HST/NICMOS Imaging of HL Tau and XZ Tau

Details HST/NICMOS Imaging of HL Tau and XZ Tau HST/NICMOS Imaging of HL Tau and XZ Tau

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...19410510c&link_type=abstract

American Astronomical Society Meeting 194, #105.10

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained HST/NICMOS images of HL Tau and XZ Tau using Camera 2 with a nominal plate scale of 0.0755+/-0.005 arcsec/pixel. We selected the filter combination F110W, F160W, F187N, F204M and F212N, to investigate the NIR continuum emission, Paalpha and H_2 features within the region. The data was reduced using the NICRED package and software developed by the NICMOS team. We will present the continuum subtracted narrow band images and point-spread-function (PSF) subtracted images at all wavelengths. The images are diffraction limited with a measured FWHM of ~ 0.''11 at 1.104\micron. At the distance of HL Tau ( ~ 160 pc), this corresponds to an angular resolution of ≲18 AU. Therefore, with the PSF subtracted images we will be able to investigate the properties of the proposed dust accretion disk reported at ~ 150 AU by Close et. al. (1997).

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