The Nainital-Cape Survey-IV
Santosh Joshi (Aryabhatta Research Institute of Observational Sciences, (ARIES), Manora peak, Nainital-India), P. Martinez (SpaceLab, Department of, Electrical Engineering, University of Cape Town, South Africa), Sowgata, Chowdhury (Department of Physics, Christ University

TL;DR
The Nainital-Cape survey systematically searches for pulsational variability in chemically peculiar stars using high-speed photometry, aiming to discover new pulsators and study their internal structures and evolution.
Contribution
This paper reports 108 new observations of CP stars, expanding the dataset for asteroseismic analysis and providing detailed light curves and astrophysical parameters.
Findings
Detection limit of 0.6 mmag in the 1-4 mHz frequency range.
Both sites can detect pulsations with similar sensitivity, Sutherland being slightly better.
Presented data on 108 CP stars and tabulated known roAp star parameters.
Abstract
The Nainital-Cape survey is a dedicated ongoing survey programme to search for and study pulsational variability in chemically peculiar (CP) stars to understand their internal structure and evolution. The main aims of this survey are to find new pulsating Ap and Am stars in the northern and southern hemisphere and to perform asteroseismic studies of these new pulsators. The survey is conducted using high-speed photometry. The candidate stars were selected on the basis of having Stromgren photometric indices similar to those of known pulsating CP stars. Over the last decade a total of 337 candidate pulsating CP stars were observed for the Nainital-Cape survey, making it one of the longest ground-based surveys for pulsation in CP stars in terms of time span and sample size. The previous papers of this series presented seven new pulsating variables and 229 null results. In this paper we…
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