Hubble Space Telescope WFPC2 Imaging of FS Tauri and Haro 6-5B
- Creators
- Krist, John E.
- Stapelfeldt, Karl R.
- Burrows, Christopher J.
- Ballester, Gilda E.
- Clarke, John T.
- Crisp, David
- Evans, Robin W.
- Gallagher, John S., III
- Griffiths, Richard E.
- Hester, J. Jeff
- Hoessel, John G.
- Holtzman, Jon A.
- Mould, Jeremy R.
- Scowen, Paul A.
- Trauger, John T.
- Watson, Alan M.
- Westphal, James A.
Abstract
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.
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.Attached Files
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Additional details
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- 53673
- Resolver ID
- CaltechAUTHORS:20150114-091533170
- NASA
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2015-01-15Created from EPrint's datestamp field
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2021-11-10Created from EPrint's last_modified field