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Using infrared photometric data extracted from the 2MASS, IRAS and MSX databases, 142 suspected young stellar objects (YSOs) are selected from about 2 million stars in the Camelopardalis segment of the Milky Way limited by Galactic…

Astrophysics · Physics 2009-06-25 V. Straizys , V. Laugalys

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…

Solar and Stellar Astrophysics · Physics 2016-06-09 M. Kun , G. Wolf-Chase , A. Moór , D. Apai , Z. Balog , J. O'Linger-Luscusk , G. Moriarty-Schieven

We investigate the nature of 48 low-level stellar overdensities (from Froebrich, Scholz, and Raftery catalogue - FSR07) projected towards the Galactic anticentre and derive fundamental parameters for the confirmed clusters, thus improving…

Astrophysics of Galaxies · Physics 2012-05-09 Denilso Camargo , Charles Bonatto , Eduardo Bica

We present Gould's Belt (GB) Spitzer IRAC and MIPS observations of the Lupus V and VI clouds and discuss them in combination with near-infrared (2MASS) data. Our observations complement those obtained for other Lupus clouds within the frame…

We investigated the distributions of classified young stellar object (YSO) in nine star-forming regions associated with Hii regions, namely Sh2-22, Sh2-19, Sh2-17, M16, M8, IC5070, Sh2-252, NGC2467 and M42, as a means of exploring the star…

Astrophysics of Galaxies · Physics 2025-11-13 Annarien G. Headley , James O. Chibueze

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…

Astrophysics · Physics 2014-11-18 L. Chavarria , L. Allen , J. L. Hora , C. Brunt , G. G. Fazio

We present an analysis of near-infrared time-series photometry in J, H, and K bands for about 100 epochs of a 1 square degree region of the Lynds 1003/1004 dark cloud in the Cygnus OB7 region. Augmented by data from the Wide-field Infrared…

Solar and Stellar Astrophysics · Physics 2015-06-16 Scott J. Wolk , Thomas S. Rice , Colin A. Aspin

The formation and properties of star clusters formed at the edges of H II regions are poorly known. We study stellar content, physical conditions, and star formation processes around a relatively unknown young H II region IRAS 10427-6032,…

Astrophysics of Galaxies · Physics 2018-03-20 Kaushar Vaidya , Souradeep Bhattacharya , Vatsal Panwar , Manash R. Samal , Wen-Ping Chen , Devendra K. Ojha

We report the results of a recent study of young star clusters (YSCs) in luminous blue compact galaxies (BCGs). The age distributions of the YSCs suggest that the starburst episode in Haro 11, ESO 185-IG13, and Mrk 930 started not more than…

Cosmology and Nongalactic Astrophysics · Physics 2011-07-05 Angela Adamo , Goeran Ostlin , Erik Zackrisson

The Pipe Nebula, a large nearby molecular cloud lacks obvious signposts of star formation in all but one of more than 130 dust extinction cores that have been identified within it. In order to quantitatively determine the current level of…

Solar and Stellar Astrophysics · Physics 2015-05-14 Jan Forbrich , Charles J. Lada , August A. Muench , João Alves , Marco Lombardi

The Taurus Molecular Cloud subtends a large solid angle on the sky, in excess of 250 square degrees. The search for legitimate Taurus members to date has been limited by sky coverage as well as the challenge of distinguishing members from…

We present a catalog of 652 young stellar objects (YSOs) in the Carina star-forming region. The catalog was constructed by combining near-infrared Ks-band variability from the VISTA Variables in the Via Lactea eXtended survey and…

We present a catalog of 1439 young stellar objects (YSOs) spanning the 1.42 deg^2 field surveyed by the Chandra Carina Complex Project (CCCP), which includes the major ionizing clusters and the most active sites of ongoing star formation…

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…

We present the initial results of our investigation of the star-forming complex W49, one of the youngest and most luminous massive star forming regions in our Galaxy. We used Spitzer/Infrared Array Camera (IRAC) data to investigate massive…

Solar and Stellar Astrophysics · Physics 2015-12-17 Gozde Saral , Joseph L. Hora , Sarah E. Willis , Xavier P. Koenig , Robert A. Gutermuth , A. Talat Saygac

We present new Spitzer photometry of the Eagle Nebula (M16, containing the optical cluster NGC 6611) combined with near-infrared photometry from 2MASS. We use dust radiative transfer models, mid-infrared and near-infrared color-color…

We present a multi-wavelength study to analyse the star formation process associated with the mid-infrared bubble CN 148 (H II region G10.3-0.1), which harbors an O5V-O6V star. The arc-shaped distribution of molecular CO(2-1) emission, the…

Astrophysics of Galaxies · Physics 2015-06-23 L. K. Dewangan , D. K. Ojha , J. M. C. Grave , K. K. Mallick

We present Spitzer, NIR and millimeter observations of the massive star forming regions W5-east, S235, S252, S254-S258 and NGC7538. Spitzer data is combined with near-IR observations to identify and classify the young population while 12CO…

Solar and Stellar Astrophysics · Physics 2015-06-19 L. Chavarria , L. Allen , C. Brunt , J. L. Hora , A. Muench , G. Fazio

We develop a new method to identify YSOs from star-forming regions using the photometry data from Spitzer's c2d Legacy Project. The aim is to obtain YSO lists as complete as possible for studying the statistical properties, such as Star…

Astrophysics of Galaxies · Physics 2015-06-12 Tien-Hao Hsieh , Shih-Ping Lai

IRAS 20050+2720 is young star forming region at a distance of 700 pc without apparent high mass stars. We present results of our multiwavelength study of IRAS 20050+2720 which includes observations by Chandra and Spitzer, and 2MASS and…

Solar and Stellar Astrophysics · Physics 2015-06-11 H. M. Guenther , S. J. Wolk , B. Spitzbart , R. A. Gutermuth , J. Forbrich , N. J. Wright , L. Allen , T. L. Bourke , S. T. Megeath , J. L. Pipher