The optical nebulosity around the T Tauri star RNO 91 in the L43 dense molecular core

Details The optical nebulosity around the T Tauri star RNO 91 in the L43 dense molecular core The optical nebulosity around the T Tauri star RNO 91 in the L43 dense molecular core

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97.1110s&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, April 1989, p. 1110-1113, 1267, 1268.

Other

10

Astronomical Photometry, Molecular Clouds, Stellar Cores, T Tauri Stars, Astronomical Spectroscopy, Charge Coupled Devices, Maximum Entropy Method

Scientific paper

Imaging photometric and spectroscopic observations of RNO 91, a T Tauri star associated with the dense molecular core in the dark cloud L43, are presented. A maximum entropy algorithm has been used to increase the resolution to the F, I, and H-alpha CCD images. The restored images reveal substantial structure in the nebular emission around the star on spatial scales of 100-1000 AU in projection. Several of the structural features consist of knots roughly aligned on a radius from the star. The most prominent feature extends in a direction precisely coincident with the axis of the blue lobe of the associated molecular outflow known to be disrupting the molecular core. While similar in morphology to optical jets observed around other T Tauri stars, the spectra of these elongated nebular features are indistinguishable from that of RNO 91, indicating that the extended structure is illuminated by reflected light. The spectra show no evidence for the emission features characteristic of previously observed optical jets.

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