IGO Publications

Permanent URI for this collectionhttp://localhost:4000/handle/11007/1765

Browse

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    IUCAA 2 meter telescope and its first light instrument IFOSC
    (Bull. Astr. Soc. India, 2002-06-05) Gupta, Ranjan; Burse, Mahesh P.; Das, H.K.; Kohok, A.; Ramaprakash, A.N; Engineer, S.; Tandon, S. N.
    The various features of the IUCAA 2-meter telescope, its site parameters and considerations made for preserving the local seeing in terms of ventilation, thermal emissivity of the dome etc are described. The first light back-end instrument for this telescope, i.e. Iucaa Faint Object Spectrometer and Camera (IFOSC), too is described in some detai
  • No Thumbnail Available
    Item
    Optical Spectroscopy of Candidates of Young Stellar Objects in NGC 1333
    (2001-01-01) Itoh, Yoichi; Gupta, Ranjan; Oasa, Yumiko
    We carried out low-resolution optical spectroscopy of 14 low-luminosity young stellar object (YSO) candidates in the NGC 1333 cluster. These objects were previously identified by the near-infrared imaging survey. Eleven objects were confirmed as YSOs by the H line emission. Strengths of the H emission are correlated with the near-infrared excesses of the objects. Spectral types of all YSOs are estimated to be M-type, indicative of low-mass. Comparisons of the results of our spectroscopic observations and the previous photometric observations with evolutionary tracks on the HR diagram suggest two objects to be young brown dwarfs.