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相关论文: The X-ray puzzle of the L1551 IRS 5 jet

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We have for the first time detected X-ray emission associated with a protostellar jet, on the jet emanating from the L1551 IRS5 protostar. The IRS5 protostar is hidden behind a very large absorbing column density, making the direct…

天体物理学 · 物理学 2009-11-07 F. Favata , C. V. M. Fridlund , G. Micela , S. Sciortino , A. A. Kaas

We have for the first time detected X-ray emission associated with a proto-stellar jet, on the jet emanating from L1551 IRS5. The IRS5 proto-star is hidden beyond a very large absorbing column density, making the direct observation of the…

天体物理学 · 物理学 2007-05-23 Fabio Favata , C. V. M. Fridlund , G. Micela , S. Sciortino , A. A. Kaas

Recently X-ray emission from protostellar jets has been detected with both XMM-Newton and Chandra satellites, but the physical mechanism which can give rise to this emission is still unclear. We performed an extensive exploration of a wide…

天体物理学 · 物理学 2009-11-11 R. Bonito , S. Orlando , G. Peres , F. Favata , R. Rosner

Recent observations of the deeply embedded L1551 IRS5 system permit the detailed examination of the properties of both the stellar binary and the binary jet. For the individual components of the stellar binary, we determine their masses,…

天体物理学 · 物理学 2009-11-10 R. Liseau , C. V. M. Fridlund , B. Larsson

We have carried out a thorough optical study of the closest star formation jet. The inner arcminute surrounding the class 0/I binary protostar L1551 IRS5 and its associated jet (HH154) have been observed using the Hubble Space Telescope…

天体物理学 · 物理学 2009-11-10 C. V. M. Fridlund , R. Liseau , A. A. Djupvik , M. Huldtgren , Glenn. J. White , F. Favata , G. Giardino

We have performed, in October 2005, a deep Chandra X-ray observation of HH 154. Comparison with the previous (2001) Chandra observation allows to detect proper motion down to the level predicted by models of X-ray emitting shocks in the…

天体物理学 · 物理学 2009-11-11 F. Favata , R. Bonito , G. Micela , M. Fridlund , S. Orlando , S. Sciortino , G. Peres

Large-scale, decelerating, relativistic X-ray jets due to material ejected from the black-hole candidate X-ray transient and microquasar XTE J1550-564 has been recently discovered with Chandra by Corbel et al. (2002). We find that the…

天体物理学 · 物理学 2009-11-07 X. Y. Wang , Z. G. Dai , T. Lu

Using the Very Large Array (VLA) in the A-configuration, we have obtained a high-resolution 3.6 cm map of a hard X-ray source detected by the Chandra X-ray Observatory in a protostellar clump in Orion molecular cloud 3. Two radio continuum…

天体物理学 · 物理学 2015-06-24 M. Tsujimoto , K. Koyama , N. Kobayashi , M. Saito , Y. Tsuboi , C. J. Chandler

Protostellar jets are known to emit in a wide range of bands, from radio to IR to optical bands, and to date also about ten X-ray emitting jets have been detected, with a rate of discovery of about one per year. We aim at investigating the…

太阳与恒星天体物理 · 物理学 2015-05-18 R. Bonito , S. Orlando , M. Miceli , J. Eislöffel , G. Peres , F. Favata

We present the X-ray images of all the available Chandra observations of the galactic jet source SS 433. We have studied the morphology of the X-ray images and inspected the evolution of the arcsec X-ray jets, recently found to be…

天体物理学 · 物理学 2009-11-10 S. Migliari , R. P. Fender , K. M. Blundell , M. Mendez , M. van der Klis

The core-dominated radio-loud quasar PKS 0637-752 (z = 0.654) was the first celestial object observed with the Chandra X-ray Observatory, offering the early surprise of the detection of a remarkable X-ray jet. Several observations with a…

We have discovered an X-ray jet due to material ejected from the black hole X-ray transient XTE J1550-564. The discovery was first reported by Corbel et al. (Science, 298, 196 and astro-ph/0210224), and here, we present an analysis of the…

The multiple protostellar system L1551 IRS5 exhibits a large-scale bipolar molecular outflow. We have studied this outflow within ~4000 AU of its driving source(s) with the SubMillimeter Array. Our CO(2-1) image at ~4" (~560 AU) resolution…

太阳与恒星天体物理 · 物理学 2011-02-11 Po-Feng Wu , Shigehisa Takakuwa , Jeremy Lim

Using observations with e-MERLIN and the VLA, together with archival data from ALMA, we obtain high-resolution radio images of two binary YSOs: L1551 IRS 5 and L1551 NE, covering a wide range of frequencies from 5 - 336 GHz, and resolving…

We present new X-ray observations of the nucleus, jet and extended emission of the nearby radio galaxy NGC 6251 using the Chandra/ACIS-S camera, together with a reanalysis of archival Chandra/ACIS-I and XMM-Newton/EPIC data. We find that…

天体物理学 · 物理学 2009-11-10 D. A. Evans , M. J. Hardcastle , J. H. Croston , D. M. Worrall , M. Birkinshaw

Using a sub-pixel event repositioning technique, we spatially resolved X-ray emission from the infrared double system IRS 5 in the R Corona Australis molecular cloud with ~0.8" separation. As far as we know, this result - obtained from 8…

天体物理学 · 物理学 2009-11-13 Kenji Hamaguchi , Minho Choi , Michael F. Corcoran , Chul-Sung Choi , Ken'ichi Tatematsu , Rob Petre

We report the Chandra detection of an X-ray jet in 3C 15. The peak of the X-ray emission in the jet is 4.1'' (a projected distance of 5.1 kpc) from the nucleus, and coincident with a component previously identified in the radio and optical…

天体物理学 · 物理学 2009-11-10 J. Kataoka , J. P. Leahy , P. G. Edwards , M. Kino , F. Takahara , Y. Serino , N. Kawai , A. R. Martel

Unexpectedly strong X-ray emission from extragalactic radio jets on kiloparsec scales has been one of the major discoveries of Chandra, the only X-ray observatory capable of sub-arcsecond-scale imaging. The origin of this X-ray emission,…

The L1551-IRS 5 source and its associated atomic jet and molecular outflow has been studied for over 40 years. In this overview of the source this fascinating object and its properties are reviewed and its importance today is re-evaluated.

太阳与恒星天体物理 · 物理学 2016-03-23 Malcolm Fridlund

High angular resolution and sensitive aperture synthesis observations of CS ($J=2-1$) and CS ($J=3-2$) emissions toward L1551 NE, the second brightest protostar in the Taurus Molecular Cloud, made with the Nobeyama Millimeter Array are…

天体物理学 · 物理学 2009-11-07 S. Yokogawa , Y. Kitamura , M. Momose
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