IIAP Publications: Recent submissions

  • Intermediate luminosity type Iax supernova 2019muj with narrow absorption lines: long-lasting radiation associated with a possible bound remnant predicted by the weak deflagration model 
    Kawabata, Miho; Maeda, Keiichi; Yamanaka, Masayuki; Nakaoka, Tatsuya; Kawabata, Koji S; Aoki, Kentaro; Anupama, G. C; Burgaz, Umut; Anirban Dutta; Isogai, Keisuke; Kino, Masaru; Kojiguchi, Naoto; Kota, Iida; Brajesh Kumar; Kuroda, Daisuke; Maehara, Hiroyuki; Matsubayash, Kazuya; Morihana, Kumiko; Murata, Katsuhiro L; Ohshima, Tomohito; Otsuka, Masaaki; Sahu, D. K; Avinash Singh; Sugitani, Koji; Takahashi, Jun; Takagi, Kengo (Oxford University Press on behalf of the Astronomical Society of Japan, 2021-10)
    We present comprehensive spectroscopic and photometric analyses of the intermediate luminosity type Iax supernova (SN Iax) 2019muj based on multi-band datasets observed through the framework of the OISTER target-of-opportunity ...
  • The intermediate polar cataclysmic variable GK Persei 120 years after the nova explosion: a first dynamical mass study 
    Alvarez-Hernandez, A; Torre, M. A. P; Rodriguez-Gil, P; Shahbaz, T; Anupama, G. C; Gazeas, K. D; Pavana, M; Raj, A; Hakala, P; Stone, G; Gomez, S; Jonker, P. G; Ren, J.- J; Cannizzaro, G; Pastor-Marazuela, I; Goff, W; Corral-Santana, J. M; Sabo, R (Oxford University Press on behalf of Royal Astronomical Society, 2021-11)
    We present a dynamical study of the intermediate polar and dwarf nova cataclysmic variable GK Persei (Nova Persei 1901) based on a multisite optical spectroscopy and R-band photometry campaign. The radial velocity curve ...
  • Successive injection of opposite magnetic helicity: evidence for active regions without coronal mass ejections 
    Vemareddy, P (Oxford University Press on behalf of Royal Astronomical Society, 2021-11)
    Magnetic helicity (MH) is a measure of twist and shear of magnetic field. MH is injected in the active region (AR) corona through photospheric footpoint motions causing twisted and sheared magnetic fields. From the ...
  • The XMM-SERVS Survey: XMM-Newton point-source catalogs for the W-CDF-S and ELAIS-S1 fields 
    Ni, Qingling; Brand, W. N; Chen, Chien-Ting; Luo, Bin; Nyland, Kristina; Yang, Guang; Zou, Fan; Aird, James; Alexander, David M; Bauer, Franz Erik; Lacy, Mark; Lehmer, Bret D; Mallick, Labani; Salvato, Mara; Schneider, Donald P; Tozzi, Paolo; Traulsen, Iris; Vaccari, Mattia; Vignali, Cristian; Vito, Fabio; Xue, Yongquan; Banerji, Manda; Chow, Kate; Comastri, Andrea; Del Moro, Agnese; Gilli, Roberto; Mullaney, James; Paolillo, Maurizio; Schwope, Axel; Shemmer, Ohad; Sun, Mouyuan; Timlin III, John D; Trump, Jonathan R (IOP Publishing, 2021-09)
    We present the X-ray point-source catalogs in two of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields, W-CDF-S (4.6 deg2) and ELAIS-S1 (3.2 deg2), aiming to fill the gap between deep pencil-beam ...
  • TRAO survey of the nearby filamentary molecular clouds, the universal nursery of stars (TRAO FUNS). II. filaments and dense cores in IC 5146 
    Chung, Eun Jung; Lee, Chang Won; Kim, Shinyoung; Maheswar, G; Tafalla, Mario; Caselli, Paola; Myers, Philip C; Liu, Tie; Yoo, Hyunju; Kim, Kyoung Hee; Kim, Mi-Ryang; Archana Soam; Cho, Jungyeon; Kwon, Woojin; Lee, Changhoon; Kan, Hyunwoo (IOP Publishing, 2021-09-20)
    We present the results on the physical properties of filaments and dense cores in IC 5146, as a part of the TRAO FUNS project. We carried out on-the-fly mapping observations using the Taeduk Radio Astronomy Observatory ...
  • Quantifying the classification of exoplanets: in search for the right habitability metric 
    Safonova, M; Mathur, Archana; Basak, Suryoday; Bora, Kakoli; Agrawal, Surbhi (Jointly published by EDP Sciences, Società Italiana di Fisica and Springer Berlin Heidelberg, 2021-09)
    What is habitability? Can we quantify it? What do we mean under the term habitable or potentially habitable planet? With estimates of the number of planets in our Galaxy alone running into billions, possibly a number greater ...
  • Habitability classification of exoplanets: a machine learning insight 
    Basak, Suryoday; Mathur, Archana; Theophilus, Abhijit Jeremiel; Deshpande, Gouri; Murthy, J (Jointly published by EDP Sciences, Springer-Verlag GmbH, 2021-09)
    We explore the efficacy of machine learning (ML) in characterizing exoplanets into different classes. The source of the data used in this work is University of Puerto Rico’s Planetary Habitability Laboratory’s Exoplanets ...
  • Fixing the chronology in Tai-Ahom chronicles by using astronomical references 
    Kapoor, R. C (National Astronomical Research Institute of Thailand, 2021-11)
    The Tai-Ahom are an ethnic group, the admixed descendants of the Tai or Shan people who migrated from North Burma into the Brahmaputra Valley of Assam in India in the early decades of the thirteenth century. Their history ...
  • Tales from India: the great march comet of 1843 (C/1843 D1) 
    Kapoor, R. C (National Astronomical Research Institute of Thailand, 2021-11)
    This paper discusses the observations of the Great March Comet of 1843 made from India. The observers were at various locations and the newly formed observatories participated in the astronomical observations spread over ...
  • Radio, X-ray, and extreme-ultraviolet observations of weak energy releases in the "Quiet" sun 
    Ramesh, R; Kathiravan, C; Mithun, N. P. S; Vadawale, S. V (IOP Publishing, 2021-09-01)
    We analyzed ground-based low frequency (<100 MHz) radio spectral and imaging data of the solar corona obtained with the facilities in the Gauribidanur observatory during the same time as the very weak soft X-ray flares ...
  • Kodaikanal solar observatory radio spectrograph 
    Barve, Indrajit V; Kathiravan, C; Gireesh, G. V. S; Anand, M. N; Rajesh, M; Rajalingam, M; Ebenezer, E; Ramesh, R (Springer Nature B.V., 2021-09)
    The Indian Institute of Astrophysics (IIA) has commissioned a low frequency (<100 MHz) spectrograph at its Kodaikanal Solar Observatory (KSO) for coordinated observations of transients in the solar atmosphere with other ...
  • Evaluation of fractional clear sky over potential astronomical sites 
    Shantikumar, N. S; Song, H.- J; Mugil, S. K; Dumka, U. C; Larson, E. J. L; Brijesh Kumar; Sagar, R (Oxford University Press on behalf of Royal Astronomical Society, 2021-11)
    The estimation of the night-time cloud fraction (CF) is found to be one of the key parameters for evaluating the number of useful nights at an astronomical site. This work evaluates useful astronomical night-time observation ...
  • Polarization signatures of Mars dust and clouds: prospects for future spacecraft observations 
    Jaiswal, Bhavesh; Mahapatra, G; Nandi, Anuj; Sudhakar, M; Sankarasubramanian, K; Sheel, V (Elsevier B. V, 2021-07)
    The study of polarized sunlight scattered from planetary atmospheres provides diagnostic tools that can help explore the possible composition and size distribution of clouds and aerosol particles. Previous studies have ...
  • Using an Artsimovich Railgun for return from the Moon 
    Sazhin, M. V; Safonova, M. V; Sementsov, V. N (Springer, 2021-05)
    Nonstandard techniques to deliver a payload from the Moon to Earth are explored. Two approaches are compared, which are based on using a space elevator and an acceleration device, the Artsimovich railgun. The energy needed ...
  • Generic models for disk-resolved and disk-integrated phase-dependent linear polarization of light reflected from exoplanets 
    Chakrabarty, Aritra; Sengupta, S (IOP Publishing, 2021-08-20)
    Similar to the case of solar system planets, reflected starlight from exoplanets is expected to be polarized due to atmospheric scattering, and the net disk-integrated polarization should be nonzero owing to the asymmetrical ...
  • Optical and NIR spectroscopy of cool CEMP stars to probe the nucleosynthesis in low-mass AGB binary system 
    Susmitha, A; Ojha, D. K; Sivarani, T; Ninan, J. P; Bandyopadhyay, A; Surya, Arun; Unni, Athira (Oxford University Press on behalf of Royal Astronomical Society, 2021-09)
    We present the abundance analyses of seven carbon enhanced metal-poor (CEMP) stars to understand the origin of carbon in them. We used high-resolution optical spectra to derive abundances of various elements. We also used ...
  • Multipoint remote and in situ observations of interplanetary coronal mass ejection structures during 2011 and associated geomagnetic storms 
    Mishra, Wageesh; Dave, Kunjal; Srivastava, N; Teriaca, L (Oxford University Press on behalf of Royal Astronomical Society, 2021-09)
    We present multipoint remote and in situ observations of interplanetary coronal mass ejection (ICME) structures during the year 2011. The selected ICMEs arrived at Earth on 2011 March 11 and 2011 August 6, and led to ...
  • UOCS.VI. UVIT/AstroSat detection of low-mass white dwarf companions to 4 more blue stragglers in M67 
    Pandey, Sindhu; Subramaniam, A; Jadhav, Vikrant V (Oxford University Press on behalf of the Royal Astronomical Society, 2021-10)
    Blue stragglers stars (BSSs) in M67 have attracted attention from observations and theory to unravel their formation mechanisms. In the series of Ultra Violet Imaging Telescope (UVIT on AstroSat) study of Open clusters ...
  • Radio interferometric observations of the Sun using commercial dish TV antennas 
    Gireesh, G. V. S; Kathiravan, C; Barve, Indrajit V; Ramesh, R (Springer, 2021-08)
    The radio astronomy group in the Indian Institute of Astrophysics (IIA) has been carrying out routine observations of radio emission from the solar corona at low frequencies (≈40 – 440 MHz) at the Gauribidanur observatory, ...
  • Blue straggler stars in open clusters using Gaia: dependence on cluster parameters and possible formation pathways 
    Jadhav, Vikrant V; Subramaniam, A (Oxford University Press on behalf of the Royal Astronomical Society, 2021-10)
    Blue straggler stars (BSSs) are the most massive stars in a cluster formed via binary or higher-order stellar interactions. Though the exact nature of such formation scenarios is difficult to pin down, we provide observational ...

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