Zobrazeno 1 - 10
of 545
pro vyhledávání: '"Brown, John C"'
Autor:
Brown, John C1 (AUTHOR), McMichael, Benjamin D1,2 (AUTHOR), Vandadi, Vasudha1 (AUTHOR), Mukherjee, Aadit2 (AUTHOR), Salzler, Harmony R1 (AUTHOR) hsalzler@email.unc.edu, Matera, A Gregory1,2,3,4 (AUTHOR) matera@unc.edu
Publikováno v:
G3: Genes | Genomes | Genetics. Apr2024, Vol. 14 Issue 4, p1-15. 15p.
High-metallicity pollution is common in white dwarf (WD) stars hosting remnant planetary systems. However, they rarely have detectable debris accretion discs, possibly because much of the influx is fast steeply-infalling debris in star-grazing orbits
Externí odkaz:
http://arxiv.org/abs/1702.05109
Autor:
Reep, Jeffrey W., Brown, John C.
Brown & Mallik 2008 and the Brown et al. 2010 corrigendum of it presented expressions for non-thermal recombination (NTR) in the collisionally thin- and thick-target regimes, claiming that the process could account for a substantial part of hard X-ra
Externí odkaz:
http://arxiv.org/abs/1604.04607
Publikováno v:
The Astrophysical Journal, 807:165 (12pp), 2015 July 10
Motivated by recent data on comets in the low corona, we discuss destruction of sun impacting comets in the dense lower solar atmosphere. Perihelion distances q less than the solar radius and incident masses Mo much greater than 1E12 g are required t
Externí odkaz:
http://arxiv.org/abs/1507.05062
Publikováno v:
2012, AIP Conference Proceedings 1429, "Stellar Polarimetry: From Birth to Death," eds. J.L. Hoffman, J.E. Bjorkman, and B.A. Whitney (New York: AIP), 289
On the final day of the Stellar Polarimetry conference, participants split up into three "breakout sessions" to discuss the future of the field in the areas of instrumentation, upcoming opportunities, and community priorities. This contribution compi
Externí odkaz:
http://arxiv.org/abs/1205.2159
Autor:
Bernhofen, Daniel M., Brown, John C.
Publikováno v:
The Journal of Economic Perspectives, 2018 Oct 01. 32(4), 227-240.
Externí odkaz:
https://www.jstor.org/stable/26513503
Autor:
BROWN, JOHN C., GUINNANE, TIMOTHY W.
Publikováno v:
The Economic History Review, 2018 Aug 01. 71(3), 853-886.
Externí odkaz:
https://www.jstor.org/stable/45183695
Electron-Electron Bremsstrahlung Emission and the Inference of Electron Flux Spectra in Solar Flares
Autor:
Kontar, Eduard P., Emslie, A. Gordon, Massone, Anna Maria, Piana, Michele, Brown, John C., Prato, Marco
Although both electron-ion and electron-electron bremsstrahlung contribute to the hard X-ray emission from solar flares, the latter is normally ignored. Such an omission is not justified at electron (and photon) energies above $\sim 300$ keV, and inc
Externí odkaz:
http://arxiv.org/abs/0707.4225
Autor:
Brown, John C., Mallik, Procheta C. V.
Context. Flare Hard X-Rays (HXRs) from non-thermal electrons are commonly treated as solely bremsstrahlung (f-f), recombination (f-b) being neglected. This assumption is shown to be substantially in error, especially in hot sources, mainly due to rec
Externí odkaz:
http://arxiv.org/abs/0706.2823
Autor:
Kontar, Eduard P., Brown, John C.
Publikováno v:
Astrophys.J.653:L149-L152,2006
Hard X-ray (HXR) spectroscopy is the most direct method of diagnosing energetic electrons in solar flares. Here we present a technique which allows us to use a single HXR spectrum to determine an effectively stereoscopic electron energy distribution.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0611170