Ashoka, B. N. ; Kumar, ; Babu, V. C. ; Seetha, S. ; Girish, V. ; Gupta, S. K. ; Ram Sagar, ; Joshi, S. ; Narang, P. (2001) Development of a three channel photometer for UPSO, Naini Tal Journal of Astrophysics and Astronomy, 22 (1). pp. 131-144. ISSN 0250-6335
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Related URL: http://dx.doi.org/10.1007/BF02933593
Abstract
The design and performance of a portable three channel photometer installed at the Uttar Pradesh State Observatory (UPSO), Naini Tal is described. The photometer is modular and the whole unit can be disassembled as individual channels such that the system can also be used as a single channel or two channel photometer. The system also has provision to monitor a guide star. The instrument was put into operation since November 1999 on the 1m Sampurnanand telescope at UPSO, Naini Tal. Since then, it is used extensively for the 'Survey of rapidly oscillating Ap (roAp) stars in the northern sky' from UPSO. Observational results using this new photometer in its initial phase of operation are discussed. The advantage of having continuous sky measurement is demonstrated.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Photometry; Light Curves; Variable Stars |
| ID Code: | 65283 |
| Deposited On: | 17 Oct 2011 03:40 |
| Last Modified: | 18 May 2016 13:21 |
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