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相关论文: Sh2-138: Physical environment around a small clust…

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We present a multiwavelength study of the H II region Sh 2-301 (S301) using deep optical data, near-infrared data, radio continuum data and other archival data at longer wavelengths. A cluster of young stellar objects (YSOs) is identified…

We present a multiwavelength investigation of star formation activity towards the southern H II regions associated with IRAS 17160-3707, located at a distance of 6.2 kpc with a bolometric luminosity of 830000 Lsun.The ionised gas…

星系天体物理 · 物理学 2016-11-15 G. Nandakumar , V. S. Veena , S. Vig , A. Tej , S. K. Ghosh , D. K. Ojha

We present multiwavelength investigation of morphology, physical-environment, stellar contents and star formation activity in the vicinity of star-forming region Sh 2-100. It is found that the Sh 2-100 region contains seven HII regions of…

VLA radio continuum imaging reveals compact (<8 pc) ~1 mJy radio sources in the central 5" starburst region of the blue compact galaxy Henize 2-10. We interpret these radio knots as extremely young, ultra-dense HII regions. We model their…

天体物理学 · 物理学 2009-10-31 Henry A. Kobulnicky , Kelsey E. Johnson

To characterize a bright-rimmed cloud embedded in the HII region Sh2-48 searching for evidence of triggered star formation. We carried out observations towards a region of 2'x2' centered at RA=18h 22m 11.39s, dec.=-14deg 35m 24.81s (J2000)…

星系天体物理 · 物理学 2015-06-16 M. E. Ortega , S. Paron , E. Giacani , M. Rubio , G. Dubner

We present infrared and radio continuum observations of S 201 star forming region. A massive star cluster is observed in this region, which contains different classes of young stellar objects. The near-infrared colour-colour and…

天体物理学 · 物理学 2009-11-10 D. K. Ojha , S. K. Ghosh , V. K. Kulkarni , L. Testi , R. P. Verma , S. Vig

We have analyzed sensitive high spatial resolution archival radio continuum data at 1.3, 2.0, 3.6 and 6.0 cm as well as the H2O maser molecular line data obtained using the Very Large Array (VLA) in its hybrid AB configuration toward the…

天体物理学 · 物理学 2009-11-13 Luis A. Zapata , Silvia Leurini , Karl M. Menten , Peter Schilke , Rainer Rolffs , Carolin Hieret

We present a comprehensive study of star formation toward the H II region S155. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distribution of…

太阳与恒星天体物理 · 物理学 2015-06-19 Ya Fang Huang , Jin Zeng Li , Travis A. Rector , Zhou Fan

An investigation of the IRAS 16148-5011 region - a cluster at a distance of 3.6 kpc - is presented here, carried out using multiwavelength data in near-infrared (NIR) from the 1.4m Infrared Survey Facility telescope, mid-infrared (MIR) from…

星系天体物理 · 物理学 2015-06-23 K. K. Mallick , D. K. Ojha , M. Tamura , H. Linz , M. R. Samal , S. K. Ghosh

IRAS 12272-6240 is a complex star forming region with a compact massive dense clump and several associated masers, located at a well-determined distance of $d=9.3$ kpc from the Sun. For this study, we obtained sub-arcsec broad- and…

星系天体物理 · 物理学 2020-06-29 Mauricio Tapia , Paolo Persi , Miguel Roth , Davide Elia

Context: The discovery of new massive star clusters and massive stellar populations in previously known clusters in our Galaxy by means of infrared studies has changed our view of the Milky Way from an inactive to an active star-forming…

太阳与恒星天体物理 · 物理学 2012-03-21 S. Ramírez Alegría , A. Herrero , A. Marín-Franch , E. Puga , F. Najarro , J. A. Acosta Pulido , S. L. Hidalgo , S. Simón-Díaz

Using our deep optical and near-infrared photometry along with multiwavelength archival data, we here present a detailed study of the Galactic H II region Sh 2-305, to understand the star/star-cluster formation. On the basis of excess…

We report a study of the stellar content of the Near-infrared cluster [DBS2003]\,157 embedded in the extended H\,{\sc ii} region GAL\,331.31-00.34, which is associated with the IRAS source 16085-5138. $JHK$ photometry was carried out in…

To investigate the environment of HII region Sh2-163 and search for evidence of triggered star formation in this region, we performed a multi-wavelength study of this HII region. Most of our data were taken from large-scale surveys: 2MASS,…

星系天体物理 · 物理学 2017-02-14 Naiping Yu , Jun-Jie Wang , Nan Li

Aims. We present a multiwavelength study of two southern Galactic H II regions G346.056-0.021 and G346.077-0.056 which are located at a distance of 10.9 kpc. The distribution of ionized gas, cold and warm dust and the stellar population…

星系天体物理 · 物理学 2017-11-15 Swagat Ranjan Das , Anandmayee Tej , Sarita Vig , Tie Liu , Swarna K. Ghosh , Ishwara Chandra C. H.

IRAS 17256-3631 is a southern Galactic massive star forming region located at a distance of 2 kpc. In this paper, we present a multiwavelength investigation of the embedded cluster, the HII region, as well as the parent cloud. Radio images…

星系天体物理 · 物理学 2016-01-27 V. S. Veena , S. Vig , A. Tej , W. P. Varricatt , S. K. Ghosh , T. Chandrasekhar , N. M. Ashok

Based on a multiwavelength study, the interstellar medium and young stellar objects (YSOs) around the HII region Sh2-82 have been analyzed. Two molecular clumps were found from the archival data of the Galactic Ring Survey, and using the…

星系天体物理 · 物理学 2016-05-11 Nai-Ping Yu Jun-Jie Wang

We present Spitzer-IRAC, NOAO 2.1meter-Flamingos, Keck-NIRC, and FCRAO-SEQUOIA observations of the massive star forming complex S254-S258, covering an area of 25x20 arc-minutes. Using a combination of the IRAC and NIR data, we identify and…

天体物理学 · 物理学 2014-11-18 L. Chavarria , L. Allen , J. L. Hora , C. Brunt , G. G. Fazio

The southern Galactic high mass star-forming region, G351.6-1.3, is a HII region-molecular cloud complex with a luminosity of 2.0 x 10^5 L_sun, located at a distance of 2.4 kpc. In this paper, we focus on the investigation of the associated…

星系天体物理 · 物理学 2015-06-19 S. Vig , S. K. Ghosh , D. K. Ojha , R. P. Verma , M. Tamura

We present observations of 1.2-mm dust continuum emission, made with the Swedish ESO Submillimeter Telescope, towards eighteen luminous IRAS point sources, all with colors typical of compact HII regions and associated with CS(2-1) emission,…

天体物理学 · 物理学 2011-02-11 Guido Garay , Diego Mardones , Kate J. Brooks , Liza Videla , Yanett Contreras
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