output
19912026
Showing 2012 · astro-ph.GAShow all

20 papers · 2 filters

astro-ph.GA2012★ 65 cited

A First Look at the Auriga-California Giant Molecular Cloud With Herschel and the CSO: Census of the Young Stellar Objects and the Dense Gas

Paul M. Harvey, Cassandra Fallscheer, Adam Ginsburg +7

We have mapped the Auriga/California molecular cloud with the Herschel PACS and SPIRE cameras and the Bolocam 1.1 mm camera on the Caltech Submillimeter Observatory (CSO) with the…

astro-ph.GA2012★ 143 cited

Changes Of Dust Opacity With Density in the Orion A Molecular Cloud

Arabindo Roy, Peter G. Martin, Danae Polychroni +12

We have studied the opacity of dust grains at submillimeter wavelengths by estimating the optical depth from imaging at 160, 250, 350, and 500 um from the Herschel Gould Belt Surve…

astro-ph.GA2012★ 52 cited

Recent star formation in the Lupus clouds as seen by Herschel

K. L. J. Rygl, M. Benedettini, E. Schisano +26

We present a study of the star formation histories of the Lupus I, III, and IV clouds using the Herschel 70-500 micron maps obtained by the Herschel Gould Belt Survey Key Project.…

astro-ph.GA2012★ 77 cited

Traces of past activity in the Galactic Centre

Gabriele Ponti, Mark R. Morris, Regis Terrier +1

The Milky Way centre hosts a supermassive Black Hole (BH) with a mass of ~4*10^6 M_Sun. Sgr A*, its electromagnetic counterpart, currently appears as an extremely weak source with…

astro-ph.GA2012★ 122 cited

Herschel observations of B1-bS and B1-bN: two first hydrostatic core candidates in the Perseus star-forming cloud

Stefano Pezzuto, D. Elia, E. Schisano +24

We report far-IR Herschel observations obtained between 70 m and 500 m of two star-forming dusty condensations, B1-bS and B1-bN, in the B1 region of the Perseus star-forming…

astro-ph.GA2012★ 89 cited

Interstellar matter and star formation in W5-E - A Herschel view

L. Deharveng, A. Zavagno, L. D. Anderson +7

W5-E has been observed with the Herschel-PACS and -SPIRE photometers, at 100, 160, 250, 350, and 500 microns. The dust temperature map shows a rather uniform temperature, in the ra…

astro-ph.GA2012★ 86 cited

The nature of the interstellar medium of the starburst low-metallicity galaxy Haro11: a multi-phase model of the infrared emission

D. Cormier, V. Lebouteiller, S. C. Madden +15

(abridged) Our goal is to describe the multi-phase ISM of the IR bright low-metallicity galaxy Haro 11, dissecting the photoionised and photodissociated gas components. We present…

astro-ph.GA2012★ 101 cited

Submillimetre line spectrum of the Seyfert galaxy NGC1068 from the Herschel-SPIRE Fourier Transform Spectrometer

Luigi Spinoglio, Miguel Pereira-Santaella, Gemma Busquet +13

The first complete submillimetre spectrum (190-670um) of the Seyfert 2 galaxy NGC1068 has been observed with the SPIRE Fourier Transform Spectrometer onboard the {\it Herschel} Spa…

astro-ph.GA2012★ 70 cited

Planck Intermediate Results. IX. Detection of the Galactic haze with Planck

Planck Collaboration, P. A. R. Ade, N. Aghanim +181

Using precise full-sky observations from Planck, and applying several methods of component separation, we identify and characterize the emission from the Galactic "haze" at microwa…

astro-ph.GA2012★ 131 cited

The Earliest Phases of Star Formation (EPoS): A Herschel Key Program - The precursors to high-mass stars and clusters

Sarah Ragan, Thomas Henning, Oliver Krause +14

(Abridged) We present an overview of the sample of high-mass star and cluster forming regions observed as part of the Earliest Phases of Star Formation (EPoS) Herschel Guaranteed T…

astro-ph.GA2012★ 89 cited

The H2O southern Galactic Plane Survey(HOPS): NH3 (1,1) and (2,2) catalogues

C. R. Purcell, S. N. Longmore, A. J. Walsh +19

The H2O Southern Galactic Plane Survey (HOPS) has mapped a 100 degree strip of the Galactic plane (-70deg > l > 30deg, |b| < 0.5deg) using the 22-m Mopra antenna at 12-mm wavelengt…

astro-ph.GA2012★ 82 cited

Interferometric Identification of a Pre-Brown Dwarf

Philippe André, Derek Ward-Thompson, Jane Greaves

It is not known whether brown dwarfs (stellar-like objects with masses less than the hydrogen-burning limit, 0.075 Msun) are formed in the same way as solar-type stars or by some o…

astro-ph.GA2012★ 172 cited

The two-phase formation history of spiral galaxies traced by the cosmic evolution of the bar fraction

Katarina Kraljic, Frédéric Bournaud, Marie Martig

We study the evolution of galactic bars and the link with disk and spheroid formation in a sample of zoom-in cosmological simulations. Our simulation sample focuses on galaxies wit…

astro-ph.GA2012★ 80 cited

Profiling filaments: comparing near-infrared extinction and submillimetre data in TMC-1

J. Malinen, M. Juvela, M. G. Rawlings +3

Interstellar filaments are an important part of star formation. To understand the structure of filaments, cross-section profiles are often fitted with Plummer profiles. This profil…

astro-ph.GA2012★ 226 cited

The spine of the swan: A Herschel study of the DR21 ridge and filaments in Cygnus X

M. Hennemann, F. Motte, N. Schneider +31

In order to characterise the cloud structures responsible for the formation of high-mass stars, we present Herschel observations of the DR21 environment. Maps of the column density…

astro-ph.GA2012★ 151 cited

Deep Silicate absorption features in Compton-thick AGN predominantly arise due to dust in the host galaxy

A. D. Goulding, D. M. Alexander, F. E. Bauer +5

We explore the origin of mid-infrared (mid-IR) dust extinction in all 20 nearby (z < 0.05) bona-fide Compton-thick (N_H > 1.5 x 10^24 cm^-2) AGN with hard energy (E > 10 keV) X-ray…

astro-ph.GA2012★ 120 cited

The Dust Properties of Bubble HII Regions as seen by Herschel

L. D. Anderson, A. Zavagno, L. Deharveng +10

Because of their relatively simple morphology, "bubble" HII regions have been instrumental to our understanding of star formation triggered by HII regions. With the far-infrared (F…

astro-ph.GA2012★ 21 cited

SOFIA observations of S106: Dynamics of the warm gas

Robert Simon, Nicola Schneider, Juergen Stutzki +6

Context. The HII region/PDR/molecular cloud complex S106 is excited by a single O-star. The full extent of the warm and dense gas close to the star has not been mapped in spectrall…

astro-ph.GA2012★ 163 cited

Galactic cold cores III. General cloud properties

M. Juvela, I. Ristorcelli, L. Pagani +15

We examine the cloud structure around the Planck detections in 71 fields observed with the Herschel SPIRE instrument. We wish to determine the general physical characteristics of t…

astro-ph.GA2012★ 51 cited

RAMSES-CH: A New Chemodynamical Code for Cosmological Simulations

C. Gareth Few, Stephanie Courty, Brad K. Gibson +3

We present a new chemodynamical code - Ramses-CH - for use in simulating the self-consistent evolution of chemical and hydrodynamical properties of galaxies within a fully cosmolog…