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Related papers: Outflow detection in a 70 $\mu$m dark high-mass co…

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We present an outflow survey toward 20 Low Luminosity Objects (LLOs), namely protostars with an internal luminosity lower than 0.2 Lsun. Although a number of studies have reported the properties of individual LLOs, the reasons for their low…

Astrophysics of Galaxies · Physics 2017-04-05 Tien-Hao Hsieh , Shih-Ping Lai , Arnaud Belloche

We present high resolution images of the bipolar outflow from W51e2, which are produced from the Submillimeter Array archival data observed for CO(3-2) and HCN(4-3) lines with angular resolutions of 0.8" x 0.6" and 0.3" x 0.2",…

Solar and Stellar Astrophysics · Physics 2010-07-20 Hui Shi , Jun-Hui Zhao , Jinlin Han

We present a survey of 28 molecular outflows driven by low-mass protostars, all of which are sufficiently isolated spatially and/or kinematically to fully separate into individual outflows. Using a combination of new and archival data from…

Massive molecular clumps fragment into cores where star formation takes place, hence star-forming studies should be done at different spatial scales. Using near-IR data obtained with Gemini, data of CH3OCHO and CH3CN from the ALMA database,…

Astrophysics of Galaxies · Physics 2020-09-16 M. B. Areal , S. Paron , C. Fariña , M. E. Ortega , M. Celis Peña , M. Rubio

We present molecular line imaging observations of three massive molecular outflow sources, G333.6-0.2, G333.1-0.4, and G332.8-0.5, all of which also show evidence for infall, within the G333 giant molecular cloud (GMC). All three are within…

Astrophysics of Galaxies · Physics 2015-09-14 N. Lo , B. Wiles , M. P. Redman , M. R. Cunningham , I. Bains , P. A. Jones , M. G. Burton , L. Bronfman

We present 12CO (J=2-1) sensitive molecular line and 1.3 mm continuum observations made with the Submillimeter Array (SMA) of the bipolar outflow associated with the young star located in the Bok globule known as CB 26. The SMA observations…

Solar and Stellar Astrophysics · Physics 2023-03-01 J. A. López-Vázquez , Luis A. Zapata , Chin-Fei Lee

The 24 M Jupiter mass brown dwarf 2MASS1207-3932 has for some time been known to show clear signs of classical T Tauri-like accretion. Through analysis of its oxygen forbidden emission we have discovered that it is driving a bipolar…

Astrophysics · Physics 2009-11-13 E. T. Whelan , T. P. Ray , S. Randich , F. Baciotti , R. Jayawardhana , L. Testi , A. Natta , S. Mohanty

We report the results of mapping observations of the bipolar nebula with SiO maser emission, IRAS 19312+1950, in the CO (J=1-0 and J=2-1), 13CO (J=1-0 and J=2-1), C18O (J=1-0), CS (J=2-1), SO (J_K=3_2-2_1) and HCO+ (J=3-2) lines with the…

Astrophysics · Physics 2009-11-13 Jun-ichi Nakashima , Shuji Deguchi

Haro 2 is a blue compact dwarf galaxy and the closest (at 21Mpc) known $Ly\alpha$ emitter. UV and optical observations have found Haro 2 to be immersed in shells of partly ionized gas expanding at $\sim200$km/s. Observations of CO(2-1)…

Astrophysics of Galaxies · Physics 2025-11-18 Sara Beck , Pei-Ying Hsieh , Jean Turner

We report molecular line observations of the massive protostellar source G339.88-1.26 with the Atacama Large Millimeter/Submillimeter Array. The observations reveal a highly collimated SiO jet extending from the 1.3 mm continuum source,…

Central molecular outflows in spiral galaxies are assumed to modulate their host galaxy's star formation rate by removing gas from the inner region of the galaxy. Outflows consisting of different gas phases appear to be a common feature in…

Up to now only a few intermediate-mass molecular outflows have been studied with enough high-angular resolution. The aim of this work is to study in detail the intermediate-mass YSO IRAS 22272+6358A, which is embedded in L1206, and its…

Astrophysics · Physics 2009-11-11 Maria T. Beltran , Josep M. Girart , Robert Estalella

New JCMT HARP CO 3-2 observations of the W5 star forming complex are presented, totaling an area of 12000 arcmin^2 with sensitivity better than 0.1 K per 0.4 km/s channel. We discovered 55 CO outflow candidates, of which 40 are associated…

Astrophysics of Galaxies · Physics 2015-05-28 Adam Ginsburg , John Bally , Jonathan Williams

We present maps of seven sources selected from Klaassen & Wilson (2007a) in SiO (J=8-7) and HCO$^+$ and H$^{13}$CO$^+$ (J=4-3) which were obtained using HARP-B on the James Clerk Maxwell Telescope. We find that four out of our seven sources…

Astrophysics · Physics 2009-11-13 P. D Klaassen , C. D Wilson

In order to study how outflows from protostars influence the physical and chemical conditions of the parent molecular cloud, we have observed Barnard 1 (B1) main core, which harbors four Class 0 and three Class I sources, in the CO (J=1-0),…

Astrophysics of Galaxies · Physics 2010-03-10 Masaaki Hiramatsu , Naomi Hirano , Shigehisa Takakuwa

Young circumstellar disks that are still embedded in dense molecular envelopes may differ from their older counterparts, but are historically difficult to study because emission from a disk can be confused with envelope or outflow emission.…

Solar and Stellar Astrophysics · Physics 2015-05-28 Gregory J. Herczeg , Joanna M. Brown , Ewine F. van Dishoeck , Klaus M. Pontoppidan

We examine an Infrared Dark Cloud (IRDC) at high spatial resolution as a means to study rotation, outflow, and infall at the onset of massive star formation. Submillimeter Array observations combined with IRAM 30 meter data in 12CO(2--1)…

Solar and Stellar Astrophysics · Physics 2015-05-13 C. Fallscheer , H. Beuther , Q. Zhang , E. Keto , T. K. Sridharan

Using the OVRO, Nobeyama, and IRAM mm-arrays, we searched for ``disk''-outflow systems in three high-mass (proto)star forming regions: G16.59-0.05, G23.01-0.41, and G28.87+0.07. These were selected from a sample of NH3 cores associated with…

Astrophysics · Physics 2009-11-13 R. S. Furuya , R. Cesaroni , S. Takahashi , C. Codella , M. Momose , M. T. Beltran

The IRDC SDC335.579-0.292 (SDC335) is a massive star-forming cloud found to be globally collapsing towards one of the most massive star forming cores in the Galaxy. SDC335 hosts three high-mass protostellar objects at early stages of their…

Astrophysics of Galaxies · Physics 2021-02-03 A. Avison , G. A. Fuller , N. Peretto , A. Duarte-Cabral , A. L. Rosen , A. Traficante , J. E. Pineda , R. Güsten , N. Cunningham
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