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Related papers: Embedded Stellar Clusters in the W3/W4/W5 Molecula…

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(Abridged) We have observed CS and C17O lines, and 1.2 mm cont. emission towards a sample of 130 high-mass protostellar candidates with DEC<-30 deg. This is the first step of the southern extension of a project started more than a decade…

Astrophysics · Physics 2009-11-10 F. Fontani , M. T. Beltran , J. Brand , R. Cesaroni , L. Testi , S. Molinari , C. M. Walmsley

Massive stars play a dominant role in the process of clustered star formation, with their feedback into the molecular cloud through ionizing radiation, stellar winds and outflows. The formation process of massive stars is poorly constrained…

Solar and Stellar Astrophysics · Physics 2015-06-16 L. E. Ellerbroek , A. Bik , L. Kaper , K. M. Maaskant , M. Paalvast , F. Tramper , H. Sana , L. B. F. M. Waters , Z. Balog

Radiative feedback from massive stars plays a central role in the evolution of molecular clouds and the interstellar medium. This paper presents a multi-wavelength analysis of the bright-rimmed cloud, BRC 44, which is located at the…

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…

Astrophysics · Physics 2009-11-10 D. K. Ojha , S. K. Ghosh , V. K. Kulkarni , L. Testi , R. P. Verma , S. Vig

We have identified 41 infrared dark clouds from the 8 micron maps of the Midcourse Space Experiment (MSX), selected to be found within one square degree areas centered on known ultracompact HII regions. We have mapped these infrared dark…

We present the results of millimeter and centimeter continuum observations, made with the IRAM 30m telescope and the VLA, toward a sample of 11 luminous IRAS sources classified as high-mass protostellar object candidates. We find 1.2 mm…

Astrophysics · Physics 2009-11-13 Á. Sánchez-Monge , A. Palau , R. Estalella , M. T. Beltrán , J. M. Girart

Young Massive Clusters (YMCs) and Super Star Clusters (SSCs) represent an extreme mode of star formation. Far-infrared imaging of the Magellanic Clouds has identified one potential embedded SSC, HSO BMHERICC J72.971176-69.391112 (HH in…

Astrophysics of Galaxies · Physics 2021-04-07 M. Andersen , H. Zinnecker , A. S. Hirschauer , O. Nayak , M. Meixner

Using the new capabilities of the Spitzer Space Telescope and extensive multiwavelength data from the Spitzer Infrared Nearby Galaxies Survey (SINGS), it is now possible to study the infrared properties of star formation in nearby galaxies…

We present an analysis of IRAS maps of five molecular clouds: Orion, Ophiuchus, Perseus, Taurus, and Lupus. For the classification and description of these astrophysical maps, we use a newly developed technique which considers all maps of a…

Astrophysics · Physics 2009-10-22 Jennifer J. Wiseman , Fred C. Adams

We use mid-infrared Spitzer spectroscopy and far-infrared Herschel photometry for a sample of twenty main sequence O9--B2 stars in the Small Magellanic Cloud (SMC) with strong 24 micron excesses to investigate the origin of the mid-IR…

In L\"ovdal et al, we presented a data-driven method for clustering in Integrals of Motion space and applied it to a large sample of nearby halo stars with 6D phase-space information. We identified a large number of clusters, many of which…

Astrophysics of Galaxies · Physics 2022-09-14 Tomás Ruiz-Lara , Tadafumi Matsuno , S. Sofie Lövdal , Amina Helmi , Emma Dodd , Helmer H. Koppelman

A multi-wavelength investigation of the star forming complex IRAS 20286+4105, located in the Cygnus-X region, is presented here. Near-infrared K-band data is used to revisit the cluster / stellar group identified in previous studies. The…

Solar and Stellar Astrophysics · Physics 2016-11-10 Varsha R , S. R. Das , A. Tej , S. Vig , S. K. Ghosh , D. K. Ojha

We present Chandra observations of the massive star-forming region S106, a prominent HII region in Cygnus, associated with an extended molecular cloud and a young cluster. The nebula is excited by a single young massive star located at the…

Astrophysics · Physics 2009-11-10 G. Giardino , F. Favata , G. Micela

We present {\it Spitzer} IRAC mid-infrared photometry on the massive star forming region AFGL 437 (IRAS 03035+5819). From the IRAC colour-colour diagram, we identify several new embedded YSOs within 64 arcsec of the central compact cluster.…

Astrophysics of Galaxies · Physics 2009-12-18 L. K. Dewangan , B. G. Anandarao

We present deep near-infrared (J, H, Ks) images toward an embedded cluster which lies in a C18O clump in the cloud C of the Vela Molecular Ridge. This cluster has at least ~ 350 members and a radius of ~ 0.5 pc. The stellar surface number…

The past decade has seen an increase of star formation studies made at the molecular cloud scale, motivated mostly by the deployment of a wealth of sensitive infrared telescopes and instruments. Embedded clusters, long recognised as the…

Astrophysics of Galaxies · Physics 2018-02-07 Joana Ascenso

We present a multiwavelength study of the formation of massive stellar clusters, their emergence from cocoons of gas and dust, and their feedback on surrounding matter. Using data that span from radio to optical wavelengths, including…

Astrophysics · Physics 2009-12-04 A. M. Gilbert , W. D. Vacca

We conduct a Galactic census of Giant HII regions, based on the all sky 6cm dataset of Kuchar & Clark, plus the kinematic distances obtained by Russeil. From an inspection of mid-IR Mid-course Space Experiment (MSX) and far-IR IRAS Sky…

Astrophysics · Physics 2009-11-10 Peter S Conti , Paul A. Crowther

We observationally investigate star formation (SF) process occurring in AFGL 5157 (area ~13.5 pc X 13.5 pc) using a multi-wavelength approach. Embedded filaments are seen in the {\it Herschel} column density map, and one of them is…

Astrophysics of Galaxies · Physics 2019-11-06 L. K. Dewangan

Using deep photometric data from WFC@INT and [email protected] we measure the outer number density profiles of 19 stellar clusters located in the inner region of the Milky Way halo (within a Galactocentric distance range of 10-30 kpc) in order to…

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