2017★ 35 cited

Far-infrared observations of a massive cluster forming in the Monoceros R2 filament hub

T. S. M. Rayner, M. J. Griffin, N. Schneider +29

We present far-infrared observations of Monoceros R2 (a giant molecular cloud at approximately 830 pc distance, containing several sites of active star formation), as observed at 7…

astro-ph.GA2017★ 25 cited

High spectral resolution observations of HNC3 and HCCNC in the L1544 prestellar core

C. Vastel, K. Kawaguchi, D. Quénard +4

HCCNC and HNC3 are less commonly found isomers of cyanoacetylene, HC3N, a molecule that is widely found in diverse astronomical sources. We want to know if HNC3 is present in sourc…

astro-ph.GA2017★ 16 cited

The Seven Sisters DANCe III: Projected spatial distribution

J. Olivares, E. Moraux, L. M. Sarro +6

Methods. We compute Bayesian evidences and Bayes Factors for a set of variations of the classical radial models by King (1962), Elson et al. (1987) and Lauer et al. (1995). The var…

astro-ph.GA2017★ 9 cited

Phylogenetic Analyses of Quasars and Galaxies

Didier Fraix-Burnet, Mauro D'Onofrio, Paola Marziani

Phylogenetic approaches have proven to be useful in astrophysics. We have recently published a Maximum Parsimony (or cladistics) analysis on two samples of 215 and 85 low-z quasars…

astro-ph.GA2017★ 18 cited

The onset of energetic particle irradiation in Class 0 protostars

C. Favre, A. Lopez-Sepulcre, C. Ceccarelli +11

The early stages of low-mass star formation are likely to be subject to intense ionization by protostellar energetic MeV particles. As a result, the surrounding gas is enriched in…

astro-ph.GA2017★ 16 cited

The L1157-B1 astrochemical laboratory: testing the origin of DCN

G. Busquet, F. Fontani, S. Viti +4

L1157-B1 is the brightest shocked region of the large-scale molecular outflow, considered the prototype of chemically rich outflows, being the ideal laboratory to study how shocks…

astro-ph.GA2017★ 99 cited

Complex organics in IRAS 4A revisited with ALMA and PdBI: Striking contrast between two neighbouring protostellar cores

A. López-Sepulcre, N. Sakai, R. Neri +13

We used the Atacama Large (sub-)Millimeter Array (ALMA) and the IRAM Plateau de Bure Interferometer (PdBI) to image, with an angular resolution of 0.5 (120 au) and 1 (235 a…

astro-ph.GA2017★ 34 cited

CALYPSO view of SVS 13A with PdBI: Multiple jet sources

Charlène Lefèvre, Sylvie Cabrit, Anaëlle J. Maury +9

Aims. We wish to clarify the origin of the multiple jet features emanating from the binary protostar SVS 13A (= VLA4A/VLA4B). Methods. We used the Plateau de Bure Interferometer to…

astro-ph.GA2017★ 90 cited

SOLIS II. Carbon-chain growth in the Solar-type protocluster OMC2-FIR4

F. Fontani, C. Ceccarelli, C. Favre +42

The interstellar delivery of carbon atoms locked into molecules might be one of the key ingredients for the emergence of life. Cyanopolyynes are carbon chains delimited at their tw…

astro-ph.GA2017★ 18 cited

Search for grain growth towards the center of L1544

A. Chacón-Tanarro, P. Caselli, L. Bizzocchi +4

In dense and cold molecular clouds dust grains are surrounded by thick icy mantles. It is however not clear if dust growth and coagulation take place before the switch-on of a prot…

astro-ph.GA2017★ 64 cited

Direct evidence of multiple reservoirs of volatile nitrogen in a protosolar nebula analogue

Pierre Hily-Blant, Victor Magalhães, Joel Kastner +3

Isotopic ratios are keys to understanding the origin and early evolution of the solar system in the context of Galactic nucleosynthesis. The large range of measured N/$^{15}…

astro-ph.GA2017★ 61 cited

Probing changes of dust properties along a chain of solar-type prestellar and protostellar cores in Taurus with NIKA

A. Bracco, P. Palmeirim, Ph. André +45

The characterization of dust properties in the interstellar medium (ISM) is key for star formation. Mass estimates are crucial to determine gravitational collapse conditions for th…

astro-ph.GA2017★ 40 cited

NH_3(1_0-0_0) in the pre-stellar core L1544

P. Caselli, L. Bizzocchi, E. Keto +11

Pre-stellar cores represent the initial conditions in the process of star and planet formation, therefore it is important to study their physical and chemical structure. Because of…

astro-ph.GA2017★ 59 cited

Chemical complexity induced by efficient ice evaporation in the Barnard 5 molecular cloud

Vianney Taquet, Eva Wirström, Steven B. Charnley +3

Cold gas-phase water has recently been detected in a cold dark cloud, Barnard 5 located in the Perseus complex, by targeting methanol peaks as signposts for ice mantle evaporation.…

astro-ph.GA2017★ 201 cited

Properties of Hi-GAL clumps in the inner Galaxy]{The Hi-GAL compact source catalogue. I. The physical properties of the clumps in the inner Galaxy ()

D. Elia, S. Molinari, E. Schisano +83

Hi-GAL is a large-scale survey of the Galactic plane, performed with Herschel in five infrared continuum bands between 70 and 500 m. We present a band-merged catalogue of spatia…

astro-ph.GA2017★ 47 cited

Detection of the HCNH and HCNH ions in the L1544 pre-stellar core

David Quénard, Charlotte Vastel, Cecilia Ceccarelli +3

The L1544 pre-stellar core was observed as part of the ASAI (Astrochemical Surveys At IRAM) Large Program. We report the first detection in a pre-stellar core of the HCNH and H…

astro-ph.GA2017★ 64 cited

On the discovery of fast molecular gas in the UFO/BAL quasar APM 08279+5255 at z=3.912

C. Feruglio, A. Ferrara, M. Bischetti +12

We have performed a high sensitivity observation of the UFO/BAL quasar APM 08279+5255 at z=3.912 with NOEMA at 3.2 mm, aimed at detecting fast moving molecular gas. We report the d…

astro-ph.GA2017★ 507 cited

High-Mass Star and Massive Cluster Formation in the Milky Way

Frederique Motte, Sylvain Bontemps, Fabien Louvet

This review examines the state-of-the-art knowledge of high-mass star and massive cluster formation, gained from ambitious observational surveys, which acknowledge the multi-scale…

astro-ph.GA2017★ 37 cited

Origin of warm and hot gas emission from low-mass protostars: Herschel-HIFI observations of CO J=16-15. I. Line profiles, physical conditions, and H2O abundance

L. E. Kristensen, E. F. van Dishoeck, J. C. Mottram +18

(Abridged) Through spectrally unresolved observations of high-J CO transitions, Herschel-PACS has revealed large reservoirs of warm (300 K) and hot (700 K) molecular gas around low…