Results 131 to 140 of about 49,186 (262)

Type II supernovae in low-luminosity host galaxies [PDF]

open access: green, 2018
C. P. Gutiérrez   +31 more
openalex   +1 more source

Early-phase Simultaneous Multiband Observations of the Type II Supernova SN 2024ggi with Mephisto

open access: yesThe Astrophysical Journal Letters
We present early-phase good-cadence (hour-to-day) simultaneous multiband ( ugi and vrz bands) imaging of the nearby supernova SN 2024ggi, which exploded in the nearby galaxy NGC 3621.
Xinlei Chen   +26 more
doaj   +1 more source

Progenitors and Hydrodynamics of Type II and lb Supernovae [PDF]

open access: bronze, 1996
S. E. Woosley   +2 more
openalex   +1 more source

Diversity in Hydrogen-rich Envelope Mass of Type II Supernovae. III. The Mass-loss and Evolutionary Pathways of the Red Supergiant Progenitors

open access: yesThe Astrophysical Journal
We present a comprehensive analysis of 32 type II supernovae (SNe II) with plateau phase photometry and late phase ( nebular ) spectroscopy available, aiming to bridge the gap between the surface and core of their red supergiant (RSG) progenitors.
Qiliang Fang   +4 more
doaj   +1 more source

The height distribution of type II supernovae in spiral galaxies [PDF]

open access: hybrid, 2011
Matthew Molloy   +3 more
openalex   +1 more source

Spectropolarimetry of Type II supernovae [PDF]

open access: diamond, 2023
T. Nagao   +3 more
openalex   +1 more source

ATClean: A Novel Method for Detecting Low-luminosity Transients and Application to Pre-explosion Counterparts from SN 2023ixf

open access: yesThe Astrophysical Journal
In an effort to search for faint sources of emission over arbitrary timescales, we present a novel method for analyzing forced photometry light curves in difference imaging from optical surveys. Our method “ATLAS Clean,” or ATClean, utilizes the reported
S. Rest   +18 more
doaj   +1 more source

Cosmological Distance Measurement of Twelve Nearby Supernovae IIP with ROTSE-IIIb

open access: yesThe Astrophysical Journal
We present cosmological analysis of 12 nearby ( z < 0.06) Type IIP supernovae (SNe IIP) observed with the ROTSE-IIIb telescope. To achieve precise photometry, we present a new image-differencing technique that is implemented for the first time on the ...
G. Dhungana   +16 more
doaj   +1 more source

Multiple Shells in Supernova 2023ixf Support the Jittering Jets Explosion Mechanism

open access: yesThe Astrophysical Journal Letters
Examining the photospheric time evolution of the core-collapse supernova (CCSN) SN 2023ixf from the literature, we identify two (possibly three) evolutionary time periods with constant expansion velocities, which we attribute to two (or three) ejecta ...
Noam Soker, Kobi Shiran
doaj   +1 more source

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