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We present results of wide-field $^{12}$CO ($J = 2 - 1$) and $^{13}$CO ($J = 2 - 1$) observations toward the Aquila Rift and Serpens molecular cloud complexes (25$^\circ < l < 33^\circ$ and $1^\circ < b < 6^\circ$) at an angular resolution…

Astrophysics of Galaxies · Physics 2017-03-22 Fumitaka Nakamura , Kazuhito Dobashi , Tomomi Shimoikura , Tomohiro Tanaka , Toshikazu Onishi

The formaldehyde $\rm H_2CO(1_{10} - 1_{11})$ absorption line and H$110\alpha$ radio recombination line (RRL) have been observed toward the Aquila Molecular Cloud using the Nanshan 25 m telescope operated by the Xinjiang Astronomical…

We report on new distances and proper motions to seven stars across the Serpens/Aquila complex. The observations were obtained as part of the Gould's Belt Distances Survey (GOBELINS) project between September 2013 and April 2016 with the…

We present results of the mapping observations covering a large area of 1 square degree around W40 and Serpens South carried out in the 12CO (J=1-0), 13CO (J=1-0), C18O (J=1-0), CCS (J_{N}=8_{7}-7_{6}), and N_2H+ (J=1-0) emission lines with…

Solar and Stellar Astrophysics · Physics 2018-11-28 Tomomi Shimoikura , Kazuhito Dobashi , Fumitaka Nakamura , Yoshito Shimajiri , Koji Sugitani

We mapped 12CO and 13CO J = 2-1 emission over 1.04 square deg of the Serpens molecular cloud with 38 arcsec spatial and 0.3 km/s spectral resolution using the Arizona Radio Observatory Heinrich Hertz Submillimeter telescope. Our maps…

Astrophysics of Galaxies · Physics 2015-06-17 K. J. Burleigh , J. H. Bieging , A. Chromey , C. Kulesa , W. L. Peters

We report the discovery of a nearby, embedded cluster of young stellar objects, associated filamentary infrared dark cloud, and 4.5 micron shock emission knots from outflows detected in Spitzer/IRAC mid-infrared imaging of the…

We present the results of molecular line observations toward the W40 and Serpens South regions of the Aquila molecular cloud complex, conducted as part of the TRAO-FUNS project to investigate the role of filamentary structures in the…

We present the results of a ~250 square degrees CO mapping (+26d<l<+50d and -5d<b<+5d) toward the Aquila Rift region at a spatial resolution of ~50" and a grid spacing of 30". The high dynamic range CO maps with a spectral resolution of…

Solar and Stellar Astrophysics · Physics 2020-04-29 Yang Su , Ji Yang , Qing-zeng Yan , Yan Gong , Zhiwei Chen , Shaobo Zhang , Yan Sun , Miaomiao Zhang , Xuepeng Chen , Xin Zhou , Min Wang , Hongchi Wang , Ye Xu , Zhibo Jiang

We have mapped the large-scale structure of the Serpens cloud core using moderately optically thick (13CO(1--0) and CS(2--1)) and optically thin tracers (C18O(1--0), C34S(2--1), and N2H+(1--0)), using the 16-element focal plane array…

Astrophysics · Physics 2009-11-07 L. Olmi , L. Testi

We surveyed the Aquila Rift complex including the Serpens South and W40 region in the NH$_3$(1,1) and (2,2) transitions making use of the Nanshan 26-m telescope. The kinetic temperatures of the dense gas in the Aquila Rift complex range…

Abridged -- We present an analysis of the Aquila Rift complex which addresses the questions of the star formation rate (SFR), star formation efficiency (SFE) and typical lifetime of the Class 0 protostellar phase in two nearby…

Astrophysics of Galaxies · Physics 2015-05-30 Anaelle Maury , Philippe Andre , Alexander Men'shchikov , Vera Konyves , Sylvain Bontemps

(Abridged) Aims. In the present part of our survey we search for ammonia emitters in the Aquila rift complex which trace the densest regions of molecular clouds. Methods. From a CO survey carried out with the Delingha 14-m telescope we…

Astrophysics of Galaxies · Physics 2015-06-15 S. A. Levshakov , C. Henkel , D. Reimers , M. Wang , R. Mao , H. Wang , Y. Xu

Using wide-field $^{13}$CO ($J=1-0$) data taken with the Nobeyama 45-m telescope, we investigate cloud structures of the infrared dark cloud complex in M17 with SCIMES. In total, we identified 118 clouds that contain 11 large clouds with…

We simulate star formation and star cluster assembly inside a molecular cloud with parameters we derive directly from observations of the Aquila Rift. We model the evolution of stars and gas together while resolving close encounters between…

Astrophysics of Galaxies · Physics 2026-05-12 Jeremy Karam , Michiko S. Fujii , Rachel Friesen , Alison Sills

We present the N2H+(J=1-0) map of the Serpens South molecular cloud obtained as part of the CARMA Large Area Star Formation Survey (CLASSy). The observations cover 250 square arcminutes and fully sample structures from 3000 AU to 3 pc with…

We present high spatial resolution $^{12}$CO ($J=1-0$) images taken by the Nobeyama 45m telescope toward a $48' \times 48'$ area including the L1641-N cluster. The effective spatial resolution of the maps is $21"$, corresponding to 0.04 pc…

The high Galactic longitude end of the Aquila Rift comprises the large Aquila molecular cloud complex, however, few young stars are known to be located in the area, and only one is directly associated with the Rift. In contrast, the Serpens…

Astrophysics · Physics 2008-11-19 L. Prato , E. L. Rice , T. M. Dame

W51A is one of the most active star-forming region in our Galaxy, which contains giant molecular clouds with a total mass of 10^6 Msun. The molecular clouds have multiple velocity components over ~20 km/s, and interactions between these…

We report on a possible cloud-cloud collision in the DR 21 region, which we found through molecular observations with the Nobeyama 45-m telescope. We mapped an area of 8'x12' around the region with twenty molecular lines including the…

Astrophysics of Galaxies · Physics 2019-05-29 Kazuhito Dobashi , Tomomi Shimoikura , Shou Katakura , Fumitaka Nakamura , Yoshito Shimajiri

Young stellar clusters are believed to inherit the spatial distribution like hierarchical structures of their natal molecular cloud during their formation. However, the change of the structures between the cloud and the young clusters is…

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