English
Related papers

Related papers: A detailed analysis on the cloud structure and dyn…

200 papers

We carried out mapping observations toward three nearby molecular clouds, Orion A, Aquila Rift, and M17, using a new 100 GHz receiver, FOREST, on the Nobeyama 45-m telescope. In the present paper, we describe the details of the data…

Active star forming regions are excellent laboratories for studying the origins and evolution of young stellar object (YSO) clustering. The W40 - Serpens South region is such a region, and we compile a super near-and-mid-infrared catalog of…

Solar and Stellar Astrophysics · Physics 2022-10-05 Jia Sun , Robert A. Gutermuth , Hongchi Wang , Miaomiao Zhang , Shuinai Zhang , Yuehui Ma , Xinyu Du , Min Long

The fastest molecular component to the protostellar outflows -- extremely high-velocity (EHV) molecular jets -- are still puzzling since they are seen only rarely. The first aim is to analyze the interaction between the EHV jet and the slow…

The dense clusters within the Serpens Molecular Cloud are among the most active regions of nearby star formation. In this paper, we use Gaia DR2 parallaxes and proper motions to statistically measure 1167 kinematic members of Serpens, few…

We designed a follow-up program to find the spectroscopic properties of the Hercules-Aquila Cloud (HAC) and test scenarios for its formation. We measured the radial velocities (RVs) of 45 RR Lyrae in the southern portion of the HAC using…

Astrophysics of Galaxies · Physics 2018-03-19 Iulia T. Simion , Vasily Belokurov , Sergey E. Koposov , Allyson Sheffield , Kathryn V. Johnston

We present H13CO+ (J=1-0) and HNC (J=1-0) maps of regions in Serpens South, Serpens Main and NGC 1333 containing filaments. We also observe the Serpens regions using H13CN (J=1-0). These dense gas tracer molecular line observations carried…

Astrophysics of Galaxies · Physics 2018-02-21 Arnab Dhabal , Lee G. Mundy , Maxime J. Rizzo , Shaye Storm , Peter Teuben

The Serpens North Cluster is a nearby low mass star forming region which is part of the Gould Belt. It contains a range of young stars thought to correspond to two different bursts of star formation and provides the opportunity to study…

Astrophysics of Galaxies · Physics 2015-05-19 A. Duarte-Cabral , G. A. Fuller , N. Peretto , J. Hatchell , E. F. Ladd , J. Buckle , J. Richer , S. F. Graves

We report results of the CO(J=3-2) and HCO+(J=4-3) observations of the W40 HII region with the ASTE 10 m telescope (HPBW~22 arcsec) to search for molecular outflows and dense clumps.We found that the velocity field in the region is highly…

Solar and Stellar Astrophysics · Physics 2015-05-13 Tomomi Shimoikura , Kazuhito Dobashi , Fumitaka Nakamura , Chihomi Hara , Tomohiro Tanaka , Yoshito Shimajiri , Kouji Sugitani

We present the first results from a new carbon monoxide (CO) survey of the southern Galactic plane being conducted with the Mopra radio telescope in Australia. The 12CO, 13CO and C18O J=1-0 lines are being mapped over the l = 305-345 deg, b…

We report an observational study of the giant molecular cloud (GMC) associated with the Galactic infrared ring-like structure N35 and two nearby HII regions G024.392+00.072 (HII region A) and G024.510-00.060 (HII region B), using the new CO…

We present ALMA observations of the CO(1-0) and CO(3-2) line emission tracing filaments of cold molecular gas in the central galaxy of the cluster PKS0745-191. The total molecular gas mass of 4.6 +/- 0.3 x 10^9 solar masses, assuming a…

We present spectrophotometric ISO imaging with the LWS and the CAM-CVF of the Serpens molecular cloud core. The LWS map is centred on the far infrared and submillimetre source SMM1 and its size is 8' x 8'. The fine structure line emission…

Astrophysics · Physics 2009-11-07 B. Larsson , R. Liseau , A. B. Men'shchikov

We present observations of N2H+(1-0), HCO+(1-0), and HCN(1-0) toward the Serpens Main molecular cloud from the CARMA Large Area Star Formation Survey (CLASSy). We mapped 150 square arcminutes of Serpens Main with an angular resolution of 7…

Microquasar SS 433 located at the geometric center of radio nebula W50 is a suitable source for investigating the physical process of how galactic jets affect the surrounding interstellar medium (ISM). Previous studies have searched for…

Astrophysics of Galaxies · Physics 2023-02-08 Haruka Sakemi , Mami Machida , Hiroaki Yamamoto , Kengo Tachihara

We analyse ALMA observations of the 12CO(3-2) emission of the circumstellar envelope (CSE) of the Mira variable binary star W Aql. These provide, for the first time, spatially resolved Doppler velocity spectra of the CSE up to angular…

Solar and Stellar Astrophysics · Physics 2017-07-05 D. T. Hoai , P. T. Nhung , P. N. Diep , N. T. Phuong , P. Tuan-Anh , N. T. Thao , P. Darriulat

Guided by the duality of turbulence (random versus coherent we seek coherent structures in the turbulent velocity field of molecular clouds, anticipating their importance in cloud evolution. We analyse a large map (40' by 20') obtained with…

Astrophysics of Galaxies · Physics 2015-05-13 Pierre Hily-Blant , Edith Falgarone

The Serpens filament, a prominent elongated structure in a relatively nearby molecular cloud, is believed to be at an early evolutionary stage, so studying its physical and chemical properties can shed light on filament formation and early…

Astrophysics of Galaxies · Physics 2021-02-24 Y. Gong , A. Belloche , F. J. Du , K. M. Menten , C. Henkel , G. X. Li , F. Wyrowski , R. Q. Mao

We present deep ($\sim 17~\mu$Jy) radio continuum observations of the Serpens molecular cloud, the Serpens south cluster, and the W40 region obtained using the Very Large Array in its A configuration. We detect a total of 146 sources, 29 of…

We present a multi-wavelength investigation of a large-scale physical system containing the W33 complex. The extended system (~50 pc x 37 pc) is selected based on the distribution of molecular gas at [29.6, 60.2] km/s and of 88 ATLASGAL 870…

Astrophysics of Galaxies · Physics 2020-06-10 L. K. Dewangan , T. Baug , D. K. Ojha

Characterizing the spatial and velocity structure of molecular clouds is a first step towards a better understanding of interstellar turbulence and its link to star formation. We present observations and structure analysis results for a…

Astrophysics · Physics 2007-05-23 K. Sun , C. Kramer , V. Ossenkopf , F. Bensch , J. Stutzki , M. Miller