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Related papers: The C$^{18}$O core mass function toward Orion A: S…

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A fundamental difference between "core-fed" and "clump-fed" star formation theories lies in the existence or absence of high-mass cores at the prestellar stage. However, only a handful of such cores have been observed. Here, different than…

Astrophysics of Galaxies · Physics 2024-08-12 Wenyu Jiao , Ke Wang , Fengwei Xu

(abridged) Within the Orion A molecular cloud, the integral-shaped filament (ISF) is a prominent, degree-long structure of dense gas and dust, with clear signs of recent and on-going high-mass star formation. We used the ArTeMiS bolometer…

We have conducted millimeter interferometric observations of the Orion Molecular Cloud-2 (OMC-2) FIR 6 region at an angular resolution of $\sim$ 4$\arcsec$ - 7$\arcsec$ with the Nobeyama Millimeter Array (NMA). In the 3.3 mm continuum…

Solar and Stellar Astrophysics · Physics 2015-05-13 Yoshito Shimajiri , Satoko Takahashi , Shigehisa Takakuwa , Masao Saito , Ryohei Kawabe

We conducted an exploration of 12CO molecular outflows in the Orion A giant molecular cloud to investigate outflow feedback using 12CO (J = 1-0) and 13CO (J = 1-0) data obtained by the Nobeyama 45-m telescope. In the region excluding the…

We present observations of the $^3P_1$-$^3P_0$ fine-structure line of atomic carbon using the ASTE 10 m sub-mm telescope towards RCW38, the youngest super star cluster in the Milky Way. The detected [CI] emission is compared with the CO $J$…

We present the results of a mid-infrared (7 micron) imaging survey of a sample of 24 starless dense cores carried out at an angular resolution of 6 arcsec with the ISOCAM camera aboard the Infrared Space Observatory (ISO). The targeted…

Using the archive data of the H13CO+ (J=1-0) line emission taken with the Nobeyama 45 m radio telescope with a spatial resolution of about 0.01pc, we have identified 68 dense cores in the central dense region of the rho Ophiuchi main cloud.…

Solar and Stellar Astrophysics · Physics 2015-05-13 Hajime Maruta , Fumitaka Nakamura , Ryoichi Nishi , Norio Ikeda , Yoshimi Kitamura

Multiline observations of C18O and SiO isotopomers toward 33 molecular peaks in the Galactic center region, taken at the SEST, JCMT and HHT telescopes, are presented. The C18O presumably traces the total H_2 column density, while the SiO…

Astrophysics · Physics 2007-05-23 S. Huettemeister , G. Dahmen , R. Mauersberger , C. Henkel , T. L. Wilson , J. Martin-Pintado

Centaurus A is the most nearby powerful AGN, widely studied at all wavelengths. Molecular gas has been found in the halo at a distance of ~20 kpc from the galaxy centre, associated with HI shells. The molecular gas lies inside some IR and…

Astrophysics of Galaxies · Physics 2016-01-27 Quentin Salomé , Philippe Salomé , Françoise Combes , Stephen Hamer , Ian Heywood

Many astrochemical models of observed CO isotopologue line emission, earlier considered a good proxy measure of H$_2$ and hence disk gas mass, favor large deviations in the carbon and oxygen gas phase abundances and argue that severe gas…

Astrophysics of Galaxies · Physics 2022-02-02 Maxime Ruaud , Uma Gorti , David Hollenbach

We report 850~$\mu$m dust polarization observations of a low-mass ($\sim$12 $M_{\odot}$) starless core in the $\rho$ Ophiuchus cloud, Ophiuchus C, made with the POL-2 instrument on the James Clerk Maxwell Telescope (JCMT) as part of the…

Astrophysics of Galaxies · Physics 2019-05-29 Junhao Liu , Keping Qiu , David Berry , James Di Francesco , Pierre Bastien , Patrick M. Koch , Ray S. Furuya , Kee-Tae Kim , Simon Coudé , Chang Won Lee , Archana Soam , Chakali Eswaraiah , Di Li , Jihye Hwang , A-Ran Lyo , Kate Pattle , Tetsuo Hasegawa , Woojin Kwon , Shih-Ping Lai , Derek Ward-Thompson , Tao-Chung Ching , Zhiwei Chen , Qilao Gu , Dalei Li , Hua-bai Li , Hong-Li Liu , Lei Qian , Hongchi Wang , Jinghua Yuan , Chuan-Peng Zhang , Guoyin Zhang , Ya-Peng Zhang , Jianjun Zhou , Lei Zhu , Philippe André , Doris Arzoumanian , Yusuke Aso , Do-Young Byun , Michael Chun-Yuan Chen , Huei-Ru Vivien Chen , Wen Ping Chen , Jungyeon Cho , Minho Choi , Antonio Chrysostomou , Eun Jung Chung , Yasuo Doi , Emily Drabek-Maunder , C. Darren Dowell , Stewart P. S. Eyres , Sam Falle , Lapo Fanciullo , Jason Fiege , Erica Franzmann , Per Friberg , Rachel K. Friesen , Gary Fuller , Tim Gledhill , Sarah F. Graves , Jane S. Greaves , Matt J. Griffin , Ilseung Han , Jennifer Hatchell , Saeko S. Hayashi , Thiem Hoang , Wayne Holland , Martin Houde , Tsuyoshi Inoue , Shu-ichiro Inutsuka , Kazunari Iwasaki , Il-Gyo Jeong , Doug Johnstone , Yoshihiro Kanamori , Ji-hyun Kang , Miju Kang , Sung-ju Kang , Akimasa Kataoka , Koji S. Kawabata , Francisca Kemper , Gwanjeong Kim , Jongsoo Kim , Kyoung Hee Kim , Mi-Ryang Kim , Shinyoung Kim , Jason M. Kirk , Masato I. N. Kobayashi , Takayoshi Kusune , Jungmi Kwon , Kevin M. Lacaille , Chin-Fei Lee , Jeong-Eun Lee , Hyeseung Lee , Sang-Sung Lee , Sheng-Yuan Liu , Tie Liu , Sven van Loo , Steve Mairs , Masafumi Matsumura , Brenda C. Matthews , Gerald H. Moriarty-Schieven , Tetsuya Nagata , Fumitaka Nakamura , Hiroyuki Nakanishi , Nagayoshi Ohashi , Takashi Onaka , Josh Parker , Harriet Parsons , Enzo Pascale , Nicolas Peretto , Andy Pon , Tae-Soo Pyo , Ramprasad Rao , Mark G. Rawlings , Brendan Retter , John Richer , Andrew Rigby , Jean-François Robitaille , Sarah Sadavoy , Hiro Saito , Giorgio Savini , Anna M. M. Scaife , Masumichi Seta , Hiroko Shinnaga , Motohide Tamura , Ya-Wen Tang , Kohji Tomisaka , Yusuke Tsukamoto , Jia-Wei Wang , Anthony P. Whitworth , Hsi-Wei Yen , Hyunju Yoo , Tetsuya Zenko

We study star formation in the Center Ridge 1 (CR1) clump in the Vela C giant molecular cloud, selected as a high column density region that shows the lowest level of dust continuum polarization angle dispersion, likely indicating that the…

We present an analysis of polarised dust emission at 850 micron for a parsec long filament in the northern part of the Orion B molecular cloud. The region was observed by the JCMT SCUBA-2/POL-2 polarimeter. The filament has a line mass (~80…

We present a high-resolution $1.5"$ observational study towards two massive dust-and-gas cores, ORI8nw\_2 and ORI2\_6 in Orion Molecular Cloud using the Combined Array for Research in Millimeter-wave Astronomy (CARMA). In both regions the…

Solar and Stellar Astrophysics · Physics 2015-06-16 Zhiyuan Ren , Di Li , Nicholas Chapman

We present the Herschel Gould Belt survey maps of the L1641 molecular clouds in Orion A. We extracted both the filaments and dense cores in the region. We identified which of dense sources are proto- or pre-stellar, and studied their…

Single-pointing observations of NH$_3$ (1,1) and (2,2) were conducted towards 672 Planck Early Release Cold Cores (ECCs) using the Nanshan 26-m radio telescope. Out of these sources, a detection rate of 37% (249 cores) was achieved, with…

New large-scale CO surveys of the first and second Galactic quadrants and the nearby molecular cloud complexes in Orion and Taurus, obtained with the CfA 1.2 m telescope, have been combined with 31 other surveys obtained over the past two…

Astrophysics · Physics 2009-10-31 T. M. Dame , Dap Hartmann , P. Thaddeus

We have performed a 1 square degree 1.2mm dust continuum survey in the rho Oph molecular cloud. We detect a number of previously unknown sources, ranging from extended cores over compact, starless cores to envelopes surrounding young…

Astrophysics · Physics 2009-11-11 Thomas Stanke , Michael D. Smith , Roland Gredel , Tigran Khanzadyan

We obtained the first view in H$^{13}$CO$^+$ $J=1-0$ and a high resolution map in thermal SiO lines of G0.11$-$0.11, which is a molecular cloud situated between the Galactic Center radio arc and Sgr A. From a comparison with previous line…

Astrophysics · Physics 2009-11-13 T. Handa , M. Sakano , S. Naito , M. Hiramatsu , M. Tsuboi
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