HST/NICMOS Observations of L1551 IRS5

Details HST/NICMOS Observations of L1551 IRS5 HST/NICMOS Observations of L1551 IRS5

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.1807c&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #18.07; Bulletin of the American Astronomical Society, Vol. 32, p.1434

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained HST/NICMOS Camera 2 images of L1551 IRS5, with a nominal FWHM resolution of ~20 AU. Observations were made with the F110W, F160W, F204M, F187N and F212N filters. All the images will be presented. L1551 IRS5 is the prototype Class I object, still embedded within a dusty infalling molecular envelope and bipolar molecular outflow. By comparing the astrometric positions given in the literature, we have determined that L1551 IRS5 is moving with approximately the same proper motion as the rest of the Taurus-Auriga cloud. When the proper motion is applied to the HST/NICMOS data, and the source aligned with the sources seen in the radio, preliminary findings indicate that if the radio emission is coming from the circumstellar shells of forming stars, the infrared emission is associated with only one of these stars.

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