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  • The first aluminum coating of the 3700 mm primary mirror of the Devasthal Optical Telescope 
    Bheemireddy, K. R; Maheswar, G; Pant, J; Omar, A; Kumar, B; Uddin, W; Nirmal, K (SPIE-The International Society for Optical Engineering, 2016-07)
    Initially the primary mirror of the 3.6m Devasthal Optical Telescope is uncoated polished zerodur glass supplied by Lytkarino Optical Glass Factory, Russia/Advanced Mechanical and Optical Systems, Belgium. In order to do ...
  • First BISTRO Observations of the Dark Cloud Taurus L1495A-B10: The Role of the Magnetic Field in the Earliest Stages of Low-mass Star Formation 
    Ward-Thompson, Derek; Karoly, Janik; Pattle, Kate; Whitworth, Anthony; Kirk, Jason; Berry, David; Bastien, Pierre; Ching, Tao-Chung; Coude, Simon; Hwang, Jihye; Kwon, Woojin; Nakamura, Fumitaka; Kirchschlager, Florian; Kobayashi, Masato I. N; Koch, Patrick M; Kusune, Takayoshi; Kwon, Jungmi; Lacaille, Kevin; Law, Chi-Yan; Lee, Chang Won; Lee, Hyeseung; Hasegawa, Tetsuo; Lee, Yong-Hee; Nakanishi, Hiroyuki; Lee, Chin-Fei; Lee, Jeong-Eun; Li, Dalei; Li, Di; Li, Guangxing; Li, Hua-bai; Lin, Sheng-Jun; Liu, Hong-Li; Tram, Le Ngoc; Liu, Tie; Liu, Sheng-Yuan; Ngoc, Nguyen Bich; Liu, Junhao; Longmore, Steven; Lu, Xing; Lyo, A-Ran; Mairs, Steve; Matsumura, Masafumi; Matthews, Brenda; Tsukamoto, Yusuke; Ohashi, Nagayoshi; Onaka, Takashi; Park, Geumsook; Parsons, Harriet; Peretto, Nicolas; Archana Soam; Priestley, Felix; Pyo, Tae-Soo; Qian, Lei; Rao, Ramprasad; Viti, Serena; Rawlings, Jonathan; Rawlings, Mark; Rette, Brendan; Richer, John; Rigby, Andrew; Sadavoy, Sarah; Wang, Jia-Wei; Saito, Hiro; Savini, Giorgio; Seta, Masumichi; Wang, Hongchi; Shimajiri, Yoshito; Shinnaga, Hiroko; Tahani, Mehrnoosh; Tamura, Motohide; Tang, Ya-Wen; Tang, Xindi; Tomisaka, Kohji; Wu, Jintai; Xie, Jinjin; Yang, Meng-Zhe; Yen, Hsi-Wei; Yoo, Hyunju; Fuller, Gary; Yuan, Jinghua; Lai, Shih-Ping; Yun, Hyeong-Sik; Zenko, Tetsuya; Zhang, Guoyin; Zhang, Yapeng; Zhang, Chuan-Peng; Zhou, Jianjun; Zhu, Lei; de Looze, Ilse; Furuya, Ray; Andre, Philippe; Dowell, C. Darren; Qiu, Keping; Eden, David; Eyres, Stewart; Falle, Sam; Le Gouellec, Valentin J. M; Poidevin, Frederick; Robitaille, Jean-François; van Loo, Sven; Gledhill, Tim; Arzoumanian, Doris; Bourke, Tyler L; Byun, Do-Young; Chen, Huei-Ru Vivien; Chen, Wen Ping; Chen, Mike; Chen, Zhiwei; Cho, Jungyeon; Choi, Minho; Choi, Youngwoo; Graves, Sarah; Choi, Yunhee; Chrysostomou, Antonio; Chung, Eun Jung; Dai, Sophia; Debattista, Victor; Di Francesco, James; Diep, Pham Ngoc; Doi, Yasuo; Duan, Hao-Yuan; Duan, Yan; Greaves, Jane; Eswaraiah, Chakali; Fanciullo, Lapo; Fiege, Jason; Fissel, Laura M; Franzmann, Erica; Friberg, Per; Friesen, Rachel; Griffin, Matt; Gu, Qilao; Han, Ilseung; Hayashi, Saeko; Hoang, Thiem; Moriarty-Schieven, Gerald; Houde, Martin; Hull, Charles L. H; Inoue, Tsuyoshi; Inutsuka, Shu-ichiro; Iwasaki, Kazunari; Jeong, Il-Gyo; Johnstone, Doug; Konyves, Vera; Kang, Ji-hyun; Kang, Miju; Nagata, Tetsuya; Kataoka, Akimasa; Kawabata, Koji; Kemper, Francisca; Kim, Jongsoo; Kim, Shinyoung; Kim, Gwanjeong; Kim, Kyoung Hee; Kim, Mi-Ryang; Kim, Kee-Tae; Kim, Hyosung (American Astronomical Society, 2023-04-01)
    We present BISTRO Survey 850 μm dust emission polarization observations of the L1495A-B10 region of the Taurus molecular cloud, taken at the James Clerk Maxwell Telescope (JCMT). We observe a roughly triangular network ...
  • First detection of a magnetic field in low-luminosity B[e] stars New scenarios for the nature and evolutionary stages of FS CMa stars 
    Korcakova, D; Sestito, F; Manset, N; Kroupa, P; Votruba, V; Slechta, M; Danford, S; Dvorakova, N; Raj, A; Chojnowski, S. D; Singh, H. P (EDP Sciences, 2022-03)
    We report the first detection of the magnetic field in a star of FS CMa type, a subgroup of objects characterized by the B[e] phenomenon. The split of magnetically sensitive lines in IRAS 17449+2320 determines the magnetic ...
  • First evidence for anomalous thick crust beneath mid-Archean western Dharwar craton 
    Gupta, S; Rai, S. S; Prakasam, K. S; Srinagesh, D; Chadha, R. K; Priestley, K; Gaur, V. K (Indian Academy of Sciences, 2003-05-10)
    We report an anomalous present day crustal thickness of 43–52 km beneath the 3.4–3.0 Ga mid-Archean segment of the western Dharwar craton (WDC) undisturbed by Proterozoic events. In contrast, adjoining late-Archean ...
  • First evidence of the possible detection of diffuse circumstellar bands in AGB descendants 
    Di­az-Luis, J. J; Garcia-Hernandez, D. A; Kameswara Rao, N; Manchado, A; Cataldo, F (Societa Astronomica Italiana, 2016-06)
    The short transition phase between asymptotic giant branch stars (AGB; when circumstellar envelopes rich in small organic molecules are efficiently created) and planetary nebulae (PNe) represents a most active phase of ...
  • The First Extensive Exploration of UV-bright Stars in the Globular Cluster NGC 2808 
    Deepthi, S. Prabhu; Subramaniam, A; Snehalata Sahu (IOP Publishing, 2021-02-10)
    In this study, we identified and characterized the hot and luminous UV-bright stars in the globular cluster NGC 2808. We combined data from the Ultra Violet Imaging Telescope (UVIT) on board the Indian space satellite AstroSat ...
  • The First Gamma-Ray Emitting BL Lacertae Object at the Cosmic Dawn 
    Paliya, V. S; Dominguez, A; Cabello, C; Cardiel, N; Gallego, J; Siana, B; Ajello, M; Hartmann, D; de Paz, A. G; Stalin, C. S (IOP Publishing, 2020-11-01)
    One of the major challenges in studying the cosmic evolution of relativistic jets is the identification of the highredshift (z > 3) BL Lacertae objects (BL Lacs), a class of jetted active galactic nuclei characterized by ...
  • The first GeV outburst of the radio-loud narrow-line Seyfert 1 galaxy PKS 1502+036 
    Paliya, Vaidehi S; Stalin, C. S (IOP Publishing, 2016-03)
    The γ-ray-loud narrow-line Seyfert 1 (γ-NLSy1) galaxy PKS 1502+036 (z = 0.409) exhibited its first γ-ray outburst on 2015 December 20. In the energy range of 0.1–300 GeV, the highest flux measured by the Fermi-Large Area ...
  • First Imaging Observation of Standing Slow Wave in Coronal Fan Loops 
    Pant, V; Tiwari, A; Yuan, D; Banerjee, D (IOP Publishing, 2017-09)
    We observe intensity oscillations along coronal fan loops associated with the active region AR 11428. The intensity oscillations were triggered by blast waves that were generated due to X-class flares in the distant ...
  • First light observations with TIFR near-infrared camera 
    Ojha, D. K; Ghosh, S. K; Verma, R. P; Chakraborti, A; Anandarao, B. G (Astronomical Society of India, 2002-09)
    The TIFR near-infrared camera (TmCAM) is based on the SBRC InSb focal plane array (58x62 pixels) sensitive between 1-5 pm. TIRCAM had its first engineering run at Gurusikhar 1.2 meter PRL telescope at Mount Abu during ...
  • First local helioseismic experiments with CO5 
    Steiner, O; Vigeesh, G; Krieger, L; Wedemeyer-Böhm, S; Schaffenberger, W; Freytag, B (WILEY-VCH Verlag GmbH & Co., 2007-03)
    With numerical experiments we explore the feasibility of using high frequency waves for probing the magnetic fields in the photosphere and the chromosphere of the Sun.We track a plane-parallel, monochromatic wave that ...
  • The First Low-frequency Radio Observations of the Solar Corona on ≈200 km Long Interferometer Baseline 
    Mugundhan, V; Ramesh, R; Kathiravan, C; Gireesh, G. V. S; Anshu Kumari; Hariharan, K; Barve, Indrajit V (IOP Publishing, 2018-03-01)
    The angular size of the smallest, compact radio source that can be observed in the solar atmosphere is one of the intriguing questions in low-frequency radio astronomy. This is important to understand density turbulence ...
  • First Results from Light Scattering Enhancement Factor over Central Indian Himalayas during GVAX Campaign 
    Dumka, U. C; Kaskaoutis, D. G; Sagar, R; Chen, J; Singh, N; Tiwari, S (Elsevier B.V, 2017-02)
    The present work examines the influence of relative humidity (RH), physical and optical aerosol properties on the light-scattering enhancement factor [f(RH=85%)] over central Indian Himalayas during the Ganges Valley ...
  • First results from the Gauribidanur Radio heliograph 
    Subramanian, K. R; Ramesh, R; Sundararajan, M. S; Sastry, Ch. V (Kluwer Academic Publishers, 1996-03)
    Observations of the Sun at two frequencies (51 and 77 MHz) using the East-West arm of the Gauribidanur Radio heliograph are presented.
  • First results from the Indian x-ray astronomy satellite 
    Paul, B (Astronomical Society of India, 1999)
  • First Results from the NOAO Survey of the Outer Limits of the Magellanic Clouds 
    Saha, A; Olszewski, E. W; Brondel, B; Olsen, K; Knezek, P; Harris, J; Smith, C; Subramaniam, A; Claver, J; Rest, A; Seitzer, P; Cook, K. H; Minniti, D; Suntzeff, N. B (IOP Publishing, 2010-12)
    We describe the first results from the Outer Limits Survey, an NOAO survey designed to detect, map, and characterize the extended structure of the Large and Small Magellanic Clouds (LMC and SMC). The survey consists of ...
  • The first spark spectrum of arsenic (As II) 
    Rao, A. S (Institute of Physics, 1932-05)
    The spectrum of arsenic has been examined under varying conditions of excitation, and lines belonging to the singly-ionized atom have been identified. Combinations between the deep terms of the singlet and triplet system ...
  • First stars. XIII. Two extremely metal-poor RR Lyrae stars 
    Hansen, C. J; Nordström, B; Bonifacio, P; Spite, M; Andersen, J; Beers, T. C; Cayrel, R; Spite, F; Molaro, P; Barbuy, B; Depagne, E; François, P; Hill, V; Plez, B; Sivarani, T (EDP Sciences, 2011-03)
    Context. The chemical composition of extremely metal-poor stars (EMP stars; [Fe/H] < ~ −3) is a unique tracer of early nucleosynthesis in the Galaxy. As such stars are rare, we wish to find classes of luminous stars ...
  • First Steps with CO5BOLD Using HLLMHD and PP Reconstruction. 
    Steiner, O; Rajaguru, S. P; Vigeesh, G; Steffen, M; Schaffenberger, W; Freytag, B (Societa Astronomica Italiana, 2013)
    We report on first experiences with real-life applications using the MHD-module of CO5BOLD together with the piecewise parabolic reconstruction scheme and present preliminary results of stellar magnetic models with Teff = ...
  • First sub-parsec-scale mapping of magnetic fields in the vicinity of a very-low-luminosity object, L1521F-IRS 
    Archana Soam; Lee, C. W; Andersson, B.G; Maheswar, G; Juvela, Mika; Liu, Tie; Kim, Gwanjeong; Ramprasad Rao; Chung, E.J; Kwon, Woojin; Ekta, S S (IOP Publishing, 2019-09-20)
    L1521F is found to be forming multiple cores and it is cited as an example of the densest core with an embedded VeLLO in a highly dynamical environment. We present the core-scale magnetic fields (B-fields) in the near ...

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