Results 131 to 140 of about 106,540 (272)
Superluminous Supernovae [PDF]
Proceedings of the International Astronomical Union, 2011 AbstractNot long ago the sample of well studied supernovae, which were gathered mostly through targeted surveys, was populated exclusively by events with absolute peak magnitudes fainter than about −20. Modern searches that select supernovae not just from massive hosts but from dwarfs as well have produced a new census with a surprising difference: a ...
openaire +3 more sources
Red Supergiants as Supernova Progenitors
GalaxiesThe inevitable fate of massive stars in the initial mass range of ≈8–30M⊙ in the red supergiant (RSG) phase is a core-collapse supernova (SN) explosion, although some stars may collapse directly to a black hole.
Schuyler D. Van Dyk
doaj +1 more source
Explosive nucleosynthesis and beyond: Energy generation in supernovae from massive progenitors [PDF]
EPJ Web of ConferencesMassive stars (initial mass ≳10M⊙, where M⊙ is the mass of the Sun) end their life through violent explosions known as core-collapse supernovae, which are supposed to be among the brightest events of the universe.
Roy Rupak
doaj +1 more source
Chemistry – A European Journal, Volume 31, Issue 45, August 13, 2025.A heavy‐atom free BODIPY photosensitizer localizing in the endoplasmic reticulum that efficiently generates singlet‐oxygen causing cell death upon light activation. Abstract The organelle‐localized photodynamic therapy (PDT) has become a promising strategy for efficient cancer treatment. The photogeneration of reactive oxygen species in the endoplasmic
Karolina Wrochna +10 more
wiley +1 more source
Organocatalytic C─O Bond Cleavage and Asymmetric Transformations via [1,3]‐Sigmatropic Rearrangement
Advanced Science, Volume 12, Issue 29, August 7, 2025.A direct asymmetric strategy for fulfilling the functional group transfer by aryl ether cleavage and migration is developed, representing the first Brønsted base‐catalyzed asymmetric [1,3]‐sigmatropic rearrangement reaction. The resulting chiral benzofuran products generated through this strategy exhibit significant 3D‐dimensionality and demonstrate ...
Lei Peng +7 more
wiley +1 more source
Science, 2007 Analysis of the polarization of light from supernovae can reveal the shape and distribution of matter ejected from exploding stars. Here we review the young field of Type Ia supernova spectropolarimetry and critically evaluate, and place in context, the recent work of Wang et al.
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Effects of initial axion production and photon--axion oscillation on type Ia supernova dimming
, 2002 Recently, Csaki, Kaloper and Terning (CKT) suggested that axion-photon oscillation in the intergalactic medium can explain the observed dimming of distant type Ia supernovae.
Adler +30 more
core +1 more source
ChemPlusChem, Volume 90, Issue 8, August 2025.Biscyclometalated platinum(II) complex bearing a persistent radical is reported. The complex possesses a doublet emission excited state (D2) with a short excited state lifetime at room temperature and a long excited triplet (T1) excited state lifetime at 77 K.
Sandhya Verma +6 more
wiley +1 more source
The absolute infrared magnitudes of type Ia supernovae
, 2000 The absolute luminosities and homogeneity of early-time infrared (IR) light curves of type Ia supernovae are examined. Eight supernovae are considered.
Branch D. +40 more
core +2 more sources