Results 131 to 140 of about 622,972 (290)

Latest Evolution of the X-Ray Remnant of SN 1987A: Beyond the Inner Ring

The Astrophysical Journal
Based on our Chandra imaging-spectroscopic observations, we present the latest evolution of the X-ray remnant of SN 1987A. Recent changes in the electron temperatures and volume emission measures suggest that the blast wave in SN 1987A is moving out of ...
Aravind P. Ravi, Sangwook Park, Svetozar A. Zhekov, Salvatore Orlando, Marco Miceli, Kari A. Frank, Patrick S. Broos, David N. Burrows   +7 more
doaj   +1 more source

Early-type galaxies with core collapse supernovae

, 2008
It is widely accepted that the progenitors of core collapse SNe are young massive stars and therefore their host galaxies are mostly spiral or irregular galaxies dominated by a young stellar population.
A. A. Hakobyan, A. R. Petrosian, Adelman-McCarthy, Andreon, B. McLean, Barbon, Bartunov, Caldwell, Cappellaro, Carollo, Condon, Coziol, Cutri, D. Kunth, da Costa, de Carvalho, Della Valle, Falcke, Filippenko, Filippenko, Filippenko, Filippenko, Filippenko, Filippenko, Filippenko, Filippenko, Foley, Foley, Fricke, Gallagher, Gavazzi, Goad, Green, Hamuy, Hau, Helmboldt, Hendry, Hickson, Huchra, Huchra, Huchra, Huchtmeier, Jha, Kandalyan, Karachentsev, Karachentsev, Karachentseva, Karachentseva, Kauffmann, Kennicutt, Larkin, Lauer, Leonard, Li, Li, M. Turatto, Mannucci, Matheson, Matheson, Mauch, Maund, Maza, McDermid, Meusinger, Meyer, Michard, Mitronova, Modjaz, Modjaz, Moellenhoff, Naim, Navasardyan, Noordermeer, Ofek, Pastorello, Pastorello, Paturel, Petrosian, Petrosian, Petrosian, Puckett, R. Barbon, R. J. Allen, Ravindranath, Rosa-González, Ryan-Weber, Shi, Smith, Sulentic, Taubenberger, Theureau, van den Bergh, van den Bergh, van den Bergh, van den Bergh, van Dyk, van Dyk, van Dyk, Verdes-Montenegro, Wiklind, Wong, Woosley, Woosley   +102 more
core   +3 more sources

Halide‐Dependent Photoluminescence and Heavy‐Atom Effects in Low‐Melting Organic–Inorganic Manganese Halides

Advanced Functional Materials, EarlyView.
Two pyridinium‐based ionic liquid templated hybrid manganese halides, (C4Py)2[MnCl4] and (C4Py)2[MnBr4], display similar bulk structures but show significantly different photoluminescence behaviors due to the bromine heavy‐atom effect. Their stable local Mn environments remain intact even in the molten state, allowing applications such as luminescence ...
Biswajit Bhattacharyya, Christian Balischewski, Jiyong Kim, Tiago Duarte, Lianshe Fu, Rute A.S. Ferreira, Alkit Beqiraj, Iuliia Mikulska, Diego Gianolio, Eric Sperlich, Felix Stete, Wouter Koopman, Christina Günter, Katlen Brennenstuhl, Daniel Van Opdenbosch, Cordt Zollfrank, Armin Wedel, Beth J. Murray, Małgorzata Swadźba‐Kwaśny, Tillmann Klamroth, Michael U. Kumke, Verónica de Zea Bermudez, Andreas Taubert   +22 more
wiley   +1 more source

44Ti and 56Ni in core-collapse supernovae [PDF]

, 2008
We investigate the physical conditions where 44Ti and 56Ni are created in core-collapse supernovae. In this preliminary work we use a series of post-processing network calculations with parametrized expansion profiles that are representative of the wide ...
Bennett, Michael, Diehl, Steven, Fryer, Christopher L., Herwig, Falk, Hirschi, Raphael, Hungerford, Aimee, Magkotsios, Georgios, Pignatari, Marco, Rockefeller, Gabriel, Timmes, Francis X., Wiescher, Michael, Young, Patrick   +11 more
core   +2 more sources

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

Advanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar, Xuen J Ng, Lukas Lechel, Ashish Chand Rajwar, Hendrik Bargel, Abhishek A. Jalan   +5 more
wiley   +1 more source

A Core-collapse Supernova Neutrino Parameterization with Enhanced Physical Interpretability

The Astrophysical Journal Supplement Series
We introduce a novel parameterization of supernova neutrino energy spectra with a clear physical motivation. Its central parameter, τ ( t ), quantifies the characteristic thermal-diffusion area during the explosion.
Haihao Shi, Zhenyang Huang, Junda Zhou, Guoliang Lü, Xuefei Chen   +4 more
doaj   +1 more source

Speckle‐Engineered Upconversion Amplification in Nanoemulsion‐Templated Hydrogel Microdomes

Advanced Functional Materials, EarlyView.
Nanoemulsion‐confined PEGDA microdomes generate speckle‐like excitation fields that strongly amplify upconversion luminescence upon dehydration, enabling filter‐free visible readout with reversible on–off switching. DMD‐based lithography yields scalable, shape‐programmable arrays for moisture‐responsive displays and optical encryption.
Chaeyeong Ryu, Byungcheon Yoo, Seunghun Lee, Hyungyo Jeong, Sanggyun Jeong, Heesu Cho, Jongwon Oh, Dahye Baek, Jongkyu Kim, Yubin Lee, Eunsu Gu, Dong‐Hwan Kim, Jung‐Hoon Park, Jiseok Lee   +13 more
wiley   +1 more source

Critical Condition of Core-collapse Supernovae. I. One-dimensional Models

The Astrophysical Journal
When the core of a massive star collapses, neutrino heating can energize the stalled accretion shock, leading to a successful supernova. The critical condition that characterizes the transition from accretion to explosion is a central topic of study and ...
David Pochik, Todd A. Thompson
doaj   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Bioactive Conductive Ti3C2Tx‐Ce Hydrogel Facilitates Spinal Cord Injury Repair Through ROS Scavenging and Mitochondrial Regulation

Advanced Functional Materials, EarlyView.
Bioactive conductive Ti3C2Tx‐Ce hydrogels with with scavenging ROS and alleviating neuronal mitochondrial dysfunction are exploited for SCI treatment. This functionality is attributed to interfacial activation modification of Ti3C2Tx with Ce3+ ions to in‐situ form Ce(OH)x‐mediated protective layer, which is beneficial to enabling stable intracellular ...
Weikang Wang, Qing Liu, Ang Lv, Yabin Lin, Jiawei Chen, Ning Ding, Chunlei Zhang, Shuai Zhou, Bo Yuan, Weiwei Zhao, Liming Li, Luping Zhang, Fei Huang   +12 more
wiley   +1 more source