中文
相关论文

相关论文: Cloud-cloud collision in the DR 21 cloud as a trig…

200 篇论文

We have started a campaign to identify massive star clusters inside bright molecular bubbles towards the Galactic Center. The CN15/16/17 molecular complex is the first example of our study. The region is characterized by the presence of two…

We aim to give a full description of the distribution and location of dense molecular clouds in the giant molecular cloud complex W43. It has previously been identified as one of the most massive star-forming regions in our Galaxy. To trace…

In stellar-dense environments, stars can collide with each other. For collisions close to a supermassive black hole (SMBH), the collisional kinetic energy can be so large that the colliding stars can be completely destroyed, potentially…

高能天体物理现象 · 物理学 2024-01-30 Taeho Ryu , Pau Amaro Seoane , Andrew M. Taylor , Sebastian T. Ohlmann

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…

天体物理学 · 物理学 2009-11-07 L. Olmi , L. Testi

We present observations of 1.5 square degree maps of the 12CO, 13CO, and C18O (J=1-0) emission toward the complex region of the supernova remnant (SNR) W41 and SNR G22.7-0.2. A massive (~5E5Msun), large (~84x15 pc), and dense (~10E3 cm^-3)…

星系天体物理 · 物理学 2015-10-07 Yang Su , Shaobo Zhang , Xiangjun Shao , Ji Yang

We present 12CO(1->0) observations of 45 giant molecular clouds in M33 made with the BIMA array. The observations have a linear resolution of 20 pc, sufficient to measure the sizes of most GMCs in the sample. We place upper limits on the…

天体物理学 · 物理学 2009-11-10 Erik Rosolowsky , Greg Engargiola , Richard Plambeck , Leo Blitz

We have carried out 12CO (J=1-0 and 2-1), 13CO (J=1-0), and C18O (J=1-0) observations in the direction of the supernova remnant (SNR) G22.7-0.2. A filamentary molecular gas structure, which is likely part of a larger molecular complex with…

太阳与恒星天体物理 · 物理学 2015-06-23 Yang Su , Ji Yang , Xin Zhou , Ping Zhou , Yang Chen

We present the results of an extensive observational study of the active star-forming complex W51 that was observed in the J=2-1 transition of the 12CO and 13CO molecules over a 1.25 deg x 1.00 deg region with the University of Arizona…

星系天体物理 · 物理学 2015-05-19 Miju Kang , John H. Bieging , Craig A. Kulesa , Youngung Lee , Minho Choi , William L. Peters

Infrared-Dark Clouds (IRDCs) are cold, dense regions of high (optical and infrared) extinction, believed to be the birthplace of high-mass stars and stellar clusters. The physical mechanisms leading to the formation of these IRDCs are not…

星系天体物理 · 物理学 2017-11-28 G. Cosentino , I. Jimenez-Serra , J. D. Henshaw , P. Caselli , S. Viti , A. T. Barnes , F. Fontani , J. C. Tan , A. Pon

We present maps and a catalogue containing the J=1-0 12CO parameters of 29 individual molecular clouds in the second-brightest LMC star formation complex, N11. In the southwestern part of N11, molecular clouds occur in a ring or shell…

We present a multiwavelength investigation of a region of a nearby giant molecular cloud that is distinguished by a minimal level of star formation activity. With our new 12CO(J=2-1) and 13CO(J=2-1) observations of a remote region within…

星系天体物理 · 物理学 2017-05-24 Nia Imara , Charles Lada , John Lewis , John H. Bieging , Shuo Kong , Marco Lombardi , Joao Alves

We present a new large-scale survey of J=3-2 12CO emission covering 4.8 square degrees around the Rosette Nebula. Approximately 2000 compact clumps are identified, with a spatially-invariant power law mass distribution index of -1.8. Most…

We present new observations of the CepA-East region of massive star formation and describe an extended and dynamically distinct feature not previously recognised. This feature is present in emission from H2CS, OCS, CH3OH, and HDO at -5.5…

天体物理学 · 物理学 2009-11-11 C. Codella , S. Viti , D. A. Williams , R. Bachiller

Using the IRAM 30m telescope we have surveyed a $1\times0.8^{\circ}$ part of the Orion molecular cloud in the $^{12}$CO and $^{13}$CO (2-1) lines with a maximal spatial resolution of $\sim$11" and spectral resolution of $\sim$ 0.4…

星系天体物理 · 物理学 2015-06-22 Olivier Berne , Nuria Marcelino , Jose Cernicharo

Young massive stars in the central parsec of our Galaxy are best explained by star formation within at least one, and possibly two, massive self-gravitating gaseous discs. With help of numerical simulations, we here consider whether the…

天体物理学 · 物理学 2014-11-18 Sergei Nayakshin , Alexander Hobbs

To probe the star-formation (SF) processes, we present results of an analysis of the molecular cloud G35.20$-$0.74 (hereafter MCG35.2) using multi-frequency observations. The MCG35.2 is depicted in a velocity range of 30-40 km s$^{-1}$. An…

太阳与恒星天体物理 · 物理学 2017-03-08 L. K. Dewangan

N113 is an HII region located in the central part of the Large Magellanic Cloud (LMC) with an associated molecular cloud very rich in molecular species. Most of the previously observed molecular lines cover the frequency range 85-270 GHz.…

星系天体物理 · 物理学 2016-08-10 S. Paron , M. E. Ortega , M. Cunningham , P. A. Jones , M. Rubio , C. Fariña , S. Komugi

We have surveyed a ~0.9-square-degree area of the W3 giant molecular cloud and star-forming region in the 850-micron continuum, using the SCUBA bolometer array on the James Clerk Maxwell Telescope. A complete sample of 316 dense clumps was…

天体物理学 · 物理学 2009-06-23 T J T Moore , D E Bretherton , T Fujiyoshi , N A Ridge , J Allsopp , M G Hoare , S L Lumsden , J S Richer

We report the first high-resolution (sub-arcminute) large-scale mapping $^{12}$CO and $^{13}$CO observations of the molecular clouds associated with the giant outer Galaxy HII region CTB~102 (KR 1). These observations were made using a…

星系天体物理 · 物理学 2019-05-08 Brandon Marshall , Sung-ju Kang , C. R. Kerton , Youngsik Kim , Minho Choi , Miju Kang

After the morphological classification of the 18,190 $^{12}$CO molecular clouds, we further investigate the properties of their internal molecular gas structures traced by the $^{13}$CO($J=$ 1$-$0) line emissions. Using three different…

星系天体物理 · 物理学 2022-08-17 Lixia Yuan , Ji Yang , Fujun Du , Yang Su , Xunchuan Liu , Shaobo Zhang , Yan Sun , Xin Zhou , Qing-Zeng Yan , Yuehui Ma
‹ 上一页 1 8 9 10 下一页 ›