Stapelfeldt, Karl R. and Burrows, Christopher J. and Krist, John E. and Watson, Alan M. 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 Westphal, James A. (1998) Hubble Space Telescope Imaging of the Circumstellar Nebulosity of T Tauri. Astrophysical Journal, 508 (2). pp. 736-743. ISSN 0004-637X. http://resolver.caltech.edu/CaltechAUTHORS:20120119-070830756
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Short-exposure Planetary Camera images of T Tauri have been obtained using broadband filters spanning the wavelength range 0.55-0.80 μm. The optically visible star lies very close to an arc of reflection nebulosity. The arc's northern arm extends approximately 5" from the star, while its southwestern arm appears brighter and extends only 2". The arc shows an approximate symmetry along an axis toward the west-northwest, the direction of Hind's Nebula and the blueshifted molecular outflow. The morphology of the reflected light is similar to models of scattered light within an illuminated, axisymmetric outflow cavity in a circumbinary envelope, viewed ≈ 45° from the outflow axis. However, our model images do not successfully account for the amount of limb brightening that is seen. No optical counterpart to the infrared companion is seen to a limiting magnitude of V = 19.6, which suggests A_V > 7 mag toward this source. There is no evidence for an optical tertiary, to a limiting ΔV = 5.1 mag fainter than the primary, at the position where such an object has been previously reported.
|Additional Information:||Issue 2 (1998 December 1) Received 1997 December 18, accepted for publication 1998 July 1 Submitted to the Astrophysical Journal. This work is supported by NASA contract NAS7-1260 to the WFPC2 Investigation Definition Team at the Jet Propulsion Laboratory, California Institute of Technology. KRS also acknowledges support from the Origins of Solar Systems Research Program.|
|Subject Keywords:||circumstellar matter; stars: individual (T Tau); stars: pre-main sequence ISM: jets and outflows; stars: imaging|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Ruth Sustaita|
|Deposited On:||19 Jan 2012 16:41|
|Last Modified:||13 Jan 2015 22:47|
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