IIAP Publications: Recent submissions

  • Multiwavelength Observations of Multiple Eruptions of the Recurrent Nova M31N 2008-12a 
    Basu, Judhajeet; Pavana, M; Anupama, G. C; Barway, Sudhanshu; Singh, Kulinder Pal; Swain, Vishwajeet; Srivastav, Shubham; Kumar, Harsh; Bhalerao, Varun; Sonith, L. S; Selvakumar, G (American Astronomical Society, 2024-05-01)
    We report the optical, UV, and soft X-ray observations of the 2017–2022 eruptions of the recurrent nova M31N 2008-12a. We find a cusp feature in the r¢- and i¢-band light curves close to the peak, which could be related ...
  • Exploring NGC 2345: A Comprehensive Study of a Young Open Cluster through Photometric and Kinematic Analysis 
    Belwal, Kuldeep; Bisht, D; Bisht, Mohit Singh; Rangwal, Geeta; Raj, Ashish; Dattatrey, Arvind K; Yadav, R. K. S; Bhatt, B. C (American Astronomical Society, 2024-05-01)
    We conducted a photometric and kinematic analysis of the young open cluster NGC 2345 using CCD UBV data from 2 m Himalayan Chandra Telescope, Gaia Data Release 3, Two Micron All-Sky Survey, and the Photometric All-Sky ...
  • Solar Soft X-ray Irradiance Variability III: Magnetic Field Variations of Coronal X-ray Features 
    Kariyappa, R; Adithya, H. N; Masuda, Satoshi; Kusano, Kanya; Imada, Shinsuke; Zender, Joe; Dame, Luc; DeLuca, Edward; Weber, Mark; Matsumoto, Takuma (Springer Nature B.V., 2024-04)
    The magnetic field changes the radiative output of the Sun and is the main source for all the solar surface features. To study the role of the underlying photospheric magnetic field in relation to emission features observed ...
  • Spectroscopic Investigation of Nebular Gas (SING): instrument design, assembly and calibration 
    Bharat Chandra, P; Binukumar, G; Shubham Jankiram, Ghatul; Jain, Shubhangi; Sriram, S; Mahesh Babu, S; Mohan, Rekhesh; Safonova, M; Murthy, J; Sachkov, Mikhail (Springer Nature, 2024-06)
    The Spectroscopic Investigation of Nebular Gas (SING) is a near-ultraviolet (NUV) low-resolution spectrograph payload designed to operate in the NUV range, 1400 Å – 2700 Å, from a stable space platform. SING telescope ...
  • Minkowski functionals for composite smooth random fields 
    Pravabati, C; Fazlu, Rahman (American Physical Society, 2024-04-15)
    Minkowski functionals quantify the morphology of smooth random fields. They are widely used to probe statistical properties of cosmological fields. Analytic formulas for ensemble expectations of Minkowski functionals are ...
  • Forty Hypervelocity Stars from Gaia DR3 
    Parthasarathy, M (American Astronomical Society, 2024-04)
    Forty hypervelocity stars (HVS) are detected from a search for HVS in Gaia DR3 data whose G magnitudes are less than 17.0 and radial velocities are more +400 km s‑1. The Gaia DR3 astrophysical parameters and spectra indicate ...
  • A Selection of 23 Bright Hypervelocity Gaia DR3 Stars 
    Parthasarathy, M (American Astronomical Society, 2024-03)
    From the Gaia DR3 data twenty three bright hypervelocity stars that have Tycho catalogue numbers are presented. All these stars are of high galactic latitude and some may be galactic halo stars. All of them have accurate ...
  • A chemodynamical analysis of bright metal-poor stars from the HESP-GOMPA survey – indications of a non-prevailing site for light r-process elements 
    Bandyopadhyay, A; Beers, Timothy C; Ezzeddine, Rana; Sivarani, T; Nayak, Prasanta K; Pandey, Jeewan C; Saraf, Pallavi; Susmitha, A (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)
    We present a comprehensive analysis of the detailed chemical abundances for a sample of 11 metal-poor, very metal-poor, and extremely metal-poor stars ([Fe/H] = −1.65 to [Fe/H] = −3.0) as part of the HESP-GOMPA (Galactic ...
  • Multiwavelength spectral modelling of the candidate neutrino blazar PKS 0735+178 
    Bharathan, Athira M; Stalin, C. S; Sahayanathan, S; Bhattacharyya, Subir; Mathew, Blesson (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)
    The BL Lac object PKS 0735+178 was in its historic γ-ray brightness state during 2021 December. This period also coincides with the detection of a neutrino event IC 211208A, which was localized close to the vicinity of PKS ...
  • A comparative study of dust grain polarization efficiencies in the interstellar and intracluster mediums towards anticentre galaxy 
    Bijas, N; Eswaraiah, Chakali; Sandhyarani, Panigrahy; Jose, Jessy; Maheswar, G (Oxford University Press on behalf of Royal Astronomical Society, 2024-04)
    Dust polarization observations at optical wavelengths help understand the dust grain properties and trace the plane-of-the-sky component of the magnetic field. In this study, we make use of published optical polarization ...
  • CatNorth: An Improved Gaia DR3 Quasar Candidate Catalog with Pan-STARRS1 and CatWISE 
    Fu, Yuming; Wu, Xue-Bing; Li, Yifan; Pang, Yuxuan; Joshi, Ravi; Zhang, Shuo; Wang, Qiyue; Yang, Jing; Ng, FanLam; Liu, Xingjian; Qiu, Yu; Zhu, Rui; Wang, Huimei; Wolf, Christian; Zhang, Yanxia; Huo, Zhi-Ying; Ai, Y. L; Ma, Qinchun; Feng, Xiaotong; Bouwens, R. J (American Astronomical Society, 2024-04)
    A complete and pure sample of quasars with accurate redshifts is crucial for quasar studies and cosmology. In this paper, we present CatNorth, an improved Gaia Data Release 3 (Gaia DR3) quasar candidate catalog with more ...
  • The Great North American Eclipse 2024 
    Kapoor, R. C. (NIScPR-CSIR, 2024-05)
    THE excitement about the total solar eclipse of 8 April 2024 in North America is unprecedented. Years before it was to pass, astronomers, educationists, students, the administrations and the local communities, and ...
  • Cloud–Cloud Collision and Cluster Formation in the W5-NW Complex 
    Issac, Namitha; Saha, Anindya; Choudhary, Saanika; Chaudhary, Aakash; Tej, Anandmayee; Liu, Hong-Li; Liu, Tie; Maheswar, G (American Astronomical Society, 2024-04-01)
    We present a detailed structural and gas kinematic study of the star-forming complex W5-NW. A cloud–cloud collision scenario unravels with evidence of collision-induced star and cluster formation. Various signatures of ...
  • Multi-wavelength photometric study of five contact binaries in the field of globular cluster M4 
    Devarapalli, Shanti Priya; Jagirdar, Rukmini; Pothuneni, Ravi Raja; Amente, Dereje Wakgari; Thomas, Vineet; Safonova, M; Brosch, Noah (Elsevier B.V, 2024-04)
    Binary stars are believed to be key determinants in understanding globular cluster evolution. In this paper, we present the Multi-band photometric analyses of five variables in the nearest galactic globular cluster M4, ...
  • SN 2020udy: A New Piece of the Homogeneous Bright Group in the Diverse Iax Subclass 
    Singh, Mridweeka; Sahu, D. K; Barna, Barnabas; Gangopadhyay, Anjasha; Dastidar, Raya; Teja, Rishabh Singh; Misra, Kuntal; Howell, D. Andrew; Wang, Xiaofeng; Mo, Jun; Yan, Shengyu; Hiramatsu, Daichi; Pellegrino, Craig; Anupama, G. C; Joshi, Arti; Bostroem, K. Azalee; Burke, Jamison; McCully, Curtis; Rama Subramanian, V; Li, Gaici; Xi, Gaobo; Li, Xin; Li, Zhitong; Srivastav, Shubham; Im, Hyobin; Dutta, Anirban (American Astronomical Society, 2024-04-10)
    We present optical observations and analysis of the bright type Iax supernova SN 2020udy hosted by NGC 0812. The evolution of the light curve of SN 2020udy is similar to that of other bright type Iax SNe. Analytical modeling ...
  • Disentangling the association of PAH molecules with star formation: Insights from the James Webb Space Telescope and from the UltraViolet Imaging Telescope 
    Ujjwal, Krishnan; Kartha, Sreeja S; Akhil, Krishna R; Mathew, Blesson; Subramanian, S; Sudheesh, T. P; Thomas, Robin (EDP Sciences, 2024-04)
    Context. Polycyclic aromatic hydrocarbons (PAHs) are ubiquitous complex molecules in the interstellar medium and are used as an indirect indicator of star formation. On the other hand, the ultraviolet (UV) emission from ...
  • Calibration of VELC detectors on-board Aditya-L1 mission 
    Mishra, Shalabh; Sasikumar Raja, K; Sanal Krishnan, V. U; Venkata Suresh, Narra; Hegde, Bhavana; Utkarsha, D; Priyal, M; Pawan, Kumar; Natarajan, V; Prasad, B. R; Singh, J; Kamath, P. U; Kathiravan, S; Vishnu, T; Suresha; Savarimuthu, P; Desai, Jalshri H; Kumaran, Rajiv; Sagar, Shiv; Kumar, Sumit; Bamrah, Inderjeet Singh; Amit Kumar (Springer Nature, 2024-04)
    Aditya-L1 is the first Indian space mission to explore the Sun and solar atmosphere with seven multi-wavelength payloads, with Visible Emission Line Coronagraph (VELC) being the prime payload. It is an internally occulted ...
  • Exploring Neutral Hydrogen in Radio MOlecular Hydrogen Emission Galaxies (MOHEGs) and Prospects with the SKA 
    Wagh, Sai; Pandey-Pommier, Mamta; Roy, Nirupam; Rashid, Md; Marcowith, Alexandre; Muthumariappan, C; Ramya, S; Roy, Subhashis; Guiderdoni, Bruno (American Astronomical Society, 2024-03-10)
    Empirical studies of cold gas content are essential for comprehending the star formation activities and evolution in galaxies. However, it is not straightforward to understand these processes because they depend on various ...
  • Observations of magnetic reconnection in the deep solar atmosphere in the Hε line 
    Rouppe van der Voort, Luc H. M; Joshi, Jayant; Krikova, Kilian (EDP Sciences, 2024-03)
    Context. Magnetic reconnection in the deep solar atmosphere can give rise to enhanced emission in the Balmer hydrogen lines, a phenomenon known as Ellerman bombs (EBs). It is most common to observe EBs in the Hα and Hβ ...
  • Multithermal apparent damping of slow waves due to strands with a Gaussian temperature distribution 
    Van Doorsselaere, T; Krishna Prasad, S; Pant, V; Banerjee, D; Hood, A (EDP Sciences, 2024-03)
    Context. Slow waves in solar coronal loops are strongly damped, but the current theory of damping by thermal conduction cannot explain some observational features. Aims. We investigated the propagation of slow waves in a ...

Search DSpace


Browse

My Account