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Browsing by Author "Mondal, S"

Browsing by Author "Mondal, S"

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  • Lunar Occulations with Infrared Arrays 
    Chandrasekhar, T; Shah, R; Mondal, S (Astronomical Society of India, 2003)
    Recently we have successfully observed the lunar occulation of a carbon star IRC+20120 and a M5 star IRC+10241 with the NICMOS sub array at the 1.2m Gurushikhar telescope. The integration times were respectively 5 millisec ...
  • A remote-controlled fast infrared photometer for simultaneous lunar occultation observations in K and L bands - successful observations of two M3 giants 
    Mondal, S; Chandrasekhar, T; Kikani, P. K (Astronomical Society of India, 2002-09)
    Details of successful use of a new high speed infrared photometer for recording lunar occultation light curves simultaneously in K (2.2 /..Lm) and L (3.6 fJ.m) bands are presented, The photometer has also a provision to ...
  • SS 433: results of a recent multiwavelength campaign 
    Chakrabarti, S. K; Anandarao, B. G; Pal, S; Mondal, S; Nandi, A; Bhattacharyya, A; Mandal, S; Sagar, R; Pandey, J. C; Pati, A. K; Saha, S. K (Royal Astronomical Society, 2005-09)
    We conducted a multiwavelength campaign in 2002 September-October, to observe SS 433. We used the Giant Meter Radio Telescope for radio observations, the Physical Research Laboratory Infrared Telescope at Mt Abu for infrared ...
  • A two channel high speed photometer for lunar occultation studies in the near - IR 
    Mondal, S; Chandrasekhar, T; Ashok, N. M; Kikani, P. K (Astronomical Society of India, 1999)
    Lunar occultaion in the near infrared has been demonstrated by the PRL group to be an effective method of determining the angular size (in milliarcsecond range)and accurate effective temperature of red giants, supergiants ...

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