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Related papers: Star formation in the Cometary Globule Ori I-2

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We present mid-infrared (MIR) observations, made with the TIMMI2 camera on the ESO 3.6 m telescope, toward 14 young massive star-forming regions. All regions were imaged in the N band, and nine in the Q band, with an angular resolution of ~…

Astrophysics of Galaxies · Physics 2011-02-11 Esteban F. E. Morales , Diego Mardones , Guido Garay , Kate J. Brooks , Jaime E. Pineda

Cometary globule 12 is a relatively little investigated medium- and low mass star forming region 210 pc above the Galactic plane. NIR J, H, and Ks imaging and stellar photometry is used to analyse the stellar content and the structure of CG…

Astrophysics of Galaxies · Physics 2015-05-14 Lauri K. Haikala , Bo Reipurth

We have studied the environment of the FU Ori type star V582 Aur. Our aim is to explore the star-forming region associated with this young eruptive star. Using slitless spectroscopy we searched for H alpha emission stars within a field of…

Solar and Stellar Astrophysics · Physics 2017-04-19 Maria Kun , Elza Szegedi-Elek , Bo Reipurth

Nearby young clusters are privileged places to study the star formation history. Over the last decade, the sigma-Orionis cluster has been a prime location for the study of young very low mass stars, substellar and isolated planetary mass…

We investigated six H II regions with infrared, bright rimmed bubble or cometary morphology, in search of quantitative evidence for triggered star formation, both collect and collapse and radiatively driven implosion. We identified and…

We examine eight young stellar objects in the OMC-2 star forming region based on observations from the SOFIA/FORCAST early science phase, the Spitzer Space Telescope, the Herschel Space Observatory, 2MASS, APEX, and other results in the…

We present Spitzer/IRAC photometry on the star-forming HII region N 90, related to the young stellar association NGC 602 in the Small Magellanic Cloud. Our photometry revealed bright mid-infrared sources, which we classify with the use of a…

Astrophysics · Physics 2010-05-12 Dimitrios A. Gouliermis , Sascha P. Quanz , Thomas Henning

The Canis Major OB1 Association has an intriguing scenario of star formation, especially in the Canis Major R1 (CMa R1) region traditionally assigned to a reflection nebula, but in reality an ionized region. This work is focused on the…

Astrophysics of Galaxies · Physics 2018-02-07 T. Santos-Silva , J. Gregorio-Hetem , T. Montmerle , B. Fernandes , B. Stelzer

We present Spitzer Space Telescope IRAC and MIPS observations toward a sample of nine high-mass star forming regions at a distance of around 2 kpc. Based on IRAC and MIPS 24 $\mu$m photometric results and 2MASS JHKs data, we carry out a…

We have carried out a near-infrared imaging survey of luminous young stellar outflow candidates using the United Kingdom Infrared Telescope. Observations were obtained in the broad band K (2.2 mu) and through narrow band filters at the…

Solar and Stellar Astrophysics · Physics 2015-05-18 Watson P. Varricatt , Christopher J. Davis , Suzanne Ramsay , Stephen P. Todd

We have observed the IC1396W globule in a narrow band filter centred on the 1-0 S(1) line of molecular hydrogen and in the J, H, K' broad-band filters. Three molecular hydrogen outflows could be identified by means of H2 emission. The…

Astrophysics · Physics 2009-11-07 D. Froebrich , A. Scholz

We present XMM-Newton observations of the young (~2-5 Myr) cluster around the hot (O9.5V) star sigma Orionis AB, aimed at obtaining a high resolution RGS spectrum of the hot star as well as EPIC imaging data for the whole field. We show…

Astrophysics · Physics 2009-11-10 J. Sanz-Forcada , E. Franciosini , R. Pallavicini

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 study a very young star-forming region in the outer Galaxy that is the most concentrated source of outflows in the Spitzer Space Telescope GLIMPSE360 survey. This region, dubbed CMa-l224, is located in the Canis Major OB1 association.…

Young Stellar Objects (YSOs) in the inner Galactic region $10^0 < l < 15^0$ and $-1^0 < b < 1^0$ are studied using GLIMPSE images and GLIMPSE data catalogue. A total number of 1107 Class I and 1566 Class II sources are identified in this…

Solar and Stellar Astrophysics · Physics 2013-07-22 B Bhavya , Annapurni Subramaniam , V C Kuriakose

We present results on the star-formation activity of an optically obscured region containing an embedded cluster (S255-IR) and molecular gas between two evolved HII regions S255 and S257. We have studied the complex using optical,…

Astrophysics of Galaxies · Physics 2015-05-28 D. K. Ojha , M. R. Samal , A. K. Pandey , B. C. Bhatt , S. K. Ghosh , Saurabh Sharma , M. Tamura , V. Mohan , I. Zinchenko

We report a discovery of young stellar objects associated with a molecular cloud at the edge of the optical disk of our Galaxy. This cloud is denoted as Cloud 2 in the list by Digel et al. and it is one of the most distant molecular clouds…

Astrophysics · Physics 2009-10-31 Naoto Kobayashi , Alan T. Tokunaga

We present 5--38 $\mu$m spectroscopic observations of a sample of 68 ISOGAL sources with unknown natures, taken with the Spitzer Infrared Spectrograph. Based on the characteristics and the slope of their spectra we classified the sources as…

Astrophysics of Galaxies · Physics 2012-02-16 K. Immer , F. Schuller , A. Omont , K. M. Menten

We are conducting a survey of several regions of high-mass star formation to assess their content and structure. The observations include Spitzer observations, ground-based optical and near-IR imaging surveys, and optical and IR spectra of…

Astrophysics · Physics 2011-03-10 L. E. Allen , J. L. Hora , S. T. Megeath , L. K. Deutsch , G. G. Fazio , L. Chavarria , R. W. Dell

Eruptive stars are a class of young stellar objects that show an abrupt increase in their luminosity. These burst-like episodes are thought to dominate the stellar accretion process during the class 0/class I stage. We present an overview…

Solar and Stellar Astrophysics · Physics 2024-03-20 A. Zurlo , P. Weber , S. Pérez , L. Cieza , C. Ginski , R. G. van Holstein , D. Principe , A. Garufi , A. Hales , J. Kastner , E. Rigliaco , G. Ruane , M. Benisty , C. Manara
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