Computer Science
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7232l&link_type=abstract
HST Proposal ID #7232
Computer Science
Hst Proposal Id #7232 Binary Stars
Scientific paper
HD98800, located nearby at a probable distance of 20 pc, is a unique stellar system consisting of two K7-V stars separated by 0.8 arcsec. Composite optical spectra show Li absorption, indicating pre-main sequence age, and IRAS found extraordinarily large amounts 165 K dust emission, suggesting the presence of a possible "zodiacal dust cloud in the making". NICMOS Camera 1 will be used in several bands from 0.8 to 2.0 um to make fully saturated MULTIACCUM images that can be deconvolved to separate the two well resolved bright stars from light scattered by the dust. If the dust cloud is sustained by a recently "failed planet" it should also be resolved at about 0.2 arcsec diameter. Comparisons of dust properties such as {a} scattered to emitted light, {b} color of scattered light and {c} size of the dust cloud can then be made with corresponding data for the solar system. Grism observations centered at 0.97 and 1.41 um will give spectra for both stars. Repeated observations will enable the dynamics of the systems to be established.
No associations
LandOfFree
NICMOS Spectrophotometry and High Resolution Imaging of HD 98800 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with NICMOS Spectrophotometry and High Resolution Imaging of HD 98800, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and NICMOS Spectrophotometry and High Resolution Imaging of HD 98800 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-895241