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Browsing IIAP Publications by Title

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  • Outgassing Behavior of C/2012 S1 (ISON) from 2011 September to 2013 June 
    Meech, K. J; Yang, B; Kleyna, J; Ansdell, M; Chiang, H. F; Hainaut, O; Vincent, J. B; Boehnhardt, H; Fitzsimmons, A; Rector, T; Riesen, T; Keane, J. V; Reipurth, B; Hsieh, H. H; Michaud, P; Milani, G; Bryssinck, E; Ligustri, R; Trabatti, R; Tozzi, G. P; Mottola, S; Kuehrt, E; Bhatt, B. C; Sahu, D. K; Lisse, C; Denneau, L; Jedicke, R; Magnier, E; Wainscoat, R (IOP Publishing, 2013-10-20)
    We report photometric observations for comet C/2012 S1 (ISON) obtained during the time period immediately after discovery (r = 6.28 AU) until it moved into solar conjunction in mid-2013 June using the UH2.2 m, and Gemini ...
  • Outlying Hα emitters in SDSS IV MaNGA 
    Bait, O; Wadadekar, Y; Barway, Sudhanshu (Oxford University Press on behalf of the Royal Astronomical Society, 2019-05)
    We have carried out a systematic search for outlying Hα emitters in the entire Data Release 14 of the Sloan Digital Sky Survey (SDSS) IV Mapping Nearby Galaxies at APO (MaNGA) survey. We have discovered six outlying Hα ...
  • An overview of and issues with sky radiometer technology and SKYNET 
    Nakajima, T; Campanelli, M; Che, Huizheng; Estelles, V; Irie, Hitoshi; Kim, Sang-Woo; Kim, Jhoon; Liu, Dong; Nishizawa, T; Pandithurai, Govindan; Soni, Vijay Kumar; Thana, Boossarasiri; Tugjsurn, Nas-Urt; Aoki, Kazuma; Sujung Go; Hashimoto, Makiko; Higurashi, Akiko; Kazadzis, Stelios; Khatri, Pradeep; Kouremeti, Natalia; Kudo, Rei; Marenco, Franco; Momoi, Masahiro; Shantikumar, N. S; Ryder, Claire L; Uchiyama, Akihiro; Yamazaki, Akihiro (European Geosciences Union, 2020-08)
    This paper is an overview of the progress in sky radiometer technology and the development of the network called SKYNET. It is found that the technology has produced useful on-site calibration methods, retrieval algorithms, ...
  • An overview of science results obtained from Kodaikanal digitized white-light data archive: 1921-2011 
    Mandal, Sudip; Banerjee, D (Cambridge University Press, 2018-02)
    In this proceeding, we present a summary of the recent scientific results that have been derived using the newly digitized whit-light (WL) data obtained from the Kodaikanal Solar Observatory.
  • An overview of some experimental and theoretical aspects of fundamental symmetry violations in atoms 
    Budker, D; Sahoo, B. K; Angom, D; Das, B. P (Indian Academy of Sciences, 2010-12)
    We present some of the advances in our experimental and theoretical studies of violations in fundamental symmetries in atoms. A part of this work was performed under the auspices of a NSF{DST project. During this period, ...
  • Overview of the DESI legacy imaging surveys 
    Arjun Dey; Schlegel, David J; Lang, Dustin; Blum, Robert; Kaylan Burleigh; Fan, Xiaohui; Findlay, Joseph R; Finkbeiner, Doug; Herrera, David; Juneau, Stephanie; Landriau, Martin; Levi, Michael; McGreer, Ian; Meisner, Aaron; Myers, Adam D; Moustakas, John; Nugent, Peter; Patej, Anna; Schlafly, Edward F; Walker, Alistair R; Valdes, Francisco; Weaver, Benjamin A; Yeche, Christophe; Zou, Hu; Zhou, Xu; Abaresh, Behzad; Abbott, T. M. C; Abolfathi, Bela; Aguilera, C; Alam, Shadab; Allen, Lori; Alvarez, A; Annis, James; Ansarinejad, Behzad; Aubert, Marie; Beechert, Jacqueline; Bell, Eric F; BenZvi, Segev Y; Beutler, Florian; Bielby, Richard M; Bolton, Adam S; Briceno, Cesar; Buckley-Geer, Elizabeth J; Butler, Karen; Calamida, Annalisa; Carlberg, Raymond G; Carter, Paul; Casas, Ricard; Castander, Francisco J; Choi, Yumi; Comparat, Johan; Cukanovaite, Elena; Delubac, Timothee; DeVries, Kaitlin; Dey, Sharmila; Dhungana, Govinda; Dickinson, Mark; Ding, Zhejie; Donaldson, John B; Duan, Yutong; Duckworth, Christopher J; Eftekharzadeh, Sarah; Eisenstein, Daniel J; Etourneau, Thomas; Fagrelius, Parker A; Farihi, Jay; Fitzpatrick, Mike; Font-Ribera, Andreu; Fulmer, Leah; Gansicke, Boris T; Gaztanaga, Enrique; George, K; and 89 co-authors (IOP Publishing, 2019-05)
    The DESI Legacy Imaging Surveys (http://legacysurvey.org/) are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing–Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will ...
  • An overview of the proposed Indian spectroscopic and imaging space telescope 
    Subramaniam, A (Indian Academy of Sciences, 2022-12)
    India reached a major milestone in the area of space astronomy with the successful launch and postlaunch operations of its first space observatory, AstroSat. The success of this space observatory and the lessons learned ...
  • Overview of the Sun 
    Hasan, S. S (World Scientific, 2008)
  • Oxygen abundances of carbon-enhanced stellar population in the halo 
    Susmitha, A; Sivarani, T; Ojha, D. K; Ninan, Joe P; Bandyopadhyay, A; Surya, A; Athira, U (Springer, 2020-12)
    The large fraction of carbon-enhanced metal-poor (CEMP) stars at lower metallicities makes them an interesting class of objects to be probed further in greater detail. They show different abundance patterns of neutron-capture ...
  • Oxygen in the Sun's chromosphere 
    Royds, T (Government Observatory, Madras, 1935-08-29)
  • Oxygen isotopic ratios in cool R coronae borealis stars 
    Garcia-Hernandez, D. A; Lambert, D. L; Kameswara Rao, N; Hinkle, K. H; Eriksson, K (Institute of Physics, 2010-05)
    We investigate the relationship between R Coronae Borealis (RCB) stars and hydrogen-deficient carbon (HdC) stars by measuring precise 16O/18O ratios for five cool RCB stars. The 16O/18O ratios are derived by spectrum ...
  • P Cygni type profiles 
    Peraiah, A; Srinivasa Rao, M (Indian Institute of Astrophysics, Bangalore, 1985-11)
    We have presented a series of P Cygni type profiles of special lines computed by employing different velocity laws of expansion in a spherically atmosphere. A comparison has been made with those of Beals classification. ...
  • p-capture reaction cycles in rotating massive stars and their impact on elemental abundances in globular cluster stars: A case study of O, Na and Al 
    Mahanta, Upakul; Goswami, A; Duorah, H. L; Duorah, K (IOP Publishing, 2017-08)
    Elemental abundance patterns of globular cluster stars can provide important clues for understanding cluster formation and early chemical evolution. The origin of the abundance patterns, however, still remains poorly ...
  • p-mode interaction with sunspots 
    Cally, P. S; Moradi, H; Rajaguru, S. P (John-Wiley and Sons, 2016)
    This chapter brings together two of the prominent features of our star the Sun: its well‐developed p‐mode spectrum of global oscillations excited by near‐surface convection, and its magnetic activity famously represented ...
  • PACT results on very high energy g-ray emission from CRAB pulsar 
    Sripathi Acharya, B; Vishwanath, P. R; Bhat, P. N; Chitnis, V. R; Majumdar, P; Rahman, M. A; Singh, B. B (International Union of Pure and Applied Physics, 2003-07)
    The data taken on the Crab pulsar by the recently commissioned array of ˇ Cerenkov telescopes at Pachmarhi using the wave front sampling technique have been analyzed. The phasograms show significant excess of events at the ...
  • PAH features within few hundred parsecs of active galactic nuclei 
    Jensen, J. J; Honig, S. F; Rakshit, S; Alonso-Herrero, A; Asmus, D; Gandhi, P; Kishimoto, M; Smette, A; Tristram, K. R. W (Oxford University Press on behalf of the Royal Astronomical Society, 2017-08)
    Spectral features from polycyclic aromatic hydrocarbon (PAH) molecules observed in the mid-infrared (mid-IR) range are typically used to infer the amount of recent and ongoing star formation on kiloparsec scales around ...
  • Panchromatic observations of the textbook grb 110205a: constraining physical mechanisms of prompt emission and afterglow 
    Zheng, W; Shen, R. F; Sakamoto, T; Beardmore, A. P; De Pasquale, M; Wu, X. F; Gorosabel, J; Urata, Y; Sugita, S; Zhang, B; Pozanenko, A; Nissinen, M; Sahu, D. K; Im, M; Ukwatta, T. N; Andreev, M; Klunko, E; Volnova, A; Akerlof, C. W; Anto, P; Barthelmy, S. D; Breeveld, A; Carsenty, U; Castillo-Carrion, S; Castro-Tirado, A. J; Chester, M. M; Chuang, C. J; Cunniffe, R; De Ugarte Postigo, A; Duffard, R; Flewelling, H; Gehrels, N; Guver, T; Guziy, S; Hentunen, V. P; Huang, K. Y; Jelinek, M; Koch, T. S; Kubanek, P; Kuin, P; McKay, T. A; Mottola, S; Oates, S. R; O'Brien, P; Ohno, M; Page, M. J; Pandey, S. B; Perez del Pulgar, C; Rujopakarn, W; Rykoff, E; Salmi, T; Sanchez-Ramirez, R; Schaefer, B. E; Sergeev, A; Sonbas, E; Sota, A; Tello, J. C; Yamaoka, K; Yost, S. A; Yuan, F (IOP Publishing, 2012-06-01)
    We present a comprehensive analysis of a bright, long-duration (T /sub90/ ~ 257 s) GRB 110205A at redshift z = 2.22. The optical prompt emission was detected by Swift/UVOT, ROTSE-IIIb, and BOOTES telescopes when the gamma-ray ...
  • Parameterization of water vapor using high-resolution GPS data and empirical models 
    Shantikumar, S. N; Sridevi, J; Shrungeshwara, T. S (Elsevier B.V, 2018-03)
    The present work evaluates eleven existing empirical models to estimate Precipitable Water Vapor (PWV) over a high-altitude (4500 m amsl), cold-desert environment. These models are tested extensively and used globally to ...
  • Parametric decay instability in 3C 273 
    Gangadhara, R. T; Krishan, V (Cambridge University Press, 1991)
    The parametric decay instability (PDI) causes anomalous absorption of strong electromagnetic (e.m) radiation under specific conditions of energy and momentum conservation. It is shown that in the source 3C 273, the conditions ...
  • Parametric models of the periodogram 
    Mohan, Prashanth; Mangalam, A; Chattopadhyay, S (Indian Academy of Sciences, 2014-04)
    The maximum likelihood estimator is used to determine fit parameters for various parametric models of the Fourier periodogram followed by the selection of the best fit model amongst competing models using the Akaike ...

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