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Browsing by Author "Ramya, M. Anche"

Browsing by Author "Ramya, M. Anche"

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  • Determination of polarimetric capabilities of astronomical telescopes 
    Ramya, M. Anche (Indian Institute of Astrophysics, 2019-02)
    Polarimetric observations of celestial objects reveal information regarding magnetic field, scattered dust and planetary atmosphere. The degree of po- larization, which is of interest to astronomers, ranges from ...
  • Estimation of polarization aberrations and its effect on the point spread function of the Thirty Meter Telescope 
    Ramya, M. Anche; Anupama, G. C; Sriram, S; Sankarasubramanian, K; Skidmore, W (SPIE--The International Society for Optical Engineering, 2018-07)
    The Thirty Meter Telescope (TMT) is a future generation telescope proposed to be located in Mauna Kea, Hawaii or in La Palma in the Canary Islands. The telescope will have a segmented primary and an inclined tertiary mirror. ...
  • The estimation of the instrumental polarization and crosstalk at the focus of the mid-infrared imaging system for the Thirty Meter Telescope 
    Ramya, M. Anche; Packham, Chris; Anupama, G. C; Sankarasubramanian, K; Maheswar, G; Manoj, P (SPIE--The International Society for Optical Engineering, 2018-07)
    The Thirty Meter Telescope (TMT) is a proposed future generation telescope which will be located on either Maunakea, Hawaii or La Palma in the Canary islands. A thermal-infrared (TIR) imager and spectrometer (MICHI) combined ...
  • Geometry of nova ejecta 
    Pavana, M; Anupama, G. C; Ramya, M. Anche; Kamath, U. S; Selva Kumar, G (Cambridge University Press, 2020)
    We present photo-ionization and morpho-kinematic analyses of the ejecta of novae. The sample consists of ten novae belonging to the Fe II, He/N and hybrid classes. The Fe II class of novae in the sample have bipolar cone-like ...
  • Optical spectroscopic and polarization properties of 2011 outburst of the recurrent nova T Pyxidis 
    Pavana, M; Ramya, M. Anche; Anupama, G. C; Ramaprakash, A. N; Selvakumar, G (EDP Sciences, 2019-02)
    Aims. We aim to study the spectroscopic and ionized structural evolution of T Pyx during its 2011 outburst, and also study the variation in degree of polarization during its early phase. Methods. Optical spectroscopic data ...
  • Polarimetric analysis of the Thirty Meter Telescope (TMT) for modeling instrumental polarization characteristics 
    Atwood, J; Skidmore, W; Anupama, G. C; Ramya, M. Anche; Krishna Reddy; Sen, Asoke (SPIE--The International Society for Optical Engineering, 2014-08)
    The Thirty Meter Telescope (TMT) will be called upon to support a polarimetric observing capability. Many different observing programs covering a range of different science areas are being considered for the TMT and a model ...
  • SN 2018hna: 1987A-like supernova with a signature of shock breakout 
    Singh, A; Sahu, D. K; Anupama, G. C; Brajesh Kumar; Harsh Kumar; Yamanaka, Masayuki; Baklanov, Petr V; Tominaga, Nozomu; Blinnikov, Sergei. I; Maeda, Keiichi; Anirban, D; Bhalerao, Varun; Ramya, M. Anche; Barway, Sudhanshu; Akitaya, Hiroshi; Nakaoka, Tatsuya; Kawabata, Miho; Kawabata, Koji. S; Sasada, Mahito; Takagi, Kengo; Maehara, Hiroyuki; Isogai, Keisuke; Kino, Masaru; Taguchi, Kenta; Nagao, Takashi (IOP Publishing, 2019-09-10)
    High-cadence ultraviolet, optical, and near-infrared photometric and low-resolution spectroscopic observations of the peculiar Type II supernova (SN) 2018hna are presented. The early-phase multiband light curves (LCs) ...

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