Browsing by Subject "stars: chemically peculiar"

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    Open Access
    HD 12098 -A new northern hemisphere roAp star
    (2001) Girish, V; Seetha, S; Martinez, P; Joshi, S; Ashoka, B N; Kurtz, D W; Chaubey, U S; Gupta, S K; Sagar, R
    We present the analysis of 65 hours of high speed photometric observations of HD 12098 taken from State Observatory, Naini Tal and Gurushikhar Observatory, Mt. Abu on sixteen nights spanning from November 1999 to November 2000. HD 12098 is the first rapidly oscillating Ap star discovered from the "Naini Tal-Cape survey for northern hemisphere roAp stars". It is the 32nd in the complete list. HD 12098 exhibits one predominant mode of oscillation at
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    Open Access
    The Naini Tal -Cape survey for pulsations in chemically peculiarA-type stars: I. Methods and preliminary results
    (2001) Martinez, P; Kurtz, D W; Ashoka, B N; Chaubey, U S; Girish, V; Gupta, S K; Joshi, S; Kasturirangan, K; Sagar, R; Seetha, S
    A new survey for pulsating, chemically peculiar A- and F-type stars in the northern hemisphere has been initiated using the 1-m telescope at Uttar Pradesh State Observatory in Naini Tal. The survey is primarily structured to reveal high-overtone pulsations in chemically peculiar A-F stars, but it is also revealing low-overtone
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    Open Access
    The Nainital-Cape Survey: IV. A search for pulsational variability in 108 chemically peculiar stars⋆
    (2016) Joshi, S; Martinez, P; Chowdhury, S; Chakradhari, N K; Joshi, Y C; van Heerden, P; Medupe, T; Kumar, Y B; Kuhn, R B
    Context. The Nainital-Cape Survey is a dedicated ongoing survey program to search for and study pulsational variability in chemically peculiar (CP) stars to understand their internal structure and evolution.