Results 81 to 90 of about 440,939 (238)

Taming the Invisible Monster: System Parameter Constraints for Epsilon Aurigae from the Far-Ultraviolet to the Mid-Infrared [PDF]

, 2010
We have assembled new Spitzer Space Telescope Infrared Array Camera observations of the mysterious binary star Epsilon Aurigae, along with archival far-ultraviolet to mid-infrared data, to form an unprecedented spectral energy distribution spanning three
Ake, Ake, Altenhoff, Altner, Bloecker, Castelli, Castelli, Cohen, Cox, D'Alessio, D. W. Hoard, Deming, Egan, Eggleton, Fazio, Ferluga, Ferluga, Fitzpatrick, Guinan, Hack, Hack, Hartmann, Hoard, Holweger, Houck, Howell, Huang, Kohler, Kopal, Lawlor, Mendoza, Morales, Mozurkewich, Natta, Nordgren, Perryman, R. E. Stencel, Rieke, S. B. Howell, Saito, Schmidtke, Skrutskie, Stencel, Stencel, Stickland, Tielens, Webbink, Werner, Wolk, Wood   +49 more
core   +2 more sources

Directed random geometric graphs: structural and spectral properties

Journal of Physics: Complexity, 2022
In this work we analyze structural and spectral properties of a model of directed random geometric graphs: given n vertices uniformly and independently distributed on the unit square, a directed edge is set between two vertices if their distance is ...
Kevin Peralta-Martinez, J A Méndez-Bermúdez   +1 more
doaj   +1 more source

A Novel Algorithm for Initial Cluster Center Selection

IEEE Access, 2019
As one of the most important techniques in data mining, clustering has always been highly concerned. Most clustering algorithms have encountered challenges, such as the difficulty of cluster centers selection, the artificial determination of the number ...
Yating Li, Jianghui Cai, Haifeng Yang, Jifu Zhang, Xujun Zhao   +4 more
doaj   +1 more source

Distance (signless) Laplacian spectral radius of uniform hypergraphs

Linear Algebra and its Applications, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongying Lin, Bo Zhou, Yanna Wang
openaire   +2 more sources

A proof of a conjecture on the distance spectral radius [PDF]

Linear Algebra and its Applications, 2023
Yanna Wang, Bo Zhou
semanticscholar   +1 more source

The Ultraviolet Spectrum and Physical Properties of the Mass Donor Star in HD 226868 = Cygnus X-1

, 2009
We present an examination of high resolution, ultraviolet spectroscopy from Hubble Space Telescope of the photospheric spectrum of the O-supergiant in the massive X-ray binary HD 226868 = Cyg X-1.
A. Herrero, Balog, Bolton, Bruevich, C. T. Bolton, Canalizo, Claret, Cohen, Colina, D. R. Gies, Gies, Gies, Gray, Herrero, Howarth, Kemp, Khaliullin, L. Kaper, Lanz, Lanz, Lefever, Lestrade, M. V. McSwain, Megier, Miller, Mochnacki, Osterbrock, P. Hadrava, P. Koubský, Paczyński, S. B. Howell, S. M. Caballero-Nieves, Schaller, Shaposhnikov, Skrutskie, T. C. Hillwig, Tomsick, Vrtilek, W. Huang, Wade, Wegner   +40 more
core   +1 more source

On spectral radius of the generalized distance matrix of a graph [PDF]

Discrete Mathematics Letters, 2021
Shariefuddin Pirzada
doaj   +1 more source

On the distance spectral radius of bipartite graphs

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

Cloud geometry from oxygen-A-band observations through an aircraft side window [PDF]

Atmospheric Measurement Techniques, 2019
During the ACRIDICON-CHUVA (Aerosol, Cloud, Precipitation, and Radiation Interactions and Dynamics of Convective Cloud Systems–Cloud Processes of the Main Precipitation Systems in Brazil: A Contribution to Cloud Resolving Modeling and to the GPM (Global ...
T. Zinner, U. Schwarz, T. Kölling, F. Ewald, F. Ewald, E. Jäkel, B. Mayer, M. Wendisch   +7 more
doaj   +1 more source

Extremal values for the spectral radius of the normalized distance Laplacian [PDF]

, 2023
Jacob Johnston, Michael Tait
openalex   +1 more source