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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Real-time discovery of AT2020xnd: a fast, luminous ultraviolet transient with minimal radioactive ejecta 
    Perley, Daniel A; Ho, Anna Y. Q; Yao, Yuhan; Fremling, Christoffer; Anderson, Joseph P; Schulze, Steve; Kumar, Harsh; Anupama, G. C; Barway, Sudhanshu; Bellm, Eric C; Bhalerao, Varun; Chen, Ting-Wan; Duev, Dmitry A; Galbany, Llu´ıs; Graham, Matthew J; Gromadzk, Mariusz; Gutierrez, Claudia P; Ihanec, Nada; Inserra, Cosimo; Kasliwal, Mansi M; Kool, Erik C; Kulkarni, S. R; Laher, Russ R; Masci, Frank J; Neill, James D; Nicholl, Matt; Pursiainen, Miika; Roestel, Joannes van; Sharma, Yashvi; Sollerman, Jesper; Walters, Richard; Wiseman, Philip (Oxford University Press on behalf of Royal Astronomical Society, 2021-12)
    The many unusual properties of the enigmatic AT2018cow suggested that at least some subset of the empirical class of fast blue optical transients (FBOTs) represents a genuinely new astrophysical phenomenon. Unfortunately, ...
  • Real-time wind speed measurement using wavefront sensor data 
    Roopashree, M. B; Vyas, A; Prasad, B. R (SPIE-The International Society for Optical Engineering, 2010-02)
    Real-time measurement of effective wind speed helps in continuous monitoring of the temporal bandwidth in adaptive optics systems. In this paper, we propose a simple and efficient method for estimating wind speed from ...
  • Reappearance of McNeil’s Nebula (V1647 Orionis) and its Outburst Environment 
    Ninan, J. P; Ojha, D. K; Bhatt, B. C; Ghosh, S. K; Mohan, V; Mallick, K. K; Tamura, M; Henning, T (IOP Publishing, 2013-12-01)
    We present a detailed study of McNeil's nebula (V1647 Ori) in its ongoing outburst phase starting from 2008 September to 2013 March. Our 124 nights of photometric observations were carried out in optical V, R, I, and ...
  • Reappraisal of cis effect in 1,2-dihaloethenes: An improved virtual orbital multireference approach 
    Chaudhuri, R. K; Hammond, J. R; Freed, K. F; Chattopadhyay, S; Mahapatra, U. S (American Institute of Physics, 2008-08)
    Computed relative stabilities for isomers of 1,2-difluoroethene and 1,2-dichloroethene isomers are compared with predictions based on chemical hardness (η) and electrophilicity (ш) using the principles of maximum hardness ...
  • Reappraisal of Nuclear Quadrupole Moments of Atomic Halogens via Relativistic Coupled Cluster Linear Response Theory for the Ionization Process 
    Chaudhuri, R. K; Chattopadhyay, S; Mahapatra, U. S (American Chemical Society, 2013-11-27)
    The coupled cluster based linear response theory (CCLRT) with four-component relativistic spinors is employed to compute the electric field gradients (EFG) of $^{35}$Cl, $^{79}$Br, and $^{127}$I nuclei. The EFGs resulting ...
  • Reappraisal of the Electric Dipole Moment Enhancement Factor for Thallium 
    Nataraj, H. S; Sahoo, B. K; Das, B. P; Mukherjee, D (American Physical Society, 2011-05-20)
    The electric dipole moment (EDM) enhancement factor of atomic Tl is of considerable interest as it has been used in determining the most accurate limit on the electron EDM to date. However, its value varies from -179 to ...
  • Recent advances in RV Tauri stars 
    Giridhar, S (Indian Academy of Sciences, 2020-12)
    The availability of multi-wavelength observations and parallaxes from the space missions and very comprehensive models of AGB evolution that include the accretion of matter from the circumbinary disc have strongly impacted ...
  • Recent advances in spectroscopy: theoretical, astrophysical and experimental perspectives 
    Chaudhuri, R. K (editor); Mekkaden, M. V (editor); Raveendran, A. V (editor); Narayanan, A. S (editor) (Springer-Verlag, 2010)
    In recent years there have been great advances in the fields of laboratory and astronomical spectroscopy. These have been equally matched by large-scale computations using state-of-the-art theoretical methods. The accurate ...
  • Recent advances in star formation: observations and theory 
    Subramaniam, A (editor); Anathpindika, S (editor) (Astronomical Society of India, 2012)
  • Recent Developments in Polarized Line Formation in Magnetic Fields 
    Nagendra, K. N; Sampoorna, M; Anusha, L. S (Springer, 2010)
    The nature of solar surface magnetism has been an open problem in solar physics. In this paper we address three frontline problems of spectropolarimetry of the Sun. We first review the theoretical formulation and numerical ...
  • Recent mass loss episode of the Be Star omicron And 
    Ghosh, K. K; Jaykumar, K; Rosario, M. J; Appakutty, M (Konkoly Observatory, 1986-05)
  • Recent onset of an outburst in mu centauri 
    Ghosh, K. K; Velu, C; Kuppuswamy, K; Jaykumar, K; Rosario, M. J (Konkoly Observatory, 1987-08)
  • Recent outburst of U ScorpII 
    Shylaja, B. S; Prabhu, T. P (Indian Institute of Astrophysics, 1979-11)
    A photoelectric scan of Hβ and a photographic spectrum between λλ 4500-7000 obtained during the 1979 outburst of the recurrent nova U Sco have been studied. The electron density and the mass of ionized hydrogen in the nova ...
  • Recent photometry of HR 1099 (V711 Tau) 
    Mohin, S; Raveendran, A. V; Mekkaden, M. V; Jayakumar, K; Rosario, M. J (Konkoly Observatory, 1982-08)
  • Recent Results from the IMB nucleon decay experiment 
    Sivaram, C (ICRC, 1987)
  • The recent signs of total column ozone recovery over mid-latitudes: the effects of the montreal protocol mandate 
    Shantikumar, S. N; Vemareddy, P; Song, H. -J (Elsevier B.V, 2018-10)
    After successful implementation of the Montreal Protocol, total ozone column (TOC) has considerably increased since the mid 1990s. However, the recovery is weak and statistically non-significant particularly at low-latitudes ...
  • Recent star formation history of the Large and Small Magellanic Clouds 
    Indu, G; Subramaniam, A (Astronomical Society of India, 2012)
    Recent interactions between the Large and the Small Magellanic Clouds (LMC and SMC) and the Milky Way can be understood by studying their recent star formation history. We traced the age of the last star-formation event ...
  • The recent star-formation history of the Large and Small Magellanic Clouds 
    Indu, G; Subramaniam, A (EDP Sciences, 2011-11)
    Aims. Recent interactions between the Large and the Small Magellanic Clouds (LMC and SMC) and the Milky Way can be understood by studying their recent star formation history. This study aims to detect any directional or ...
  • Recent unusual solar activity 
    Salaruddin, MD; Narayan, B. G (The Observatory, 1940-01)
  • Reception of Radio Waves from Pulsars 
    Gangadhara, R. T (International Astronomical Union, 2004)
    The beamed emission by relativistic sources moving along the magnetic dipolar field lines occurs in the direction of tangents to the field lines. To receive such a beamed radiation, the line of sight must align with the ...

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