Short-lived Circumstellar Interaction in the Low-luminosity Type IIP SN 2016bkv
نویسندگان
چکیده
منابع مشابه
Optical Signatures of Circumstellar Interaction in Type Iip Supernovae
We propose new diagnostics for circumstellar interaction in Type IIP supernovae (SNe IIP) by the detection of high velocity (HV) absorption features in Hα and He I 10830 Å lines during the photospheric stage. To demonstrate the method, we compute the ionization and excitation of H and He in supernova ejecta taking into account time-dependent effects and X-ray irradiation. We find that the inter...
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We present the spectral evolution, light curve, and corresponding interpretation for the “normal-bright” Type Ia Supernova 2005cg discovered by ROTSE-IIIc. The host is a low-luminosity (Mr = −16.75), blue galaxy with strong indications of active star formation and an environment similar to that expected for SNe Ia at high redshifts. Early-time (t ∼ −10 days) optical spectra obtained with the HE...
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I analyse peculiar properties of light curve and continua of enigmatic Ibn supernovae, including SN 2006jc, and argue in favour of the early strong circumstellar interaction. This interaction explains the high luminosity and fast flux rise of SN 1999cq, while the cool dense shell formed in shocked ejecta can explain the smooth early continuum of SN 2000er and unusual blue continuum of SN 2006jc...
متن کاملEjecta and progenitor of the low-luminosity Type IIP supernova 2003Z
Context. The origin of low-luminosity Type IIP supernovae is unclear: they have been proposed to originate either from massive (∼ 25 M⊙) or low-mass (∼ 9 M⊙) stars. Aims. We wish to determine parameters of the low-luminosity Type IIP supernova 2003Z, to estimate a mass-loss rate of the presupernova, and to recover a progenitor mass. Methods. We compute the hydrodynamic models of the supernova t...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2018
ISSN: 1538-4357
DOI: 10.3847/1538-4357/aac5f6