Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Tolbert, A. K."'
Autor:
Dennis, Brian R., Tolbert, Anne K.
The unusually narrow X-ray source imaged with RHESSI during an impulsive spike lasting for $\sim$10~s during the GOES C7.9 flare on 25 September 2011 (SOL2011-09-25T03:32) was only $\sim$2~ arcsec wide and $\sim$10~arcsec long. Comparison with HMI ma
Externí odkaz:
http://arxiv.org/abs/1910.13308
Autor:
Moore, Christopher S., Caspi, Amir, Woods, Thomas N., Chamberlin, Phillip C., Dennis, Brian R., Jones, Andrew R., Mason, James P., Schwartz, Richard A., Tolbert, Anne K.
Publikováno v:
Solar Physics, Vol. 293, 21 (40pp); 2018 January 3 [Open Access]
The Miniature X-ray Solar Spectrometer (MinXSS) CubeSat is the first solar science oriented CubeSat mission flown for the NASA Science Mission Directorate, with the main objective of measuring the solar soft X-ray (SXR) flux and a science goal of det
Externí odkaz:
http://arxiv.org/abs/1801.01261
Autor:
Share, G. H., Murphy, R. J., Tolbert, A. K., Dennis, B. R., White, S. M., Schwartz, R. A., Tylka, A. J.
Publikováno v:
The Astrophysical Journal, 869:182 ( 55pp ) , 2018 December 20
We characterize and provide a catalog of thirty >100 MeV sustained gamma-ray emission (SGRE) events observed by Fermi LAT. These events are temporally and spectrally distinct from the associated solar flares. Their spectra are consistent with decay o
Externí odkaz:
http://arxiv.org/abs/1711.01511
Autor:
Dennis, Brian R., Tolbert, Anne K., Inglis, Andrew, Ireland, Jack, Wang, Tongjiang, Holman, Gordon D., Hayes, Laura A., Gallagher, Peter T.
Publikováno v:
2017ApJ...836...84D
Quasi-periodic pulsations (QPP) seen in the time derivative of the GOES soft X-ray light curves are analyzed for the near-limb X3.2 event on 14 May 2013. The pulsations are apparent for a total of at least two hours from the impulsive phase to well i
Externí odkaz:
http://arxiv.org/abs/1706.03689
Autor:
Dennis, B. R., Phillips, K. J. H., Schwartz, R. A., Tolbert, A. K., Starr, R. D., Nittler, L. R.
X-ray spectra in the range $1.5-8.5$~keV have been analyzed for 526 large flares detected with the Solar Assembly for X-rays (SAX) on the Mercury {\em MESSENGER} spacecraft between 2007 and 2013. For each flare, the temperature and emission measure o
Externí odkaz:
http://arxiv.org/abs/1503.01602
We compare four different methods of calculating uncertainty estimates in fitting parameterized models to RHESSI X-ray spectra, considering only statistical sources of error. Three of the four methods are based on estimating the scale-size of the min
Externí odkaz:
http://arxiv.org/abs/1304.8117
Autor:
Fermi GBM Collaboration, Fermi LAT Collaboration, Dennis, B. R., Schwartz, R. A., Tolbert, A. K.
The GOES M2-class solar flare, SOL2010-06-12T00:57, was modest in many respects yet exhibited remarkable acceleration of energetic particles. The flare produced an ~50 s impulsive burst of hard X- and \gamma-ray emission up to at least 400 MeV observ
Externí odkaz:
http://arxiv.org/abs/1111.7026
Autor:
Inglis, A. R., Zimovets, I. V., Dennis, B. R., Kontar, E. P., Nakariakov, V. M., Struminsky, A. B., Tolbert, A. K.
Aims: We seek to illustrate the analysis problems posed by RHESSI spacecraft motion by studying persistent instrumental oscillations found in the lightcurves measured by RHESSI's X-ray detectors in the 6-12 keV and 12-25 keV energy range during the d
Externí odkaz:
http://arxiv.org/abs/1102.5349
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