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相关论文: Anatomy of HH 111 from CO observations : a bow sho…

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We present a new set of high-resolution molecular line maps of the gas immediately surrounding various Herbig-Haro (HH) knots of the giant HH flow HH 315, from the young star PV Cephei. The observations, aimed at studying the entrainment…

天体物理学 · 物理学 2009-11-07 Hector G. Arce , Alyssa A. Goodman

We present high sensitivity and high angular resolution images of the high velocity (vLSR>30kms^-1) CO emission in the J=1-0 and J=2-1 lines of the Orion KL region. These results reveal the morphology of the high-velocity CO emission at the…

天体物理学 · 物理学 2007-05-23 A. Rodriguez-Franco , J. Martin-Pintado , T. L. Wilson

In the BHR71 region, two low-mass protostars drive two distinguishable outflows. They constitute an ideal laboratory to investigate the effects of shock chemistry and the mechanisms that led to their formation. We aim to define the…

星系天体物理 · 物理学 2017-02-01 M. Benedettini , A. Gusdorf , B. Nisini , B. Lefloch , S. Anderl , G. Busquet , C. Ceccarelli , C. Codella , S. Leurini , L. Podio

We present a multiline CS survey towards the brightest bow-shock B1 in the prototypical chemically active protostellar outflow L1157. We made use of (sub-)mm data obtained in the framework of the Chemical HErschel Surveys of Star forming…

星系天体物理 · 物理学 2015-06-23 A. I. Gómez-Ruiz , C. Codella , B. Lefloch , M. Benedettini , G. Busquet , C. Ceccarelli , B. Nisini , L. Podio , S. Viti

We present near infrared images in H2 at 2.12um of the HH 7/11 outflow and its driving source SVS 13 taken with HST NICMOS 2 camera, as well as archival Ha and [SII] optical images obtained with the WFPC2 camera. The NICMOS high angular…

天体物理学 · 物理学 2009-11-07 A. Noriega-Crespo , A. Cotera , E. Young , H. Chen

Outflows play a key role in the star and planet formation processes. Some outflows show discrete clumps of cold molecular gas moving at extremely high velocities (EHVs) of $\sim$100 km s$^{-1}$, known as ''molecular bullets'', that are…

The Cepheus E outflow has been studied in the mid and far infrared using the ISO CAM and LWS instruments, and at millimetric wavelengths using OVRO. In the near and mid-IR, its morphology is similar to that expected for a jet driven…

天体物理学 · 物理学 2009-11-06 A. Moro-Martin , A. Noriega-Crespo , S. Molinari , L. Testi , J. Cernicharo , A. Sargent

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 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

The protostellar outflow HH211 is of considerable interest since it is extremely young and highly collimated. Here, we explore the outflow through imaging and spectroscopy in the near-infrared to determine if there are further diagnostic…

We present high spatial resolution (750 AU at 250 pc) maps of the B1 shock in the blue lobe of the L1157 outflow in four lines: CS (3-2), CH3OH (3_K-2_K), HC3N (16-15) and p-H2CO (2_02-3_01). The combined analysis of the morphology and…

We present near infrared (IR) spectra (0.98--2.5 mu m) from the group of Herbig-Haro (HH) objects comprising HH99: a series of knots forming a bow, HH99B, and a separate knot, HH99A. Observations of H2, [Fe II] and [C I] are used to…

天体物理学 · 物理学 2009-11-10 C. McCoey , T. Giannini , D. R. Flower , A. Caratti o Garatti

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…

We present high angular resolution (12"-24") and high sensitivity 12CO and 13CO J=2-1 and J=1-0 observations of the HH 1-2 outflow. The observations show the molecular counterpart, moving with a velocity of approx. 30 km/s, of the optical…

天体物理学 · 物理学 2009-10-31 A. Moro-Martin , J. Cernicharo , A. Noriega-Crespo , J. Martin-Pintado

New, high-sensitivity interferometric CO J=2-1 observations of the HH 7-11 outflow show that despite previous doubts, this system is powered by the Class I source SVS 13. The molecular outflow from SVS 13 is formed by a shell with a large…

天体物理学 · 物理学 2007-05-23 R. Bachiller , F. Gueth , S. Guilloteau , M. Tafalla , A. Dutrey

We report on spectro-imaging observations of the Herbig-Haro 2 outflow with the ISOCAM camera onboard the Infrared Space Observatory (ISO). The [Ne II}] 12.81 microns and [Ne III]15.55 microns lines are detected only towards the jet working…

天体物理学 · 物理学 2009-11-07 B. Lefloch , J. Cernicharo , S. Cabrit , A. Noriega-Crespo , A. Moro-Martin , D. Cesarsky

The unprecedented sensitivity of Herschel coupled with the high resolution of the HIFI spectrometer permits studies of the intensity-velocity relationship I(v) in molecular outflows, over a higher excitation range than possible up to now.…

太阳与恒星天体物理 · 物理学 2015-06-11 B. Lefloch , S. Cabrit , G. Busquet , C. Codella , C. Ceccarelli , J. Cernicharo , J. R. Pardo , M. Benedettini , D. C. Lis , B. Nisini

We have used the Hubble Space Telescope to acquire new broad-band and narrow-band images of the optical line emission and red continuum associated with the HH 7-11 stellar jet in the NGC 1333 star formation region. Combining the new…

太阳与恒星天体物理 · 物理学 2019-05-29 P. Hartigan , R. Holcomb , A. Frank

(Abridged) We present a molecular survey of the outflows powered by L1448-mm and IRAS 04166+2706, two sources with prominent wing and extremely high velocity (EHV) components in their CO spectra. The molecular composition of the two…

星系天体物理 · 物理学 2015-05-19 M. Tafalla , J. Santiago-Garcia , A. Hacar , R. Bachiller

We present hydrodynamic simulations of molecular outflows driven by jets with a long period of precession, motivated by observations of arc-like features and S-symmetry in outflows associated with young stars. We simulate images of not only…

天体物理学 · 物理学 2009-11-10 Michael D. Smith , Alex Rosen
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