NICSPol: a near infrared polarimeter for the 1.2 m telescope at Mount Abu infrared observatory

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dc.contributor.author Aarthy, Esakkiappan
dc.contributor.author Rai, Archita
dc.contributor.author Ganesh, Shashikiran
dc.contributor.author Vadawale, Santosh V.
dc.date.accessioned 2019-08-06T09:37:23Z
dc.date.available 2019-08-06T09:37:23Z
dc.date.issued 2019-07
dc.identifier.citation Aarthy, Esakkiappan; Rai, Archita; Ganesh, Shashikiran and Vadawale, Santosh V., "NICSPol: a near infrared polarimeter for the 1.2 m telescope at Mount Abu infrared observatory", arXiv, Cornell University Library, DOI: arXiv:1907.10040, Jul. 2019. en_US
dc.identifier.uri https://arxiv.org/abs/1907.10040
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/4641
dc.description.abstract NICSPol is a near infrared imaging polarimeter developed for the Near Infrared Camera and Spectrograph (NICS), one of the back end instruments of the 1.2 m Cassegrain telescope at the Mount Abu Infrared Observatory (MIRO), India. The polarimeter consists of a rotating wire grid polarizer which is mounted between the telescope optics and NICS. The polarimetric observations are carried out by rotating the polarizer using a motorized mechanism to determine the Stokes parameters, which are then converted into the polarization fraction and polarization angle. Here we report the details of the instrument and the results of observations of IR polarimetric standards. A set of polarized and unpolarized standards were observed using NICSPol over J, H and Ks bands covering 0.8 to 2.5 micro m. The observations of polarized standards using NICSPol show that, NICSPol can constrain polarization within ~1% for sources brighter than ~16 magnitude in JHKs bands. NICSPol is a general purpose instrument which could be used to study variety of astrophysical sources such as AGNs, Pulsars, XRBs, Supernovae, star forming regions etc. With few NIR polarimeters available world-wide so far, NICSPol would be the first imaging NIR polarimeter in India.
dc.description.statementofresponsibility by Esakkiappan Aarthy, Archita Rai, Shashikiran Ganesh and Santosh V. Vadawale
dc.language.iso en en_US
dc.publisher Cornell University Library en_US
dc.subject Near IR Polarimetry en_US
dc.subject NICSPol en_US
dc.subject polarimetric techniques en_US
dc.subject IR polarization standards en_US
dc.title NICSPol: a near infrared polarimeter for the 1.2 m telescope at Mount Abu infrared observatory en_US
dc.type Preprint en_US


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