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相关论文: Mid-J CO emission from the Orion BN/KL explosive o…

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Aims: We searched for the molecular outflows from fifteen molecular clouds associated with ultra-compact and compact HII (UCHII/HII) regions and discussed possible gas heating mechanism. Methods: Mapping observations of CO $J=3-2$ and…

天体物理学 · 物理学 2009-11-13 Sheng-Li Qin , Jun-Jie Wang , Gang Zhao , Martin Miller , Jun-Hui Zhao

We have surveyed molecular line emission from Orion BN/KL from 42.3 to 43.6 GHz with the Green Bank Telescope. Sixty-seven lines were identified and ascribed to 13 different molecular species. The spectrum at 7 mm is dominated by SiO, SO2,…

天体物理学 · 物理学 2011-02-11 C. Goddi , L. J. Greenhill , E. M. L. Humphreys , L. D. Matthews , Jonathan C. Tan , C. J. Chandler

Orion BN/KL is an example of a poorly understood phenomena in star forming regions involving the close encounter of young stellar objects. The explosive structure, the great variety of molecules observed, the energy involved in the event…

We report the arcsecond resolution SMA observations of the $^{12}$CO (2-1) transition in the massive cluster forming region G10.6-0.4. In these observations, the high velocity $^{12}$CO emission is resolved into individual outflow systems,…

太阳与恒星天体物理 · 物理学 2015-05-20 Hauyu Baobab Liu , Paul T. P. Ho , Qizhou Zhang

Deuterated molecules have been detected and studied toward Orion BN/KL in the past decades, mostly with single-dish telescopes. However, high angular resolution data are critical not only for interpreting the spatial distribution of the…

星系天体物理 · 物理学 2015-06-05 T. -C. Peng , D. Despois , N. Brouillet , B. Parise , A. Baudry

We present the first fully sampled map of 12CO (1-0) emission from M82 covering the entire galaxy. Our map contains a 12 x 15 kpc^2 area. We find that extraplanar CO emission, previously reported at short distances above the galactic plane,…

天体物理学 · 物理学 2009-11-07 Christopher L. Taylor , Fabian Walter , Min S. Yun

We aim to characterize the outflow properties of a sample of early Class 0 phase low-mass protostars in Orion first identified by the Herschel Space Observatory. We also look for signatures of infall in key molecular lines. CO $J$=3-2 and…

星系天体物理 · 物理学 2020-10-14 Z. Nagy , A. Menechella , S. T. Megeath , J. J. Tobin , J. J. Booker , W. J. Fischer , P. Manoj , T. Stanke , A. Stutz , F. Wyrowski

We present results of 1.3mm interferometric and single-dish observations of the center of the L1641-N cluster in Orion. Single-dish wide-field continuum and CO(2-1) observations reveal the presence of several molecular outflows driven by…

天体物理学 · 物理学 2008-11-26 Thomas Stanke , Jonathan P. Williams

We present a multi-wavelength study of two HH objects (137 and 138) that may be associated. We use Gemini H$_2$ (2.12 $\mu$m) and K (2.2 $\mu$m) images, as well as APEX molecular line observations and Spitzer image archives. Several H$_2$…

太阳与恒星天体物理 · 物理学 2020-07-02 Leticia V. Ferrero , Cristina E. Cappa , Hugo P. Saldaño , Mercedes Gómez , Mónica Rubio , Guillermo Güthardt

The field just West of the galactic supernova remnant W28 (l=6.4\degr, b=-0.2\degr) harbors 3 of 5 newly-discovered 1720 OH maser spots and two recently-discovered candidate supernova candidates (one of which is a $\gamma$-ray source), as…

星系天体物理 · 物理学 2015-05-13 H. S. Liszt

We present a study of molecular outflows using high-resolution mapping of the CO (1-0) line emission toward eight relatively nearby 6.7 GHz methanol masers, which are associated with massive star forming regions. Outflows were detected in…

天体物理学 · 物理学 2008-11-26 Y. Xu , Z. -Q. Shen , J. Yang , X. W. Zheng , A. Miyazaki , K. Sunada , H. J. Ma , J. J. Li , J. X. Sun , C. C. Pei

We present the first maps of high-excitation CO J=6-5 and 7-6 and isotopologue lines over 2'-5' regions at 10" resolution toward low-mass protostars to probe the origin of the warm gas in their surroundings. The data were obtained using the…

星系天体物理 · 物理学 2009-09-22 Ewine F. van Dishoeck , Tim A. van Kempen , Rolf Guesten

We have mapped the Orion-A Giant Molecular Cloud in the CO (J=4-3) line with the Tsukuba 30-cm submillimeter telescope.The map covered a 7.125 deg^2 area with a 9' resolution, including main components of the cloud such as Orion Nebula,…

We present the results of a photographic and CCD imaging survey for Herbig-Haro (HH) objects in the L1630 and L1641 giant molecular clouds in Orion. The new HH flows were initially identified from a deep H-alpha film from the recently…

天体物理学 · 物理学 2009-10-31 S. L. Mader , W. J. Zealey , Q. A. Parker , M. R. W. Masheder

AIMS Our aim is to characterize the size, mass, density and temperature profiles of the protostellar envelope of HH~46 IRS 1 and its surrounding cloud material as well as the effect the outflow has on its environment.METHODS The CHAMP+ and…

We present molecular line observations of the protostellar outflow associated with HH270mms1 in the Orion B molecular cloud with ALMA. The 12CO(J = 3 - 2) emissions show that the outflow velocity structure consists of four distinct…

星系天体物理 · 物理学 2024-03-19 Mitsuki Omura , Kazuki Tokuda , Masahiro N. Machida

In this {\it Letter}, we present sensitive millimeter SiO (J=5-4; $\nu$=0) line observations of the outflow arising from the enigmatic object Orion Source I made with the Atacama Large Millimeter/Submillimeter Array (ALMA). The observations…

The distribution of 12C16O J=9-8 (1.037 THz) emission has been mapped in OMC-1 at 35 points with 84" resolution. This is the first map of this source in this transition and only the second velocity-resolved ground-based observation of a…

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 map of 12CO J=6-5 emission of the nuclear region of the nearby starburst galaxy M82 at resolution 7" taken with the James Clerk Maxwell Telescope (JCMT). This is the highest resolution map yet available at this transition. A…

天体物理学 · 物理学 2009-11-13 E. R. Seaquist , S. W. Lee , G. H. Moriarty-Schieven