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  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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, ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Wojnar, Aneta; Kalita, Surajit; Sarmah, Lupamudra (Elsevier B.V, 2024-03)
    There are currently two open questions in white dwarf physics: why are massive dwarfs observed less often in astronomical surveys, and why have not any super-Chandrasekhar white dwarfs been found despite the discovery of ...
  • Roy, Rupak; Mandal, Samir; Sahu, D. K; Anupama, G. C; Nandi, Sumana; Kumar, Brijesh (Oxford University Press on behalf of Royal Astronomical Society., 2024-03)
    ASASSN-20hx, a.k.a AT2020ohl, is an ambiguous nuclear transient, which was discovered in the nearby galaxy NGC6297 by the All-Sky Automated Survey for Supernovae. We have investigated the evolution of AT2020ohl using a ...

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