IIAP Publications: Recent submissions

  • Spectral and temporal studies of Swift J1658.2–4242 using AstroSat observations with the JeTCAF model 
    Mondal, Santanu; Jithesh, V (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    We present the X-ray spectral and temporal analysis of the black hole X-ray transient Swift J1658.2–4242 observed by AstroSat. Three epochs of data have been analysed using the JeTCAF model to estimate the mass accretion ...
  • Stability of galaxies across morphological sequence 
    Aditya, K (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    We investigate the stability of nearby disc galaxies and galaxies at redshift (z) equal to 4.5. We explore the connection between the stability parameter (QRW), star formation rate (SFR), gas fraction (f Gas), and the ...
  • uGMRT observations of the hot-Saturn WASP-69b: Radio-Loud Exoplanet–Exomoon Survey II (RLEES II) 
    Narang, Mayank; Oza, Apurva V; Hakim, Kaustubh; Manoj, P; Tyagi, Himanshu; Banerjee, Bihan; Surya, Arun; Nayak, Prasanta K; Banyal, R. K; Thorngren, Daniel P (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    Exomoons have so far eluded ongoing searches. Several studies have exploited transit and transit timing variations and highresolution spectroscopy to identify potential exomoon candidates. One method of detecting and ...
  • Type Ia supernovae SN 2013bz, PSN J0910 + 5003, and ASASSN-16ex: similar to 09dc-like? 
    Tiwari, S; Chakradhari, N. K; Sahu, D. K; Anupama, G. C; Kumar, B; Sahu, K. R (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    We present optical photometric and spectroscopic studies of three supernovae (SNe): SN 2013bz, PSN J0910 + 5003, and ASASSN-16ex (SN 2016ccj). UV–optical photometric data of ASASSN-16ex obtained with the Swift ...
  • Exploring diffuse radio emission in galaxy clusters and groups with uGMRT and SKA 
    Paul, Surajit; Kale, Ruta; Basu, Aritra; Sur, Sharanya; Parekh, Viral; Gupta, Prateek; Chatterjee, Swarna; Salunkhe, Sameer; Iqbal, Asif; Pandey-Pommier, Mamta; Raja, Ramij; Rahaman, Majidul; Raychaudhury, Somak; Nath, Biman B; Majumdar, Subhabrata (Indian Academy of Sciences, 2023-06)
    Diffuse radio emission has been detected in a considerable number of galaxy clusters and groups, revealing the presence of pervasive cosmic magnetic fields, and of relativistic particles in the large scale structure of the ...
  • Propagation of coronal mass ejections from the Sun to the Earth 
    Mishra, Wageesh; Teriaca, Luca (Indian Academy of Sciences, 2023-06)
    Coronal mass ejections (CMEs), as they can inject a large amounts of mass and magnetic flux into the interplanetary space, are the primary source of space weather phenomena on the Earth. The present review first briefly ...
  • Particle production during inflation: constraints expected from redshifted 21 cm observations from the epoch of reionization 
    Naik, Suvedha Suresh; Pravabati, C; Furuuchi, Kazuyuki (IOP Publishing, 2023-04)
    We examine a type of feature in the primordial scalar power spectrum, namely, the bump-like feature(s) that arise as a result of burst(s) of particle production during inflation. The latest CMB observations by Planck ...
  • Comparison Between Radio Loud and Radio Quiet Fast CMEs: A Reason for Radio Quietness 
    Syed Ibrahim, M; Ebenezer, E; Shanmugaraju, A (Springer, 2023-04)
    It is well known that fast CMEs are mostly associated with magnetohydrodynamic (MHD) shocks in the solar corona, forming type-II radio bursts. However, the absence of type-II radio bursts is not uncommon. Herein, we aim ...
  • Is the observable Universe consistent with the cosmological principle? 
    Aluri, Pavan Kumar; Cea, Paolo; Pravabati, C; Chu, Ming-Chung; Clowes, Roger G; Hutsemekers, Damien; Kochappan, Joby P; Lopez, Alexia M; Liu, Lang; Martens, Niels C. M; Martins, C. J. A. P; Migkas, Konstantinos; Colgain, Eoin O; Pranav, Pratyush; Shamir, Lior; Singal, Ashok K; Sheikh-Jabbari, M. M; Wagner, Jenny; Wang, Shao-Jiang; Wiltshire, David L; Yeung, Shek; Yin, Lu; Zhao, Wen (IOP Publishing, 2023-05-04)
    The cosmological principle (CP)—the notion that the Universe is spatially isotropic and homogeneous on large scales—underlies a century of progress in cosmology. It is conventionally formulated through the Friedmann-Lem ...
  • Modelling dark matter halo spin using observations and simulations: application to UGC 5288 
    Ansar, Sioree; Kataria, Sandeep Kumar; Mousumi Das (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    Dark matter (DM) halo properties are extensively studied in cosmological simulations but are very challenging to estimate from observations. The DM halo density profile of observed galaxies is modelled using multiple ...
  • RR Lyrae Stars in the Globular Cluster Palomar 2 
    Ferro, A. Arellano; Fierro, Bustos; Muneer, S; Giridhar, S (Universidad Nacional Autonoma De Mexico, 2023-04)
    A CCD VI imaging time-series over 11-year is employed to explore the light curves of stars in the field of Palomar 2. We discovered 20 RRab and 1 RRc variables. A revision of Gaia-DR3 data enabled us to identify 10 more ...
  • 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 ...
  • Confirmation of two magnetic cataclysmic variables as polars: 1RXS J174320.1−042953 and YY Sex 
    Rawat, Nikita; Pandey, J. C; Joshi, Arti; Potter, Stephen B; Hojaev, Alisher S; De Becker, Michael; Rao, Srinivas M; Yadava, Umesh (Oxford University Press on behalf of Royal Astronomical Society, 2023-05)
    We present our analysis of new and archived observations of two candidate magnetic cataclysmic variables, namely 1RXS J174320.1−042953 and YY Sex. 1RXS J174320.1−042953 was observed in two distinctive high and low states ...
  • Multiwavelength study of radio galaxy Pictor A: detection of western hotspot in far-UV and possible origin of high energy emissions 
    Gulati, Sanna; Bhattacharya, Debbijoy; Ramadevi, M. C; Stalin, C. S; Sreekumar, P (Oxford University Press on behalf of Royal Astronomical Society, 2023-05)
    A comprehensive study of the nucleus and western hotspot of Pictor A is carried out using AstroSat observations, 13 yr of Fermi, and archival Swift observations along with other published data. We report the first detection ...
  • Optical characterization and radial velocity monitoring with Belgian and Indian telescopes (ORBIT): the eclipsing binaries EPIC 211982753 and EPIC 211915147 
    Panchal, Alaxender; Joshi, Y. C; De Cat, Peter; Lampens, Patricia; Goswami, A; Tiwari, S. N (Oxford University Press on behalf of Royal Astronomical Society, 2023-05)
    The K2 eclipsing binary (EB) candidates EPIC 211982753 (hereinafter called EPIC2753) and EPIC 211915147 (hereinafter called EPIC5147) are characterized with the help of photometric and high-resolution spectroscopic data. ...
  • Spectroscopic Study of Ba and CEMP-s Stars: Mass Distribution of AGB Progenitors 
    Goswami, P. P; Goswami, A (American Astronomical Society, 2023-04-01)
    We have performed detailed high-resolution spectroscopic analysis on seven metal-poor stars (BD+75 348, BD +09 3019, HD238020, HE0319–0215, HE0507–1653, HE0930–0018, HE1023–1504) and derived their atmospheric parameters ...
  • Unravelling optical and X-ray properties of the disc-dominated intermediate polar IGR J15094-6649 
    Joshi, Arti; Rawat, Nikita; Schwope, Axel; Pandey, J. C; Scaringi, Simone; Sahu, D. K; Rao, Srinivas M; Singh, Mridweeka (Oxford University Press on behalf of Royal Astronomical Society, 2023-06)
    We present analyses of an Intermediate Polar, IGR J15094-6649, based on the archival optical data obtained from the Transiting Exoplanet Survey Satellite (TESS) and X-ray data obtained from the Suzaku, NuSTAR, and Neil ...
  • Variation of Small Scale Magnetic Fields Over a Century using Ca-K Images as Proxy 
    Singh, J; Priyal, M; Ravindra, B; Bertello, Luca; Pevtsov, Alexei (2023-04)
    A combined uniform and long-time series of Ca-K images from the Kodaikanal Observatory, Mount Wilson Observatory and Mauna Loa Solar Observatory was used to identify and study the Ca-K small-scale features and their solar ...
  • SOFIA Observations of 30 Doradus. II. Magnetic Fields and Large-scale Gas Kinematics 
    Tram, Le Ngoc; Bonne, Lars; Hu, Yue; Lopez-Rodriguez, Enrique; Guerra, Jordan A; Lesaffre, Pierre; Gusdorf, Antoine; Hoang, Thiem; Lee, Min-Young; Lazarian, Alex; Andersson, B-G; Coude, Simon; Archana Soam; Vacca, William D; Lee, Hyeseung; Gordon, Michael (American Astronomical Society, 2023-03-20)
    The heart of the Large Magellanic Cloud, 30 Doradus, is a complex region with a clear core-halo structure. Feedback from the stellar cluster R136 has been shown to be the main source of energy creating multiple parsecscale ...
  • Do Hα Stokes V Profiles Probe the Chromospheric Magnetic Field? An Observational Perspective 
    Mathur, Harsh; Nagaraju, K; Joshi, Jayant; de la Cruz Rodriguez, Jaime (American Astronomical Society, 2023-03-20)
    We investigated the diagnostic potential of the Stokes V profile of the Hα line to probe the chromospheric line-ofsight (LOS) magnetic field (BLOS) by comparing the BLOS inferred from the weak field approximation (WFA) ...

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