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Related papers: Herschel Hi-GAL imaging of massive young stellar o…

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Deeply embedded and at distances of several kiloparsecs, massive young stellar objects (MYSOs) present numerous challenges for observation and study. In this work, we present spatially-resolved observations of one MYSO, AFGL 4176, together…

Solar and Stellar Astrophysics · Physics 2015-06-11 Paul Boley , Hendrik Linz , Roy van Boekel , Jeroen Bouwman , Thomas Henning , Andrey Sobolev

In the quest to understand high-mass star formation, it is necessary to understand that from which the high-mass stars will form -- the dense molecular gas clouds and clumps. The Herschel infrared GALactic plane survey (Hi-GAL) is a…

Astrophysics of Galaxies · Physics 2018-09-26 Erika Zetterlund , Jason Glenn , Erik Rosolowsky

We model the mass distributions of 40 high surface brightness spiral galaxies inside their optical radii, deriving parameters of mass models by matching the predicted velocities to observed velocity maps. We use constant mass-to-light disk…

Astrophysics · Physics 2009-11-10 Eric I. Barnes , J. A. Sellwood , Arthur Kosowsky

Triggered star formation around HII regions could be an important process. The Galactic HII region RCW 79 is a prototypical object for triggered high-mass star formation. We take advantage of Herschel data from the surveys HOBYS, "Evolution…

We present HST/NICMOS observations with 0.1" (15 AU) resolution of six young stellar objects in the Taurus star-formation region. The targets of our survey are three Class I IRAS sources (IRAS 04016+2610, IRAS 04248+2612, and IRAS…

The Red MSX Source (RMS) survey has identified a large sample of massive young stellar objects (MYSOs) and ultra compact (UC) HII regions from a sample of ~2000 MSX and 2MASS colour selected sources. Using a recent catalogue of molecular…

The Herschel Space Observatory enables us to accurately measure the bolometric output of starburst galaxies and active galactic nuclei (AGN) by directly sampling the peak of their far-infrared (IR) emission. Here we examine whether the…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 D. Elbaz , H. S. Hwang , B. Magnelli , E. Daddi , H. Aussel , B. Altieri , A. Amblard , P. Andreani , V. Arumugam , R. Auld , T. Babbedge , S. Berta , A. Blain , J. Bock , A. Bongiovanni , A. Boselli , V. Buat , D. Burgarella , N. Castro-Rodriguez , A. Cava , J. Cepa , P. Chanial , R. -R. Chary , A. Cimatti , D. L. Clements , A. Conley , L. Conversi , A. Cooray , M. Dickinson , H. Dominguez , C. D. Dowell , J. S. Dunlop , E. Dwek , S. Eales , D. Farrah , N. Forster Schreiber , M. Fox , A. Franceschini , W. Gear , R. Genzel , J. Glenn , M. Griffin , C. Gruppioni , M. Halpern , E. Hatziminaoglou , E. Ibar , K. Isaak , R. J. Ivison , G. Lagache , D. Le Borgne , E. Le Floc'h , L. Levenson , N. Lu , D. Lutz , S. Madden , B. Maffei , G. Magdis , G. Mainetti , R. Maiolino , L. Marchetti , A. M. J. Mortier , H. T. Nguyen , R. Nordon , B. O'Halloran , K. Okumura , S. J. Oliver , A. Omont , M. J. Page , P. Panuzzo , A. Papageorgiou , C. P. Pearson , I. Perez Fournon , A. M. Perez Garcıa , A. Poglitsch , M. Pohlen , P. Popesso , F. Pozzi , J. I. Rawlings , D. Rigopoulou , L. Riguccini , D. Rizzo , G. Rodighiero , I. G. Roseboom , M. Rowan-Robinson , A. Saintonge , M. Sanchez-Portal , P. Santini , M. Sauvage , B. Schulz , Douglas Scott , N. Seymour , L. Shao , D. L. Shupe , A. J. Smith , J. A. Stevens , E. Sturm , M. Symeonidis , L. Tacconi , M. Trichas , K. E. Tugwell , M. Vaccari , I. Valtchanov , J. Vieira , L. Vigroux , L. Wang , R. Ward , G. Wright , C. K. Xu , M. Zemcov

While the selection of strongly lensed galaxies with 500{\mu}m flux density S_500>100 mJy has proven to be rather straightforward (Negrello et al. 2010), for many applications it is important to analyze samples larger than the ones obtained…

We present infrared (IR) spectral energy distributions (SEDs) of individual star-forming regions in four extremely metal poor (EMP) galaxies with metallicity Z around Zsun/10 as observed by the Herschel Space Observatory. With the good…

Astrophysics of Galaxies · Physics 2016-03-23 Luwenjia Zhou , Yong Shi , Taino Diaz-Santos , Lee Armus , George Helou , Sabrina Stierwalt , Aigen Li

This study presents the mass distribution for a sample of 18 late-type galaxies in nine Hickson Compact Groups. We used rotation curves from high resolution 2D velocity fields of Fabry-Perot observations and J-band photometry from the 2MASS…

Astrophysics of Galaxies · Physics 2015-05-14 H. Plana , P. Amram , C. Mendes de Oliveira , C. Balkowski

We present interferometric and single-dish mid-infrared observations of a sample of massive young stellar objects (BN-type objects), using VLTI-MIDI (10 micron) and Subaru-COMICS (24.5 micron). We discuss the regions S140, Mon R2, M8E-IR,…

Astrophysics · Physics 2014-11-18 W. J. de Wit , M. G. Hoare , R. D. Oudmaijer , T. Fujiyoshi , ;

We present key results from the Herschel Orion Protostar Survey (HOPS): spectral energy distributions (SEDs) and model fits of 330 young stellar objects, predominantly protostars, in the Orion molecular clouds. This is the largest sample of…

Context - Circumstellar discs are ubiquitous around young stars, but rapidly dissipate their gas and dust on timescales of a few Myr. The Herschel space observatory allows for the study of the warm disc atmosphere, using far-infrared…

We perform lens modelling and source reconstruction of Submillimeter Array (SMA) data for a sample of 12 strongly lensed galaxies selected at 500$\mu$m in the Herschel Astrophysical Terahertz Large Area Survey H-ATLAS. A previous analysis…

The rarity of young massive stars combined with the fact that they are often deeply embedded has limited the understanding of their formation. Ground based mid-infrared (IR) interferometry is one way of securing the spatial resolution…

Solar and Stellar Astrophysics · Physics 2019-05-08 A. J. Frost , R. D. Oudmaijer , W. J. de Wit , S. L. Lumsden

We report on the Herschel Gould Belt survey (HGBS) of ChaII, focusing on the detection of Class I to III young stellar objects (YSOs). We aim at characterizing the circumstellar material around these YSOs and understanding which disk…

We study the structure of the medium surrounding sites of high-mass star formation to determine the interrelation between the HII regions and the environment from which they were formed. The density distribution of the surroundings is key…

We use Herschel Space Observatory data to place observational constraints on the peak and Rayleigh-Jeans slope of dust emission observed at 70-500 microns in the nearby spiral galaxy M81. We find that the ratios of wave bands between 160…

We present a sample of 80 candidate strongly lensed galaxies with flux density above 100mJy at 500{\mu}m extracted from the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS), over an area of 600 square degrees. Available imaging…

The results obtained from a study of the mass distribution of 36 spiral galaxies are presented. The galaxies were observed using Fabry-Perot interferometry as part of the GHASP survey. The main aim of obtaining high resolution H alpha 2D…

Astrophysics · Physics 2009-11-13 M. Spano , M. Marcelin , P. Amram , C. Carignan , B. Epinat , O. Hernandez