Results 91 to 100 of about 320,327 (338)

The Role of Black Hole Feedback on Size and Structural Evolution in Massive Galaxies

, 2018
We use cosmological hydrodynamical simulations to investigate the role of feedback from accreting black holes on the evolution of sizes, compactness, stellar core density and specific star-formation of massive galaxies with stellar masses of $ M_{star} >
Choi, Ena, Hirschmann, Michaela, Naab, Thorsten, Ostriker, Jeremiah P., Somerville, Rachel S.   +4 more
core   +2 more sources

Charged polytropic compact stars [PDF]

Brazilian Journal of Physics, 2004
In this work, we analyze the effect of charge in compact stars considering the limit of the maximum amount of charge they can hold. We find that the global balance of the forces allows a huge charge (~ 10^{20} Coulomb) to be present in a neutron star producing a very high electric field (~ 10^{21} V/m).
Ray, Subharthi, Malheiro, Manuel, Lemos, José P. S., Zanchin, Vilson T.   +3 more
openaire   +4 more sources

Cognitive Behavioral Therapy for Youth with Childhood‐Onset Lupus: A Randomized Clinical Trial

Arthritis Care &Research, Accepted Article.
Objective Our objective was to determine the feasibility and acceptability of the Treatment and Education Approach for Childhood‐onset Lupus (TEACH), a six‐session cognitive behavioral intervention addressing depressive, fatigue, and pain symptoms, delivered remotely to individual youth with lupus by a trained interventionist.
Natoshia R. Cunningham, Thea Senger‐Carpenter, Jocelyn Zuckerman, Michelle Adler, Mallet R. Reid, Ashley Danguecan, Luana Flores Pereira, Sarah I. Mossad, Samantha L. Ely, Khalid Abulaban, Elizabeth A. Kessler, Natalie Rosenwasser, Tamar B. Rubinstein, Ekemini A. Ogbu, Emily A. Smitherman, Alaina Miller, Taylor Abounader, Elizabeth Ross, Livie Timmerman, Dhriti Sharma, Jennifer N. Stinson, Stacy Allen, Kabita Nanda, Tala El Tal, Deborah M. Levy, Linda T. Hiraki, Hermine I. Brunner, Mathew Reeves, Steven J. Pierce, Andrea Knight   +29 more
wiley   +1 more source

Compact stars in $f(R,T)$ gravity

, 2016
In the present paper we generate a set of solutions describing the interior of a compact star under $f(R,T)$ theory of gravity which admits conformal motion.
Das, Amit, Guha, B. K., Rahaman, Farook, Ray, Saibal   +3 more
core   +1 more source

Radial Profiles of Σ*, ΣSFR, Gas Metallicity, and Their Correlations across the Galactic Mass–Size Plane

The Astrophysical Journal
We analyzed the global and resolved properties of approximately 1240 nearby star-forming galaxies from the MaNGA survey, comparing compact and extended galaxies—those with smaller and larger radii ( R _e ), respectively—at a fixed stellar mass ( M _ ...
Lin Lin, Shiyin Shen, Hassen M. Yesuf, Ye-Wei Mao, Lei Hao   +4 more
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

International Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Properties of H particle-admixed compact star

European Physical Journal C: Particles and Fields
We explore the potential manifestation of a hexaquark, the H particle, as a constituent within neutron stars. The H particle, with a quark content of uuddss, is constructed within the Chromomagnetic Interaction (CMI) framework.
Xuhao Wu, Liming Wang, Hong-Tao An, Min Ju, Hong Shen   +4 more
doaj   +1 more source

Nucleosynthesis and Kilonovae from Strange Star Mergers

Universe, 2019
In this talk, we summarize the work in progress toward a full characterization of strange star−strange star (SS−SS) mergers related to the GW/GRB/kilonova events.
J. E. Horvath, O. G. Benvenuto, E. Bauer, L. Paulucci, A. Bernardo, H. R. Viturro   +5 more
doaj   +1 more source

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

A Sample of Intermediate-Mass Star-Forming Regions: Making Stars at Mass Column Densities <1 g/cm^2

, 2010
In an effort to understand the factors that govern the transition from low- to high-mass star formation, we identify for the first time a sample of intermediate-mass star-forming regions (IM SFRs) where stars up to - but not exceeding - 8 solar masses ...
Aguirre, B. Uzpen, Barnes, C. R. Kerton, Carey, Chapin, Chini, Condon, Diaz-Miller, Emerson, Fazio, Fich, Giard, H. A. Kobulnicky, Jackson, K. Arvidsson, Kerton, Kerton, Krumholz, Kuchar, Kwok, Levine, M. J. Alexander, Pandian, Pandian, Rathborne, Rieke, Robitaille, Rohlfs, Roman-Duval, Rosolowsky, Schaerer, Simon, Simon, Warren   +34 more
core   +1 more source