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Browsing IIAP Publications by Title

Browsing IIAP Publications by Title

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  • Van Doorsselaere, T; Krishna Prasad, S; Pant, V; Banerjee, D; Hood, A (EDP Sciences, 2024-03)
    Context. Slow waves in solar coronal loops are strongly damped, but the current theory of damping by thermal conduction cannot explain some observational features. Aims. We investigated the propagation of slow waves in a ...
  • Bhattacharjee, P; Majumdar, P; Mousumi Das; Das, Subinoy; Joarder, P. S; Biswas, Sayan (Oxford University Press on behalf of the Royal Astronomical Society, 2021-03)
    Low surface brightness (LSB) galaxies have very diffuse, low surface density stellar discs that appear faint in optical images. They are very rich in neutral hydrogen (H I) gas, which extends well beyond the stellar discs. ...
  • Gomboc, A; Kobayashi, S; Guidorzi, C; Melandri, A; Mangano, V; Sbarufatti, B; Mundell, C. G; Schady, P; Smith, R. J; Updike, A. C; Kann, D. A; Misra, K; Rol, E; Pozanenko, A; Castro-Tirado, A. J; Anupama, G. C; Bersier, D; Bode, M. F; Carter, D; Curran, P; Fruchter, A; Graham, J; Hartmann, D. H; Ibrahimov, M; Levan, A; Monfardini, A; Mottram, C. J; O'Brien, P. T; Prema, P; Sahu, D. K; Steele, I. A; Tanvir, N. R; Wiersema, K (The American Astronomical Society, 2008-11)
    We present a detailed study of the prompt and afterglow emission from Swift GRB 061126 using BAT, XRT, UVOT data and multicolor optical imaging from 10 ground-based telescopes. GRB 061126 was a long burst (T90=191 s) with ...
  • Jose, J; Pandey, A. K; Ogura, K; Ojha, D. K; Bhatt, B. C; Samal, M. R; Chauhan, N; Sahu, D. K; Rawat, P. S (Wiley-Blackwell, 2011-03)
    We present a comprehensive multiwavelength analysis of the young cluster NGC 1624 associated with the H ii region Sh2-212 using optical UBVRI photometry, optical spectroscopy and GMRT radio continuum mapping along with the ...
  • Gupta, A. C; Krichbaum, T. P; Wiita, P. J; Rani, B; Sokolovsky, K. V; Mohan, Prashanth; Mangalam, A; Marchili, N; Fuhrmann, L; Agudo, I; Bach, U; Bachev, R; Böttcher, M; Gabanyi, K. E; Gaur, H; Hawkins, K; Kimeridze, G. N; Kurtanidze, O. M; Kurtanidze, S. O; Lee, C.-U; Liu, X; McBreen, B; Nesci, R; Nestoras, G; Nikolashvili, M. G; Ohlert, J. M; Palma, N; Peneva, S; Pursimo, T; Semkov, E; Strigachev, A; Webb, J. R; Wiesemeyer, H; Zensus, J. A (Wiley-Blackwell, 2012-09)
    We report results from a one-week multiwavelength campaign to monitor the BL Lacertae object (BL Lac) S5 0716+714 (on 2009 December 9–16). Nine ground-based telescopes at widely separated longitudes and one space-based ...
  • Gulati, Sanna; Bhattacharya, Debbijoy; Bhattacharyya, Subir; Bhatt, N; Stalin, C. S; Agrawal, V. K (Oxford University Press on behalf of the Royal Astronomical Society, 2021-05)
    We carried out a detailed study of the temporal and broad-band spectral behaviour of one of the brightest misaligned active galaxies in γ-rays, NGC 1275, utilizing 11 years of Fermi data and the available Swift and AstroSat ...
  • Kundu, M. R; Shevgaonkar, R. K (The University of Chicago Press, 1985-04)
    A preflare active region was studied using the Very Large Array at 2, 6, and 20 cm. At 2 cm the region is composed of two components located in regions of opposite polarity. Both components are preheated prior to the ...
  • Basu, Judhajeet; Pavana, M; Anupama, G. C; Barway, Sudhanshu; Singh, Kulinder Pal; Swain, Vishwajeet; Srivastav, Shubham; Kumar, Harsh; Bhalerao, Varun; Sonith, L. S; Selvakumar, G (American Astronomical Society, 2024-05-01)
    We report the optical, UV, and soft X-ray observations of the 2017–2022 eruptions of the recurrent nova M31N 2008-12a. We find a cusp feature in the r¢- and i¢-band light curves close to the peak, which could be related ...
  • Bharathan, Athira M; Stalin, C. S; Sahayanathan, S; Bhattacharyya, Subir; Mathew, Blesson (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)
    The BL Lac object PKS 0735+178 was in its historic γ-ray brightness state during 2021 December. This period also coincides with the detection of a neutrino event IC 211208A, which was localized close to the vicinity of PKS ...
  • Bhattacharya, D; Krishna Mohana, A; Bhattacharyya, S; Bhatt, N; Stalin, C. S (Oxford University Press on behalf of the Royal Astronomical Society, 2021-01)
    Blazars, a class of active galactic nuclei, emit over the entire accessible electromagnetic spectrum and modelling of their broad-band spectral energy distribution (SED) is the key to constrain the underlying emission ...
  • Samal, M. R; Pandey, A. K; Ojha, D. K; Ghosh, S. K; Kulkarni, V. K; Bhatt, B. C (University of Chicago Press, 2007-12)
    We present the observational results of Galactic H ii region Sh 2-294, using optical photometry, narrowband imaging, and radio continuum mapping at 1280 MHz, together with archival data from the 2MASS, MSX, and IRAS surveys. ...
  • Garcia-Lario, P; Parthasarathy, M; de Martino, D; Sanz Fernandez de Cordoba, L; Monier, R; Manchado, A; Pottasch, S. R (European Southern Observatory, 1997-10)
    We present the results from a multiwavelength analysis of LS II+34 26, recently identified as a low mass post-AGB star and not a massive population I B-type star, as previously thought. We confirm that the central star is ...
  • Gulati, Sanna; Bhattacharya, Debbijoy; Ramadevi, M. C; Stalin, C. S; Sreekumar, P (Oxford University Press on behalf of Royal Astronomical Society, 2023-05)
    A comprehensive study of the nucleus and western hotspot of Pictor A is carried out using AstroSat observations, 13 yr of Fermi, and archival Swift observations along with other published data. We report the first detection ...
  • Samal, M. R; Pandey, A. K; Ojha, D. K; Ghosh, S. K; Kulkarni, V. K; Kusakabe, N; Tamura, M; Bhatt, B. C; Thompson, M. A; Sagar, R (The American Astronomical Society, 2010-05)
    We present multiwavelength investigation of morphology, physical-environment, stellar contents, and star formation activity in the vicinity of star-forming region Sh 2-100. It is found that the Sh 2-100 region contains ...
  • Rubinur, K; Kharb, P; Das, M; Rahna, P. T; Honey, M; Paswan, A; Vaddi, S; Murthy, J (Oxford University Press on behalf of the Royal Astronomical Society, 2021-01)
    We present radio observations of the galaxy merger remnant Mrk 212 with the Karl G. Jansky Very Large Array (VLA) and the upgraded Giant Meter Radio Telescope (uGMRT). Mrk 212 has two previously known radio sources associated ...
  • Buckley, D. A. H; Britto, R. J; Chandra, S; Krushinsky, V; Bottcher, M; Razzaque, S; Lipunov, V; Stalin, C. S; Gorbovskoy, E; Tiurina, N; Vlasenko, D; Kniazev, A (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    We present multiwavelength observations and a model for flat-spectrum radio quasar (FSRQ) NVSS J141922−083830, originally classified as a blazar candidate of unknown type (BCU II object) in the Third Fermi-LAT AGN Catalog. ...
  • Acciari, V A; Ansoldi, S; Antonelli, L A; Engels, A Arbet; Artero, M; Asano, K; Baack, D; Babic, A; Baquero, A; Almeida, U Barres de; Barrio, J A; Sahakyan, N; Saito, T; Sakurai, S; Satalecka, K; Saturni, F G; Bernardos, M; Schleicher, B; Schmidt, K; Schweizer, T; Will, M; Green, D; Sitarek, J; Šnidarić, I; Sobczynska, D; Spolon, A; Stamerra, A; Strom, D; Strzys, M; Berti, A; Suda, Y; Surić, T; Hadasch, D; Bhattacharyya, W; Takahashi, M; Tavecchio, F; Temnikov, P; Terzić, T; Teshima, M; Tosti, L; Truzzi, S; Tutone, A; Besenrieder, J; Hahn, A; Ubach, S; López-Oramas, A; Wunderlich, C; Zarić, D; de Palma, F; D’Ammando, F; Barnacka, A; Sahu, D K; Hodges, M; Hovatta, T; Heckmann, L; Kiehlmann, S; Max-Moerbeck, W; Loporchio, S; Bigongiari, C; Readhead, A C S; Reeves, R; Pearson, T J; Lähteenmäki, A; Björklund, I; Tornikoski, M; Herrera, J; Tammi, J; Suutarinen, S; Hada, K; Fraga, B Machado de Oliveira; Niinuma, K; Biland, A; Blanch, O; Bonnoli, G; Bosnjak, Z; Busetto, G; Hoang, J; Carosi, R; Ceribella, G; Cerruti, M; Chai, Y; Maggio, C; Chilingarian, A; Cikota, S; Colak, S M; Colombo, E; Contreras, J L; Hrupec, D; Cortina, J; Covino, S; D’Amico, G; D’Elia, V; Da Vela, P; Majumdar, P; Dazzi, F; De Angelis, A; De Lotto, B; Delfino, M; Hütten, M; Delgado, J; Mendez, C Delgado; Depaoli, D; Pierro, F Di; Venere, L Di; Espiñeira, E Do Souto; Makariev, M; Prester, D Dominis; Donini, A; Dorner, D; Inada, T; Doro, M; Elsaesser, D; Ramazani, V Fallah; Fattorini, A; Ferrara, G; Fonseca, M V; Font, L; Mallamaci, M; Fruck, C; Fukami, S; Manganaro, M; López, R J García; Garczarczyk, M; Gasparyan, S; Gaug, M; Giglietto, N; Giordano, F; Gliwny, P; Godinović, N; Maneva, G; Green, J G; Scherpenberg, J van; Inoue, S; Ishio, K; Iwamura, Y; Jiménez, I; Jormanainen, J; Jouvin, L; Kajiwara, Y; Karjalainen, M; Kerszberg, D; Kobayashi, Y; Vanzo, G; Mannheim, K; Kubo, H; Kushida, J; Lamastra, A; Lelas, D; Leone, F; Lindfors, E; Lombardi, S; Longo, F; López-Coto, R; Vazquez Acosta, M; López-Moya, M; Batkovic, I; Maraschi, L; Mariotti, M; Martínez, M; Mazin, D; Menchiari, S; Mender, S; Mićanović, S; Miceli, D; Ventura, S; Miener, T; Minev, M; Gonzalez, J Becerra; Miranda, J M; Mirzoyan, R; Molina, E; Moralejo, A; Morcuende, D; Moreno, V; Moretti, E; Verguilo, V; Neustroev, V; Nigro, C; Nilsson, K; Bednarek, W; Nishijima, K; Noda, K; Nozaki, S; Ohtani, Y; Oka, T; Otero-Santos, J; Vigorito, C F; Paiano, S; Palatiello, M; Paneque, D; Paoletti, R; Bellizzi, L; Paredes, J M; Pavletić, L; Peñil, P; Perennes, C; Persic, M; Vitale, V; Moroni, P G Prada; Prandini, E; Priyadarshi, C; Puljak, I; Rhode, W; Bernardini, E; Ribó, M; Rico, J; Righi, C; Rugliancich, A; Vovk, I; Saha, L (Oxford University Press on behalf of Royal Astronomical Society, 2022-02)
    We report multiwavelength observations of the gravitationally lensed blazar QSO B0218+357 in 2016–2020. Optical, X-ray, and GeV flares were detected. The contemporaneous MAGIC observations do not show significant very high ...
  • Tej, A; Ojha, D. K; Ghosh, S. K; Kulkarni, V. K; Verma, R. P; Vig, S; Prabhu, T. P (EDP Sciences, 2006-06)
    Aims.We present a multiwavelength study of the massive star-forming region associated with IRAS 06055+2039. Methods.Narrow-band near-infrared (NIR) observations were carried out with UKIRT-UFTI in molecular hydrogen and ...
  • Sharma, S; Pandey, A. K; Pandey, J. C; Chauhan, N; Ogura, K; Ojha, D. K; Borrissova, J; Mito, H; Verdugo, T; Bhatt, B. C (Astronomical Society of Japan, 2012-10)
    We present a multiwavelength study of the NGC 281 complex which contains the young cluster IC 1590 at the center, using deep wide-field optical UBV Ic photometry, slitless spectroscopy along with archival data sets in ...
  • Anupama, G. C; Kantharia, N. G (EDP Sciences, 2005-09)
    We present new observations of the nebular remnant of the old nova GK Persei 1901 in the optical using the Himalayan Chandra Telescope (HCT) and at low radio frequencies using the Giant Metrewave Radio Telescope (GMRT). ...

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