Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986plas.rept..156t&link_type=abstract
In NASA, Washington Reports of Planetary Astronomy, 1985 p 156-157 (SEE N87-12407 03-89)
Astronomy and Astrophysics
Astronomy
Accretion Disks, Astronomical Photometry, Infrared Spectroscopy, Stellar Envelopes, Stellar Evolution, Astronomical Photography, Charge Coupled Devices, Coronagraphs, Planetary Systems, Protostars
Scientific paper
Images were acquired of a circumstellar disk of orbiting material around the nearby star beta Pictoris. This material is believed to be associated with the formation of planets and provides a first look at a planetary system much younger than our own. Preliminary work was also done to acquire multicolor photometric data and polarimetry on the beta Pictoris disk as well. A coronagraphic search for other proto-planetary systems is also underway. Coronagraphic imaging provided the first clear images and a determination of the geometric albedo of the rings of Uranus. A search for material around the asteroid Amphitrite showed that the region around the asteroid was free of particles larger than 500 meters in radius or diffuse material with an optical depth larger than .000001. NASA IRTF infrared images of Jupiter and Saturn are providing information on the relative heights and cloud top temperatures of atmospheric features.
Smith Benjamin A.
Terrile Richard J.
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