IIAP Publications: Recent submissions

  • 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 ...
  • RAD@home citizen science discovery of an active galactic nucleus spewing a large unipolar radio bubble on to its merging companion galaxy 
    Hota, Ananda; Dabhade, Pratik; Vaddi, Sravani; Konar, Chiranjib; Pal, Sabyasachi; Gulati, Mamta; Stalin, C. S; Avinash, Ck; Kumar, Avinash; Rajoria, Megha; Purohit, Arundhati (Oxford University Press on behalf of Royal Astronomical Society, 2022-11)
    Active galactic nucleus (AGN) feedback during galaxy merger has been the most favoured model to explain black hole–galaxy co-evolution. However, how the AGN-driven jet/wind/radiation is coupled with the gas of the merging ...
  • Core orientations and magnetic fields in isolated molecular clouds 
    Sharma, Ekta; Maheswar, G; Archana Soam; Lee, Chang Won; Seshadri, T. R (Oxford University Press on behalf of Royal Astronomical Society, 2022-11)
    Molecular clouds are sites of star formation. Magnetic fields are believed to play an important role in their dynamics and shaping morphology. We aim to study any possible correlation that might exist between the magnetic ...
  • UOCS –VIII. UV study of the open cluster NGC 2506 using ASTROSAT 
    Panthi, Anju; Vaidya, Kaushar; Jadhav, Vikrant V; Khushboo Rao, K; Subramaniam, A; Agarwal, Manan; Pandey, Sindhu (Oxford University Press on behalf of Royal Astronomical Society, 2022-11)
    We study an intermediate-age open cluster (OC) NGC 2506 using the ASTROSAT/UVIT data and other archival data. We identified 2175 cluster members using a machine learning-based algorithm, ML–MOC, on Gaia EDR3 data. Among ...
  • Can the Violent Merger of White Dwarfs Explain the Slowest Declining Type Ia Supernova SN 2011aa? 
    Dutta, Anirban; Anupama, G. C; Chakradhari, Nand Kumar; Sahu, D. K (American Astronomical Society, 2022-10-20)
    We present optical observations and Monte Carlo radiative transfer modeling of the Type Ia supernova (SN Ia) SN 2011aa. With a Δm15(B) of 0.59 ± 0.07 mag and a peak magnitude MB of −19.30 ± 0.27 mag, SN 2011aa has the ...
  • The Propagation of Coherent Waves Across Multiple Solar Magnetic Pores 
    Grant, S. D. T; Jess, D. B; Stangalini, M; Jafarzadeh, S; Fedun, V; Verth, G; Keys, P. H; Rajaguru, S. P; Uitenbroek, H; MacBride, C. D; Bate, W; Gilchrist-Millar, C. A (American Astronomical Society, 2022-10-20)
    Solar pores are efficient magnetic conduits for propagating magnetohydrodynamic wave energy into the outer regions of the solar atmosphere. Pore observations often contain isolated and/or unconnected structures, preventing ...
  • Hi-C 2.1 Observations of Reconnection Nanojets 
    Patel, Ritesh; Pant, V (American Astronomical Society, 2022-10-20)
    One of the possible mechanisms for heating the solar atmosphere is the magnetic reconnection occurring at different spatiotemporal scales. The discovery of fast bursty nanojets due to reconnection in the coronal loops has ...
  • Transit Light Curves for Exomoons: Analytical Formalism 
    Saha, Suman; Sengupta, S (American Astronomical Society, 2022-09-01)
    The photometric transit method has been the most effective method to detect and characterize exoplanets as several ground based as well as space based survey missions have discovered thousands of exoplanets using this ...
  • India's First Robotic Eye for Time-domain Astrophysics: The GROWTH-India Telescope 
    Kumar, Harsh; Bhalerao, Varun; Anupama, G. C; Barway, Sudhanshu; Basu, Judhajeet; Deshmukh, Kunal; De, Kishalay; Dutta, Anirban; Fremling, Christoffer; Iyer, Hrishikesh; Jassani, Adeem; Joharle, Simran; Karambelkar, Viraj; Khandagale, Maitreya; Krishna, K Adithya; Kulkarni, Sumeet; Mate, Sujay; Patil, Atharva; Phanindra, D. V. S; Samantaray, Subham; Sharma, Kritti; Sharma, Yashvi; Shenoy, Vedant; Singh, Avinash; Srivastava, Shubham; Swain, Vishwajeet; Waratkar, Gaurav; Angchuk, D; Dorjay, Padma; Dorjai, T; Gyalson, T; Jorphail, S; Mahay, T. T; Norbu, Rigzin; Sharma, Tarun Kumar; Stanzin, Jigmet; Stanzin, Tsewang; Stanzin, Urgain (American Astronomical Society, 2022-09-01)
    We present the design and performance of the GROWTH-India telescope, a 0.7 m robotic telescope dedicated to time-domain astronomy. The telescope is equipped with a 4k back-illuminated camera that gives a 0fdg82 field of ...
  • Characterization of hot populations of Melotte 66 open cluster using Swift/UVOT 
    Rao, Khushboo K; Vaidya, Kaushar; Agarwal, Manan; Panthi, Anju; Jadhav, Vikrant V (Oxford University Press on behalf of Royal Astronomical Society, 2022-10)
    Ultraviolet (UV) wavelength observations have made a significant contribution to our understanding of hot stellar populations of star clusters. Multiwavelength spectral energy distributions (SEDs) of stars, including ...
  • Smallest Scale Clumpy Star Formation in Stephan's Quintet Revealed from UV and IR Imaging 
    Joseph, P; George, K; Subramanian, S; Mondal, C; Subramaniam, A (IOP Publishing, 2022-09)
    The spatial distribution and physical sizes of star-forming clumps at the smallest scales provide valuable information on hierarchical star formation (SF). In this context, we report the sites of ongoing SF at ∼120 pc along ...
  • Study of correlation between optical flux and polarization variations in BL Lac objects 
    Rajput, Bhoomika; Pandey, Ashwani; Stalin, C. S; Mathew, Blesson (Oxford University Press on behalf of Royal Astronomical Society, 2022-12)
    Polarized radiation from blazars is one key piece of evidence for synchrotron radiation at low energy, which also shows variations. We present here our results on the correlation analysis between optical flux and polarization ...
  • Evolutionary Status of Selected Post-AGB Single and Binary Stars in Gaia DR3 
    Parthasarathy, M; Kounkel, Marina; Stassun, Keivan G (IOP Publishing, 2022-08)
    Gaia data is helping to further understand the evolutionary status of post-AGB and related stars. In this paper we present an analysis of Gaia DR3 data of post-AGB stars and post-AGB binaries with accurate parallaxes. Gaia ...
  • ताराग्रह: हमारे सौर मडंल के बाहर की दुनिया 
    Banyal, R. K; Puravankara, Manoj (NIScPR-CSIR,India, 2022-10)
    दो स्तों, सौर मंडल के बारे में आप बखूबी जानते होंगे लेकिन आज के इस लेख में हम उन अद्भुत ग्रहों के बारे में बात करेंगे जो आकाश में अनगिनत प्रत्यक्ष और अदृश्य तारों के इर्द-गिर्द घूमते हैं। शब्दावली की आसानी के लिए, अन्य ...
  • Spectroscopy of He atom encapsulated in C60 cage: low lying magnetic dipolar (M1) and magnetic quadrupolar (M2) transitions 
    Chaudhuri, S. K (Canadian science publishing, 2022-08)
    The spectroscopic properties of magnetic dipolar and quadrupolar transitions (M1 and M2) of He atom encapsulated under neutral and charged C60 fullerene cage have been estimated here to understand the effect of cage ...

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