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  • Mass extinction due to oscillation of Sun about the mid-galactic plane 
    Das, C; Rana, N. C (Astronomical Society of India, 1993-06)
    Apparent periodicity was observed in the mass extinction event for the past few hundred million years. Previous investigations suggested the observed period to be somewhat lower than the calculated period of oscillation ...
  • Mass function of open clusters NGC 1857 and Czernik 25 
    Sujatha, S; Babu, G. S. D; Ananthamurthy, S (Astronomical Society of India, 2006)
    The first CCD photometric UBVRI observations of the open clusters NGC 1857 (Czernik 20, OCl 427) and Czernik 25 (OCl 493) are presented. The observations were obtained on 28 November 2003 with the 2m Himalayan Chandra ...
  • The Mass Function of Young Star Clusters in our Galaxy and Nearby Galaxies: Is It Universal? 
    Sagar, R (International Astronomical union, 2002)
    Mass functions (MFs) derived from photometric observations of young star clusters of our Galaxy, the Magellanic Clouds (MCs), M31 and M33 have been used to investigate the question of universality of the initial mass ...
  • Mass function study of six open clusters Be 10, Be 67,To 5, Be 15, Be 71 and King 1 
    Lata, S (Astronomical Society of India, 2005-06)
    In the present study, we have used the CCD data to determine the luminosity and mass function of six open clusters. Members of clusters are identified using photometric and statistical criteria. From these members, we have ...
  • Mass limit on Nemesis 
    Bhalerao, V; Vahia, M. N (Astronomical Society of India, 2005-03)
    We assume that if the sun has a companion, it has a period of 27 Myr corresponding to the periodicity seen in cometary impacts on earth. Based on this assumption, it is seen that the inner Lagrangian point of the interaction ...
  • Mass of the black hole in the Seyfert 1.5 galaxy H 0507+164 from reverberation mapping 
    Stalin, C. S; Jeyakumar, S; Coziol, R; Pawase, R. S; Thakur, S. S (Wiley-Blackwell, 2011-09)
    We present the results of our optical monitoring campaign of the X-ray source H 0507+164, a low-luminosity Seyfert 1.5 galaxy at a redshift z= 0.018. Spectroscopic observations were carried out during 22 nights in 2007, ...
  • Mass segregation in globular clusters 
    Scaria, K. K; Bappu, M. K. V (Indian Academy of Sciences, 1981-09)
  • Mass transfer in ALGOLS and its implications to the mass transfer theory 
    Chaubey, U. S (Astronomical Society of India, 1993)
    he average mass transfer rates in four Algol-type binary stars RZ Cas, TV Cas, SW Cyg and DI Peg are derived from their observed period changes in the light of alternate period change model. The results have been used to ...
  • Mass transfer in AR Lacertae 
    Srivastava, R. K (Astronomical Society of India, 1984-03)
    Evolutionary discussion shows that the possibility of AR Lac being in a semi-detached state of evolution cannot be ruled out. The period variations of AR Lac have been analysed using Biermann & Hall's (1973) model for a ...
  • Mass-varying dark matter and its cosmological signature 
    Das, Anirban; Das, Subinoy; Sethi, Shiv K. (American Physical Society, 2023-10-15)
    Nontrivial dark sector physics continues to be an interesting avenue in our quest to the nature of dark matter. In this paper, we study the cosmological signatures of mass-varying dark matter where its mass changes from ...
  • Massive Star Formation in the Infrared-bright Galaxy NGC 972 
    Ravindranath, S; Prabhu, T. P (The American Astronomical Society, 1998-06)
    We present the results of optical broadband and Hα imaging studies of the infrared-bright galaxy NGC 972. The broadband images and B/R color map reveal the peculiar morphology and complex dust distribution. Massive star ...
  • A mathematical calculation showing that the duration of the Sun's radiating energy is sufficient to meet the demands of Geology 
    Ridsdale, A. C (Astronomical Society of India, 1916)
  • The mathematical genius 
    Deccan Herald (Deccan Herald, 1999-10-26)
  • Mathematical sciences: The dynamics of Colliding Galaxies 
    Namboodiri, P. M. S (2006-01)
    Galaxies interact in a multitude of ways with their environment. Such interactions can alter the morphological type of galaxies, trigger star formation and even produce active galactic nuclei. During the past three decades ...
  • The Mauritius Radiotelescope 
    Golap, K; Issur, N. H; Somanah, R; Dodson, R; Modgekar, M; Sachdev, S; Shankar, N. Udaya; Sastry, Ch. V (Springer Netherlands, 1995-06)
    The Mauritius Radiotelescope (MRT) is a T-shaped array of helical antennas with a 2048 m EW arm and a 890 m South arm. The primary objective of the telescope is to produce a sky survey in the declination zone -15° to -65° ...
  • Maximum acceleration and magnetic field in the early universe 
    Sivaram, C; de Sabbata, Venzo (Kluwer Academic Publishers, 1991-02)
    The maximum acceleration at the Planck epoch is shown to be related to the maximum magnetic field and curvature as well as temperature in that era. Spin-torsion effects at that epoch also lead to same value.
  • A maximum entropy method based scheme for the inversion of extended radio images in gravitationally lensed systems 
    Sunita Nair (Astronomical Society of India, 1993)
    A new scheme is advanced for the process of source reconstruction (or image inversion) from extended images in gravitationally lensed systems which show multiple imaging. We suggest that forward simulations of such systems ...
  • Maximum entropy method for phase-unstable aperture synthesis 
    Shevgaonkar, R. K (European Southern Observatory, 1986-07)
    An application of the Maximum Entropy Method (MEM) to the closure data is described. It is shown that although the basic principle of the method is to obtain a brightness distribution which has highest entropy, the closure ...
  • Maximum entropy method for phase-unstable aperture synthesis 
    Shevgaonkar, R. K (European Southern Observatory, 1986-07)
    An application of the Maximum Entropy Method (MEM) to the closure data is described. It is shown that although the basic principle of the method is to obtain a brightness distribution which has highest entropy, the closure ...
  • Maximum Entropy Method for Polarized Images 
    Shevgaonkar, R. K (The European Southern Observatory, 1987-04)
    A simple maximum entropy method algorithm for deconvolving polarized images obtained from synthesis observations has been described here. A general purpose Fortran program is also developed. it demonstrated that although ...

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