Results 61 to 70 of about 622,543 (345)

Infant Core-collapse Supernovae with Circumstellar Interactions from KMTNet. I. Luminous Transitional Case of KSP-SN-2022c

The Astrophysical Journal
We present BVi multiband high-cadence observations of a Type II supernova (SN) KSP-SN-2022c from a star-forming galaxy at z ≃ 0.041 from its infant to nebular phase. Early light-curve fitting with a single power law is consistent with the first detection
Nan Jiang, Dae-Sik Moon, Yuan Qi Ni, Maria R. Drout, Hong Soo Park, Santiago González-Gaitán, Sang Chul Kim, Youngdae Lee, Ernest Chang   +8 more
doaj   +1 more source

Neutrino nucleosynthesis in core-collapse Supernova explosions

EPJ Web of Conferences, 2016
The neutrino-induced nucleosynthesis (ν process) in supernova explosions of massive stars of solar metallicity with initial main sequence masses between 15 and 40 M⊙ has been studied.
Sieverding A., Huther L., Martínez-Pinedo G., Langanke K., Heger A.   +4 more
doaj   +1 more source

Spectropolarimetry of Core-Collapse Supernovae [PDF]

, 2004
We briefly review the young field of spectropolarimetry of core-collapse supernovae (SNe). Spectropolarimetry provides the only direct known probe of early-time supernova (SN) geometry.
Filippenko, Alexei V., Leonard, Douglas C.   +1 more
core   +1 more source

Critical Conditions for Core-Collapse Supernovae [PDF]

Physical Review Letters, 2012
The explosion of a core-collapse supernova can be approximated by the breakdown of steady-state solutions for accretion onto a proto-neutron star (PNS). We analytically show that as the neutrino luminosity exceeds a critical value L_c, the neutrinosphere pressure exceeds the hydrostatic limit even for an optimal shock radius R.
Keshet, Uri, Balberg, Shmuel
openaire   +3 more sources

Basroparib inhibits YAP‐driven cancers by stabilizing angiomotin

Molecular Oncology, EarlyView.
Basroparib, a selective tankyrase inhibitor, suppresses Wnt signaling and attenuates YAP‐driven oncogenic programs by stabilizing angiomotin. It promotes AMOT–YAP complex formation, enforces cytoplasmic YAP sequestration, inhibits YAP/TEAD transcription, and sensitizes YAP‐active cancers, including KRAS‐mutant colorectal cancer, to MEK inhibition.
Young‐Ju Kwon, Dong Young Kim, Yuna Kim, Uk‐Il Kim, Jae‐Sung Kim   +4 more
wiley   +1 more source

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

FEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid, Rapasviranda Soiyangsuk, Maneeluck Tanadjindarat, Chayanon Peerapittayamongkol   +3 more
wiley   +1 more source

Core-collapse supernovae missed by optical surveys [PDF]

, 2012
We estimate the fraction of core-collapse supernovae (CCSNe) that remain undetected by optical SN searches due to obscuration by large amounts of dust in their host galaxies.
A. Alonso-Herrero, A. Efstathiou, Alonso-Herrero, Alonso-Herrero, Alonso-Herrero, Arcavi, Berger, Beswick, Blondin, Bond, Branch, Cappellaro, Caputi, Charmandaris, Chornock, Dahlen, Dahlen, Dudley, E. Kankare, Efstathiou, Elias-Rosa, Farrah, Freedman, G. Östlin, García-Marín, Gieren, Grogin, Grossan, Heckman, Horiuchi, J. Melinder, Jha, Kankare, Kankare, Karachentsev, Karachentsev, Kartaltepe, Kashi, Kennicutt, Kochanek, Krisciunas, Le Floc'h, Leonard, Li, Lonsdale, M. Á. Pérez-Torres, Mattila, Mattila, Mattila, Mattila, Mattila, Melinder, Michałowski, Modjaz, Monard, Neff, Newton, P. Väisänen, Pietrzyński, Prieto, Pumo, Pérez-González, Reddy, Rodney, Rujopakarn, S. Mattila, S. Ryder, Sanders, Schiminovich, Schlegel, Schmidt, Smith, Soifer, Solanes, Szczygiel, T. Dahlen, Takada-Hidai, Tsvetkov, Ulvestad, van Buren, Van Dyk, Veilleux   +81 more
core   +2 more sources

The Core-Collapse Supernova Explosion Mechanism

, 2016
The explosion mechanism of core-collapse supernovae is a long-standing problem in stellar astrophysics. We briefly outline the main contenders for a solution and review recent efforts to model core-collapse supernova explosions by means of multi ...
Müller, B.
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Turbulence in Core-collapse Supernovae

The Astrophysical Journal
It is understood in a general sense that turbulent fluid motion below the shock front in a core-collapse supernova stiffens the effective equation of state of the fluid and aids in the revival of the explosion.
David Calvert, Michael Redle, Bibek Gautam, Charles J. Stapleford, Carla Fröhlich, James P. Kneller, Matthias Liebendorfer   +6 more
doaj   +1 more source