Results 51 to 60 of about 12,186 (217)

Light-curve Structure and Hα Line Formation in the Tidal Disruption Event AT 2019azh

The Astrophysical Journal
AT 2019azh is a H+He tidal disruption event (TDE) with one of the most extensive ultraviolet and optical data sets available to date. We present our photometric and spectroscopic observations of this event starting several weeks before and out to ...
Sara Faris, Iair Arcavi, Lydia Makrygianni, Daichi Hiramatsu, Giacomo Terreran, Joseph Farah, D. Andrew Howell, Curtis McCully, Megan Newsome, Estefania Padilla Gonzalez, Craig Pellegrino, K. Azalee Bostroem, Wiam Abojanb, Marco C. Lam, Lina Tomasella, Thomas G. Brink, Alexei V. Filippenko, K. Decker French, Peter Clark, Or Graur, Giorgos Leloudas, Mariusz Gromadzki, Joseph P. Anderson, Matt Nicholl, Claudia P. Gutiérrez, Erkki Kankare, Cosimo Inserra, Lluís Galbany, Thomas Reynolds, Seppo Mattila, Teppo Heikkilä, Yanan Wang, Francesca Onori, Thomas Wevers, Eric R. Coughlin, Panos Charalampopoulos, Joel Johansson   +36 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

The Light Curve of Wind-reprocessed Tidal Disruption Events

The Astrophysical Journal Letters
The source of the optical/UV emission in tidal disruption events (TDEs) remains an enduring question in the field. Connecting the observed emission to the source is critical for both our understanding of these transients and for using TDEs to study the ...
Brenna Mockler, David Khatami, Daniel Kasen, Xiaoshan Huang, Anthony L. Piro   +4 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

Advanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti, Kubra Kocak, Andrea Michel, Enrico Cavarzerani, Ali Raza, Petr Rohzin, Nouha Loudhaief, Saimir Frroku, Nicolò Baldovin, Hazrat Bilal, Alvise Perosa, Maurizio Selva, Flavio Rizzolio, Luca Sbuelz, Sabrina Tamburini, Domenico De Fazio, Giovanni Antonio Salvatore   +16 more
wiley   +1 more source

ULTRASAT: A Wide-field Time-domain UV Space Telescope

The Astrophysical Journal
The Ultraviolet Transient Astronomy Satellite (ULTRASAT) is scheduled to be launched to geostationary orbit in 2027. It will carry a telescope with an unprecedentedly large field of view (204 deg ^2 ) and near-ultraviolet (NUV; 230–290 nm) sensitivity ...
Y. Shvartzvald, E. Waxman, A. Gal-Yam, E. O. Ofek, S. Ben-Ami, D. Berge, M. Kowalski, R. Bühler, S. Worm, J. E. Rhoads, I. Arcavi, D. Maoz, D. Polishook, N. Stone, B. Trakhtenbrot, M. Ackermann, O. Aharonson, O. Birnholtz, D. Chelouche, D. Guetta, N. Hallakoun, A. Horesh, D. Kushnir, T. Mazeh, J. Nordin, A. Ofir, S. Ohm, D. Parsons, A. Pe’er, H. B. Perets, V. Perdelwitz, D. Poznanski, I. Sadeh, I. Sagiv, S. Shahaf, M. Soumagnac, L. Tal-Or, J. Van Santen, B. Zackay, O. Guttman, P. Rekhi, A. Townsend, A. Weinstein, I. Wold   +43 more
doaj   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

The Optical to X-Ray Luminosity and Spectrum of Supernova Wind Breakouts

The Astrophysical Journal
Observations indicate that an optically thick circumstellar medium (CSM) at radii of 10 ^14 –10 ^15 cm around Type II core-collapse supernova (SN) progenitors is common (and may be present in other types of massive star explosions).
Tal Wasserman, Nir Sapir, Peter Szabo, Eli Waxman   +3 more
doaj   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Fast X-Ray Transients Produced by Off-axis Jet Cocoons from Long Gamma-Ray Bursts

The Astrophysical Journal Letters
Fast X-ray transients (FXTs) have been detected for over a decade, yet their origins are still enigmatic. The observed association between FXTs and broad-lined Type Ic supernovae (SNe Ic-BL) suggests that some may share the same progenitor with long ...
Jian-He Zheng, Wenbin Lu
doaj   +1 more source

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source