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  • NGC 1245 - an intermediate age open cluster 
    Subramaniam, A (Astronomical Society of India, 2003)
    The B, V CCD photometry of 916 stars in the field of the high galactic latitude intermediate age open cluster NGC 1245 is presented. The cluster parameters were estimated with the help of V vs(B-V) colour magnitude diagram ...
  • NGC 146: a young open cluster with a Herbig Be star and intermediate mass pre-main sequence stars 
    Subramaniam, A; Sahu, D. K; Sagar, R; Vijitha, P (EDP Sciences, 2005-09)
    We present UBV CCD photometry and low-resolution spectra of stars in the field of the young open cluster NGC 146. UBV photometry of 434 stars were used to estimate the E(B-V) reddening of 0.55 $\pm$ 0.04 mag and BV photometry ...
  • NGC 1624 (OCl 403, Cr 53) – A very young open cluster 
    Sujatha, S; Babu, G. S. D (Springer, 2006)
    We present the first CCD photometric UBVRI observations of the not-so-well-studied open cluster NGC 1624 (OCl 403, Cr 53; α2000 = 04 h 40 m 36 s; δ2000 = + 50˚ 27′ 42″ Trumpler class = I 2 p N). This cluster was observed ...
  • NGC 1624-2: a slowly rotating, X-ray luminous Of?cp star with an extraordinarily strong magnetic field 
    Wade, G. A; Maiz, J. A; Martins, F; Petit, V; Grunhut, J; Walborn, N. R; Barba, R. H; Gagne, M; Garcia-Melendo, E; Jose, J; Moffat, A. F. J; Naze, Y; Neiner, C; Pellerin, A; Penades, O. M; Shultz, M; Simon-Diaz, S; Sota, A (Wiley-Blackwell, 2012-09)
    This paper presents a first observational investigation of the faint Of?p star NGC 1624-2, yielding important new constraints on its spectral and physical characteristics, rotation, magnetic field strength, X-ray emission ...
  • NGC 6712: the variable star population of a tidally disrupted globular cluster 
    Deras, D; Arellano Ferro, A; Lazaro, C; Bustos Fierro, I. H; Calderon, J. H; Muneer, S; Giridhar, S (Oxford University Press on behalf of the Royal Astronomical Society, 2020-04)
    We present an analysis of VI CCD time-series photometry of globular cluster NGC 6712. Our main goal is to study the variable star population as indicators of the cluster mean physical parameters. We employed the Fourier ...
  • NGC 7419: a young open cluster with a number of very young intermediate mass pre-MS stars 
    Subramaniam, A; Mathew, B; Bhatt, B. C; Ramya, S (Blackwell Publishing, 2006-06)
    We present a photometric and spectroscopic study of the young open cluster NGC 7419, which is known to host a large number of classical Be stars for reasons not well understood. Based on CCD photometric observations of 327 ...
  • NIFS : A Near Infrared Imaging Fabry-Perot Spectrometer 
    Anandarao, B. G; Nanda Kumar, M. S; Jog, N. S; Patel, R. T (Astronomical Society of India, 2000)
    We describe here a Near-Infrared Imaging Fabry-Perot Spectrometer (NIFS ) operating in the K band to provide a maximum spectral resolution of 2000-3000 over two optional fields of view of ~ 2? x 2? and 4? x 4? with plate ...
  • Night sky at the Indian Astronomical Observatory during 2000-2008 
    Stalin, C. S; Hegde, M; Sahu, D. K; Parihar, P. S; Anupama, G. C; Bhatt, B. C; Prabhu, T. P (Astronomical Society of India, 2008-09)
    This paper presents an analysis of the optical night sky brightness and extinction coefficient measurements in UBVRI at the Indian Astronomical Observatory (IAO), Hanle, during the period 2000–2008. They are obtained from ...
  • Night Sky Extinction Measurements at the Indian Astronomical Observatory, Hanle 
    Parihar, P. S; Sahu, D. K; Bhatt, B. C; Subramaniam, A; Anupama, G. C; Prabhu, T. P (Astronomical Society of India, 2003)
    We present the estimates of the night sky extinction at the Indian Astronomical Observatory. Also presented are the estimates of the night sky brightness. The extinction in the U band at IAO is found to be lower than the ...
  • Night time geomagnetic effects of solar flares 
    Sastri, J. H (European Geophysical Society, 1975-07)
    A study of the normal run magnetogram data of two equatorial stations, Kodaikanal (Geo. Long. 77 deg 28 min E, Dip 3.5 deg N) and Huancayo (Geo. Long. 75 deg 20 min W, Dip 2.0 deg N), for a three year period (1969-1971), ...
  • Night time variation of Fried's parameter at VBT, Kavalur 
    Saha, S. K; Chinnappan, V (Astronomical Society of India, 1999)
    The night time variation of the Fried's parameter, r lower script o is measured on 28-29 March 1991, at the Cassegrain focus of 2.34 m Vainu Bappu Telescope (VBT), at Vainu Bappu Observatory (VBO), Kavalur, India, using ...
  • Nighttime Pi2 micropulsations at Kodaikanal 
    Sastri, J. H; Murthy, B. S (National Institute of Science Communication And Information Resources, 1975-09)
  • Nighttime thermospheric meridional winds at Cachoeira Paulista (23°S, 45°W): Evidence for effects of the equatorial midnight pressure bulge 
    Batista, I. S; Sastri, J. H; de Medeiros, R. T; Abdu, M. A (American Geophysical Union, 1997-08)
    We have studied the local time and seasonal variations of thermospheric nighttime meridional winds at the low-latitude station, Cachoeira Paulista, Brazil, corresponding to quiet geomagnetic conditions of high solar activity ...
  • NIR properties of Be stars in star clusters in the Magellanic Clouds 
    Paul, K. T; Subramaniam, A; Mathew, B; Shruthi, S. B (Elsevier B.V, 2017-10)
    Magellanic Clouds are the nearby galaxies which are ideal to study the properties of metal poor stellar population. In this study, we explore the near-IR properties of optically identified classical Be stars in 19 star ...
  • Nirmala Sitharaman launches work on cosomology centre Mysuru 
    Deccan Herald (Deccan Herald, 2022-03-07)
  • NLST: India's National Large Solar Telescope 
    Hasan, S. S; Soltau, D; Kärcher, H; Süß, M; Berkefeld, T (Wiley-Blackwell, 2010-06)
    This article introduces the new Indian 2 m telescope which has been designed by MT Mechatronics in a detailed conceptual design study for the Indian Institute of Astrophysics, Bangalore. We describe the background of the ...
  • NLST: the Indian National Large Solar Telescope 
    Hasan, S. S; Soltau, D; Kärcher, H; Süss, M; Berkefeld, T (SPIE-The International Society for Optical Engineering, 2010-07)
    India is planning a new solar telescope with an aperture of 2-m for carrying out high resolution studies of the Sun. Site characterization is underway at high altitude locations in the Himalayan mountains. A detailed concept ...
  • No Need for Black Holes 
    Apparao, K. M. V (Astronomical Society of India, 1974-09)
  • No signature of Circum-Solar Dust Ring up to 5R. from Optical Polarization and Near IR Observations of 24 October 1995 Total Solar Eclipse 
    Prasad, C. D; Ambastha, A. K (Indian Institute of Astrophysics, Bangalore, 1997)
    A circum-solar dust ring, consisting of interplanetary particles, is believed to be situated at 4R., and temporarily variable in anti-phase with the solar activity cycle. The signature of such a ring should be observable ...
  • Nobel prize to Chandrasekhar and Fowler for astrophysics 
    Physics Today (Physics Today, 1984-01)

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