IIAP Publications: Recent submissions

  • Detection of minute-timescale γ-ray variability in BL Lacertae by Fermi-LAT 
    Pandey, Ashwani; Stalin, C. S (EDP Sciences, 2022-12)
    BL Lacertae, the prototype of the BL Lacertae (BL Lac) category of blazars, underwent a giant γ-ray flare in April 2021. The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (hereafter Fermi-LAT) ...
  • Intra-night optical variability monitoring of c-ray emitting blazars 
    Pandian, K Subbu Ulaganatha; Natarajan, A; Stalin, C. S; Pandey, Ashwani; Muneer, S; Natarajan, B (Indian Academy of Sciences, 2022-12)
    We present the results obtained from our campaign to characterize the intra-night optical variability properties of blazars detected by the Fermi large area telescope. This involves R-band monitoring observations of a ...
  • The Role of Filamentary Structures in the Formation of Two Dense Cores, L1544 and L694-2 
    Kim, Shinyoung; Lee, Chang Won; Tafalla, Mario; Maheswar, G; Caselli, Paola; Myers, Philip C; Chung, Eun Jung; Li, Shanghuo (American Astronomical Society, 2022-12-01)
    We present mapping results of two prestellar cores, L1544 and L694-2, embedded in filamentary clouds in C18O (3–2), 13CO (3–2), 12CO (3–2), HCO+ (4–3), and H13CO+ (4–3) lines with the James Clerk Maxwell Telescope to examine ...
  • A polarization study of three blazars using uGMRT at ∼600 MHz 
    Baghel, J; Silpa, S; Kharb, P; Sebastian, B; Shastri, P (Indian Academy of Sciences, 2022-12)
    We present results from our radio polarimetric study with the upgraded giant metrewave radio telescope (uGMRT) at band 4 (550–850 MHz) of three blazars: radio-loud quasars 3C390.3, 4C71.07 and BL Lac object 1ES 2344+514. ...
  • A global look into the world of interacting supernovae 
    Gangopadhyay, Anjasha; Misra, Kuntal; Kawabata, Koji; Dastidar, Raya; Singh, Mridweeka (Indian Academy of Sciences, 2022-12)
    Interacting supernovae (SNe) IIn and Ibn show narrow emission lines and have always been a mysterious and unsolved genre in SNe physics. We present a comprehensive analysis of the temporal and spectroscopic behavior of ...
  • An automated pipeline for Ultra-Violet Imaging Telescope 
    Ghosh, S. K; Tandon, S. N; Singh, S. K; Shelat, D. S; Tahlani, P; Singh, A. K; Srinivasan, T. P; Joseph, P; Devaraj, A; George, K; Mohan, R; Postma, J; Stalin, C. S (Indian Academy of Sciences, 2022-12)
    We describe a versatile pipeline for processing the data collected by the Ultra-Violet Imaging Telescope (UVIT) on board Indian multi-wavelength astronomical satellite ASTROSAT. The UVIT instrument carries out simultaneous ...
  • Gaia DR2 and EDR3 data and evolutionary status of post-AGB stars with high radial velocities 
    Aoki, Wako; Matsuno, Tadafumi; Parthasarathy, M (Oxford University Press on behalf of the Astronomical Society of Japan, 2022-12)
    Using the Gaia Data Release 2 (DR2) and Early Data Release 3 (EDR3) data and list of post-AGB candidates, we investigate the parallax, proper motion, and binarity for 20 post-AGB stars and candidates that have high radial ...
  • A multiwavelength study of the flat-spectrum radio quasar NVSS J141922−083830 covering four flaring episodes 
    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. ...
  • SWIFT J0503.7-2819: a nearly synchronous intermediate polar below the period gap? 
    Rawat, Nikita; Pandey, J. C; Joshi, Arti; Scaringi, Simone; Yadava, Umesh (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    Based on the X-ray observations from XMM–Newton and Swift, and optical observations from Transiting Exoplanet Survey Satellite (TESS) and AAVSO, we present temporal and spectral properties of probable intermediate polar ...
  • A Comprehensive Study of Five Intermediate-age Pismis (2, 3, 7, 12, 15) Clusters Using Photometric and Astrometric Data from Gaia EDR3 
    Bisht, D; Zhu, Qingfeng; Elsanhoury, W. H; Yadav, R. K. S; Rangwal, Geeta; Sariya, Devesh P; Durgapal, Alok; Jiang, Ing-Guey (American Astronomical Society, 2022-11-01)
    Open clusters are groups of stars that form simultaneously; hence, these are excellent probes to test theories of star formation, stellar evolution, and dynamics in the Milky Way disk. We carry out a detailed photometric ...
  • Evolution of the Hub-filament Structures in IC 5146 in the Context of the Energy Balance of Gravity, Turbulence, and Magnetic Field 
    Chung, Eun Jung; Lee, Chang Won; Kwon, Woojin; Yoo, Hyunju; Archana Soam; Cho, Jungyeon (American Astronomical Society, 2022-11-01)
    We present the results of 850 μm polarization and C18O (3 − 2) line observations toward the western hub-filament structure (W-HFS) of the dark Streamer in IC 5146 using the James Clerk Maxwell Telescope SCUBA-2/POL-2 and ...
  • Globular Cluster UVIT Legacy Survey (GlobULeS). III. Omega Centauri in Far-ultraviolet 
    Deepthi, S. Prabhu; Subramaniam, A; Sahu, Snehalata; Chung, Chul; Leigh, Nathan W. C; Dalessandro, Emanuele; Chatterjee, Sourav; Kameswara Rao, N; Shara, Michael; Cote, Patrick; Choudhury, Samyaday; Pandey, G; Valcarce, Aldo A. R; Singh, G; Postma, Joesph E; Sharmila Rani; Bandyopadhyay, Avrajit; Geller, Aaron M; Hutchings, John; Puzia, Thomas; Simunovic, Mirko; Sohn, Young-Jong; Sivarani, T; Yadav, Ramakant Singh (American Astronomical Society, 2022-11-10)
    We present the first comprehensive study of the most massive globular cluster, Omega Centauri, in the farultraviolet (FUV), extending from the center to ∼28% of the tidal radius using the Ultraviolet Imaging Telescope on ...
  • REST: A Java Package for Crafting Realistic Cosmic Dust Particles 
    Halder, Prithish (IOP Publishing, 2022-11)
    The overall understanding of cosmic dust particles is mainly inferred from the different Earth-based measurements of interplanetary dust particles and space missions such as Giotto, Stardust, and Rosetta. The results from ...
  • Revisiting the Transit Timing Variations in the TrES-3 and Qatar-1 Systems with TESS Data 
    Mannaday, Vineet Kumar; Thakur, Parijat; Southworth, John; Jiang, Ing-Guey; Sahu, D. K; Mancini, L; Vanko, M; Kundra, Emil; Gajdos, Pavol; A-thano, Napaporn; Sariya, Devesh P; Yeh, Li-Chin; Griv, Evgeny; Mkrtichian, David; Shlyapnikov, Aleksey (American Astronomical Society, 2022-11-01)
    We present and analyze 58 transit light curves of TrES-3b and 98 transit light curves of Qatar-1b, observed by the Transiting Exoplanet Survey Satellite, plus two transit light curves of Qatar-1b, observed by us, using a ...
  • The Active Chromospheres of Lithium-rich Red Giant Stars* 
    Sneden, Christopher; Afsar, Melike; Bozkurt, Zeynep; Adamow, Monika; Mallick, Anohita; Reddy, B. E; Janowiecki, Steven; Mahadevan, Suvrath; Bowler, Brendan P; Hawkins, Keith; Lind, Karin; Dupree, Andrea K; Ninan, Joe P; Nagarajan, Neel; Topcu, Gamze Bocek; Froning, Cynthia S; Bender, Chad F; Terrien, Ryan; Ramsey, Lawrence W; Mace, Gregory N (American Astronomical Society, 2022-11-20)
    We have gathered near-infrared zyJ-band high-resolution spectra of nearly 300 field red giant stars with known lithium abundances in order to survey their He I λ10830 absorption strengths. This transition is an indicator ...
  • Carbon Abundance of Stars in the LAMOST-Kepler Field 
    Athira Unni; Narang, Mayank; Sivarani, T; Puravankara, Manoj; Banyal, R. K; Surya, Arun; Rajaguru, S. P; Swastik, C (American Astronomical Society, 2022-11-01)
    The correlation between host star iron abundance and the exoplanet occurrence rate is well established and arrived at in several studies. Similar correlations may be present for the most abundant elements, such as carbon ...
  • Active galactic nucleus feedback in NGC 3982 
    Joseph, P; George, K; Paul, K. T (EDP Sciences, 2022-11)
    The energetic feedback from supermassive black holes can influence star formation at the centres of galaxies. Observational evidence for active galactic nucleus (AGN) impact on star formation can be searched for in galaxies ...
  • Horizons: nuclear astrophysics in the 2020s and beyond 
    Schatz, H; Becerril Reyes, A. D; Best, A; Brown, E. F; Chatziioannou, K; Chipps, K. A; Deibel, C. M; Ezzeddine, R; Galloway, D. K; Hansen, C. J; Herwig, F; Gibson, B. K; Gorda, T; Gourgouliatos, K. N; Graber, V; Gupta, M; Haxton, W. C; Heger, A; Nevins, B; Hix, W. R; Ho, W. C. G; Rebeiro, B. M; Holmbeck, E. M; Hood, A. A; Huth, S; Imbriani, G; Izzard, R. G; Jain, R; Jayatissa, H; Johnston, Z; Newton, W. G; Kajino, T; Reifarth, R; Kankainen, A; Kiss, G. G; Kwiatkowski, A; La Cognata, M; Laird, A. M; Lamia, L; Landry, P; Laplace, E; Launey, K. D; Nguyen, L. Q; Richard, A. L; Leahy, D; Leckenby, G; Lennarz, A; Longfellow, B; Lovell, A. E; Lynch, W. G; Lyons, S. M; Maeda, K; Masha, E; Matei, C; Rijal, N; Nishikawa, K; Merc, J; Messer, B; Montes, F; Mukherjee, A; Nishimura, N; Nunes, F. M; O'Connor, E; O'Shea, B. W; Ji, A. P; Roederer, I. U; Ong, W. J; Pain, S. D; Pajkos, M. A; Pignatari, M; Pizzone, R. G; Placco, V. M; Plewa, T; Pritychenko, B; Psaltis, A; Puentes, D; Rojo, J. S; Lugaro, M; Qian, Y-Z; Radice, D; Rapagnani, D; J. S. K; Meisel, Z; Saito, Y; Schwenk, A; Cote, B; Sergi, M. L; Sidhu, R. S; Simon, A; Sivarani, T; Skuladottir, A; Smith, M. S; Spiridon, A; Sprouse, T. M; Norman, D; Starrfield, S; Caplan, M. E; Steiner, A. W; Strieder, F; Sultana, I; Surman, R; Szucs, T; Tawfik, A; Thielemann, F; Trache, L; Trappitsch, R; Read, J. S; Champagne, A. E; Tsang, M. B; Tumino, A; Upadhyayula, S; Valle Martínez, J. O; Van der Swaelmen, M; Viscasillas Vazquez, C; Watts, A; Wehmeyer, B; Wiescher, M; Wrede, C; Clark, J. A; Roberts, L. F; Yoon, J; Zegers, R. G. T; Zermane, M. A; Zingale, M; Spyrou, A; Timmes, F. X; Travaglio, C; Vassh, V; Abia, C; Couder, M; Adsley, P; Agarwal, S; Aliotta, M; Aoki, W; Arcones, A; Aryan, A; Bandyopadhyay, A; Banu, A; Bardayan, D. W; Barnes, J; Couture, A; Bauswein, A; Beers, T. C; Bishop, J; Boztepe, T; de Mink, S. E; Debnath, S; deBoer, R. J; den Hartogh, J; Mumpower, M. R; Denissenkov, P; Dexheimer, V; Dillmann, I; Escher, J. E; Famiano, M. A; Farmer, R; Fisher, R; Frohlich, C; Frebel, A; Fryer, C; Neto, D; Fuller, G; Ganguly, A. K; Ghosh, S (IOP Publishing, 2022-11)
    Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which seeks to understand the nuclear engines of astronomical objects and the origin of the chemical elements. This white paper ...
  • GROWTH on S190426c II: GROWTH-India Telescope search for an optical counterpart with a custom image reduction and candidate vetting pipeline 
    Kumar, Harsh; Bhalerao, Varun; Anupama, G. C; Barway, Sudhanshu; Coughlin, Michael W; De, Kishalay; Deshmukh, Kunal; Dutta, Anirban; Goldstein, Daniel A; Jassani, Adeem; Joharle, Simran; Karambelker, Viraj; Khandagale, Maitreya; Kumar, B; Saraogi, Divita; Sharma, Yashvi; Shenoy, Vedant; Singer, Leo; Singh, A; Waratkar, Gaurav (Oxford University Press on behalf of Royal Astronomical Society, 2022-11)
    S190426c/GW190426 152155 was the first probable neutron star–black hole merger candidate detected by the LIGO-Virgo Collaboration. We undertook a tiled search for optical counterparts of this event using the 0.7-m ...
  • The PHEMU21 catalogue and astrometric results of the observations of the mutual occultations and eclipses of the Galilean satellites of Jupiter made in 2021 
    Emelyanov, N; Arlot, J-E; Anbazhagan, P; Andre, P; Bardecker, J; Canaud, G; Coliac, J. F; De Elias Cantalapiedra, J; Ellington, C. K; Fernandez, J. M; Forbes, M; Gazeas, K; Gault, D; George, T; Gourdon, F; Herald, D; Huber, D; Iglesias-Marzoa, R; Izquierdo, J; Jorba Lloveras, R; Kerr, S; Lasala, A; Le Guen, P; Leroy, A; Lutz, M; Maley, P; Mannchen, T; Mari, J. M; Maury, A; Newman, J; Palafouta, S; Prieto Gallego, J; Roger, P; Roschli, D; Selvakumar, G; Serra, V; Stuart, P; Turchenko, M; Vasundhara, R; Velasco, E (Oxford University Press on behalf of Royal Astronomical Society, 2022-11)
    2021 wasthe year ofJupiter’s equinox, that isthe Sun and the Earth passed through the equatorial plane of the planet and therefore the orbital planes of its main satellites. This occurrence made it possible to observe ...

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