IIA Institutional Repository: Recent submissions

  • IIA director to get Vigyan Shri award 
    The Times of India (The Times of India, 2024-08-07)
  • Herschel investigation of cores and filamentary structures in L1251 located in the Cepheus flare 
    Dewan, Divyansh; Archana Soam; Zhang, Guo-Yin; Lasrado, Akhil; Singh, Saikhom Pravash; Lee, Chang Won (Indian Academy of Sciences, 2024-12)
    Abstract. Context: Molecular clouds are the prime locations of star formation. These clouds contain filamentary structures and cores which are crucial in the formation of young stars. Aims: In this work, we aim to quantify ...
  • UVIT Study of the MAgellanic Clouds (U-SMAC) – I. Recent star formation history and kinematics of the Shell region in the north-eastern Small Magellanic Cloud 
    Hota, Sipra; Subramaniam, A; Dhanush, S. R; Cioni, Maria-Rosa L; Subramanian, S (Oxford University Press on behalf of Royal Astronomical Society, 2024-07)
    The interactions between the Magellanic Clouds significantly affect the shape and distribution of the young stellar population, particularly in the periphery of the Small Magellanic Cloud (SMC). We present the first far-UV ...
  • Gas Kinematics and Dynamics of Carina Pillars: A Case Study of G287.76-0.87 
    Tung, Ngo-Duy; Tram, Le Ngoc; Archana Soam; Reach, William T; Das, Edwin; Chambers, Ed; Mathew, Blesson; Richter, Heiko (American Astronomical Society, 2024-07-10)
    We study the kinematics of a pillar, namely G287.76-0.87, using three rotational lines of 12CO(5-4), 12CO(8-7), 12CO(11-10), and a fine structure line of [O i] 63 μm in southern Carina observed by SOFIA/GREAT. This pillar ...
  • Host-star Properties of Hot, Warm, and Cold Jupiters in the Solar Neighborhood from Gaia Data Release 3: Clues to Formation Pathways 
    Banerjee, Bihan; Narang, Mayank; Manoj, P; Henning, Thomas; Tyagi, Himanshu; Surya, Arun; Nayak, Prasanta K; Tripathi, Mihir (American Astronomical Society, 2024-07-01)
    Giant planets exhibit diverse orbital properties, hinting at their distinct formation and dynamic histories. In this paper, using Gaia Data Release 3 (DR3), we investigate if and how the orbital properties of Jupiters are ...
  • Numerous bidirectionally propagating plasma blobs near the reconnection site of a solar eruption 
    Hou, Zhenyong; Tian, Hui; Madjarska, Maria S; Chen, Hechao; Samanta, T; Bai, Xianyong; Li, Zhentong; Su, Yang; Chen, Wei; Deng, Yuanyong (EDP Sciences, 2024-07)
    A current sheet is a common structure involved in solar eruptions. However, it is observed in a minority of the events, and the physical properties of its fine structures during a solar eruption are rarely investigated. ...
  • Data processing of visible emission line coronagraph onboard ADITYA-L1 
    Priyal, M; Singh, J; Prasad, B. R; Sumana, Chavali; Kumar, Varun; Mishra, Shalabh; Venkata, S. N; Sindhuja, G; Sasikumar Raja, K; Amit Kumar; Krishnan, Sanal; Hegde, Bhavana; Utkarsha, D; Natarajan, V; Somasundaram, P. K; Nagabhushana, S; Kamath, P. U; Kathiravan, S; Mani, V. T; Basavaraju, Suresh; Chavan, Rajkumar; Vemareddy, P; Ravindra, B; Rajaguru, S. P; Nagaraju, K; Mishra, Wageesh; Joshi, Jayant; Samanta, T; Chatterjee, Piyali; Kathiravan, C; Ramesh, R (Elsevier B.V, 2024-07-01)
    ADITYA-L1 is India's first dedicated mission to observe the Sun and its atmosphere from a halo orbit around L1 point. Visible emission line coronagraph (VELC) is the primary payload on board Aditya-L1 to observe the Sun’s ...
  • Photo-ionization structures of Planetary Nebula IC 2003 with [WR] central star 
    Khushbu, K; Muthumariappan, C (Elsevier B.V, 2024-08-01)
    We present ionization structures of IC 2003, a planetary nebula with [WR] central star, using a 1-D dusty photo-ionization code: ”CLOUDY 17.03”. The photo-ionization model is constrained by archival UV emission line fluxes, ...
  • Kodaikanal Observatory marks 125 stellar years 
    The New Indian Express (The New Indian Express, 2024-07-09)
  • Gaia DR3 Data of Very Young Open Cluster NGC 6530: Distance and Evolutionary Stage of Selected Stars 
    Parthasarathy, M (American Astronomical Society, 2024-06)
    Gaia EDR3 and Gaia DR3 data of selected stars in the very young (1.5-million-year-old) open cluster NGC 6530 are presented. All the selected stars have very accurate Gaia DR3 distances. Most of the selected stars are very ...
  • First measurements of the airglow emissions from Kolhapur using an in-house developed Fabry–Perot interferometer 
    Mahavarkar, Prasanna; Sriram, S; Joshi, Bhagyashree; Gurubaran, S (IOP Publishing, 2024-06)
    First-time airglow observations of the nighttime thermospheric wind from an in-house developed ground-based Fabry–Perot Interferometer are recorded from the Kolhapur location of India. This was the first attempt to build ...
  • A Comprehensive Kinematic Model of the Large Magellanic Cloud Disk from Star Clusters and Field Stars using Gaia DR3: Tracing the Disk Characteristics, Rotation, Bar, and Outliers 
    Dhanush, S. R; Subramaniam, A; Subramanian, S (American Astronomical Society, 2024-06-20)
    The internal kinematics of the Large Magellanic Cloud (LMC) disk have been modeled by several studies using different tracers with varying coverage, resulting in a range of parameters. Here, we model the LMC disk using 1705 ...
  • Turbulence and magnetic fields in star formation 
    Archana Soam; Eswaraiah, Chakali; Seta, Amit; Dewangan, Lokesh; Maheswar, G (Indian Academy of Sciences, 2024-06)
    Molecular clouds are prime locations to study the process of star formation. These clouds contain filamentary structures and cores, which are crucial sites for the formation of young stars. The star-formation process has ...
  • Age Analysis of Extrasolar Planets: Insight from Stellar Isochrone Models 
    Swastik, C; Banyal, R. K; Narang, Mayank; Unni, Athira; Sivarani, T (American Astronomical Society, 2024-06-03)
    There is growing evidence from stellar kinematics and galactic chemical evolution suggesting that giant planets (MP 0.3MJ) are relatively young compared to the most commonly occurring population of small planets (MP < ...
  • Science with the Daksha high energy transients mission 
    Bhalerao, Varun; Sawant, Disha; Pai, Archana; Tendulkar, Shriharsh; Vadawale, Santosh; Bhattacharya, Dipankar; Rana, Vikram; Adalja, Hitesh Kumar L; Anupama, G. C; Bala, Suman; Banerjee, Smaranika; Basu, Judhajeet; Belatikar, Hrishikesh; Beniamini, Paz; Bhaganagare, Mahesh; Bhaskar, Ankush; Bhattacharjee, Soumyadeep; Bose, Sukanta; Cenko, Brad; Chanda, Mehul Vijay; Dewangan, Gulab; Dixit, Vishal; Dutta, Anirban; Gawade, Priyanka; Ghodgaonkar, Abhijeet; Goyal, Shiv Kumar; Gunasekaran, Suresh; Hemanth, Manikantan; Hotokezaka, Kenta; Iyyani, Shabnam; Guruprasad, P. J; Kasliwal, Mansi; Koyande, Jayprakash G; Kulkarni, Salil; Kutty, APK; Ladiya, Tinkal; Mahapatra, Suddhasatta; Marla, Deepak; Mate, Sujay; Mehla, Advait; Mithun, N. P. S; More, Surhud; Mote, Rakesh; Mukherjee, Dipanjan; Narang, Sanjoli; Narendranath, Shyama; Nema, Ayush; Nimbalkar, Sudhanshu; Nissanke, Samaya; Palit, Sourav; Patel, Jinaykumar; Patel, Arpit; Paul, Biswajit; Pradeep, Priya; Ramachandran, Prabhu; Roy, Kinjal; Saiguhan, B.S. Bharath; Saji, Joseph; Saleem, M; Saraogi, Divita; Sastry, Parth; Shanmugam, M; Sharma, Piyush; Shetye, Amit; Singh, Nishant; Singh, Shreeya; Singhal, Akshat; Sreekumar, S; Sridhar, Srividhya; Srinivasan, Rahul; Tallur, Siddharth; Tiwari, Neeraj K; Vadladi, Amrutha Lakshmi; Vaishnava, C.S; Vishwakarma, Sandeep; Waratkar, Gaurav (Springer Nature, 2024-06)
    We present the science case for the proposed Daksha high energy transients mission. Daksha will comprise of two satellites covering the entire sky from 1 keV to > 1 MeV. The primary objectives of the mission are to ...
  • A VLBA-uGMRT search for candidate binary black holes: study of six X-shaped radio galaxies with double-peaked emission lines 
    Sebastian, Biny; Caproni, Anderson; Kharb, Preeti; Nayana, A. J; Ali, Arshi; Rubinur, K; O Dea, Christopher P; Baum, Stefi; Nandi, Sumana (Oxford University Press on behalf of Royal Astronomical Society, 2024-06)
    Identifying methods to discover dual active galactic nucleus (AGN) has proven to be challenging. Several indirect tracers have been explored in the literature, including X/S-shaped radio morphologies and double-peaked (DP) ...
  • Equator to Pole Solar Chromospheric Differential Rotation Using Ca-K Features Derived from Kodaikanal Data 
    Kharayat, Hema; Singh, J; Priyal, M; Ravindra, B (American Astronomical Society, 2024-06-20)
    Differential rotation is one of the basic characteristics of the Sun, and it plays an important role in generating the magnetic fields and its activities. We investigated rotation rate using chromospheric features such ...
  • A 1 bit Raw Voltage-recording System for Dedicated Observations of Transients at Low Radio Frequencies 
    Bane Kshitij, Suhas Trupti; Barve, Indrajit V; Gireesh, G. V. S; Kathiravan, C; Ramesh, R (American Astronomical Society, 2024-06)
    Recently we had reported commissioning of a prototype for pulsar observations at low radio frequencies (<100 MHz) using log-periodic dipole antennas in the Gauribidanur Radio Observatory (≈77°E, 14°N) near Bangalore in ...
  • CMEs evolve in the interplanetary medium to double their predicted geo-effectiveness 
    Soni, Shirsh Lata; Maharana, Anwesha; Guerrero, Antonio; Mishra, Wageesh; Poedts, Stefaan; Thampi, Smitha (EDP Sciences, 2024-06)
    We explore the impact of interactions between coronal mass ejections (CMEs) – known as CME–CME interactions – on Earth using remote-sensing and in situ observations and estimate the amplification of the geo-effectiveness ...
  • An Assessment of Solar Cycle 25 progress through observation of SRBs and associated Geomagnetic Storms 
    Ndacyayisenga, Theogene; Uwamahoro, Jean; Sasikumar Raja, K; Uwamahoro, Jean Claude; Kwisanga, Christian; Monstein, Christian (Elsevier B.V, 2024-06-15)
    Geomagnetic storms are severe aspects of Space Weather. They originate due to solar transient emissions such as coronal mass ejections (CMEs), whose energetic materials propagate in the Interplanetary medium and are coupled ...

Search DSpace

Browse

My Account