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相关论文: A study of the wiggle morphology of HH 211 through…

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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

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

HH 211 is a highly collimated jet with a chain of knots and a wiggle structure on both sides of a young Class 0 protostar. We used two epochs of Atacama Large Millimeter/submillimeter Array (ALMA) data to study its inner jet in the…

太阳与恒星天体物理 · 物理学 2021-03-10 Kai-Syun Jhan , Chin-Fei Lee

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

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

We use the James Webb Space Telescope (JWST) and its Mid-Infrared Instrument (MIRI) (5-28 um), to study the embedded HH 211 flow. We map a 0.95'x0.22' region, covering the full extent of the blue-shifted lobe, the central protostellar…

HH 212 is a nearby (400 pc) Class 0 protostellar system showing several components that can be compared with theoretical models of core collapse. We have mapped it in 350 GHz continuum and HCO+ J=4-3 emission with ALMA at up to ~ 0.4"…

星系天体物理 · 物理学 2015-06-19 Chin-Fei Lee , Naomi Hirano , Qizhou Zhang , Hsien Shang , Paul T. P. Ho , Ruben Krasnopolsky

We present Spitzer IRAC images of the HH 111 outflow, that show a wealth of condensations/knots in both jet and counterjet. Studying the positional distribution of these knots, we find very suggestive evidence of a mirror symmetric pattern…

太阳与恒星天体物理 · 物理学 2015-05-27 A. Noriega-Crespo , A. C. Raga , V. Lora , K. R. Stapelfeldt , S. J. Carey

We have mapped the protostellar jet HH 211 in 342 GHz continuum, SiO ($J=8-7$), and CO ($J=3-2$) emission at $\sim$ \arcs{1} resolution with the Submillimeter Array (SMA). Thermal dust emission is seen in continuum at the center of the jet,…

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

HH 211 is a young Class 0 protostellar system, with a flattened envelope, a possible rotating disk, and a collimated jet. We have mapped it with the Submillimeter Array in 341.6 GHz continuum and SiO J=8-7 at ~ 0.6 resolution. The continuum…

The combination of ALMA submillimeter and JWST/MIRI mid-infrared observations offers a transformative view of protostellar jets and outflows by probing cold and warm gas components across diverse physical conditions. We present a detailed…

星系天体物理 · 物理学 2025-09-16 Somnath Dutta

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

Herbig-Haro (HH) jets are commonly thought of as homogeneous beams of plasma traveling at hypersonic velocities. Structure within jet beams is often attributed to periodic or ``pulsed'' variations of conditions at the jet source.…

天体物理学 · 物理学 2011-02-11 Kristopher Yirak , Adam Frank , Andrew J. Cunningham , Sorin Mitran

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 investigated the possible cause-effect relation between the wiggling shape of two stellar jets, MHO 1502 and MHO 2147, and the potential binarity of the respective driving stars. We present high-angular-resolution H$_2$ (2.122 $\mu$m)…

太阳与恒星天体物理 · 物理学 2022-01-26 L. V. Ferrero , G. Günthardt , L. García , M. Gómez , V. M. Kalari , H. P. Saldaño

We have selected six sources (G209.55-19.68S2, G205.46-14.56S1$_{-}$A, G203.21-11.20W2, G191.90-11.21S, G205.46-14.56S3, and G206.93-16.61W2) from the Atacama Large Millimeter/submillimeter Array Survey of Orion Planck Galactic Cold Clumps…

The prospect of relativistic jets exhibiting complex morphologies as a consequence of geodetic precession has long been hypothesised. We have carried out a 3D hydrodynamics simulation study varying the precession cone angle, jet injection…

星系天体物理 · 物理学 2020-10-07 Maya Horton , Martin Krause , Martin Hardcastle

Solar jets are collimated plasma flows moving along magnetic field lines and accelerated at low altitude following magnetic reconnection. Several of them originate from anemone-shaped low-lying arcades and the most impulsive ones tend to be…

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…

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
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