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相关论文: An Infrared Census of Star Formation in the Horseh…

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We have carried out near-IR/optical observations to examine star formation toward a bright-rimmed cometary globule (BRC37) facing the exciting star(s) of an HII region (IC1396) containing an IRAS source, which is considered to be an…

The Trifid nebula is a young HII region undergoing a burst of star formation. In this article, we report on far-infrared and millimeter continuum and line observations of several massive and bright protostellar sources in the vicinity of…

天体物理学 · 物理学 2009-10-31 B. Lefloch , J. Cernicharo

The aim of this paper is to identify the young protostellar counterparts associated to dust millimeter cores of the Vela Molecular Ridge Cloud D through new IR observations (H_2 narrow-band at 2.12 micron and N broad band at 10.4 micron)…

天体物理学 · 物理学 2009-11-13 M. De Luca , T. Giannini , D. Lorenzetti , F. Massi , D. Elia , B. Nisini

IRAS 17256-3631 is a southern Galactic massive star forming region located at a distance of 2 kpc. In this paper, we present a multiwavelength investigation of the embedded cluster, the HII region, as well as the parent cloud. Radio images…

星系天体物理 · 物理学 2016-01-27 V. S. Veena , S. Vig , A. Tej , W. P. Varricatt , S. K. Ghosh , T. Chandrasekhar , N. M. Ashok

Mid-infrared images from the Spitzer Space Telescope Galactic Legacy Infrared MidPlane Survey Extraordinaire program reveal that the infrared source IRAS 03063+5735 is a bowshock nebula produced by an early B star, 2MASS 03101044+5747035.…

星系天体物理 · 物理学 2015-06-03 Henry A. Kobulnicky , Michael J. Lundquist , Anirban Bhattacharjee , C. R. Kerton

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 report the measured H$\alpha$ fluxes and images of 66 nearby objects observed with the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences. Three of these objects: IC2233, UGC4704, and NGC3432 are…

星系天体物理 · 物理学 2019-05-01 S. S. Kaisin , I. D Karachentsev

We describe the results of a search for early-type stars associated with the Taurus-Auriga molecular cloud complex, a diffuse nearby star-forming region noted as lacking young stars of intermediate and high mass. We investigate several sets…

星系天体物理 · 物理学 2015-06-16 Kunal P. Mooley , Lynne A. Hillenbrand , Luisa M. Rebull , Deborah L. Padgett , Gillian R. Knapp

In this paper we present the results of a mid infrared study of G49.5-0.4, or W51A, part of the massive starbirth complex W51. Combining public data from the $Spitzer$ IRAC camera, and Gemini mid infrared camera T-ReCS at 7.73, 9.69, 12.33…

星系天体物理 · 物理学 2016-07-06 Cassio L. Barbosa , Robert D. Blum , Augusto Damineli , Peter S. Conti , Danilo M. Gusmão

The presence of three more Herbig Ae/Be (HAeBe) stars in the Cepheus Flare within a 1.5$^{\circ}$ radius centered on HD 200775 suggests that star formation is prevalent in a wider region of the LDN 1147/1158, LDN 1172/1174, and LDN 1177…

太阳与恒星天体物理 · 物理学 2021-09-29 Piyali Saha , Maheswar G. , Blesson Mathew , U. S. Kamath

The Trifid Nebula, a young star-forming HII region, was observed for 16 hours by the Chandra X-ray Observatory. We detected 304 X-ray sources, thirty percent of which are hard sources and seventy percent of of which have near-infrared…

天体物理学 · 物理学 2009-11-10 J. Rho , S. Ramirez , M. F. Corcoran , K. Hamaguchi , B. Lefloch

We present near infrared (J, H, and K) photometry and moderate resolution (lambda/Deltalambda = 3000) K-band spectroscopy of the embedded stellar cluster in the giant H II region W31. Four of the brightest five cluster members are early…

天体物理学 · 物理学 2009-11-06 R. D. Blum , A. Damineli , P. S. Conti

We present a survey for extended 2.2 $\mu$m emission in 20 new visual reflection nebulae, illuminated by stars with temperatures of 3,600 --- 33,000 K. We detect extended 2.2 $\mu$m emission in 13 new nebulae, illuminated by stars with…

天体物理学 · 物理学 2009-10-28 K. Sellgren , M. W. Werner , L. J. Allamandola

We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS) on board the infrared astronomical satellite AKARI during its performance verification phase.…

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

Far-UV photons strongly affect the physical and chemical state of molecular gas in the vicinity of young massive stars. We have obtained maps of the HCO and H13CO+ ground state lines towards the Horsehead edge at 5'' angular resolution with…

天体物理学 · 物理学 2009-11-13 Maryvonne Gerin , Javier R. Goicoechea , Jérôme Pety , Pierre Hily-Blant

We report on the detection of optically thick free-free radio sources in the galaxies M33, NGC 253, and NGC 6946 using data in the literature. We interpret these sources as being young, embedded star birth regions, which are likely to be…

天体物理学 · 物理学 2009-11-06 Kelsey E. Johnson , Chip Kobulnicky , Phil Massey , Peter Conti

We have started a campaign to identify massive star clusters inside bright molecular bubbles towards the Galactic Center. The CN15/16/17 molecular complex is the first example of our study. The region is characterized by the presence of two…

We have obtained time series observations of the Orion Nebula Cluster at 70 microns and 160 microns from the Herschel/PACS Photometer. This represents the first wide-field far-infrared photometric monitoring of a young star forming region.…

星系天体物理 · 物理学 2015-06-05 N. Billot , M. Morales-Calderon , J. R. Stauffer , S. T. Megeath , B. Whitney

The Rosette Nebula is an HII region ionized mainly by the stellar cluster NGC 2244. Elephant trunks, globules, and globulettes are seen at the interface where the HII region and the surrounding molecular shell meet. We have observed a field…

星系天体物理 · 物理学 2017-09-20 M. M. Mäkelä , L. K. Haikala , G. F. Gahm