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  • The dark nature of GRB 051022 and its host galaxy 
    Castro-Tirado, A. J; Bremer, M; McBreen, S; Gorosabel, J; Guziy, S; Fakthullin, T. A; Sokolov, V. V; González Delgado, R. M; Bihain, G; Pandey, S. B; Jelínek, M; de Ugarte Postigo, A; Misra, K; Sagar, R; Bama, P; Kamble, A. P; Anupama, G. C; Licandro, J; Pérez-Ramírez, D; Bhattacharya, D; Aceituno, F. J; Neri, R (EDP Sciences, 2007-11)
    Aims.We present multiwavelength (X-ray/optical/near-infrared/millimetre) observations of GRB 051022 between 2.5 h and ~1.15 yr after the event. It is the most intense gamma-ray burst (~10-4 erg cm-2) detected by HETE-2, ...
  • DarpanX: A python package for modeling X-ray reflectivity of multilayer mirrors 
    Mondal, B; Vadawale, S. V; Mithun, N. P. S; Vaishnava, C. S; Tiwari, N. K; Goyal, S. K; Panini, S. S; Navalkar, V; Karmakar, C; Patel, M. R; Upadhyay, R. B (Elsevier B.V, 2021-01)
    Multilayer X-ray mirrors consist of a coating of a large number of alternate layers of high Z and low Z materials with a typical thickness of 10–100 Å , on a suitable substrate. Such coatings play an important role in ...
  • Das reflexionsvermogen schwarzer Flachen 
    Royds, T (1910)
  • Data acquisition electronics for Stellar Photo-Polarimeter 
    Srinivasulu, G (Indian Institute of Astrophysics, 2010)
    This report describes the concept of the electronics design and implementation of PMT pulse counting , rotation of Half wave plate, chopper spinning and shutter control and host computer communication.
  • A data acquisition system for the TIFR near-infrared camera 
    Ghosh, S. K; Naik, M. B (Astronomical Society of India, 1993)
    A near infrared array camera based on a SBRC 58 x 62 InSb detector (TIRCAM-1) is being developed at Tata Institue of Fundamental Research (TIFR) for astronomical imaging applications. The data acquisition system for this ...
  • Data analysis method for the search of point sources of gamma rays with the HAGAR telescope array 
    Britto, R. J; Acharya, B. S; Anupama, G. C; Bhattacharjee, P; Chitnis, V. R; Cowsik, R; Dorji, N; Duhan, S. K; Gothe, K. S; Kamath, P. U; Mahesh, P. K; Manoharan, J; Nagesh, B. K; Parmar, N. K; Prabhu, T. P; Rao, S. K; Saha, L; Saleem, F; Saxena, A. K; Sharma, S. K; Shukla, A; Singh, B. B; Srinivasan, R; Srinivasulu, G; Sudersanan, P. V; Tsewang, D; Upadhya, S. S; Vishwanath, P. R (French Society of Astronomy and Astrophysics, 2011-12)
    The High Altitude GAmma-Ray (HAGAR) experiment is the highest altitude atmospheric Cherenkov sampling array, set up at 4300 m amsl in the Himalayas (Northern India). It constitutes 7 telescopes, each one with seven 90 ...
  • Data pipeline architecture and development for VELC onboard Space Solar Mission AdityaL1 
    Singh, J; Prasad, B. R; Sumana, Chavali; Amit Kumar; Varun Kumar; Priyal, Muthu; Venkata Suresh, Narra (Elsevier Ltd., 2022-03-15)
    ADITYA L-1 is India’s first dedicated mission to study Sun and its atmosphere with Visible Emission Line Coronagraph (VELC), a major payload on ADITYA-L1. VELC has provision to make imaging and spectroscopic observations ...
  • Data Storage and Retrieval using Photorefractive Crystals (Holographic Memories) 
    Ravinder Kumar Banyal (Indian Institute of Astrophysics, Bangalore, 2005-10)
  • Data-driven Simulations of Magnetic Field Evolution in Active Region 11429: Magneto-frictional Method Using PENCIL CODE 
    Vemareddy, P; Warnecke, Jorn; Bourdin, Ph. A (IOP Publishing, 2024-02)
    Coronal magnetic fields evolve quasi-statically over long timescales and dynamically over short timescales. As of now there exist no regular measurements of coronal magnetic fields, and therefore generating the coronal ...
  • The date of the Mahabharat war 
    Ray, Jogesh Chandra (Astronomical Society of India, 1913-06)
  • Dating stone inscriptions from eclipse records 
    Shylaja, B. S (Astronomical Society of India, 1997)
    The solar and lunar eclipses have been documented as stone inscriptions in various parts of Karnataka in South India. Descriptions in Kannada are available from 9th century A.D onwards. The dates of these eclipses have ...
  • Day and night "seeing" 
    Evershed, John (The Observatory, 1917-11)
  • The day of the dark Sun 
    Kapoor, R. C (The Hawk, 1980-06-15)
  • Day-time seeing observations at Kodaikanal Tower Telescope 
    Bagare, S. P (Astronomical Society of India, 1995)
    A limb monitor was fabricated and used for the observation of seeing conditions at the Solar tower telescope of Kodaikanal observatory. We describe the instrument and report the results obtained on image stability, ...
  • Day-to-day variability of midlatitude F region in winter 
    Sastri, J. H (National Institute of Science Communication and Information Resources, CSIR, 1977-06)
    A study is made of the day-to-day variability of midlatitude F region during winter daytime conditions, using total electron content (TEC) measurements at Auckland and Invercargill and peak density measurements at Auckland ...
  • Daystar: a peep into the workings of the Sun 
    Venkatakrishan, P (World Scientific Publishing, 2018)
    This book is an attempt to demystify the activities of a celestial object such as the Sun appealing to basic physics already available to high school students. Building on simple logic, the contents begin with measurements ...
  • Daytime equatorial geomagnetic H field response to the growth phase and expansion phase onset of isolated substorms: Case studies and their implications 
    Sastri, J. H; Rao, J. V. S. V; Rao, D. R. K; Pathan, B. M (American Geophysical Union, 2001-12)
    Observations are presented from the Indian magnetometer network (dipole latitude range 1.2°S to 13.5°N) of short-lived (<1 hr) disturbances in the daytime equatorial geomagnetic H field associated with specific phases of ...
  • Daytime equatorial VHF radiowave scintillations and sporadic-E layer 
    Koparkar, P. V; Rastogi, R. G; Sastri, J. H (The Council of Scientific and Industrial Research, 1989-08)
    Daytime VHF radiowave scintillations at Trivandrum are compared with the E-region irregularities at Kodaikanal. It is shown that daytime scintillations at Trivandrum are basically of two categories. One type of scintillations ...
  • Daytime ionosphere scintillation associated with geomagnetic storms 
    Deshpande, M. R; Vats, H. O; Sethia, G; Murthy, B. S (Nature Publishing Group, 1977-08)
  • Daytime satellite radio scintillation and sporadic E near the magnetic equator 
    Rastogi, R. G; Deshpande, M. R; Murthy, B. S; Davies, K (American Geophysical Union, 1977-03)
    An investigation is conducted concerning the association between the daytime scintillations of ATS-6 signals received at Ootacamund and the ionograms at the nearby station Kodaikanal, India. The investigation shows that ...

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