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Browsing by Subject "Supernovae"

Browsing by Subject "Supernovae"

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  • Analyses of hydrogen-stripped core–collapse supernovae using MOSFiT and MESA-based tools 
    Aryan, Amar; Pandey, Shashi Bhushan; Kumar, Amit; Gupta, Rahul; Ror, Amit Kumar; Tripathi, Apara; Tiwari, S.N. (Journal Astrophysical Astronomy, 2022-12)
    In this work, we employ two publicly available analysis tools to study four hydrogen (H)–stripped core–collapse supernovae (CCSNe), namely, SN 2009jf, iPTF13bvn, SN 2015ap and SN 2016bau. We use the modular open-source ...
  • 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 ...
  • Circumstellar Interaction Powers the Light Curves of Luminous Rapidly Evolving Optical Transients 
    Pellegrino, C.,et.al.; Misra, K. (The Astrophysical Journal, 2022-02)
    Rapidly evolving transients, or objects that rise and fade in brightness on timescales two to three times shorter than those of typical Type Ia or Type II supernovae (SNe), have uncertain progenitor systems and ...
  • Core-collapse supernova from a possible progenitor star of 100 M 
    Aryan, Amar; Pandey, S.B.; Yadav, A.B.; Kumar, Amit; Gupta, Rahul; Tiwari, S.N. (Journal of Astrophysics & Astronomy, 2022-06)
    In this work, we study the synthetic explosions of a massive star. We take a 100 M zero-age main-sequence (ZAMS) star and evolve it until the onset of core-collapse using MESA. Then, the resulting star model is exploded ...
  • Evolution of a Peculiar Type Ibn Supernova SN 2019wep 
    Gangopadhyay, Anjasha; Misra, Kuntal, et.al. (Astrophysical Journal, 2022-05)
    We present a high-cadence short term photometric and spectroscopic monitoring campaign of a type Ibn SN 2019wep, which is one of the rare SN Ibn after SNe 2010al and 2019uo to display signatures of flash ionization (He ...
  • GRB 120422A/SN 2012bz: Bridging the gap between low- and high-luminosity gamma-ray bursts 
    Schulze, S., et al.; Pandey, S. B. (EDP Sciences, 2014-06)
    At low redshift, a handful of gamma-ray bursts (GRBs) have been discovered with luminosities that are substantially lower (Liso ≲ 1048.5 erg s-1) than the average of more distant ones (Liso ≳ 1049.5 erg s-1). It has been ...
  • Investigating the Observational Properties of Type Ib Supernova SN 2017iro 
    Kumar, Brajesh; Singh, Avinash; Sahu, D. K.; Anupama, G. C. (The Astrophysical Journal, 2022-03)
    We report results of optical imaging and low-resolution spectroscopic monitoring of supernova (SN) 2017iro that occurred in the nearby (∼31 Mpc) galaxy NGC 5480. The He I λ5876 feature present in the earliest spectrum (−7 ...
  • Observational Properties of a Bright Type lax SN 2018cni and a Faint Type Iax SN 2020kyg 
    Singh, Mridweeka et.al.; Misra, Kuntal (The Astrophysical Journal, 2023-08)
    We present the optical photometric and spectroscopic analysis of two Type Iax supernovae (SNe), 2018cni and 2020kyg. SN 2018cni is a bright Type Iax SN (MV,peak = −17.81 ± 0.21 mag), whereas SN 2020kyg (MV,peak = −14.52 ...
  • SN 2020jfo: A Short-plateau Type II Supernova from a Low-mass Progenitor 
    Teja, Rishabh Singh,et.al.; Kumar, Brajesh (The Astrophysical Journal, 2022-05)
    We present spectroscopic and photometric observations of the Type IIP supernova, SN 2020jfo, in ultraviolet and optical wavelengths. SN 2020jfo occurred in the spiral galaxy M61 (NGC 4303), with eight observed supernovae ...
  • SN 2020sck: Deflagration in a Carbon-Oxygen White Dwarf 
    Dutta, Anirban,et.al.; Kumar, Brajesh (The Astrophysical Journal, 2022-02)
    We present optical UBVRI photometry and low-to-medium resolution spectroscopic observations of type Iax supernova SN 2020sck spanning −5.5 days to +67 days from maximum light in the B-band. From the photometric analysis ...

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