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Browsing Publications of Astronomical Society of India by Author "Ojha, D. K"

Browsing Publications of Astronomical Society of India by Author "Ojha, D. K"

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  • Asymptotic giant branch stars in the ISOGAL survey 
    Ojha, D. K; Omont, A; Simon, G; Blommaert, J (Astronomical Society of India, 2000)
    We present and analyse the data of a field at 1 = 0o, b = +1o from the ISOGAL survey of selected areas of the inner Galactic bulge at 15 and 7 ?m. In combination with IJKs data from the near-infrared southern sky survey ...
  • Far-infrared study of a few southern Galactic star forming regions 
    Ojha, D. K; Ghosh, S. K; Verma, R. P (Astronomical Society of India, 2002-09)
    Simultaneous far-infrared observations at 130 and 200 pm of the southern Galactic star forming regions (associated with mAS 12326-6245, IRAS 17059-4132, !RAS 17160-3707 & IRAS 17233-3606) have been carried out using the ...
  • First light observations with TIFR near-infrared camera 
    Ojha, D. K; Ghosh, S. K; Verma, R. P; Chakraborti, A; Anandarao, B. G (Astronomical Society of India, 2002-09)
    The TIFR near-infrared camera (TmCAM) is based on the SBRC InSb focal plane array (58x62 pixels) sensitive between 1-5 pm. TIRCAM had its first engineering run at Gurusikhar 1.2 meter PRL telescope at Mount Abu during ...
  • Infrared and radio observations of IRAS 16571-4029 (RCW 116B). 
    Verma, R. P; Ghosh, S. K; Kulkarni, V. K; Ojha, D. K (Astronomical Society of India, 2003)
    Southern HII region RCW 116B (IRAS 16571-4029) has been mapped simultaneously at two far infrared wavelengths (at 150 and 210 μm) with a resolution of ~1 using the TIFR 1 m balloon-borne telescope. High angular resolution ...
  • Infrared and radio observations towards the ultracompact HII region IRAS 19111+1048. 
    Vig, S; Ghosh, S. K; Kulkarni, V. K; Ojha, D. K; Verma, R. P (Astronomical Society of India, 2003)
    Southern HII region RCW 116B (IRAS 16571-4029) has been mapped simultaneously at two far infrared wavelengths (at 150 and 210 μm) with a resolution of ~1 using the TIFR 1 m balloon-borne telescope. High angular resolution ...
  • Infrared L'band (lambda-cen- ~3.9 mu-m) observations with TIFR near-infrared camera (TIRCAM). 
    Ojha, D. K; Ghosh, S. K; Verma, R. P; Anandarao, B. G (Astronomical Society of India, 2003)
    TIRCAM is based on the SBRC InSb Focal Plane Array (58 x 62 pixels) sensitive between 1- 5 μm. TIRCAM system is described in Ojha et al. (2002). TIRCAM had its first light observations during March-April 2001 from Gurusikhar ...
  • Mapping of the Orion molecular cloud in the [CII] line and continuum at 158 μm 
    Mookerjea, B; Ghosh, S. K; Kaneda, H; Nakagawa, T; Ojha, D. K; Rengarajan, T. N; Shibai, H; Verma, R. P (Astronomical Society of India, 2001)
    A fabry Perot Spectrometer (FPS) tuned to the astrophysically interesting (CII) line at 157.7409 µm, developed at ISAS (Japan) has been successfully interfaced to the TIFR 100 cm far-infrared balloon borne telescope. A ...
  • A Multiwavelength Study of the Galactic Star Forming Region Associated with IRAS 20255+3712 / S 106 
    Ghosh, S. K; Kulkarni, V. K; Ojha, D. K; Verma, R. P (Astronomical Society of India, 2003)
    The Galactic star forming region associated with IRAS 20255+3712 / S 106 has been mapped simultaneously in 150 and 210 μm bands using the TIFR 1-metre balloon borne far-infrared (FIR) telescope with an angular resolution ...
  • Near-infrared JH photometry of young open cluster Be 59 
    Sharma, S; Ogura, K; Pandey, A. K; Ojha, D. K; Bhatt, B. C (Astronomical Society of India, 2007)
    We present near-infrared J H photometry and optical slitless spectroscopy of stars in the field of the young cluster Be 59. The J /(J- H )colour-magnitude diagram of the cluster yields a distance modulus of (m - M )0= 10.0 ...
  • A near-infrared study of the massive young star IRAS 02230+6202 and its surroundings 
    Mishra, S; Anandarao, B. G; Ojha, D. K (Astronomical Society of India, 2002-09)
  • Optical / IR Follow-up of ISOGAL survey 
    Ojha, D. K; Omont, A; Simon, G. (Astronomical Society of India, 1998)
  • Spatial distribution of Unidentified Infrared emission Bands in star forming regions 
    Ghosh, S. K; Ojha, D. K (Astronomical Society of India, 2002-09)
    Midcourse Space Experiment (MSX) has surveyed the Galactic plane in four infrared bands between 6 and 25 /Lm, two of which cover several Unidentified Infrared emission Bands (UIBs). A scheme has been developed to extract ...
  • Spectrophotometric observations of B type stars HR 1207 and HR 1770 
    Joshi, S. C; Ojha, D. K (Astronomical Society of India, 1991)
    Two high rotational velocity B type stars HR 1207 and HR 1770 have been observed spectrophotometrically. The energy distribution curves of the stars have been compared with model atmospheres in the ultraviolet and visible ...
  • Spectroscopic observations of first ISOGAL sources 
    Ojha, D. K; Sivarani, T; Parthasarathy, M; Omont, A; Ganesh, S; Simon, G (Astronomical Society of India, 2000)
    Infrared Space Observatory Galactic (ISOGAL) survey at 7 and 15 μm of ~ 22 deg2 of the inner galactic disk and bulge, has detected several hundred thousand sources. Combining ISOGAL survey with I, J, H, Ks data of DENIS ...
  • A Study of the Galactic Star Forming Region IRAS 02593+6016 / S 201 in Infrared and Radio Wavelengths 
    Ojha, D. K; Ghosh, S. K; Kulkarni, V. K; Testi, L; Verma, R. P; Vig, S (Astronomical Society of India, 2003)
    We present infrared and radio observations of IRAS 02593+6016 / S 201 star forming region. A young star cluster is observed in this region, which contains different classes of young stellar objects. The near-infrared (NIR) ...
  • UBV CCD standards near 5C1 radio sources at intermediate galactic latitude I 
    Mohan, V; Ojha, D. K; Bienayme, O; Paliwal, D. C; Pandey, A. K; Robin, A. L; Bhatt, B. C (Astronomical Society of India, 1994)
    We have been doing a photometric and astrometric sample survey programme on Schmidt plates in a few selected directions in the Galaxy with an aim to study galactic stellar populations. In order to calibrate Schmidt plates ...
  • Warp of the Galactic Disk as seen in Mid Infrared from Midcourse Space Experiment 
    Vig, S; Ghosh, S. K; Ojha, D. K (Astronomical Society of India, 2003)
    The nature of the warp structure in the distribution of stellar as well as warm interstellar dust (WISD) components in the Galactic disk has been investigated using respective mid infrared emissions. Such a study with high ...

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