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相关论文: High-Resolution Observations of the Molecular Clou…

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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

New large-scale CO surveys of the first and second Galactic quadrants and the nearby molecular cloud complexes in Orion and Taurus, obtained with the CfA 1.2 m telescope, have been combined with 31 other surveys obtained over the past two…

天体物理学 · 物理学 2009-10-31 T. M. Dame , Dap Hartmann , P. Thaddeus

Multiline observations of C18O and SiO isotopomers toward 33 molecular peaks in the Galactic center region, taken at the SEST, JCMT and HHT telescopes, are presented. The C18O presumably traces the total H_2 column density, while the SiO…

天体物理学 · 物理学 2007-05-23 S. Huettemeister , G. Dahmen , R. Mauersberger , C. Henkel , T. L. Wilson , J. Martin-Pintado

We report the results of a high spatial (parsec) resolution HCO+ (J = 1-0) and HCN (J = 1-0) emission survey toward the giant molecular clouds of the star formation regions N105, N113, N159, and N44 in the Large Magellanic Cloud. The HCO+…

星系天体物理 · 物理学 2015-06-04 Jonathan P. Seale , Leslie W. Looney , Tony Wong , Juergen Ott , Uli Klein , Jorge L. Pineda

We present submillimeter observations of the Local Group, metal-poor, irregular dwarf galaxy IC 10, directly relevant to the interaction between interstellar medium and star formation activity in primeval galaxies. Using the JCMT, we have…

Furukawa et al. 2009 reported the existence of a large mass of molecular gas associated with the super star cluster Westerlund 2 and the surrounding HII region RCW49, based on a strong morphological correspondence between NANTEN2…

At the interface of HII regions and molecular gas peculiar structures appear, some of them with pillar-like shapes. Understanding their origin is important for characterizing triggered star formation and the impact of massive stars on the…

星系天体物理 · 物理学 2017-08-02 S. Paron , M. Celis Peña , M. E. Ortega , C. Fariña , M. Rubio , R. P. Ashley

Molecular hydrogen clouds are a key component of the interstellar medium because they are the birthplaces for stars. They are embedded in atomic gas that pervades the interstellar space. However, the details of how molecular clouds assemble…

The Orion molecular cloud complex harbours the nearest GMCs and site of high-mass star formation. Its YSO populations are thoroughly characterized. The region is therefore a prime target for the study of star formation. Here, we verify the…

In order to understand the formation of massive OB stars, we report a multi-wavelength observational study of a giant molecular cloud hosting the S147/S153 complex (size ~90 pc X 50 pc). The selected complex is located in the Perseus arm,…

星系天体物理 · 物理学 2020-03-04 J. S. Dhanya , L. K. Dewangan , D. K. Ojha , S. Mandal

Detections of massive stars in the direction of the H II region CS 78 in NGC 6334 and of G332.809-0.132 are here presented. The region covered by the G332.809-0.132 complex coincides with the RCW 103 stellar association. In its core (40' in…

星系天体物理 · 物理学 2020-07-23 Maria Messineo , Karl M. Menten , Donald F. Figer , J. Simon Clark

We report the results of a 100 square degree survey of the Taurus Molecular Cloud region in the J = 1-0 transition of 12CO and 13CO. The image of the cloud in each velocity channel includes ~ 3 million Nyquist sampled pixels on a 20" grid.…

天体物理学 · 物理学 2009-12-08 Paul F. Goldsmith , Mark Heyer , Gopal Narayanan , Ronald Snell , Di Li , Chris Brunt

We present a multiwavelength investigation of the HII region G25.8700+0.1350, located in the inner part of the Galaxy. In radio continuum emission, the region is seen as a bright arc-shaped structure. An analysis of the HI line suggests…

星系天体物理 · 物理学 2017-12-20 S. Cichowolski , N. U. Duronea , L. A. Suad , E. M. Reynoso , R. Dorda

We present the highest resolution (1") $^{12}$CO(1-0) observations of molecular gas in the dwarf starburst galaxy NGC 625, to date, obtained with ALMA. Molecular gas is distributed in discrete clouds within an area of $0.4$ kpc$^2$ and does…

星系天体物理 · 物理学 2020-05-27 Nia Imara , Ilse De Looze , Christopher M. Faesi , Diane Cormier

We present high resolution large scale observations of the molecular and atomic gas in the Local Group Galaxy M33. The observations were carried out using the HERA at the 30m IRAM telescope in the CO(2-1) line achieving a resolution of…

New observations of CO (J=1->0) line emission from M33, using the 25 element BEARS focal plane array at the Nobeyama Radio Observatory 45-m telescope, in conjunction with existing maps from the BIMA interferometer and the FCRAO 14-m…

天体物理学 · 物理学 2011-02-11 E. Rosolowsky , E. Keto , S. Matsushita , S. Willner

We report the results of a new large scale survey of the Orion-Monoceros complex of molecular clouds made in the J = 1->0 line of CO with the Harvard-Smithsonian 1.2m millimetre-wave telescope. The survey consists of 52,288 uniformly spaced…

天体物理学 · 物理学 2009-11-10 B. A. Wilson , T. M. Dame , M. R. W. Masheder , P. Thaddeus

We have carried out sub-mm 12CO(J=3-2) observations of 6 giant molecular clouds (GMCs) in the Large Magellanic Cloud (LMC) with the ASTE 10m sub-mm telescope at a spatial resolution of 5 pc and very high sensitivity. We have identified 32…

We present the results of a new study of the molecular gas associated with the "extended green object" (EGO) G35.03+0.35. This object, very likely a massive young stellar object, is embedded in a molecular cloud at the border of an HII…

星系天体物理 · 物理学 2015-05-30 S. Paron , M. E. Ortega , A. Petriella , M. Rubio , E. Giacani , G. Dubner

We have carried out a morphological search for molecular clouds possibly associated with 48 Galactic infrared bubbles with angular radii of $>1'$ in the southern Galactic plane of $295^\circ \le l\le 350^\circ$ and $|b|\le 1^\circ$…

星系天体物理 · 物理学 2025-07-03 Mikito Kohno , Yoshiaki Sofue , Yasuo Fukui , Kengo Tachihara