dc.contributor.author |
Mishra, Anwesh Kumar |
|
dc.contributor.author |
Kamath, U. S |
|
dc.date.accessioned |
2022-07-06T09:35:18Z |
|
dc.date.available |
2022-07-06T09:35:18Z |
|
dc.date.issued |
2022-06 |
|
dc.identifier.citation |
Journal of Astrophysics and Astronomy, Vol. 43, No. 1, 13 |
en_US |
dc.identifier.issn |
0973-7758 |
|
dc.identifier.uri |
http://hdl.handle.net/2248/7978 |
|
dc.description |
Restricted Access |
en_US |
dc.description |
The original publication is available at springerlink.com |
|
dc.description.abstract |
The photometric accuracy in the near-infrared (NIR) wavelength range (0.9–2.6 lm) is strongly
affected by the variability of atmospheric transmission. The Infrared Working Group (IRWG) has recommended filters that help alleviate this issue and provide a common standard of NIR filtersets across different
observatories. However, accurate implementation of these filters are yet to be available to astronomers. In the
meantime, InGaAs based detectors have emerged as a viable option for small and medium telescopes. The
present work explores the combination of IRWG filtersets with InGaAs detectors. A few commercially
available filtersets that approximate the IRWG profile are compared. Design of more accurate IRWG
filtersets suitable for the InGaAs sensitivity range is undertaken using an open-source filter design software –
OpenFilters. Along with the photometric filters iZ, iJ and iH, design of a few useful narrow band filters is
also presented. These filters present opportunities for small and medium telescopes for dedicated long-term
observation of interesting infrared sources. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
Indian Academy of Sciences |
en_US |
dc.relation.uri |
https://doi.org/10.1007/s12036-021-09788-2 |
|
dc.rights |
© Indian Academy of Sciences |
|
dc.subject |
NIR photometry |
en_US |
dc.subject |
Filter design |
en_US |
dc.subject |
Opensource software |
en_US |
dc.title |
Filters for NIR astronomical photometry: comparison of commercial IRWG filters and designs using OpenFilters |
en_US |
dc.type |
Article |
en_US |