The Open UniversitySkip to content
 

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

Fridlund, C. V. M.; Liseau, R.; Djupvik, A. A.; White, G. J.; Favata, F. and Glardino, G. (2005). HST and spectroscopic observations of the L1551 IRS5 jets (HH154). Astronomy & Astrophysics, 436(3) pp. 983–997.

Full text available as:
[img] PDF (Version of Record) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (785Kb)
DOI (Digital Object Identifier) Link: http://dx.doi.org/10.1051/0004-6361:20042399
Google Scholar: Look up in Google Scholar

Abstract

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 Hα and Hβ 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: Journal Article
Copyright Holders: 2005 ESO
ISSN: 1432-0746
Keywords: L1551; interstellar matter jets and outflows; Herbig Haro objects; stellar formation; pre-main sequence stars
Academic Unit/Department: Science > Physical Sciences
Interdisciplinary Research Centre: Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR)
Item ID: 24782
Depositing User: Tracy Bartlett
Date Deposited: 31 Mar 2011 11:42
Last Modified: 25 Aug 2014 22:08
URI: http://oro.open.ac.uk/id/eprint/24782
Share this page:

Altmetrics

Scopus Citations

Actions (login may be required)

View Item
Report issue / request change

Policies | Disclaimer

© The Open University   + 44 (0)870 333 4340   general-enquiries@open.ac.uk