Results of drift scanning to optimize the SNR in the mid-infrared

Bibcode
2021AAS...23713903T
Torres-Quijano, A.; Packham, C.; Fernández Acosta, S.
Bibliographical reference

American Astronomical Society Meeting Abstracts

Advertised on:
1
2021
Number of authors
3
IAC number of authors
1
Citations
0
Refereed citations
0
Description
Chopping and nodding is made to reduce the effects of the time variable components of (a) sky variation and (b) array background in the mid-infrared waveband when observing from the ground. This process, however, has many issues including reduced on-object photon collection time, demands on the secondary mirror, and nodding the telescope to remove the radiative offset imprinted by the chopping. Some groups are experimenting with drift-scanning, and in this poster we present the results of our test observations using the CanariCam MIR instrument on the 10.4m GranTeCan.
Type
Non-refereed

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