Results 101 to 110 of about 440,939 (238)

Optical-uv spectrum and proper motion of the middle-aged pulsar b1055-52

, 2010
PSRB1055-52 is a middle-aged (~535 kyr) radio, X-ray, and gamma-ray pulsar showing X-ray thermal emission from the neutron star (NS) surface. A candidate optical counterpart to PSRB1055-52 was proposed by Mignani and coworkers based on Hubble Space ...
Abdo, Apellánez, Becker, Bignami, Brinkmann, Brisken, Caraveo, Caraveo, Cordes, De Luca, de Zeeuw, G. G. Pavlov, Greiveldinger, Guillemot, Høg, Kaplan, Kargaltsev, Kargaltsev, Lasker, Lattanzi, Manchester, Manchester, Mignani, Mignani, Monet, Newton, Nota, O. Kargaltsev, Pavlov, Pavlov, Pavlov, Pavlov, Perryman, Predehl, R. P. Mignani, Roeser, Seaton, Shibanov, Skrutskie, Thompson, Vande Putte, Vaughan, Wang, Zacharias, Zacharias, Zavlin   +45 more
core   +1 more source

The distance Seidel matrix of connected graphs

AKCE International Journal of Graphs and Combinatorics
For a connected graph G, we present the concept of a new graph matrix related to its distance and Seidel matrix, called distance Seidel matrix [Formula: see text]. Suppose that the eigenvalues of [Formula: see text] be [Formula: see text] In this article,
T. Haritha, A. V. Chithra
doaj   +1 more source

Thermal Radiation from Neutron Stars: Chandra Results

, 2002
The outstanding capabilities of the Chandra X-ray observatory have greatly increased our potential to observe and analyze thermal radiation from the surfaces of neutron stars (NSs).
Pavlov, G. G., Sanwal, D., Zavlin, V. E.
core  

On the distance spectral radius of some graphs

Linear Algebra and its Applications, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

On the spectral radius and energy of the degree distance matrix of a connected graph

Open Mathematics
Let GG be a simple connected graph on nn vertices. The degree of a vertex v∈V(G)v\in V\left(G), denoted by dv{d}_{v}, is the number of edges incident with vv and the distance between any two vertices u,v∈V(G)u,v\in V\left(G), denoted by duv{d}_{uv}, is ...
Khan Zia Ullah, Hameed Abdul
doaj   +1 more source

Filtering Property Based on Ultra-Wide Stopband in Double Sector/Sectorial-Ring Stub Resonator Coupled to Plasmonic Waveguide

IEEE Photonics Journal, 2017
A double sector or sectorial-ring stub resonator coupled to a plasmonic waveguide is proposed and investigated. This resonator is built with two same stubs that are symmetrically arranged together, which has the advantages of realizing asymmetrical ...
Mingfei Zheng, Hongjian Li, Hui Xu, Zhihui He, Zhiquan Chen, Mingzhuo Zhao   +5 more
doaj   +1 more source

Distance spectral radius of a tree with given diameter [PDF]

, 2013
Guanglong Yu, Shu-Guang Guo, Mingqing Zhai   +2 more
openalex   +1 more source

Revisiting Physical Parameters of the Benchmark Brown Dwarf LHS 6343 C through a Hubble Space Telescope/WFC3 Secondary-eclipse Observation

The Astrophysical Journal
The LHS 6343 system consists of a resolved M-dwarf binary with an evolved, negligibly irradiated brown dwarf (BD), LHS 6343 C, orbiting the primary star.
William Frost, Loïc Albert, René Doyon, Jonathan Gagné, Benjamin T. Montet, Clémence Fontanive, Étienne Artigau, John Asher Johnson, Billy Edwards, Björn Benneke   +9 more
doaj   +1 more source

(Distance) signless Laplacian spectral radius of graphs with fixed fractional matching number [PDF]

, 2023
Chang Caibing, Yan Liu
openalex   +1 more source

The effect of a graft transformation on distance signless Laplacian spectral radius of the graphs [PDF]

, 2019
Dandan Fan, Guoping Wang, Yinfeng Zhu
openalex   +1 more source