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Browsing by Author "Narasimha, D."

Browsing by Author "Narasimha, D."

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  • First microlensing candidate towards M 31 from the Nainital microlensing survey 
    Joshi, Y. C.; Pandey, A. K.; Narasimha, D.; Sagar, R. (2005)
    We report our first microlensing candidate NMS-E1 towards M 31 from the data accumulated during the four years of Nainital Microlensing Survey. Cousin R and I band observations of ∼13´ × 13´ field in the direction of M ...
  • Identification of 13 Cepheids and 333 other variables in M31 
    Joshi, Y. C.; Pandey, A. K.; Narasimha, D.; Sagar, R.; Eraud, Y. G. (2003)
    We present Cousins R and I band photometry of variable stars in a ∼13` × 13` region in the disk of M31 galaxy, obtained during 141 nights. Of the 26 Cepheid variables present in the region, two are newly discovered, 11 are ...
  • Nainital microlensing survey - long term photometric study of two novae in M31 
    Joshi, Y. C.; Narasimha, D. (2012)
    Two classical novae were detected in the disk of M 31. The photometric observations were taken in Cousins R and I bands during the four year Naini Tal Microlensing Survey which was being carried out during 1998–2002 with ...
  • Nainital Microlensing Survey – detection of short period Cepheids in the disk of M31 
    Joshi, Y. C.; Narasimha, D.; Pandey, A. K.; Sagar, R. (2010)
    Cepheids are the primary distance indicators for the external galaxies, so discovery of large number of Cepheid variables in far-off galaxies offers a unique opportunity to determine the accurate distance of the host ...
  • Photometric study of two novae in M 31 
    Joshi, Y. C.; Pandey, A. K.; Narasimha, D.; Giraud-Heraud, Y.; Sagar, R.; Kaplan, J. (2004)
    We report R ̜ I ̜ light curves of 2 novae in the M 31 galaxy which were detected in the four year Nainital Microlensing Survey. One of these novae has been tracked from the initial increase in flux while other has been ...
  • Possible microlensing event in the direction of M31 
    Joshi, Y. C.; Pandey, A. K.; Narasimha, D.; Sagar, R. (2003)
    M 31 has been a promising target to search for microlensing events. Consequently a number of groups have started observations towards this galaxy, however, analyzing the observations in the large background of unresolved ...
  • Search for microlensing events towards M31 galaxy 
    Joshi, Y. C.; Pandey, A. K.; Narasimha, D.; Sagar, R. (2001)
    M31, the prominent galaxy of the Local Group, is located at a distance of about 700 kpc. Due to its convenient orientation, it is an alluring target for gravitational microlensing to search for massive astrophysical compact ...

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