Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hstc.work..217h&link_type=abstract
The 1997 HST Calibration Workshop with a New Generation of Instruments, p. 217
Astronomy and Astrophysics
Astronomy
3
Algorithms, Astronomical Polarimetry, Cameras, Thermal Vacuum Tests, Polarizers, Near Infrared Radiation, Data Reduction, Imaging Spectrometers, Polarized Light, Data Processing, Faint Objects, Nebulae
Scientific paper
The polarimetric capabilities of Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) are demonstrated from data obtained during the Early Release Observations of IRC+10216 and CRL 2688 (the Egg Nebula). Preflight Thermal Vacuum tests revealed that each polarizer has a unique polarizing efficiency, and that the position angle offsets differ from the nominal positions of O deg, 120 deg and 240 deg. Therefore an algorithm different from that of an ideal polarizer is required for proper reduction of astronomical polarimetry data. We discuss this new algorithm and the results of its application to NICMOS data. We also present preliminary estimates of the Instrumental Polarization, the sensitivity of the grisms to polarized light, and the accuracy of NICMOS imaging polarimetry for faint and low polarization objects. Finally, we suggest strategies for maximizing the success of NICMOS polarimetry observations.
Hines Dean Carter
Lytle Dyer
Schmidt Gary D.
No associations
LandOfFree
The polarimetric capabilities of NICMOS 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 The polarimetric capabilities of NICMOS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The polarimetric capabilities of NICMOS will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1788368