Results 81 to 90 of about 492,459 (298)

Numerical simulation of small perturbation on an accretion disk due to the collision of a star with the disk near the black hole

, 2006
In this paper, perturbations of an accretion disk by a star orbiting around a black hole are studied. We report on a numerical experiment, which has been carried out by using a parallel-machine code originally developed by D\"{o}nmez (2004). An initially
A. Dressler, A. Dressler, A. S. Zentsova, D. Syer, E. Y. Vilkoviskij, E. Y. Vilkoviskij, F. K. Baganoff, J. A. Font, J. G. Hills, K. P. Rauch, L. Subr, L. Subr, M. C. Begelman, O. Dönmez, Orhan Dönmez, P. Artymowicz, P. B. Ivanov, P. J. Armitage, P. J. Young, R. Donat, S. Kato, S. Nayakshin, V. Karas   +22 more
core   +1 more source

Numerical relativity simulations of neutron star merger remnants using conservative mesh refinement [PDF]

, 2015
We study equal and unequal-mass neutron star mergers by means of new numerical relativity simulations in which the general relativistic hydrodynamics solver employs an algorithm that guarantees mass conservation across the refinement levels of the ...
Bernuzzi, Sebastiano, Bruegmann, Bernd, Dietrich, Tim, Ujevic, Maximiliano   +3 more
core   +3 more sources

Epilepsy‐Associated Variants of a Single SCN1A Codon Exhibit Divergent Functional Properties

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Pathogenic variants in SCN1A, which encodes the voltage‐gated sodium channel NaV1.1, are associated with multiple epilepsy syndromes exhibiting a range of clinical severity. SCN1A variants are reported in different syndromes, including Dravet syndrome, which is associated with loss‐of‐function, whereas neonatal/infantile‐onset ...
Lanie N. Liebovitz, Christopher H. Thompson, Linda C. Laux, Alfred L. George Jr.   +3 more
wiley   +1 more source

CoronaGraph Instrument Reference Stars for Exoplanets (CorGI-REx). I. Preliminary Vetting and Implications for the Roman Coronagraph and Habitable Worlds Observatory

The Astronomical Journal
The upcoming Roman Coronagraph will be the first high-contrast instrument in space capable of high-order wave front sensing and control technologies, a critical technology demonstration for the proposed Habitable Worlds Observatory (HWO) that aims to ...
Justin Hom, Schuyler G. Wolff, Catherine A. Clark, David R. Ciardi, Sarah J. Deveny, Steve B. Howell, Alexandra Z. Greenbaum, Colin Littlefield, Ramya M. Anche, Vanessa P. Bailey, Wolfgang Brandner, Gaël Chauvin, Julien H. Girard, Brian Kern, Eric Mamajek, Bertrand Mennesson, Dmitry Savransky, Karl R. Stapelfeldt, Beth A. Biller, Marah Brinjikji, Masayuki Kuzuhara, Maxwell A. Millar-Blanchaer, Toshiyuki Mizuki, Nicholas T. Schragal, Macarena C. Vega-Pallauta, Jason J. Wang, Robert J. De Rosa, Ewan S. Douglas, Bruce Macintosh, Jingwen Zhang, The Roman Coronagraph Community Participation Program   +30 more
doaj   +1 more source

Nuclear Physics with Gravitational Waves from Neutron Stars Disrupted by Black Holes

The Astrophysical Journal Letters, 2023
Gravitational waves from neutron star–black hole (NSBH) mergers that undergo tidal disruption provide a potential avenue to study the equation of state of neutron stars and hence the behavior of matter at its most extreme densities.
Teagan A. Clarke, Lani Chastain, Paul D. Lasky, Eric Thrane   +3 more
doaj   +1 more source

Continuous-wave gravitational radiation from pulsar glitch recovery

, 2010
Nonaxisymmetric, meridional circulation inside a neutron star, excited by a glitch and persisting throughout the post-glitch relaxation phase, emits gravitational radiation.
A. Melatos, Abbott, Abbott, Abbott, Abney, Adare, Adler, Alpar, Anderson, Andersson, Andersson, Bai, Benton, Bonazzola, Bondarescu, Brink, C. A. Van Eysden, Chen, Clark, Cutler, Cutler, Dodson, Donati, Easson, Greenspan, Hartnack, Haskell, Hayama, Hibschman, Hild, Hild, Jaikumar, Jaranowski, Jensen, Jones, Jones, Junk, Lai, Lattimer, Lattimer, Li, Lyne, M. F. Bennett, McCulloch, Melatos, Melatos, Melatos, Melatos, Melatos, Mendell, Munson, Nakabayashi, Nayyar, Ofek, Passamonti, Payne, Pedlosky, Peralta, Peralta, Peralta, Peralta, Peralta, Piekarewicz, Reisenegger, Sedrakian, Shemar, Sidery, Sturm, Thorne, Ushomirsky, Van Eysden, Van Eysden, Vigelius, Vretenar, Walin, Warszawski, Wong, Xu   +77 more
core   +1 more source

Gravitational waves from perturbed stars [PDF]

, 2011
22 pages, 5 figures, to appear in the Chandra Centennial issue of the Bulletin of the Astronomical Society of India, Vol. 39, (2011)
openaire   +3 more sources

Ketogenic Diet as an Epigenetic Therapy in SETD1B‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Histone lysine methyltransferases such as SETD1B regulate chromatin structure and gene transcription. Ketone bodies, including butyrate, act as histone deacetylase inhibitors. We report a 4‐year‐old boy with SETD1B‐related absence epilepsy, refractory to conventional medications, who achieved sustained > 90% seizure reduction on the Modified ...
Erica Tsang, Brian S. Gloss, Jessica P. Hayes, Andrew J. A. Holland, Manoj P. Menezes, Joceline A. Branson, Shekeeb S. Mohammad, Jingya J. Yan, Shrujna Patel, Velda X. Han, Russell C. Dale   +10 more
wiley   +1 more source

A Case Study of Low-Mass Star Formation

, 2007
This article synthesizes observational data from an extensive program aimed toward a comprehensive understanding of star formation in a low-mass star-forming molecular cloud.
Baraffe I., Bertout C., Bloemen J. B. G. M., Draper P. W., Hayashi C., Herbig G. H., Jonathan J. Swift, Kohler R., Kolmogorov A. N., Larson R. B., Leinert C., Martin E. L., Mundt R., Prantzos N., Reipurth B., Sartoretti P., Steer D. G., Stutzki J., White G. J., Wichmann R., Wichmann R., William J. Welch   +21 more
core   +1 more source

Gravitational Waves and Neutron Stars [PDF]

International Astronomical Union Colloquium, 2000
Abstract The first generation of laser-interferomteric gravitational wave observatories will make intensive searches for gravitational radiation from spinning neutron stars. Sensitivity to a number of possible sources, including the Crab pulsar, will be better than any existing observational limits, and will improve dramatically over the next decade.
openaire   +2 more sources