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相关论文: Ejection History of the IRAS 04166+2706 Molecular …

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Context: IRAS 04166+2706 in Taurus is one of the most nearby young stellar objects whose molecular outflow contains a highly collimated fast component. Methods: We have observed the IRAS 04166+2706 outflow with the IRAM Plateau de Bure…

天体物理学 · 物理学 2009-11-13 J. Santiago-Garcia , M. Tafalla , D. Johnstone , R. Bachiller

The molecular outflow from IRAS 04166+2706 was mapped with the Submillimeter Array (SMA) at 350 GHz continuum and CO J = 3$-$2 at an angular resolution of ~1 arcsec. The field of view covers the central arc-minute, which contains the inner…

太阳与恒星天体物理 · 物理学 2013-12-13 Liang-Yao Wang , Hsien Shang , Yu-Nung Su , Joaquín Santiago-García , Mario Tafalla , Qizhou Zhang , Naomi Hirano , Chin-Fei Lee

$Aims.$ We study the relation between the jet and the outflow in the IRAS 04166+2706 protostar. This Taurus protostar drives a molecular jet that contains multiple emission peaks symmetrically located from the central source. The protostar…

星系天体物理 · 物理学 2017-01-18 M. Tafalla , Y. -N. Su , H. Shang , D. Johnstone , Q. Zhang , J. Santiago-Garcia , C. -F. Lee , N. Hirano , L. -Y. Wang

$Context.$ The outflow from the Class 0 protostar IRAS 04166+2706 (hereafter IRAS 04166) contains a remarkably symmetric jet-like component of extremely high-velocity (EHV) gas. $Aims.$ We studied the IRAS 04166 outflow and investigated the…

星系天体物理 · 物理学 2026-01-12 M. Tafalla , D. Johnstone , J. Santiago-Garcia , Q. Zhang , H. Shang , C. -F. Lee

We present ALMA observations of the Class 0 protostar IRAS 04166+2706, obtained as part of the ALMA large program Early Planet Formation in Embedded Disks (eDisk). These observations were made in the 1.3 mm dust continuum and molecular…

HH 211 is a highly collimated jet with a chain of well-defined knots, powered by a nearby young Class 0 protostar. We have used 4 epochs (2004, 2008, 2010, and 2013) of Submillimeter Array (SMA) archive data to study the properties of the…

太阳与恒星天体物理 · 物理学 2016-01-13 Kai-Syun Jhan , Chin-Fei Lee

We present here an extensive analysis of the protostellar jet driven by IRAS 20126+4104, deriving the kinematical, dynamical, and physical conditions of the H2 gas along the flow. The jet has been investigated by means of near-IR H2 and…

天体物理学 · 物理学 2015-05-13 A. Caratti o Garatti , D. Froebrich , J. Eisloeffel , T. Giannini , B. Nisini

We investigate one of the best examples of disk+jet systems around an early B-type (proto)star, IRAS20126+4104. This object is an ideal target for resolution of its disk and the determination of its physical and kinematical structure.…

太阳与恒星天体物理 · 物理学 2024-12-10 R. Cesaroni , D. Galli , M. Padovani , V. M. Rivilla , A. Sanchez-Monge

We report detection of a Young Stellar Object with an evidence for an outflow in the form of knots in the molecular hydrogen emission line (2.121 micron) towards the massive star forming region IRAS 06061+2151. Near-infrared images reveal…

天体物理学 · 物理学 2009-11-10 B. G. Anandarao , A. Chakraborty , D. K. Ojha , L. Testi

We present observations of jets within 2000 au of three deeply embedded protostars using 2.9-27 micron observations with JWST. These observations show the morphologies and kinematics of the collimated jets from three protostars, the…

Protostellar outflows display wide-angle winds and collimated jets, the magnetocentrifugal launching of which enables accretion onto the protostar. The majority of the outflow mass is likely ejected or entrained molecular H$_2$, which can…

Protostellar jets are an important agent of star formation feedback, tightly connected with the mass-accretion process. The history of jet formation and mass-ejection provides constraints on the mass accretion history and the nature of the…

Fast jets are thought to be a crucial ingredient of star formation because they might extract angular momentum from the disk and thus allow mass accretion onto the star. However, it is unclear whether jets are ubiquitous, and likewise,…

We have performed observations of water maser emission towards a sample of low-mass protostars, in order to investigate the properties of jets associated with the earliest stages of star formation and their interaction with the surrounding…

星系天体物理 · 物理学 2015-05-13 J. -F. Desmurs , C. Codella , J. Santiago-Garcia , M. Tafalla , R. Bachiller

We exploit the increased sensitivity of the recently installed AO SOUL at the LBT to obtain new high-spatial-resolution NIR images of the massive young stellar object IRAS20126+4104 and its outflow. We aim to derive the jet proper motions…

Protostellar jets and outflows are essential ingredients of the star formation process. A better understanding of this phenomenon is important in its own right as well as for many fundamental aspects of star formation. Jets and outflows…

星系天体物理 · 物理学 2023-09-13 Gang Wu , Christian Henkel , Ye Xu , Andreas Brunthaler , Karl M. Menten , Keping Qiu , Jingjing Li , Bo Zhang , Jarken Esimbek

We report continuum GMRT observations aimed to explore the behavior of the jet associated with IRAS 16547-4247 at very low frequencies (325 MHz and 610 MHz). The obtained maps reveal an elongated morphology in the SE-NW direction. In…

太阳与恒星天体物理 · 物理学 2018-12-19 Josep M. Masqué , Solay Jeyakumar , Miguel A. Trinidad , Tatiana Rodríguez-Esnard , CH Ishwara-Chandra

The bipolar jet of the NGC 1333 IRAS 4A2 protostar shows a velocity gradient in the direction perpendicular to the jet axis. This lateral velocity gradient can be seen throughout the jet imaged in a silicon monoxide line, 2500-8700 AU from…

星系天体物理 · 物理学 2015-05-27 Minho Choi , Miju Kang , Ken'ichi Tatematsu

We present a comprehensive study of the large-scale structure, jet and outflow morphology, and kinematics of the Class 0/I protostellar binary Ced 110 IRS4, using JWST NIRCam (F150W and F410M) and MIRI MRS observations from the JWST ERC…

太阳与恒星天体物理 · 物理学 2025-02-04 Mayank Narang , Nagayoshi Ohashi , John J. Tobin , M. K. McClure , Jes K. Jørgensen , Jinshi Sai
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