554 citations
- University of CambridgeGB52 papers
- University of OxfordGB27 papers
- University of Illinois Urbana-ChampaignUS16 papers
- Space Telescope Science InstituteUS12 papers
- University of California, IrvineUS12 papers
- California Institute of TechnologyUS11 papers
- Carnegie ObservatoriesUS11 papers
- Flatiron Institute11 papers
- Leiden UniversityNL11 papers
- Université Bourgogne Franche-ComtéFR11 papers
- University of Colorado BoulderUS11 papers
- Center for Astrophysics Harvard & SmithsonianUS10 papers
11 papers · 1 filter
The Transparency of Solar Coronal Active Regions
N. S. Brickhouse, J. T. Schmelz
Resonance scattering has often been invoked to explain the disagreement between the observed and predicted line ratios of Fe XVII 15.01 A to Fe XVII 15.26 A (the ``3C/3D'' ratio).…
Multithermal Analysis of a CDS Coronal Loop
J. T. Schmelz, P. C. H. Martens
The observations from 1998 April 20 taken with the Coronal Diagnostics Spectrometer CDS on SOHO of a coronal loop on the limb have shown that the plasma was multi-thermal along eac…
Neon Lights Up a Controversy: the Solar Ne/O Abundance
J. T. Schmelz, K. Nasraoui, J. K. Roames +2
The standard solar model was so reliable that it could predict the existence of the massive neutrino. Helioseismology measurements were so precise that they could determine the dep…
A note on the Harris-Kesten Theorem
Bela Bollobas, Oliver Riordan
Recently, a short proof of the Harris-Kesten result that the critical probability for bond percolation in the planar square lattice is 1/2 was given, using a sharp threshold result…
Spread-out percolation in R^d
Bela Bollobas, Svante Janson, Oliver Riordan
Let be either or the points of a Poisson process in of intensity 1. Given parameters and , join each pair of points of within distance independently…
Eigenvalues and degree deviation in graphs
Vladimir Nikiforov
Given a graph G of order n and size m, let s(G)= sum|d(u)-2m/n|, where the sum is taken over all vertices u of G. We investigate upper and lower bounds on eigenvalues of G in terms…