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Related papers: The L723 low mass star forming protostellar system…

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We present high-angular resolution sub-millimeter continuum images and molecular line spectra obtained with the SMA toward two massive cores that lie within Infrared Dark Clouds; one actively star-forming (G034.43+00.24 MM1) and the other…

Astrophysics · Physics 2009-11-13 J. M. Rathborne , J. M. Jackson , Q. Zhang , R. Simon

We aim at studying with high angular resolution a dense core associated with a low-luminosity IRAS source, IRAS 00213+6530, in order to investigate whether low mass star formation is really taking place in isolation. We performed…

Astrophysics of Galaxies · Physics 2015-05-13 G. Busquet , Aina Palau , R. Estalella , J. M. Girart , G. Anglada , I. Sepúlveda

The dark cloud Lynds 723 (L723) is a low-mass star-forming region where one of the few known cases of a quadrupolar CO outflow has been reported. Two recent works have found that the radio continuum source VLA 2, towards the centre of the…

Astrophysics of Galaxies · Physics 2015-05-19 R. Lopez , J. A. Acosta-Pulido , G. Gomez , R. Estalella , C. Carrasco-Gonzalez

We present molecular line and submillimeter dust continuum observations of the Lynds 870 cloud in the vicinity of IRAS 20231+3440. Two submillimeter cores, SMM1 and SMM2, are identified mapping the 870 micron dust continuum and ammonia…

Astrophysics · Physics 2009-11-07 R. Q. Mao , J. Yang , C. Henkel , Z. B. Jiang

We report interferometric observations of the high-mass star-forming object IRAS 23033+5951. Our observations reveal two massive molecular cloud cores, designated IRAS 23033+5951-MMS1 and IRAS 23033+5951-MMS2. MMS1 has already formed a…

Astrophysics · Physics 2009-11-13 Michael A. Reid , Brenda C. Matthews

We present multi-wavelength, high spatial resolution imaging of the IRS 7 region in the R Corona Australis molecular cloud. Our observations include 1.1 mm continuum and HCO^+ J = $3 \to 2$ images from the SMA, ^{12}CO J = $3 \to 2$ outflow…

Astrophysics · Physics 2016-08-14 Christopher E. Groppi , Todd R. Hunter , Raymond Blundell , Göran Sandell

We present Submillimeter Array (SMA) 1.35 mm subarcsecond angular resolution observations toward the LkH{\alpha} 234 intermediate-mass star-forming region. The dust emission arises from a filamentary structure of $\sim$5 arcsec ($\sim$4500…

The filamentary infrared dark cloud L1287 is actively forming a dense cluster of low-mass YSOs at its inner $\sim$0.1 pc region. To help understand the origin of this low-mass YSO cluster, the present work aims at resolving the gas…

Solar and Stellar Astrophysics · Physics 2019-01-23 Carmen Juárez , Hauyu-Baobab Liu , Josep M. Girart , Aina Palau , Gemma Busquet , Roberto Galván-Madrid , Naomi Hirano , Yuxin Lin

We report new results from CARMA observations of both continuum and HCO+(1-0) emission at 3.4 mm from W3-SE, a molecular core of intermediate mass, together with the continuum observations at 1.1 and 0.85/0.45 mm with the SMA and JCMT. A…

Solar and Stellar Astrophysics · Physics 2014-11-20 Lei Zhu , M. C. H. Wright , Jun-Hui Zhao , Yuefang Wu

We present high angular resolution Very Large Array multi-epoch continuum observations at 3.6 cm and 7 mm towards the core of the L723 multipolar outflow revealing a multiple system of four radio sources suspected to be YSOs in a region of…

We present a 350 micron APEX/SABOCA map of IRAS 05399-0121/SMM 1, which is a dense double-core system in Orion B9. We combined these data with our previous LABOCA 870-micron data. The spatial resolution of the new SABOCA image, ~3400 AU, is…

Astrophysics of Galaxies · Physics 2015-06-15 Oskari Miettinen , Stella S. R. Offner

We present observations of IRAS 16293-2422 using the Submillimeter Array (SMA) at 300 GHz, and the Very Large Array (VLA) at frequencies from 1.5 to 43 GHz. This source was already known to be a binary system with components A and B…

Astrophysics · Physics 2009-11-13 Claire J. Chandler , Crystal L. Brogan , Yancy L. Shirley , Laurent Loinard

We report the discovery of multiple condensations in the prestellar core candidate SMM1A in the R~CrA cloud, which may represent the earliest phase of core fragmentation observed thus far. The separation between the condensations is between…

Solar and Stellar Astrophysics · Physics 2015-05-19 Xuepeng Chen , Hector G. Arce

We report new results on outflow and infall in the star forming cores W3-SE SMA-1 and SMA-2 based on analysis of $\sim2.5\arcsec$ resolution observations of the molecular lines HCN(3-2), HCO$^+$(3-2), N$_2$H$^+$(3-2) and…

Solar and Stellar Astrophysics · Physics 2015-05-30 Lei Zhu , Jun-Hui Zhao , M. C. H. Wright

We present 1.3-mm subarcsecond SMA observations of the prototypical Class 0 protostar VLA1623. We report the detection of 1.3-mm continuum emission both from the central protostellar component VLA1623 and two additional sources, Knot-A and…

Astrophysics of Galaxies · Physics 2015-06-04 A. J. Maury , N. Ohashi , Ph. Andre

The L1551 molecular cloud contains two small clusters of Class 0 and I protostars, as well as a halo of more evolved Class II and III YSOs, indicating a current and at least one past burst of star formation. We present here new, sensitive…

Astrophysics · Physics 2009-11-13 Gerald H. Moriarty-Schieven , Doug Johnstone , John Bally , Tim Jenness

Maps of the 450 micron and 850 micron dust continuum emission from three star-forming condensations within the Lynds 1630 molecular cloud, made with the SCUBA bolometer array, reveal the presence of four new submillimetre sources, each of a…

Astrophysics · Physics 2009-11-07 Robin R. Phillips , Andy G. Gibb , Leslie T. Little

Investigations into the substructure of massive star forming regions are essential for understanding the observed relationships between core mass distributions and mass distributions in stellar clusters, differentiating between proposed…

We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of the submillimeter dust continuum and H2D+ 1_{10}-1_{11} emission toward two evolved, potentially protostellar cores within the Ophiuchus molecular cloud, Oph A…

Solar and Stellar Astrophysics · Physics 2015-06-23 R. K. Friesen , J. Di Francesco , T. L. Bourke , P. Caselli , J. K. Jørgensen , J. E. Pineda , M. Wong

Most stars form in multiple systems, with profound implications in numerous astronomical phenomena intrinsically linked to multiplicity. However, our knowledge about the process on how multiple stellar systems form is incomplete and biased…

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