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相关论文: IRAS 20050+2720: Anatomy of a young stellar cluste…

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In this paper an extensive survey of the star forming complex Sh2-252 has been undertaken with an aim to explore its hidden young stellar population as well as to understand the structure and star formation history. This complex is composed…

太阳与恒星天体物理 · 物理学 2015-06-15 Jessy Jose , A. K. Pandey , M. R. Samal , D. K. Ojha , K. Ogura , J. S. Kim , N. Kobayashi , A. Goyal , N. Chauhan , C. Eswaraiah

We present results from a study of two luminous IRAS sources thought to be young massive star-forming regions and which have no previously detected radio continuum emission: IRAS 15596-5301 and IRAS 16272-4837. Our study incorporates…

天体物理学 · 物理学 2007-05-23 K. J. Brooks , G. Garay , D. Mardones , R. P. Norris , M. G. Burton

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 report the discovery of a young massive stellar cluster embedded in an extended HII region, invisible at optical wavelengths where the extinction is $A_V \approx 28$ magnitudes, associated with the IRAS source 16177-5018. $J, H$ and…

天体物理学 · 物理学 2009-11-10 Alexandre Roman-Lopes , Zulema Abraham , Jacques Raymond Daniel Lepine

Unbiased analysis shows that IRAS data reliably differentiate between the early and late stages of stellar evolution because objects at these stages clearly segregate in infrared color-color diagrams. Structure in these diagrams is…

天体物理学 · 物理学 2009-10-31 Zeljko Ivezic , Moshe Elitzur

The Sh2-294 HII region ionized by a single B0V star features several infrared excess sources, a photodissociation region, and also a group of reddened stars at its border. The star formation scenario in the region seems to be quite complex.…

星系天体物理 · 物理学 2015-06-05 M. R. Samal , A. K. Pandey , D. K. Ojha , N. Chauhan , J. Jose , B. Pandey

We present a multiwavelength study of the NGC 281 complex which contains the young cluster IC 1590 at the center, using deep wide-field optical UBVI_c photometry, slitless spectroscopy along with archival data sets in the near-infrared…

星系天体物理 · 物理学 2015-06-04 Saurabh Sharma , A. K. Pandey , J. C. Pandey , N. Chauhan , K. Ogura , D. K. Ojha , J. Borrissova , H. Mito , T. Verdugo , B. C. Bhatt

We present high-resolution, multiwavelength continuum and molecular-line images of the massive star forming region IRAS 18317-0757. The IR through mm spectral energy distribution can be approximated by a two-temperature model (25 and 63 K)…

天体物理学 · 物理学 2009-11-16 T. R. Hunter , Q. Zhang , T. K. Sridharan

(abbreviated) In the central part of the S254-S258 star forming complex, a dense embedded cluster of very young stellar objects (S255-IR) is sandwiched between the two HII regions S255 and S257. This interesting configuration had led to…

星系天体物理 · 物理学 2015-05-28 Paola Mucciarelli , Thomas Preibisch , Hans Zinnecker

Using the ISOPHOT Serendipity Survey (ISOSS) at 170um a sample of galactic star-forming regions exhibiting very cold dust temperatures (< 20 K) and high masses (> 100 M_sun) has been established. We characterise the star-forming content of…

天体物理学 · 物理学 2010-05-19 M. Hennemann , S. M. Birkmann , O. Krause , D. Lemke

We present sub-arcsec (FWHM ~ 0.5") J, H, K and L' images of a young stellar cluster associated with a candidate massive protostar IRAS22134+5834. The observations reveal a centrally symmetric, flattened cluster enclosing a central dark…

天体物理学 · 物理学 2009-11-10 M. S. Nanda Kumar , D. K. Ojha , C. J. Davis

It is well known that most of the stars form in rich clusters. However, recent $Spitzer$ observations have shown that a significant number of stars also form in distributed mode, origin of which is not well understood. In this work, we aim…

太阳与恒星天体物理 · 物理学 2019-02-20 Neelam Panwar , Manash R. Samal , A. K. Pandey , H. P . Singh , Saurabh Sharma

We present far-infrared, submillimetre, and millimetre observations of bright IRAS sources and outflows that are associated with massive CS clumps in the Monoceros OB1 Dark Cloud. Individual star-forming cores are identified within each…

天体物理学 · 物理学 2009-11-07 G. Wolf-Chase , G. Moriarty-Schieven , M. Fich , M. Barsony

We present an updated catalog of 1300 objects in the field of M31, including 670 likely star clusters of various types. Archival images were inspected to confirm cluster classifications where possible, but most of the classifications were…

We present results of an infrared study of the molecular cloud Lynds 1340, forming three groups of low and intermediate-mass stars. Our goals are to identify and characterise the young stellar population of the cloud, study the…

太阳与恒星天体物理 · 物理学 2016-06-09 M. Kun , G. Wolf-Chase , A. Moór , D. Apai , Z. Balog , J. O'Linger-Luscusk , G. Moriarty-Schieven

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…

天体物理学 · 物理学 2009-11-13 Á. Sánchez-Monge , A. Palau , R. Estalella , M. T. Beltrán , J. M. Girart

We explore here the young stellar populations in the Rosette Molecular Cloud (RMC) region with high spatial resolution X-ray images from the Chandra X-ray Observatory, which are effective in locating weak-lined T Tauri stars as well as…

太阳与恒星天体物理 · 物理学 2014-11-18 Junfeng Wang , Eric D. Feigelson , Leisa K. Townsley , Carlos G. Roman-Zuniga , Elizabeth Lada , Gordon Garmire

We present new images and photometry of the massive star forming complex Cygnus X obtained with IRAC and MIPS on the Spitzer Space Telescope. A combination of IRAC, MIPS, UKIDSS, and 2MASS data are used to identify and classify young…

Near-infrared photometry and narrow/broad-band imaging of the massive and luminous young stellar object IRAS 05361+3539 are presented. Imaging observations were made at Mt. Abu while the photometric data were taken from the 2MASS. From the…

天体物理学 · 物理学 2007-05-23 A. Chakraborty , D. K. Ojha , B. G. Anandarao , T. N. Rengarajan

We present a multi-wavelength study of the young stellar population in the Cygnus-X DR15 region. We studied young stars forming or recently formed at and around the tip of a prominent molecular pillar and an infrared dark cloud. Using a…