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pro vyhledávání: '"Pugh, C."'
Context. Quasi-periodic pulsations (QPPs) are time variations in the energy emission during a flare that are observed on both the Sun and other stars and thus have the potential to link the physics of solar and stellar flares. Aims. To characterise t
Externí odkaz:
http://arxiv.org/abs/1908.06033
Publikováno v:
A&A 624, A65 (2019)
Quasi-periodic pulsations (QPPs) are a common feature of solar flares, but previously there has been a lack of observational evidence to support any of the theoretical models that might explain the origin of QPPs. We aimed to determine if there are a
Externí odkaz:
http://arxiv.org/abs/1902.09627
Publikováno v:
A&A 608, A101 (2017)
We investigate the properties of a set of solar flares originating from a single active region (AR) that exhibit QPPs, and look for signs of the QPP periods relating to AR properties. The AR studied, best known as NOAA 12192, was unusually long-lived
Externí odkaz:
http://arxiv.org/abs/1709.09472
Publikováno v:
A&A 602, A47 (2017)
The robust detection of quasi-periodic pulsations (QPPs) in solar and stellar flares has been the topic of recent debate. In light of this, we have adapted a method described by Vaughan (2005) to aid with the search for QPPs in flare time series data
Externí odkaz:
http://arxiv.org/abs/1703.07294
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We embark on a study of quasi-periodic pulsations (QPPs) in the decay phase of white-light stellar flares observed by Kepler. Out of the 1439 flares on 216 different stars detected in the short-cadence data using an automated search, 56 flares are fo
Externí odkaz:
http://arxiv.org/abs/1604.03018
Autor:
Pugh, C. J.
End-point detection for deep reactive ion etch of silicon in the semiconductor industry has been investigated with a focus on statistical treatments on optical emission spectroscopy. The data reduction technique Principal components analysis (PCA) ha
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.587802
Autor:
Armstrong, D. J., Pugh, C. E., Broomhall, A. -M., Brown, D. J. A., Lund, M. N., Osborn, H. P., Pollacco, D. L.
We embark on a detailed study of the lightcurves of Keplers most Earth-like exoplanet host stars using the full length of Kepler data. We derive rotation periods, photometric activity indices, flaring energies, mass loss rates, gyrochronological ages
Externí odkaz:
http://arxiv.org/abs/1511.05306
Autor:
Balona, L. A., Broomhall, A. -M., Kosovichev, A., Nakariakov, V. M., Pugh, C. E., Van Doorsselaere, T.
Two different mechanisms may act to induce quasi-periodic pulsations (QPP) in whole-disk observations of stellar flares. One mechanism may be magneto-hydromagnetic (MHD) forces and other processes acting on flare loops as seen in the Sun. The other m
Externí odkaz:
http://arxiv.org/abs/1504.01491
Autor:
Erven, C., Meyer-Scott, E., Fisher, K., Lavoie, J., Higgins, B. L., Yan, Z., Pugh, C. J., Bourgoin, J. -P., Prevedel, R., Shalm, L. K., Richards, L., Gigov, N., Laflamme, R., Weihs, G., Jennewein, T., Resch, K. J.
Publikováno v:
Nature Photonics 8, 292-296 (2014)
Quantum correlations are critical to our understanding of nature, with far-reaching technological and fundamental impact. These often manifest as violations of Bell's inequalities, bounds derived from the assumptions of locality and realism, concepts
Externí odkaz:
http://arxiv.org/abs/1309.1379