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相关论文: A study of the massive star forming region M8 usin…

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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 present the {\it Spitzer}-IRAC images of the S235 star forming complex that includes the East~1 & 2, Central and S235 A & B regions. In addition, we present the near-infrared images of the S235 A & B regions. The IRAC photometry reveals…

星系天体物理 · 物理学 2015-05-27 L. K. Dewangan , B. G. Anandarao

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…

天体物理学 · 物理学 2011-03-10 L. E. Allen , J. L. Hora , S. T. Megeath , L. K. Deutsch , G. G. Fazio , L. Chavarria , R. W. Dell

Messier 8 (M8), one of the brightest HII regions in our Galaxy, is associated with two prominent massive star-forming regions: M8-Main, the particularly bright part of the large scale HII region (mainly) ionised by the stellar system…

星系天体物理 · 物理学 2021-01-04 M. Tiwari , K. M. Menten , F. Wyrowski , A. Giannetti , M. -Y. Lee , W. -J. Kim , J. P. Pérez-Beaupuits

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…

天体物理学 · 物理学 2010-05-12 Dimitrios A. Gouliermis , Sascha P. Quanz , Thomas Henning

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 ~…

星系天体物理 · 物理学 2011-02-11 Esteban F. E. Morales , Diego Mardones , Guido Garay , Kate J. Brooks , Jaime E. Pineda

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.…

星系天体物理 · 物理学 2009-12-18 L. K. Dewangan , B. G. Anandarao

We present new Spitzer Space Telescope observations of the region NGC 2467, and use these observations to determine how the environment of an HII region affects the process of star formation. Our observations comprise IRAC (3.6, 4.5, 5.8,…

天体物理学 · 物理学 2009-07-22 Keely D. Snider , J. Jeff Hester , Steven J. Desch , Kevin R. Healy , Jon Bally

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

Spitzer IRAC observations and stellar photometric catalogs are presented for the Massive Young Star-Forming Complex Study in the Infrared and X-ray (MYStIX). MYStIX is a multiwavelength census of young stellar members of twenty nearby (d <…

太阳与恒星天体物理 · 物理学 2016-11-25 Michael A. Kuhn , Matthew S. Povich , Kevin L. Luhman , Konstantin V. Getman , Heather S. Busk , Eric D. Feigelson

The HII complex N44 in the Large Magellanic Cloud (LMC) provides an excellent site to perform a detailed study of star formation in a mild starburst, as it hosts three regions of star formation at different evolutionary stages and it is not…

星系天体物理 · 物理学 2014-11-18 C. -H. Rosie Chen , You-Hua Chu , Robert A. Gruendl , Karl D. Gordon , Fabian Heitsch

We present 7mm Very Large Array continuum images of the starburst galaxy M82. On arcsecond scales, two-thirds of the 7mm continuum consists of free-free emission from HII regions. In the subarcsecond resolution map, we identify 14 compact…

宇宙学与河外天体物理 · 物理学 2009-11-13 Chao-Wei Tsai , Jean L. Turner , Sara C. Beck , David S. Meier , Paul T. P. Ho

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…

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

Our goal is to identify bipolar HII regions and to understand their morphology, their evolution, and the role they play in the formation of new generations of stars. We use the Spitzer and Herschel Hi-GAL surveys to identify bipolar HII…

Wide field near-infrared observations and Spitzer Space Telescope IRAC observations of the DR21/W75 star formation regions are presented. The photometric data are used to analyse the extinction, stellar content and clustering in the entire…

天体物理学 · 物理学 2008-11-26 M. S. N. Kumar , C. J. Davis , J. M. C. Grave , B. Ferreira , D. Froebrich

We investigate the star formation activity in the molecular complex associated with the Galactic HII region Sh2-90, using radio-continuum maps obtained at 1280 MHz and 610 MHz, Herschel Hi-GAL observations at 70 -- 500 microns, and deep…

太阳与恒星天体物理 · 物理学 2015-06-19 M. R. Samal , A. Zavagno , L. Deharveng , S. Molinari , D. K. Ojha , D. Paradis , J. Tigé , A. K. Pandey , D. Russeil

We present a study of the structure of the high mass star-forming region RCW~38 and the spatial distribution of its young stellar population. Spitzer IRAC photometry 3-8um are combined with 2MASS near-IR data to identify young stellar…

太阳与恒星天体物理 · 物理学 2015-05-30 Elaine Winston , Scott J. Wolk , Tyler Bourke , S. Thomas Megeath , Robert Gutermuth , Brad Spitzbart

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

Hydrocarbons are ubiquitous in the interstellar medium, but their formation is still not well understood, depending on the physical environment they are found in. M8 is host to one of the brightest HII regions and PDRs in our galaxy. Using…

星系天体物理 · 物理学 2019-06-12 M. Tiwari , K. M. Menten , F. Wyrowski , J. P. Pérez-Beaupuits , M. -Y. Lee , W. -J. Kim
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