Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.2405r&link_type=abstract
2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #24.05; Bulletin of the American Astronomical Society, V
Astronomy and Astrophysics
Astronomy
Scientific paper
The presence of faint background stars within the 3" field-of-view (FOV) of SIM confuses the measurements and introduces errors that can be significantly larger than the precision with which the measurements are expected to be made. Earlier studies on understanding the nature and magnitude of these errors have indicated that the errors depend upon the disposition of the sources within the FOV, baseline orientation, instrumental throughput, spectral energy distribution of the stars and the number of spectral channels used for recording the data. However, these earlier studies have not incorporated the actual measurement processthe measurement of intensity over the FOV as a function of path delay, in the case of confused fields. We report results of a detailed study undertaken in an effort to model the measurement process as accurately as possible and identify the approaches that can be used in order to obtain the best fit to the measured data. We plan to use this model to account for the error introduced by the confusing sources.
Allen Reeshemah
Rengaswamy Sridharan
No associations
LandOfFree
Crowded Field Astrometry with SIM 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 Crowded Field Astrometry with SIM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crowded Field Astrometry with SIM will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1156024