Results 81 to 90 of about 13,120 (212)
N,N’‐Diaryl‐Sulfurdiimides are Strongly Redox Tuned
Chemistry – A European Journal, Volume 30, Issue 26, May 8, 2024.A series of 4‐ and 2,4,6‐substituted diaryl sulfur diimides induce a large dependence on redox properties, such as the one‐electron reduction CV waves shown here, that correlate linearly with the redox MO energies. One‐electron transfers are confirmed using in situ EPR spectroscopy, identifying radical anions that have longer lifetimes the more ...
Nathan D. D. Hill, René T. Boeré
wiley +1 more source
Direct Analysis of Spectra of Type Ib Supernovae [PDF]
The Astrophysical Journal, 2002 Synthetic spectra generated with the parameterized supernova synthetic-spectrum code SYNOW are compared to photospheric-phase spectra of Type Ib supernovae (SNe Ib). Although the synthetic spectra are based on many simplifying approximations, including spherical symmetry, they account well for the observed spectra.
David Branch +16 more
openaire +3 more sources
The Astrophysical Journal, 2023 We present a search for extragalactic fast blue optical transients (FBOTs) during Phase I of the Zwicky Transient Facility (ZTF). We identify 38 candidates with durations above half-maximum light 1 day < t _1/2 < 12 days, of which 28 have blue ( g − r ≲ −
Anna Y. Q. Ho +42 more
doaj +1 more source
A White Dwarf Merger Paradigm for Supernovae and Gamma-Ray Bursts
, 2003 Gamma-ray bursts can appear to be a hundred times as luminous as supernovae, but their underlying energy source(s) have remained a mystery. However, there has been evidence for some time now of an association of gamma-ray bursts with supernovae of Type ...
Middleditch, John
core +2 more sources
Aggregate, Volume 5, Issue 2, April 2024.Au18Ag26 nanoclusters are the largest Au‐Ag‐oxo nanoclusters reported to date, showcasing remarkable TADF characteristics. Strong π⋯π interactions from aromatic alkynyl ligands and O2−‐induced metal aggregation contribute to their outstanding photoluminescence.
Peng Yuan +15 more
wiley +1 more source
The Astrophysical JournalWe study a magnitude-limited sample of 36 broad-lined type Ic supernovae (SNe Ic-BL) from the Zwicky Transient Facility Bright Transient Survey (detected between 2018 March and 2021 August), which is the largest systematic study of SNe Ic-BL done in ...
Gokul P. Srinivasaragavan +37 more
doaj +1 more source
Low frequency radio and X-ray properties of core-collapse supernovae
, 2003 Radio and X-ray studies of young supernovae probe the interaction between the supernova shock waves and the surrounding medium and give clues to the nature and past of the progenitor star.
C. Fransson +11 more
core +1 more source
Aggregate, Volume 5, Issue 1, February 2024.By using a molecular organic alloys (MCAs) strategy, several MCAs are prepared through tuning the stoichiometric ratio of pyrene and fluoranthene. Multiple energy level structure and Förster Resonance Energy Transfer (FRET) endow materials with tunable emission.
Zhenhong Qi, Yu‐Juan Ma, Dongpeng Yan
wiley +1 more source
PTF 12gzk—A RAPIDLY DECLINING, HIGH-VELOCITY TYPE Ic RADIO SUPERNOVA [PDF]
The Astrophysical Journal, 2013 Only a few cases of type Ic supernovae (SNe) with high-velocity ejecta have been discovered and studied. Here we present our analysis of radio and X-ray observations of a Type Ic SN, PTF12gzk. The radio emission rapidly declined less than 10 days after explosion, suggesting SN ejecta expanding at high velocity (~0.3c). The radio data also indicate that
Horesh, Assaf +10 more
openaire +3 more sources
The Astrophysical JournalWhile about 20 type II supernova (SN II) progenitors have been identified using optical data from the Hubble Space Telescope (HST), direct detection of type Ib/Ic supernova (SN Ib/Ic) progenitors remains challenging, due to their faint optical brightness
Moo-Keon Jung, Sung-Chul Yoon
doaj +1 more source