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Browsing by Subject "Photometry"

Browsing by Subject "Photometry"

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  • Bridging between Type IIb and Ib Supernovae: SN IIb 2022crv with a Very Thin Hydrogen Envelope 
    Gangopadhyay, Anjasha; Maeda, Keiichi; Singh, Avinash; A. J, Nayana; Nakaoka, Tatsuya; Kawabata, Koji S; Taguchi, Kenta; Singh, Mridweeka; Chandra, Poonam; Ryder, Stuart D; Dastidar, Raya; Yamanaka, Masayuki; Kawabata, Miho; Alsaberi, Rami Z. E; Dukiya, Naveen; Singh Teja, Rishabh; Ailawadhi, Bhavya; Dutta, Anirban; Sahu, D. K.; Moriya, Takashi J; Misra, Kuntal; Tanaka, Masaomi; Chevalier, Roger; Tominaga, Nozomu; Uno, Kohki; Imazawa, Ryo; Hamada, Taisei; Hori, Tomoya; Isogai, Keisuke (The Astrophysical Journal, 2023-11)
    We present optical, near-infrared, and radio observations of supernova (SN) SN IIb 2022crv. We show that it retained a very thin H envelope and transitioned from an SN IIb to an SN Ib; prominent Hα seen in the pre-maximum ...
  • Interference filter photometry of weak emission lines in cq cephei 
    Bappu, M. K. Vainu; Sinvhal, S. D. (Vincent Baxter Press , Oxford, 1959)
  • Investigating Stellar Variability in the Open Cluster Region NGC 381 
    Maurya, Jayanand; Joshi, Y. C.; Panchal, A.; Gour, A. S. (Astronomical Journal, 2023-03)
    We study variable stars in the field of the open cluster NGC 381 using photometric data observed over 27 nights and identify a total of 57 variable stars, six of which are member stars. The variable stars are classified ...
  • Long-term Photometric and Low-resolution Spectroscopic Analysis of Five Contact Binaries 
    Panchal, A.; Joshi, Y. C.; Cat, Peter De; Tiwari, S. N. (The Astrophysical Journal, 2022-03)
    A photometric and spectroscopic investigation is performed on five W Ursae Majoris eclipsing binaries J015818.6 +260247 (hereinafter as J0158b), J073248.4+405538 (hereinafter as J0732), J101330.8+494846 (hereinafter ...
  • Nature of intranight optical variability of BL Lacertae 
    Gaur, H., et al.; Gupta, A. C. (Oxford, 2014-01-21)
    We present the results of extensive multiband intranight optical monitoring of BL Lacertae during 2010–2012. BL Lacertae was very active in this period and showed intense variability in almost all wavelengths. We extensively ...

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