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Browsing IIAP Publications by Title

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  • Kilonova Luminosity Function Constraints Based on Zwicky Transient Facility Searches for 13 Neutron Star Merger Triggers during O3 
    Kasliwal, Mansi M; Anand, Shreya; Ahumada, Tomas; Stein, Robert; Carracedo, Ana Sagues; Andreoni, Igor; Coughlin, Michael W; Singer, Leo P; Kool, Erik C; Kishalay De; Harsh Kumar; Waratkar, Gaurav; Webb, Sara; Yu, Po-Chieh; Zhang, Bin-Bin; Zhou, Rongpu; Zolkower, Jeffry; AlMualla, Mouza; Yao, Yuhan; Bulla, Mattia; Dobie, Dougal; Reusch, Simeon; Perley, Daniel A; Cenko, S. Bradley; Bhalerao, Varun; Kaplan, David L; Sollerman, Jesper; Goobar, Ariel; Copperwheat, Christopher M; Bellm, Eric C; Anupama, G. C; Corsi, Alessandra; Nissanke, Samaya; Agudo, Ivan; Bagdasaryan, Ashot; Barway, Sudhanshu; Belicki, Justin; Bloom, Joshua S; Bolin, Bryce; Buckley, David A. H; Burdge, Kevin B; Burruss, Rick; Caballero-Garcia, Maria D; Cannella, Chris; Castro-Tirado, Alberto J; Cook, David O; Cooke, Jeff; Cunningham, Virginia; Dahiwale, Aishwarya; Deshmukh, Kunal; Dichiara, Simone; Duev, Dmitry A; Anirban Dutta; Feeney, Michael; Franckowiak, Anna; Frederick, Sara; Fremling, Christoffer; Gal-Yam, Avishay; Gatkine, Pradip; Ghosh, Shaon; Goldstein, Daniel A; Zach Golkhou, V; Graham, Matthew J; Graham, Melissa L; Hankins, Matthew J; Helou, George; Youdong Hu; Ip, Wing-Huen; Jaodand, Amruta; Karambelkar, Viraj; Kong, Albert K. H; Kowalski, Marek; Khandagale, Maitreya; Kulkarni, S. R; Brajesh Kumar; Laher, Russ R; Li, K. L; Mahaba, Ashish; Masci, Frank J; Miller, Adam A; Mogotsi, Moses; Mohite, Siddharth; Mooley, Kunal; Mroz, Przemek; Newman, Jeffrey A; Ngeow, Chow-Choong; Oates, Samantha R; Patil, Atharva Sunil; Pandey, S. B; Pavana, M; Pian, Elena; Riddle, Reed; Sanchez-Ramirez, Ruben; Sharma, Yashvi; Singh, A; Smith, Roger; Soumagnac, Maayane T; Taggart, Kirsty; Tan, Hanjie; Tzanidakis, Anastasios; Troja, Eleonora; Valeev, Azamat F; Walters, Richard (IOP Publishing, 2020-12-20)
    We present a systematic search for optical counterparts to 13 gravitational wave (GW) triggers involving at least one neutron star during LIGO/Virgo's third observing run (O3). We searched binary neutron star (BNS) and ...
  • Kiloparsec-scale radio emission in Seyfert and LINER galaxies 
    Singh, V; Ishwara-Chandra, C. H; Wadadekar, Yogesh; Beelen, Alexandre; Kharb, P (Oxford University Press on behalf of the Royal Astronomical Society, 2015-01-01)
    Seyfert and LINER galaxies are known to exhibit compact radio emission on ∼10–100 pc scales, but larger Kiloparsec-Scale Radio structures (KSRs) often remain undetected in sub-arcsec high-resolution observations. We ...
  • Kinematic studies of five galactic planetary nebulae 
    Banerjee, D. P. K; Anandarao, B. G; Jain, S. K; Mallik, D. C. V (The European Southern Observatory, 1990-12)
    High-resolution Fabry-Perot observations have been made to determine the velocity structure of five PNe and to subsequently relate the observations to the morphology of the objects. New kinematic data on one of these PNe, ...
  • Kinematical distances to open star clusters 
    Sagar, R; Bhatt, H. C (Indian Academy Sciences, 1988-06)
    Kinematical distances are estimated for six open star clusters. They agree fairly well with the photometric distances. The kinematical distances cannot, at present, be estimated better than the photometric distances. When ...
  • Kinematics and Excitation of the Nuclear Spiral in the Active Galaxy Arp 102B 
    Couto, G. S; Storchi-Bergmann, T; Axon, D. J; Robinson, A; Kharb, P; Riffel, R. A (Oxford University Press on behalf of the Royal Astronomical Society, 2013-11-11)
    We present a two-dimensional analysis of the gaseous excitation and kinematics of the inner 2.5 × 1.7 kpc2 of the low-ionization nuclear emission-line region (LINER)/Seyfert 1 galaxy Arp 102B, from optical spectra obtained ...
  • Kinematics and interplanetary characteristics of a halo Coronal Mass Ejection: a multi-wavelength analysis 
    Soni, Shirsh Lata; Ebenezer, E (Springer, 2022-04)
    In this paper, we present the evolution and speed expansion of a shock driven by a Coronal Mass Ejection (CME) that triggered a type II radio. We combine radio analysis with a broad range of observations taken by other ...
  • Kinematics of and emission from helically orbiting blobs in a relativistic magnetized jet 
    Mohan, Prashanth; Mangalam, A (IOP Publishing, 2015-07-01)
    We present a general relativistic (GR) model of jet variability in active galactic nuclei due to orbiting blobs in helical motion along a funnel or cone-shaped magnetic surface anchored to the accretion disk near the black ...
  • Kinematics of Pulsar Beams 
    Kapoor, R. C; Shukre, C. S (The American Astronomical Society, 1998-07)
    We have investigated in detail the geometry of the open magnetic field line structure of an oblique dipole rotator, with a view to attaining a better understanding of the geometry of pulsar beams in the polar cap model of ...
  • Kinematics of the young stellar objects associated with the cometary globules in the Gum Nebula 
    Choudhury, R; Bhatt, H. C (Royal Astronomical Society, 2009-03)
    An analysis of the proper motion measurements of the young stellar objects (YSOs) associated with the cometary globules (CGs) in the Gum Nebula is presented. While earlier studies based on the radial-velocity measurements ...
  • Kinematics of two dwarf galaxies in the NGC 6946 group 
    Begum, A; Chengalur, J. N (EDP Sciences, 2004)
    We present high velocity resolution (~ 1.6 km s -1) Giant Meterwave Radio Telescope (GMRT) HI 21 cm synthesis images of the dwarf galaxies KK98 250 and KK98 251, as well as optical broad band images of KK98 250. We find ...
  • Kinematics of Vega-like stars: Lifetimes and temporal evolution of circumstellar dust disks 
    Manoj, P; Bhatt, H. C (EDP Sciences, 2005-01)
    We have used the velocity dispersion as an age indicator to constrain the ages of a large sample of main sequence Vega-like stars in order to study the lifetimes and temporal evolution of the dust disks around them. We use ...
  • Kinetic Equilibria of Accretion Discs 
    Bhaskaran, P; Krishan, V (Springer, 1995-10)
    A kinetic description of the equilibrium structure of accretion disc plasma is presented. It is possible to have an equilibrium configuration for a stationary axisymmetric gravitating plasma disc with spatial gradients in ...
  • Kinetic theory of Jeans instability of a dusty plasma 
    Pandey, B. P; Lakhina, G. S; Krishan, V (The American Physical Society, 1999-12)
    A kinetic theory of the Jeans instability of a dusty plasma has been developed in the present work. The effect of grain charge fluctuations due to the attachment of electrons and ions to the grain surface has been considered ...
  • King Comet 
    Datta, B; Bhattacharyya, J. C (Nehru Centre, 1985-09)
  • Kink and Longitudinal Oscillations in the Magnetic Network on the Sun: Nonlinear Effects and Mode Transformation 
    Hasan, S. S; Kalkofen, W; van Ballegooijen, A. A; Ulmschneider, P (The American Astronomical Society, 2003-03)
    We examine the propagation of kink and longitudinal waves in the solar magnetic network. Previously, we investigated the excitation of network oscillations in vertical magnetic flux tubes through buffeting by granules and ...
  • Kink oscillations in the solar corona 
    Satya Narayanan, A; Ramesh, R; Kathiravan, C; Ebenezer, E (Astronomical Society of the Pacific, 2004-12)
    The solar coronal plasma is highly structured in the magnetic field, density and temperature. This plays a crucial role in the theory of MHD oscillations. In this study, we model a coronal loop to be made up of a cylindrical ...
  • Kiso supernova survey (KISS): survey strategy 
    Morokuma, T; Tominaga, N; Tanaka, M; Mori, K; Matsumoto, E; Kikuchi, Y; Shibata, T; Sako, S; Aoki, T; Doi, M; Kobayashi, N; Maehara, H; Matsunaga, N; Mito, H; Miyata, T; Nakada, Y; Soyano, T; Tarusawa, K; Miyazaki, S; Nakata, F; Okada, N; Sarugaku, Y; Richmond, M. W; Akitaya, H; Aldering, G; Arimatsu, K; Contreras, C; Horiuchi, T; Hsiao, E. Y; Itoh, R; Iwata, I; Kawabata, K. S; Kawai, N; Kitagawa, Y; Kokubo, M; Kuroda, D; Mazzali, P; Miswava, T; Moritani, Y; Morrell, N; Okamoto, R; Pavlyuk, N; Phillips, M. M; Pian, E; Sahu, D. K; Saito, Y; Sano, K; Stritzinger, M. D; Tachibana, Y; Taddia, F; Takaki, K; Tateuchi, K; Tomita, A; Tsvetkov, D; Ui, T; Ukita, N; Urata, Y; Walker, E; Yoshii, T (Published by Oxford University Press on behalf of the Astronomical Society of Japan, 2014-12)
    The Kiso Supernova Survey (KISS) is a high-cadence optical wide-field supernova (SN) survey. The primary goal of the survey is to catch the very early light of a SN, during the shock breakout phase. Detection of SN shock ...
  • Kodai school on solar physics : Kodaikanal, India, 10-22 December 2006 
    Hasan, S. S (editor); Banerjee, D (editor) (American Institute of Physics, 2007)
    What is this work? Nothing less than a must-read for graduate students working in the field of astrophysics, specifically on theoretical and observational problems in solar physics. The Kodaikanal School on Solar Physics ...
  • Kodaikanal digitized white-light data archive (1921-2011): Analysis of various solar cycle features 
    Mandal, Sudip; Hegde, M; Samanta, T; Hazra, G; Banerjee, D; Ravindra, B (EDP Sciences, 2017-05)
    Context. Long-term sunspot observations are key to understanding and predicting the solar activities and its effects on space weather. Consistent observations, which are crucial for long-term variations studies, are generally ...
  • Kodaikanal Observatory (1901-1950) 
    Das, A. K (The India Meteorological Department, 1951-04)

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