Results 61 to 70 of about 3,019,248 (252)

On the enhanced X-ray emission from SGR 1900+14 after the August 27th giant flare [PDF]

, 2004
We show that the giant flares of soft gamma ray repeaters (E similar to 10(44) erg) can push the inner regions of a fall-back disk out to larger radii by radiation pressure, while matter remains bound to the system for plausible parameters.
Alpar, M. Ali, Ertan, Ünal
core   +2 more sources

A natural limit on the observable periods of anomalous x-ray pulsars and soft gamma-ray repeaters [PDF]

, 2011
We investigate the dependence of the evolution of neutron stars with fallback disks on the strength of the magnetic dipole field of the star. Using the same model as employed by Ertan et al.
Alpar, M. Ali, K. Y. Ekşi, Ersin Göğüş, Ü. Ertan, M. Ali Alpar, Erkut, M. Hakan, Erkut, Mehmet Hakan, M. H. Erkut, Tomaso Belloni, Ekşi, Kazım Yavuz, Çalışkan, Şirin, Ş. Çalışkan, Ertan, Ünal, Ünal Ertan   +13 more
core   +1 more source

Conformal Coating and Transfer of 2D Nanomaterials via Dynamic Interface Engineering

Advanced Materials Interfaces, EarlyView.
This review discusses conformal coating and transfer of two‐dimensional (2D) nanomaterials with a focus on dynamic interface engineering. By actively regulating nanosheet transport and interfacial contact during film formation, recent dynamic coating strategies overcome the limitations of conventional passive approaches and enable geometry‐adaptive ...
Seungyeon Kim, Euihoon Jeong, Seoung‐Ki Lee, Sukang Bae, Tae‐Wook Kim   +4 more
wiley   +1 more source

Constraints on Hydrostatic Models of Soft Gamma-Ray Repeaters [PDF]

The Astrophysical Journal, 1995
All three soft gamma-ray repeaters (SGRs) are associated with supernova remnants; consequently, models of SGRs involving young neutron stars have attracted close attention. From the distances to the supernova remnants and the observed burst fluxes, the luminosity of a typical burst from an SGR is ~1041-1042 ergs s-1; the 1979 March 5 event from SGR ...
openaire   +1 more source

Control of Bacterial Attachment on Macroporous PDMS/Paraffin SLIPS With Varying Lubricant Viscosity

Advanced Materials Interfaces, EarlyView.
Slippery liquid‐infused porous surfaces (SLIPS) prepared from macroporous PDMS, infused with medical‐grade paraffins, were systematically investigated regarding the correlation of viscosity, surface corrugation, bulk porosity, and bacterial resistance. Substrate porosity was found to dominate lubricant stabilization and the antifouling activity.
Regina Kopecz, Sabrina A. Böer, Onur Özcan, Axel Rosenhahn   +3 more
wiley   +1 more source

The Complete Catalog of Gamma-Ray Transients Observed by GRBAlpha and VZLUSAT-2 CubeSat Missions

The Astrophysical Journal Supplement Series
We present the largest sample of gamma-ray transients observed by any CubeSat mission so far. Observations were acquired by a 1U CubeSat GRBAlpha, the smallest astrophysical space observatory, and a 3U CubeSat VZLUSAT-2.
Marianna Dafčíková, Jakub Řípa, András Pál, Norbert Werner, Michaela Ďuríšková, Yasushi Fukazawa, Martin Kolář, László Mészáros, Filip Münz, Masanori Ohno, Lea Szakszonová, Hiromitsu Takahashi, Masato Yokota, Jean-Paul Breuer, Hsiang-Kuang Chang, Balázs Csák, Vladimír Dániel, Juraj Dudáš, Marcel Frajt, Gábor Galgóczi, Peter Hanák, Filip Hroch, Chin-Ping Hu, Jan Hudec, Nikola Husáriková, Yuto Ichinohe, Jakub Kapuš, Miroslav Kasal, Martin Koleda, Róbert László, Chih-Hsun Lin, Tsung-Che Liu, Tsunefumi Mizuno, Kazuhiro Nakazawa, Hirokazu Odaka, Michal Pazderka, Aleš Povalač, Maksim Rezenov, Martin Sabol, Kaustubha Sen, Miroslav Šmelko, Petr Svoboda, Martin Topinka, Che-Chih Tsao, Tomáš Urbanec, Ivo Veřtát, Tomáš Vítek, Chih-En Wu   +47 more
doaj   +1 more source

GRBs, fireballs and precessing Gamma Jets

, 2001
Fireballs are huge isotropic explosions models widely believed to explain Gamma Ray Burst, GRBs (Piran,1999); ever-new versions consider wide beamed (10degrees) Jet explosions hitting external shells.
FARGION, Daniele, Daniele Fargion
core   +1 more source

Photoluminescence Reshaping via Structural Confinement and Local Density of Optical States Control in Ir(III)‐Doped Biodegradable Metasurfaces

Advanced Materials Technologies, EarlyView.
Phosphorescent biodegradable metasurface showing vibronic selection and spectral photoluminescence narrowing. Anti‐correlation between experimental LDOS and measured lifetimes. ABSTRACT Metasurfaces incorporating phosphorescent emitters offer a route to engineer radiative and vibronic processes beyond chemical design.
Vincenzo Caligiuri, Andrea Smeriglio, Svetlana Siprova, Olga Favale, Francesca Leone, Roberto Termine, Debora Policastro, Alessandra Crispini, Attilio Golemme, Nicolas Godbert, Iolinda Aiello, Antonio De Luca   +11 more
wiley   +1 more source

Magnetar Fireballs and Short Bursts: Curved Spacetime Lensing, Quantum Electrodynamical Effects, Spectra, Polarization, and Impulse Responses

The Astrophysical Journal Supplement Series
Magnetar short bursts (SBs) are hard X-ray transients of durations 0.01–1 s peaking at ∼10–100 keV and are prime targets for new high-energy missions and polarimeters.
Zorawar Wadiasingh, Hoa Dinh Thi, Constantinos Kalapotharakos, Kun Hu, Matthew G. Baring, Alice K. Harding, George Younes, Sebastien Guillot, Andrea Sanna, Michela Negro, Jeremy D. Schnittman, Oliver J. Roberts, Eric Burns, Chin-Ping Hu, Ersin Göğüş   +14 more
doaj   +1 more source

Magnetic deformation of magnetars for the giant flares of the soft gamma-ray repeaters [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
24 pages, 5 figures, accepted for publication in ...
openaire   +2 more sources