Imaging polarimetry of HL Tauri and GG Tauri: A geometrically thin disk around GG Tauri

Details Imaging polarimetry of HL Tauri and GG Tauri: A geometrically thin disk around GG Tauri Imaging polarimetry of HL Tauri and GG Tauri: A geometrically thin disk around GG Tauri

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...422l..21y&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 422, no. 1, p. L21-L24

Astronomy and Astrophysics

Astrophysics

10

Planetary Systems, Speckle Interferometry, Stellar Envelopes, T Tauri Stars, Occultation, Planets, Polarized Light, Reflection Nebulae

Scientific paper

Polarimetric imaging observations in the K' band toward HL Tau and GG Tau were made using the University of Hawaii 2.2 m telescope. While both T Tauri stars are associated with gaseous circumstellar material extended more than 500 AU in radius, a reflection nebula was found only around HL Tau. We suggest that the HL Tau nebula is most likely light scattered by the dust grains at a high latitude above the disk plane. The absence of a reflection nebula around GG Tau can be explained if the dust grains are confined close to the disk plane. The thin GG Tau disk could be a protosolar nebula or a site of ongoing solar system formation.

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