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Browsing Aryabhatta Research Institute of Observational Sciences by Subject "techniques: photometric"

Browsing Aryabhatta Research Institute of Observational Sciences by Subject "techniques: photometric"

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  • Characterizing Optical Variability of OJ 287 in 2016–2017 
    Gupta, Alok C. et al.; Gaur, Haritma; Pandey, A. (The Astronomical Journal, 2019-03)
    We report on a recent multiband optical photometric and polarimetric observational campaign of the blazar OJ 287 that was carried out during 2016 September–2017 December. We employed nine telescopes in Bulgaria, China, ...
  • Evidence of jet-induced optical microvariability in radio-loud narrow-line Seyfert 1 galaxies 
    Ojha, Vineet; Jha, Vivek Kumar; Chand, Hum; Singh, Veeresh (Monthly Notices of the Royal Astronomical Society, 2022-08)
    To quantify the role of radio jets for Intra-Night Optical Variability (INOV) in radio-loud narrow-line Seyfert 1 (RLNLSy1) galaxies, we report the first systematic comparative INOV study of 23 RLNLSy1 galaxies, with 15 ...
  • A global look into the world of interacting supernovae 
    Gangopadhyay, Anjasha; Misra, Kuntal, et.al.; Kawabata, Koji S; Dastidar, Raya; Singh, Mridweeka (Journal Astrophysical Astronomy, 2022-12)
    Interacting supernovae (SNe) IIn and Ibn show narrow emission lines and have always been a mysterious and unsolved genre in SNe physics. We present a comprehensive analysis of the temporal and spectroscopic behavior of ...
  • Globular Cluster UVIT Legacy Survey (GlobULeS) – I. FUV–optical colour–magnitude diagrams for eight globular clusters 
    Sahu, Snehalata ,et.al.; Singh, Gaurav; Yadav, R. K. S.; Bandyopadhyay, Avrajit (Monthly Notices of the Royal Astronomical Society, 2022-07)
    We present the first results of eight globular clusters (GCs) from the AstroSat/UVIT Legacy Survey programme GlobULeS based on the observations carried out in two far-ultraviolet (FUV) filters (F148W and F169M). The ...
  • Optical studies of a bright Type Iax supernova SN 2020rea 
    Singh, Mridweeka et.al.; Misra, Kuntal; Ailawadhi, Bhavya (Monthly Notices of the Royal Astronomical Society, 2022-12)
    We present optical photometric and spectroscopic analysis of a Type Iax supernova (SN) 2020rea situated at the brighter luminosity end of Type Iax supernovae (SNe). The light curve decline rate of SN 2020rea is m15(g) = ...
  • Photometric studies on the host galaxies of gamma-ray bursts using 3.6m Devasthal optical telescope 
    Gupta, Rahul; Pandey, Shashi Bhushan; Kumar, Amit; Ror, Amit Kumar; Aryan, Amar; Shrama, Saurabh; Misra, Kuntal; Castro- Tirado, A. J.; Tiwari, S.N. (Journal Astrophysical Astronomy, 2022-12)
    In this paper, we present multi-band photometric observations and analysis of the host galaxies for a sample of five interesting gamma-ray bursts (GRBs) observed using the 3.6m Devasthal optical telescope (DOT) and the ...
  • SN 2016iyc: a Type IIb supernova arising from a low-mass progenitor 
    Aryan, Amar; Pandey, S. B. ,et.al.; Kumar, Amit; Gupta, Rahul; Ror, Amit Kumar (Monthly Notices of the Royal Astronomical Society, 2022-12)
    In this work, photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near the faint end among the distribution of similar supernovae (SNe). ...
  • 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. (Monthly Notices of the 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 ...

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