Results 91 to 100 of about 334 (263)

The General Trends of Recurrent Novae [PDF]

, 1995
The observational properties of recurrent novae are reviewed in this talk. The class of recurrent novae may be divided into subgroups as (a) systems with a dwarf secondary and (b) systems with a giant secondary. The primary in these systems is a white dwarf, accreting at rates ~ 10-8 M ⊙ yr-1.
openaire   +1 more source

Leveraging the Amorphous Nature of Sn–P Alloys for Improved Stability and Energy Density in Na‐Ion Batteries

Advanced Energy Materials, EarlyView.
Amorphous SnP3 undergoes homogeneous solid‐solution sodiation, delivering exceptional cycling stability and volumetric capacity. In contrast, crystalline Sn4P3 phase‐separates into Na‐Sn and Na‐P domains, causing rapid capacity decay and severe pulverization.
Yixiang Zhang, Libin Zhang, Animesh Dutta, Ziwei Ye, Ben Tang, Michel Johnson, Nafiseh Zaker, Babak Shalchi‐Amirkhiz, Changlong Chen, J. R. Dahn, Chongyin Yang   +10 more
wiley   +1 more source

Hydrodynamic Studies of the Evolution of Recurrent, Symbiotic and Dwarf Novae: the White Dwarf Components are Growing in Mass

Open Astronomy, 2012
Symbiotic binaries are systems containing white dwarfs (WDs) and red giants. Symbiotic novae are those systems in which thermonuclear eruptions occur on the WD components.
Starrfield S., Timmes F. X., Iliadis C., Hix W. R., Arnett W. D., Meakin C., Sparks W. M.   +6 more
doaj   +1 more source

Early Super Soft Source Spectra in RS Oph

Acta Polytechnica CTU Proceedings, 2015
Recent Swift X-ray monitoring campaigns of novae have revealed extreme levels of variability during the early super-softsource (SSS) phase. The first time this was observed was during the 2006 outburst of the recurrent nova RS Oph which was also ...
J.-U. Ness
doaj   +1 more source

Population balance modeling and digital design of degree of agglomeration in industrial crystallization

AIChE Journal, EarlyView.
Abstract This study presents a coupled population balance model (PBM) for describing the degree‐of‐agglomeration (DoA) in crystallization by independently tracking total particle and agglomerate number densities. Applied to an industrial active pharmaceutical ingredient, the model outperformed bridge‐counting methods and accurately captured DoA trends ...
Yung‐Shun Kang, Hemalatha Kilari, Neda Nazemifard, C. Benjamin Renner, Yihui Yang, Charles Papageorgiou, Zoltan K. Nagy   +6 more
wiley   +1 more source

Survival of the Accretion Disk in LMC Recurrent Nova 1968-12a: UV–X-Ray Case Study of the 2024 Eruption

The Astrophysical Journal
We report on UV and X-ray observations of the 2024 eruption of the recurrent nova LMCN 1968-12a, a rapidly recurring extragalactic system with a ∼4.3 yr recurrence period and a massive white dwarf. The eruption was discovered on 2024 August 1.8 by Swift,
Judhajeet Basu, G.C. Anupama, Jan-Uwe Ness, Kulinder Pal Singh, Sudhanshu Barway, Shatakshi Chamoli   +5 more
doaj   +1 more source

Neuromorphic Denoising with Fully Analog Memristive In‐Memory Computing

Advanced Intelligent Systems, EarlyView.
This article borrows the concepts of episodic memory in human brains to experimentally implement a memristor‐based neuromorphic denoising process. A homogeneous memristor processing unit is experimentally demonstrated for both temporal storage and neural network computation, imitating the synapses in the human brain.
Daijing Shi, Teng Zhang, Yuqi Li, Yaoyu Tao, Bonan Yan, Yuchao Yang   +5 more
wiley   +1 more source

Genome‐Wide Association Study of Symptom Change Following Cognitive Behavioral Therapy for Common Mental Disorders

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Cognitive behavioral therapy (CBT) is a well‐established, evidence‐based treatment for common mental disorders such as depression, anxiety disorders, and obsessive‐compulsive disorder (OCD). However, treatment outcomes vary widely, and a substantial proportion of patients do not achieve sufficient improvement.
Julia Bäckman, Olly Kravchenko, Matthew Halvorsen, Elles de Schipper, Ekaterina Ivanova, Viktor Kaldo, Nils Hentati Isacsson, Thorstein Olsen Eide, Kira D. Höffler, Manuel Mattheisen, Bjarne Hansen, Gerd Kvale, Kristen Hagen, Jan Haavik, David Mataix‐Cols, James J. Crowley, John Wallert, Christian Rück, Nordic OCD and Related Disorders Consortium (NORDiC), Julia Bäckman, Long‐Long Chen, James J. Crowley, Elles de Schipper, Diana Pascal, Jan Haavik, Kristen Hagen, Matthew W. Halvorsen, Bjarne Hansen, Kira D. Höffler, Fredrik Johansson, Anna K. Kähler, Elinor K. Karlsson, Gerd Kvale, Paul Lichtenstein, Kerstin Lindblad‐Toh, Manuel Mattheisen, David Mataix‐Cols, Kathleen Morrill, Christian Rück, Thorstein Olsen Eide, Nora I. Strom, John Wallert   +41 more
wiley   +1 more source

Transient Gamma Rays from the 2021 Outburst of the Recurrent Nova RS Ophiuchi: The Effect of Gamma-Ray Absorption

The Astrophysical Journal Letters
In 2021, RS Ophiuchi was the first nova to be detected in the very-high-energy (TeV) gamma-ray domain, directly testifying to efficient acceleration of charged particles up to at least the TeV range at the nova shock.
Vo Hong Minh Phan, Pierre Cristofari, Enrico Peretti, Vincent Tatischeff, Andrea Ciardi   +4 more
doaj   +1 more source

Orbital periods of recurrent novae

The Astrophysical Journal, 1990
The class of recurrent novae (RN) with thermonuclear runaways contains only three systems (T Pyx, U Sco, and V394 CrA), for which no orbital periods are known. This paper presents a series of photometric observations where the orbital periods for all three systems are discovered.
openaire   +1 more source