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

Torres-Quijano, A.; Packham, C.; Fernández Acosta, S.
Referencia bibliográfica

American Astronomical Society Meeting Abstracts

Fecha de publicación:
1
2021
Número de autores
3
Número de autores del IAC
1
Número de citas
0
Número de citas referidas
0
Descripción
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.