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    • Identification of Stellar Sequences in Various Stellar Systems: ESO65-SC03, Teutsch 106, Turner 6

      Gireesh C. Joshi

      Research Article Volume 38 Issue 4 December 2017 Article ID 0072

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/joaa/038/04/0072

    • Keywords

       

      Methods: analytical; data analysis; techniques: photometric; catalogues; open stellar clusters: individual.

    • Abstract

       

      The spatial morphological study of stellar clusters has been carried out through their identified probable members. The field stars decontamination is performed by the statistical cleaning approach (depends on the magnitude and colour of stars within the field and cluster regions). The colour magnitude ratio diagram (CMRD) approach is used to separate the stellar sequences of cluster systems. The age, distance and reddening of each cluster is estimated through the visual inspection of best fitted isochrone in colour magnitude diagrams (CMDs). The mean proper motion values of stellar clusters are obtained through the extracted data from PPMXL and UCAC4 catalogs. Moreover, these values vary according to the extracted data-set from these catalogues. This variation has occurred due to different estimation efficiency of proper motions. The two colour ratio (TCR) and two colour magnitude ratio (TCMR) values of each cluster is determined by utilizing the WISE and PPMXL catalogues, these values are found abnormal for Teutsch 106. In addition, the TCMR values are similar to TCR values at longer wavelength, whereas both values are far away from each other at shorter wavelength. The fraction of young stellar objects (YSOs) is also computed for each cluster.

    • Author Affiliations

       

      Gireesh C. Joshi1

      1. Department of Physics, Kumaun University, Nainital, Uttarakhand 263 001, India.

    • Dates

       
      Published
      1 December 2017
      Manuscript received
      17 July 2017
      Accepted
      23 October 2017

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