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相关论文: Multiple Components of the Outflow in the Protoste…

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HH 212 is a Class 0 protostellar system found to host a "hamburger"-shaped dusty disk with a rotating disk atmosphere and a collimated SiO jet at a distance of ~ 400 pc. Recently, a compact rotating outflow has been detected in SO and SO2…

During star formation, the accretion disk drives fast MHD winds which usually contain two components, a collimated jet and a radially distributed wide-angle wind. These winds entrain the surrounding ambient gas producing molecular outflows.…

HH 212 is a highly collimated jet discovered in H2 powered by a young Class 0 source, IRAS 05413-0104, in the L1630 cloud of Orion. We have mapped around it in 1.33 mm continuum, 12CO ($J=2-1$), 13CO ($J=2-1$), C18O ($J=2-1$), and SO ($J_K…

天体物理学 · 物理学 2009-11-13 Chin-Fei Lee , Paul T. P. Ho , Henrik Beuther , Tyler L. Bourke , Qizhou Zhang , Naomi Hirano , Hsien Shang

We present the outflows detected in HOPS 373SW, a protostar undergoing a modest $30\%$ brightness increase at 850 $\mu$m. Atacama Large Millimeter/submillimeter Array (ALMA) observations of shock tracers, including SiO 8--7, CH$_3$OH…

星系天体物理 · 物理学 2024-02-01 Seokho Lee , Jeong-Eun Lee , Doug Johnstone , Gregory J. Herczeg , Yuri Aikawa

We present archive Atacama Large Millimeter/Submillimeter Array (ALMA) Band 6 observations of the $^{13}$CO (J=2-1) and $^{12}$CO (J=2-1) molecular line emission of the protostellar system associated with HH 30. The $^{13}$CO molecular line…

太阳与恒星天体物理 · 物理学 2023-12-11 J. A. López-Vázquez , Chin-Fei Lee , M. Fernández-López , Fabien Louvet , O. Guerra-Alvarado , Luis A. Zapata

We present the first detection of spatially resolved protostellar outflows and jets in the outer Galaxy. We observed five star-forming regions in the outer Galaxy (Sh 2--283, NOMF05-16/19/23/63; galactocentric distance = 15.7--17.4 kpc)…

HH 211 is a highly collimated jet originating from a nearby young Class 0 protostar. Here is a follow-up study of the jet with our previous observations at unprecedented resolution up to ~ 0.3" in SiO (J=8-7), CO (J=3-2), and SO…

星系天体物理 · 物理学 2015-05-18 Chin-Fei Lee , Tatsuhiko I. Hasegawa , Naomi Hirano , Aina Palau , Hsien Shang , Paul T. P. Ho , Qizhou Zhang

Rotating outflows from protostellar disks might trace extended magneto-hydrodynamic (MHD) disk winds (DWs), providing a solution to the angular momentum problem in disk accretion for star formation. In the jet system HH 212, a rotating…

星系天体物理 · 物理学 2021-02-10 Chin-Fei Lee , Benoit Tabone , Sylvie Cabrit , Claudio Codella , Linda Podio , Ferreira , J. , Jacquemin-Ide , J

The origin and impact of outflows on proto-planetary disks and planet formation are key open questions. DG Tau B, a Class I protostar with a structured disk and a striking rotating conical CO outflow, recently identified with ALMA as one of…

太阳与恒星天体物理 · 物理学 2024-08-21 Valentin Delabrosse , Catherine Dougados , Sylvie Cabrit , Benoit Tabone , Lukasz Tychoniec , Tom Ray , Linda Podio , Melissa McClure

As part of the ALMA Large Program "Early Planet Formation in Embedded Disks" (eDisk), 12CO (2 - 1) was observed towards 19 nearby low-mass protostars. Of these objects, 15 sources are found to show molecular outflow emission. Based on their…

Stretching a length reaching 10 pc projected in the plane of sky, the radio jet associated with Herbig-Haro objects 80 and 81 (HH 80-81) is known as the largest and best collimated protostellar jet in our Galaxy. The nature of the molecular…

星系天体物理 · 物理学 2019-05-01 Keping Qiu , Friedrich Wyrowski , Karl Menten , Qizhou Zhang , Rolf Guesten

We have observed the late Class I protostellar source Elias~29 at a spatial-resolution of 70~au with the Atacama~Large~Millimeter/submillimeter~Array (ALMA) as part of the FAUST Large Program. We focus on the line emission of SO, while that…

太阳与恒星天体物理 · 物理学 2025-01-22 Yoko Oya , Eri Saiga , Anna Miotello , FAUST members

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

HH 212 is a nearby (400 pc) highly collimated protostellar jet powered by a Class 0 source in Orion. We have mapped the inner 80" (~ 0.16 pc) of the jet in SiO (J=8-7) and CO (J=3-2) simultaneously at ~ 0.5 resolution with the Atacama…

星系天体物理 · 物理学 2015-06-11 Chin-Fei Lee , Naomi Hirano , Qizhou Zhang , Hsien Shang , Paul T. P. Ho , Yosuke Mizuno

We observed the HH 211 jet in the submillimeter continuum and the CO(3-2) and SiO(8-7) transitions with the Submillimeter Array. The continuum source detected at the center of the outflow shows an elongated morphology, perpendicular to the…

天体物理学 · 物理学 2009-11-13 A. Palau , P. T. P. Ho , Q. Zhang , R. Estalella , N. Hirano , H. Shang , C. -F. Lee , T. L. Bourke , H. Beuther , Y. -J. Kuan

HH 212 is a nearby (460 pc) protostellar jet discovered in H$_2$ powered by a Class 0 source, IRAS 05413-0104, in the L1630 cloud of Orion. It is highly collimated and symmetric with matched pairs of bow shocks on either side of the source.…

天体物理学 · 物理学 2009-11-13 Chin-Fei Lee , Paul T. P. Ho , Henrik Beuther , Tyler L. Bourke , Naomi Hirano , Hsien Shang , Qizhou Zhang

The origin of outflows and their exact impact on disk evolution and planet formation remain crucial open questions. DG Tau B is a Class I protostar associated with a rotating conical CO outflow and a structured disk. Hence it is an ideal…

太阳与恒星天体物理 · 物理学 2022-12-14 A. de Valon , C. Dougados , S. Cabrit , F. Louvet , L. A. Zapata , D. Mardones

HH 211 is a nearby young protostellar system with a highly collimated jet. We have mapped it in 352 GHz continuum, SiO (J=8-7), and HCO+ (J=4-3) emission at up to ~ 0.2" resolution with the Submillimeter Array (SMA). The continuum source is…

星系天体物理 · 物理学 2011-02-11 Chin-Fei Lee , Naomi Hirano , Aina Palau , Paul T. P. Ho , Tyler L. Bourke , Qizhou Zhang , Hsien Shang

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…

The Atacama Large Millimeter/submillimeter Array Survey of Orion Planck Galactic Cold Clumps (ALMASOP) reveals complex nested morphological and kinematic features of molecular outflows through the CO (J = 2 - 1) and SiO (J = 5 - 4)…

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