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Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6-5B

Krist, John E. and Stapelfeldt, Karl R. and Burrows, Christopher J. and Ballester, Gilda E. and Clarke, John T. and Crisp, David and Evans, Robin W. and Gallagher, John S., III and Griffiths, Richard E. and Hester, J. Jeff and Hoessel, John G. and Holtzman, Jon A. and Mould, Jeremy R. and Scowen, Paul A. and Trauger, John T. and Watson, Alan M. and Westphal, James A. (1998) Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6-5B. Astrophysical Journal, 501 (2). 841 -852. ISSN 0004-637X. doi:10.1086/305861.

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We have observed the field of FS Tauri (Haro 6-5) with the Wide Field Planetary Camera 2 on the Hubble Space Telescope. Centered on Haro 6-5B and adjacent to the nebulous binary system of FS Tauri A there is an extended complex of reflection nebulosity that includes a diffuse, hourglass-shaped structure. H6-5B, the source of a bipolar jet, is not directly visible but appears to illuminate a compact, bipolar nebula which we assume to be a protostellar disk similar to HH 30. The bipolar jet appears twisted, which explains the unusually broad width measured in ground-based images. We present the first resolved photometry of the FS Tau A components at visual wavelengths. The fluxes of the fainter, eastern component are well matched by a 3360 K blackbody with an extinction of A_V = 8. For the western star, however, any reasonable, reddened blackbody energy distribution underestimates the K-band photometry by over 2 mag. This may indicate errors in the infrared photometry or errors in our visible measurements due to bright reflection nebulosity very close to the star. The binary was separated by 0."239 ± 0."005 at a position angle of 84° ± 1."5 on 1996 January 25. There is no nebulosity around FS Tau A at the orientation suggested for a disk based on previous, ground-based polarization measurements.

Item Type:Article
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URLURL TypeDescription
Stapelfeldt, Karl R.0000-0002-2805-7338
Crisp, David0000-0002-4573-9998
Gallagher, John S., III0000-0001-8608-0408
Mould, Jeremy R.0000-0003-3820-1740
Additional Information:© 1998 The American Astronomical Society. Received 1997 December 18; accepted 1998 February 16. This work was supported by the WFPC2 Investigation Definition Team under a grant from the National Aeronautics and Space Administration. The authors thank the referee, M. Simon, for his useful comments.
Funding AgencyGrant Number
Subject Keywords:binaries: visual; circumstellar matter; ISM: jets and outflows; stars: individual (FS Tauri, Haro 6-5B)
Issue or Number:2
Record Number:CaltechAUTHORS:20150114-091533170
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Official Citation:Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6-5B John E. Krist et al. 1998 ApJ 501 841
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:53673
Deposited On:15 Jan 2015 01:12
Last Modified:10 Nov 2021 20:05

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