1. Home
    2. Journals
    3. Journal of Astrophysics and Astronomy
    4. Volume 26
    5. Issue 2-3

    • HD 101065, the most peculiar star: First results from precise radial velocity study

      D. E. Mkrtichian A. P. Hatzes

      Volume 26 Issue 2-3 June 2005 pp 185-191

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/026/02-03/0185-0191

    • Keywords

       

      Stars: oscillations; roAp stars

    • Abstract

       

      In this paper we discuss the prospects for asteroseismology with spatial resolution and motivate studies of the most chemically peculiar roAp star HD 101065. We present the first results from a high-precision radial velocity (RV) study of HD 101065 based on data spanning four nights that were acquired using the HARPS echelle-spectrometer at the ESO 3.6 m telescope. The analysis of individual nights showed the amplitude and phase modulation of the dominant mode. The analysis of the whole data set showed the presence of multi-periodic oscillations with two groups of equally-spaced modes. We find Δυ = 65.2μHz and δυ = 7.3μHz for the large and the small spacing, respectively. HD 101065 is the only roAp star to show the existence of two groups ofl = 0, 2 andl = 1, 3 excited modes.

    • Author Affiliations

       

      D. E. Mkrtichian1 2 A. P. Hatzes3

      1. ARCSEC, Sejong University, Seoul - 143 747, Korea
      2. Astronomical Observatory, Odessa National University, Shevchenko Park, Odessa - 65014, Ukraine
      3. Thüringer Landessternwarte Tautenburg, Sternwarte 5, Tautenburg - D-07778, Germany

    • Dates

       
      Published
      9 June 2005

  • Journal of Astrophysics and Astronomy | News

    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.

Contact | Site index