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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/042/0058

    • Keywords

       

      X-rays: binaries; stars: neutron; pulsars: individual: Centaurus X-3; X-rays: stars; methods: data analysis; AstroSat: LAXPC.

    • Abstract

       

      We present the timing results of out-of-eclipse observations of Centaurus X-3 spanning half a binary orbit, performed on 12–13 December, 2016 with the Large Area X-ray Proportional Counter (LAXPC) on-board AstroSat. The pulse profile was confirmed to exhibit a prominent pulse peak with a secondary inter-pulse. The systemic spin period of the pulsar was found to be $4.80188 \pm 0.000085$ s in agreement with its spin up trend. The spin up timescale seems to have increased to $7709\pm 58$ yr that points to negative torque effects in the inner accretion disk. We also report the derived values of projected semi-major axis and orbital velocity of the neutron star.

    • Author Affiliations

       

      PARISEE SHIRKE1 SUMAN BALA1 JAYASHREE ROY1 DIPANKAR BHATTACHARYA1

      1. Inter-University Centre for Astronomy and Astrophysics (IUCAA), Post Bag 4, Ganeshkhind, Pune 411 007, India.

    • Dates

       
      Published
      28 June 2021
      Manuscript received
      30 October 2020
      Accepted
      6 January 2021
      Final version published online
      28 June 2021

  • 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.

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