Development of a three channel photometer for UPSO, Naini Tal

被引：9

作者：

Ashoka, BN

Kumar

Babu, VC

Seetha, S

Girish, V

Gupta, SK

Sagar, R

Joshi, S

Narang, P

机构：

[1] ISRO, Satellite Ctr, Bangalore 560017, Karnataka, India

[2] Uttar Pradesh State Observ, Naini Tal 263129, India

[3] Univ Delhi, Sri Venkateswara Coll, Delhi 110007, India

来源：

JOURNAL OF ASTROPHYSICS AND ASTRONOMY | 2001年 / 22卷 / 01期

关键词：

photometry; light curves; variable stars;

D O I：

10.1007/BF02933593

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The design and performance of a portable three channel photometer installed at the Uttar Pradesh State Observatory (UPSO), NainiTal 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.

引用

页码：131 / 144

页数：14