HST and spectroscopic observations of the L1551 IRS5 jets (HH154)

Fridlund, C.V.M. and Liseau, Rene and Djupvik, A.A. and Huldtgren-White, M. and White, G.J. and Favata, F. and Giardino, G. (2005) HST and spectroscopic observations of the L1551 IRS5 jets (HH154). Astronomy & Astrophysics, 436 (3). pp. 983-997. ISSN 0004-6361. (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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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 with the WFPC2 camera, the ESO New Technology Telescope with the EMMI spectrograph and the Nordic Optical Telescope with the ALFOSC spectrograph. This data set is compared to earlier ground based imaging with the aim to study the evolution of this particular jet, and its possible interaction with the molecular material in the bipolar molecular outflow associated with this source. The velocity field of the jet is mapped out. The highest velocities are found in the vicinity of the recently discovered X-ray source emanating from a shock in this jet. The energy radiated by the X-ray source is compatible with these velocities. The H alpha and H beta emission from the jet is used to determine the extinction, which is found to increase inwards in the jet towards the protostar. The extinction towards the X-ray source is consistent with the one determined from the X-ray spectrum.

Item Type: Article
Additional information: 48 E D P SCIENCES 933XX
Uncontrolled keywords: ISM : individual objects : L1551; ISM : jets and outflows; ISM : Herbig Haro objects; stars : formation; stars : pre-main sequence HERBIG-HARO OBJECTS; FE-II; OPTICAL SPECTROSCOPY; MOLECULAR CLOUD; EXTINCTION LAW; BOW SHOCK; HH 29; L1551-IRS-5; VELOCITY; IMAGES
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences
Depositing User: Maggie Francis
Date Deposited: 06 Sep 2008 00:19
Last Modified: 14 Jul 2014 08:28
Resource URI: https://kar.kent.ac.uk/id/eprint/10912 (The current URI for this page, for reference purposes)
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