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相关论文: A multi-wavelength study of the star-forming core …

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We present Submillimeter Array (SMA) \lambda = 0.88mm observations of an infrared dark cloud (IRDC) G28.34+0.06. Located in the quiescent southern part of the G28.34 cloud, the region of interest is a massive ($>10^3$\,\msun) molecular…

星系天体物理 · 物理学 2015-05-28 Ke Wang , Qizhou Zhang , Yuefang Wu , Huawei Zhang

This paper presents a large spectral line and continuum survey of 8 deeply embedded, low-mass protostellar cores using the Submillimeter Array. Each source was observed in high excitation lines of some of the most common molecular species,…

We present Submillimter Array 1.3 mm waveband continuum and molecular line observations of the HH 80-81 high-mass star-forming region. The dust continuum emission reveals two dominant peaks MM1 and MM2, and line emission from high-density…

星系天体物理 · 物理学 2015-05-13 Keping Qiu , Qizhou Zhang

We present near- and mid-infrared (IR) broadband imaging observations of the edge-on protoplanetary disk around HH 30 with the James Webb Space Telescope/Near Infrared Camera (NIRCam) and the Mid-Infrared Instrument (MIRI). We combine these…

We present an analysis of radio (Karl G. Jansky Very Large Array (VLA)), optical (HST), and X-ray (Chandra and XMM-Newton) observations and archival data of the Herbig-Haro objects HH 80 and HH 81 in the context of jet-cloud interactions.…

We present Herschel, ALMA Compact Array (ACA), and Caltech Submillimeter Observatory (CSO) observations of the prestellar core in L1689N, which has been suggested to be interacting with a molecular outflow driven by the nearby solar type…

星系天体物理 · 物理学 2016-08-24 D. C. Lis , H. A. Wootten , M. Gerin , L. Pagani , E. Roueff , F. F. S van der Tak , C. Vastel , C. M. Walmsley

We have imaged the enigmatic radio source-I (Orion-I) in the Orion-KL nebula with the VLA at 43 GHz with 34 mas angular resolution. The continuum emission is highly elongated and is consistent with that expected from a nearly edge-on disk.…

天体物理学 · 物理学 2009-06-23 M. J. Reid , K. M. Menten , L. J. Greenhill , C. J. Chandler

We investigate the structure of the core surrounding the recently identified deeply embedded young stellar object Barnard 1c which has an unusual polarization pattern as traced in submillimeter dust emission. Barnard 1c lies within the…

天体物理学 · 物理学 2008-11-26 B. C. Matthews , M. R. Hogerheijde , J. K. Jorgensen , E. A. Bergin

We aim at characterizing the large-scale distribution of H2O in G327.3-0.6, a massive star-forming region made of individual objects in different evolutionary phases. We investigate variations of H2O abundance as function of evolution. We…

星系天体物理 · 物理学 2017-06-21 S. Leurini , F. Herpin , F. van der Tak , F. Wyrowski , G. J. Herczeg , E. F. van Dishoeck

We present a 4.5-4.85 micron R=5000 spectrum of the low mass class I young stellar object GSS 30 IRS1 (L=25L_sun) in the rho Ophiuchus core, observed with the infrared spectrometer (ISAAC) on the Very Large Telescope (VLT-UT1). Strong line…

天体物理学 · 物理学 2009-11-07 K. M. Pontoppidan , F. L. Schoeier , E. F. van Dishoeck , E. Dartois

We present a multiwavelength study of the ultra compact HII region associated with IRAS 20178+4046. This enables us to probe the different components associated with this massive star forming region. The radio emission from the ionized gas…

天体物理学 · 物理学 2009-11-13 A. Tej , S. K. Ghosh , V. K. Kulkarni , D. K. Ojha , R. P. Verma , S. Vig

We present an observational study of the protostellar core B335 harboring a low-mass Class 0 source. The observations of the H13CO+(J=1-0) line emission were carried out using the Nobeyama 45 m telescope and Nobeyama Millimeter Array. Our…

太阳与恒星天体物理 · 物理学 2015-06-15 Yasutaka Kurono , Masao Saito , Takeshi Kamazaki , Koh-Ichiro Morita , Ryohei Kawabe

We present a multi-wavlength infrared study of the nearby, edge-on, spiral galaxy NGC 891. We have examined 20 independent, spatially resolved IR images of this galaxy, 14 of which are newly reduced and/or previously unpublished images.…

宇宙学与河外天体物理 · 物理学 2009-11-13 C. Whaley , J. Irwin , S. Madden , F. Galliano , G. Bendo

HD 100546 is a well-studied Herbig Be star-disk system that likely hosts a close-in companion with compelling observational evidence for an embedded protoplanet at 68 AU. We present ALMA observations of the HD 100546 disk which resolve the…

HD50138 is a Herbig B[e] star with a circumstellar disc detected at IR and mm wavelength. Its brightness makes it a good candidate for NIR interferometry observations. We aim to resolve, spatially and spectrally, the continuum and hydrogen…

太阳与恒星天体物理 · 物理学 2018-06-27 M. Koutoulaki , R. Garcia Lopez , A. Natta , A. Caratti o Garatti , D. Coffey , J. Sanchez-Bermudez , T. P. Ray

We present multi-wavelength radio observations in the direction of the spiral galaxy IC 2497 and the neighbouring emission nebula known as "Hanny's Voorwerp". Our WSRT continuum observations at 1.4 GHz and 4.9 GHz, reveal the presence of…

宇宙学与河外天体物理 · 物理学 2015-05-13 G. I. G. Jozsa , M. A. Garrett , T. A. Oosterloo , H. Rampadarath , Z. Paragi , H. van Arkel , C. Lintott , W. C. Keel , K. Schawinski , E. Edmondson

The S255IR-SMA1 core contains the protostar NIRS3 with a mass of $\sim$20 M$_\odot$. Several years ago, the first burst of luminosity for massive protostars, caused by an episodic accretion event, was recorded here. We have been studying…

星系天体物理 · 物理学 2025-05-01 I. I. Zinchenko , S. -Y. Liu , D. K. Ojha , Y. -N. Su , P. M. Zemlyanukha

We present the first 865 mu continuum image with sub-arcsecond resolution obtained with the Submillimeter Array. These data resolve the Orion-KL region into the hot core, the nearby radio source I, the sub-mm counterpart to the infrared…

Jets and outflows are associated with young stellar objects across the stellar mass spectrum, from brown dwarf protostars to massive, Ae/Be stars. Frequently, the jet morphology is spatially discontinuous because of the temporal variability…

太阳与恒星天体物理 · 物理学 2021-04-14 Rosario López , Angels Riera , Robert Estalella , Gabriel Gómez

We present 6 and 20 cm JVLA/VLA observations of the northern head of the HH 80/81/80N jet, one of the largest collimated jet systems known so far, aimed to look for knots further away than HH 80N, the northern head of the jet. Aligned with…

太阳与恒星天体物理 · 物理学 2015-06-11 Josep M. Masqué , Josep M. Girart , Robert Estalella , Luis F. Rodríguez , Maria T. Beltrán