IIA Institutional Repository

Browsing by Author "Sengupta, S"

Browsing by Author "Sengupta, S"

Sort by: Order: Results:

  • The Search for another earth 
    Sengupta, S (Indian Academy of Sciences, 2016-07)
    Is there life anywhere else in the vast cosmos?Are there planets similar to the Earth? For centuries,these questions baffled curious minds. Eithera positive or negative answer, if found oneday, would carry a deep philosophical ...
  • The search for another earth - Part II 
    Sengupta, S (Indian Academy of Sciences, 2016-10)
    In the first part, we discussed the various methods for thedetection of planets outside the solar system known as theexoplanets. In this part, we will describe various kinds ofexoplanets. The habitable planets discovered ...
  • A Search for Polarized Thermal Emission from Directly Imaged Exoplanets and Brown Dwarf Companions to Nearby Stars 
    Jensen-Clem, R; Millar-Blanchaer, M. A; van Holstein, R. G; Mawet, Dimitri; Graham, J; Sengupta, S; Marley, M. S; Snik, Frans; Vigan, A; Hinkley, S; de Boer, Jos; Girard, J. H; De Rosa, R. J; Bowler, B. P; Wiktorowicz, S. J; Perrin, M. D; Crepp, J. R; Macintosh, B (IOP Publishing, 2020-12)
    Aerosols in the atmospheres of cloudy gas giant exoplanets and brown dwarfs scatter and polarize these objects' thermal emission. If such an object has an oblate shape or nonuniform cloud distribution, the net degree of ...
  • Spectro-Polarimetry of Self-Luminous Extrasolar Planets 
    Sengupta, S (Indian Academy of Sciences, 2013-06)
    Planets which are old and close to their parent stars are considered as reflecting planets because their intrinsic temperature is extremely low but they are heated strongly by the impinging stellar radiation and hence ...
  • The Sunyaev-Zel Effect by Multiple Scattering: Numerical solution of the transfer equations 
    Sengupta, S (World Scientific Publishing Company, 2004-05-10)
    The radiative transfer equations for multiple inverse Compton scattering of the Cosmic Microwave Background Radiation (CMBR) by the hot intra-cluster electrons are solved numerically. The spherical isothermal and inhomogeneous ...
  • Theoretical Spectra of the AM Canum Venaticorum Binary System SDSS J0926+3624: Effects of Irradiation onto the Donor Star 
    Sengupta, S; Taam, R. E (IOP Publishing, 2011-09-20)
    Taking into account a range of parameters determined from the evolution- ary models and available observational data, the detailed non-LTE spectrum for the primary star and the irradiated donor star in the AM CVn system ...
  • The thermal evolution of mass losing donors in AM CVn binary systems 
    Taam, R. E; Deloye, C. J; Sengupta, S (Astronomical Society of the Pacific, 2009-08)
    The thermal evolution of arbitrarily degenerate stellar models for the mass losing component in AM CVn binary systems formed through the white dwarf evolutionary channel is investigated for a range of initial orbital periods ...
  • Transit Light Curves for Exomoons: Analytical Formalism 
    Saha, Suman; Sengupta, S (American Astronomical Society, 2022-09-01)
    The photometric transit method has been the most effective method to detect and characterize exoplanets as several ground based as well as space based survey missions have discovered thousands of exoplanets using this ...
  • An upper limit on the ratio between the extreme ultraviolet and the bolometric luminosities of stars hosting habitable planets 
    Sengupta, S (Indian Academy of Sciences, 2016-07)
    An abundance analysis is reported of 58-K giants identified by Famaey et al. ( 2005 , A&A, 430, 165) as highly probable members of the Hercules stream selected from stars north of the celestial equator in the Hippar ...
  • Worlds beyond our own: the search for habitable planets 
    Sengupta, S (Springer International Publishing, 2015)
    This is a book on planets: Solar system planets and dwarf planets. And planets outside our solar system – exoplanets. How did they form? What types of planets are there and what do they have in common? How do they differ? ...

Search DSpace

Browse

My Account