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相关论文: 25 AU Angular Resolution Observations of HH 211 wi…

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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

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 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 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

Recent high-resolution high-sensitivity observations of protostellar jets have shown many to possess deviations to their trajectories. HH 211 is one such example where sub-mm observations with the SMA have revealed a clear…

太阳与恒星天体物理 · 物理学 2016-05-25 Anthony Moraghan , Chin-Fei Lee , Po-Sheng Huang , Bhargav Vaidya

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

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…

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

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 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 the Atacama Large Millimeter/submillimeter Array Band 7 observations of the CO (J=3-2) line emission of the protostellar system HH 212 at $\sim$24 au spatial resolution and compare them to those of the SiO (J=8-7) and SO (J=8-7)…

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)…

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 have mapped the SiO J=5-4 line at 217GHz from the HH211 molecular outflow with the Submillimeter Array (SMA). The high resolution map (1.6''x0.9'') shows that the SiO J=5-4 emission comes from the central narrow jet along the outflow…

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

To investigate the disk formation and jet launch in protostars is crucial to comprehend the earliest stages of star and planet formation. We aim to constrain the properties of the molecular jet and the disk of the HH 212 protostellar system…

星系天体物理 · 物理学 2015-09-09 L. Podio , C. Codella , F. Gueth , S. Cabrit , R. Bachiller , A. Gusdorf , C. -F. Lee , B. Lefloch , S. Leurini , B. Nisini , M. Tafalla

We present an extensive study of the structure and kinematics of the jet and outflow of EC 53, a Class I protostar with a quasi-periodic variability, using combined James Webb Space Telescope (JWST) and Atacama Large…

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

High-resolution R~50 000 long-slit spectroscopy of the inner knots of the highly symmetrical protostellar outflow HH 212 was obtained in the 1-0 S(1) line of H2 at 2.12 micron with a spatial resolution of ~0.45 arcsec. At the resulting…

太阳与恒星天体物理 · 物理学 2015-05-13 S. Correia , H. Zinnecker , S. T. Ridgway , M. J. McCaughrean

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…

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