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相关论文: Submillimeter Array Observations of NGC 2264-C: Mo…

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We present new aperture synthesis CO maps of the Antennae (NGC 4038/39) obtained with the Caltech Millimeter Array. These sensitive images show molecular emission associated with the two nuclei and a partial ring of star formation to the…

天体物理学 · 物理学 2009-10-31 C. D. Wilson , N. Scoville , S. C. Madden , V. Charmandaris

We present the Submillimeter Array (SMA) 157-pointing mosaic in 0.86 mm dust continuum emission with 5$".1\times4"$.2 angular resolution, and the NRAO Green Bank 100m Telescope (GBT) observations of the CS/C$^{34}$S/$^{13}$CS 1-0 and SiO…

Using the Atacama Large Millimeter/submillimeter Array (ALMA), we investigated a peculiar millimeter source MMS 3 located in the Orion Molecular Cloud 3 (OMC-3) region in the 1.3 mm continuum, CO ($J$=2-1), SiO ($J$=5-4), C$^{18}$O…

星系天体物理 · 物理学 2021-04-08 Kaho Morii , Satoko Takahashi , Masahiro N. Machida

We present observations of IRAS 16293-2422 using the Submillimeter Array (SMA) at 300 GHz, and the Very Large Array (VLA) at frequencies from 1.5 to 43 GHz. This source was already known to be a binary system with components A and B…

天体物理学 · 物理学 2009-11-13 Claire J. Chandler , Crystal L. Brogan , Yancy L. Shirley , Laurent Loinard

We present new observations of C-band continuum emission and masers to assess high-mass ($>$8 $M_\odot$) star formation at early evolutionary phases in the inner 200 pc of the Central Molecular Zone (CMZ) of the Galaxy. The continuum…

We present high-resolution images of the submillimeter SiO line emissions of a massive young stellar object Orion Source I using the Atacama Large Millimeter/ Submillimeter Array (ALMA) at band 8. We detected the 464 GHz SiO v=4 J=11-10…

We identify nine young stellar objects (YSOs) in the NGC 2264 star-forming region with optical {\em CoRoT} light curves exhibiting short-duration, shallow, periodic flux dips. All of these stars have infrared (IR) excesses that are…

We present ATCA observations of the H2O maser line and radio continuum at 18.0GHz and 22.8GHz, toward a sample of 192 massive star forming regions containing several clumps already imaged at 1.2mm. The main aim of this study is to…

星系天体物理 · 物理学 2015-06-12 A. Sanchez-Monge , M. T. Beltran , R. Cesaroni , F. Fontani , J. Brand , S. Molinari , L. Testi , M. Burton

We have carried out the observations of the OMC-2 FIR 3/4 region with the NMA and ASTE in the H$^{13}$CO$^{+}$ (1--0), $^{12}$CO (3--2, 1--0), SiO ($v$=0, $J$=2--1), CS (2--1), and CH$_3$OH ($J_K$=7$_K$--6$_K$) lines and in the 3.3 mm…

天体物理学 · 物理学 2009-11-13 Yoshito Shimajiri , Satoko Takahashi , Shigehisa Takakuwa , Masao Saito , Ryohei Kawabe

Protostellar outflows are considered a signpost of star formation. These outflows can cause shocks in the molecular gas and are typically traced by the line wings of certain molecules. HNCO (4--3) has been regarded as a shock tracer because…

星系天体物理 · 物理学 2023-06-07 Jinjin Xie , Juan Li , Junzhi Wang , Shu Liu , Kai Yang , Donghui Quan , Siqi Zheng , Yuqiang Li , Jingwen Wu , Yan Duan , Di Li

We have discovered two compact sources of shocked H2 2.12-micron emission coincident with Mol 160 (IRAS 23385+6053), a massive star-forming core thought to be a precursor to an ultracompact HII region. The 2.12-micron sources lie within 2"…

星系天体物理 · 物理学 2015-06-03 Grace Wolf-Chase , Michael Smutko

We present the first aperture synthesis unbiased spectral line survey toward an extragalactic object. The survey covered the 40 GHz frequency range between 202 and 242 GHz of the 1.3 mm atmospheric window. We find that 80% of the observed…

宇宙学与河外天体物理 · 物理学 2015-05-20 S. Martin , M. Krips , J. Martin-Pintado , S. Aalto , J. -H. Zhao , A. B. Peck , G. R. Petitpas , R. Monje , T. R. Greve , T. An

We have used the Submillimeter Array for the first interferometric CO imaging toward the starburst-Seyfert nucleus of the southern barred spiral galaxy NGC 1365, which is one of the four galaxies within 30 Mpc that have L_{8-1000micron} >=…

天体物理学 · 物理学 2008-11-26 Kazushi Sakamoto , Paul T. P. Ho , Rui-Qing Mao , Satoki Matsushita , Alison B. Peck

We used the ARO 12m antenna to observe emission from the J=1-0 lines of carbon monoxide, \hcop\ and HNC and the J=2-1 line of CS toward and around the continuum peak used for absorption studies and we compare them with CH, HNC, C\p\ and…

星系天体物理 · 物理学 2016-01-13 Harvey Liszt , Maryvonne Gerin

We present observations of the $^{12}$CO(6-5) line and 686GHz continuum emission in NGC253 with the Submillimeter Array at an angular resolution of ~4arcsec. The $^{12}$CO(6-5) emission is clearly detected along the disk and follows the…

(abridged) We present high angular resolution (~ 1") multi-tracer spectral line observations toward the hot core associated with G34.26+0.15 between 87--109 GHz. We have mapped emission from (i) complex nitrogen- and oxygen-rich molecules…

天体物理学 · 物理学 2011-02-11 B. Mookerjea , E. Casper , L. G. Mundy , L. W. Looney , ;

Using the Submillimeter Array (SMA) we have imaged for the first time the 321.226 GHz, 10_{29}-9_{36} ortho-H2O maser emission. This is also the first detection of this line in the Cepheus A high-mass star-forming region. The 22.235 GHz,…

天体物理学 · 物理学 2009-11-13 N. A. Patel , S. Curil , Q. Zhang , T. K. Sridharan , P. T. P. Ho , J. M. Torrelles

A survey of young bipolar outflows in regions of low-to-intermediate-mass star formation has been carried out in two class I methanol maser transitions: 7_0-6_1A+ at 44 GHz and 4_{-1}-3_0E at 36 GHz. We detected narrow features towards NGC…

星系天体物理 · 物理学 2015-05-18 S. V. Kalenskii , L. E. B. Johansson , P. Bergman , S. Kurtz , P. Hofner , C. M. Walmsley , V. I. Slysh

We present high angular resolution VLA and BIMA observations of NH$_3$, HCO$^+$, HCN and SO molecular emission and 1.4, 3.5 and 7 mm continuum emission toward the exciting source of the HH~80-81 system. This object is one of the few massive…

天体物理学 · 物理学 2012-08-27 Y. Gomez , L. F. Rodriguez , J. M. Girart , G. Garay , andJ. Marti

The optically invisible infrared-source NGC 2264 IRS 1 is thought to be a massive young stellar object (~10 Msun). Although strong infrared excess clearly shows that the central object is surrounded by large amounts of circumstellar…

太阳与恒星天体物理 · 物理学 2015-05-28 R. Grellmann , Th. Ratzka , S. Kraus , H. Linz , Th. Preibisch , G. Weigelt