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相关论文: Radio Continuum Observations towards Optical and M…

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Using archive data from the Millimeter Astronomy Legacy Team Survey at 90 GHz (MALT90), carried out using the Mopra 22-m telescope, we made the first multi-transition molecular line study of infrared dark cloud (IRDC) MSXDC G331.71+00.59.…

星系天体物理 · 物理学 2016-05-11 Nai-Ping Yu , Jun-Jie Wang

Context: High-mass stars have a high degree of multiplicity and most likely form via disk accretion processes. The detailed physics of the binary and disk formation are still poorly constrained. Methods: Using the VLA in its most extended…

太阳与恒星天体物理 · 物理学 2017-09-13 H. Beuther , H. Linz , Th. Henning , S. Feng , R. Teague

The red MSX source G034.5964-01.0292 (MSXG34), catalogued as a massive YSO, was observed in molecular lines with the aim of discover and study molecular outflows. We mapped a region of 3'x3' centered at MSXG34 using the Atacama…

星系天体物理 · 物理学 2014-09-05 S. Paron , M. E. Ortega , A. Petriella , M. Rubio

Spectral lines from formaldehyde (H2CO) molecules at cm wavelengths are typically detected in absorption and trace a broad range of environments, from diffuse gas to giant molecular clouds. In contrast, thermal emission of formaldehyde…

星系天体物理 · 物理学 2021-04-02 Onic I. Shuvo , E. D. Araya , W. S. Tan , P. Hofner , S. Kurtz , Y. M. Pihlstrom , I. M. Hoffman

We report the detection of outflowing molecular gas at the center of the nearby radio galaxy NGC6328 (z=0.014), which has a gigahertz-peaked spectrum radio core and a compact (2 pc) young double radio lobe tracing jet. Utilizing Atacama…

We report ALMA observations of molecular gas and continuum emission in the 90 and 350 GHz bands toward a nearby Seyfert galaxy NGC 613. Radio continuum emissions were detected at 95 and 350 GHz from both the circum-nuclear disk (CND)…

星系天体物理 · 物理学 2018-02-05 Yusuke Miyamoto , Naomasa Nakai , Masumichi Seta , Dragan Salak , Makoto Nagai , Hiroyuki Kaneko

Cool gas (T$\sim$10$^{4}$~K) traced by hydrogen Ly$\alpha$ emission is now routinely detected around $z\sim3$ quasars, but little is known about their molecular gas reservoirs. Here, we present an APEX spectroscopic survey of the CO(6-5),…

We present BIMA 3 mm observations of the radio continuum source and the molecular gas disk in the radio loud Fanaroff & Riley Type I (FR I)galaxy NGC3801.We have detected a continuum source in the nucleus and determined that it has a flat…

天体物理学 · 物理学 2009-11-11 Mousumi Das , Stuart N. Vogel , Gijs A. Verdoes Kleijn , Christopher P. O'Dea , Stefi A. Baum

Spectral line survey observations are conducted toward the high-mass protostar candidate NGC 2264 CMM3 in the 4 mm, 3 mm, and 0.8 mm bands with the Nobeyama 45 m telescope and the Atacama Submillimeter Telescope Experiment (ASTE) 10 m…

We present observations of outflows in the star-forming region NGC 1333 using the Combined Array for Research in Millimeter-Wave Astronomy (CARMA). We combined the 12CO and 13CO (1-0) CARMA mosaics with data from the 14-m Five College Radio…

太阳与恒星天体物理 · 物理学 2015-06-16 Adele L. Plunkett , Hector G. Arce , Stuartt A. Corder , Diego Mardones , Anneila I. Sargent , Scott L. Schnee

Stretching a length reaching 10 pc projected in the plane of sky, the radio jet associated with Herbig-Haro objects 80 and 81 (HH 80-81) is known as the largest and best collimated protostellar jet in our Galaxy. The nature of the molecular…

星系天体物理 · 物理学 2019-05-01 Keping Qiu , Friedrich Wyrowski , Karl Menten , Qizhou Zhang , Rolf Guesten

We have observed 6 late-L and T dwarfs with the Karl G. Jansky Very Large Array (VLA) to investigate the presence of highly circularly polarized radio emission, associated with large-scale auroral currents. Previous surveys encompassing ~60…

太阳与恒星天体物理 · 物理学 2016-02-17 Melodie M. Kao , Gregg Hallinan , J. Sebastian Pineda , Ivanna Escala , Adam Burgasser , Stephen Bourke , David Stevenson

To reveal the origins of diffuse H-alpha emissions observed around the Herbig star MWC 1080, we have performed a high-resolution near-infrared (NIR) spectroscopic observation using the Immersion GRating INfrared Spectrograph (IGRINS). In…

星系天体物理 · 物理学 2021-06-30 Il-Joong Kim , Heeyoung Oh , Woong-Seob Jeong , Kwang-Il Seon , Tae-Soo Pyo , Jae-Joon Lee

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…

天体物理学 · 物理学 2009-11-13 Gerald H. Moriarty-Schieven , Doug Johnstone , John Bally , Tim Jenness

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…

星系天体物理 · 物理学 2015-05-28 Adam Ginsburg , John Bally , Jonathan Williams

We present deep images of the kpc-scale radio continuum emission in 14 edge-on galaxies (ten Seyfert and four starburst galaxies). Observations were taken with the VLA at 4.9~GHz (6~cm). The Seyfert galaxies were selected from a…

天体物理学 · 物理学 2009-10-28 E. J. M. Colbert , S. A. Baum , J. F. Gallimore , C. P. O'Dea , J. A. Christensen

With a substantial nuclear molecular gas reservoir and broad, high-velocity CO molecular line wings previously interpreted as an outflow, NGC 1266 is a rare SB$0$ galaxy. Previous analyses of interferometry, spectrally resolved low-$J$ CO…

星系天体物理 · 物理学 2015-06-23 Jason Glenn , Naseem Rangwala , Philip R. Maloney , Julia R. Kamenetzky

The active young protostar DG Tau has an extended jet that has been well studied at radio, optical, and X-ray wavelengths. We report sensitive new VLA full-polarization observations of the core and jet between 5 GHz and 8 GHz. Our high…

太阳与恒星天体物理 · 物理学 2013-03-08 C. Lynch , R. L. Mutel , M. Güdel , T. Ray , S. L. Skinner , P. C. Schneider , K. G. Gayley

We have discovered 12 new molecular hydrogen emission-line objects (MHOs) in the vicinity of the candidate massive young stellar object Mol 121, in addition to five that were previously known. H2 2.12-micron/H2 2.25-micron flux ratios…

星系天体物理 · 物理学 2015-06-12 G. Wolf-Chase , K. Arvidsson , M. Smutko , R. Sherman

Context. With the latest infrared surveys, the number of massive protostellar candidates has increased significantly. New studies have posed additional questions on important issues about the formation, evolution, and other phenomena…

星系天体物理 · 物理学 2015-05-19 P. Benaglia , M. Ribo , J. A. Combi , G. E. Romero , S. Chaty , B. Koribalski , I. F. Mirabel , L. F. Rodriguez , G. Bosch