R
Ronald F. Elsner
Researcher at Marshall Space Flight Center
Publications - 113
Citations - 4308
Ronald F. Elsner is an academic researcher from Marshall Space Flight Center. The author has contributed to research in topics: Pulsar & Jupiter. The author has an hindex of 31, co-authored 112 publications receiving 3934 citations.
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Journal ArticleDOI
Discovery of Spatial and Spectral Structure in the X-Ray Emission from the Crab Nebula.
Martin C. Weisskopf,J. Jeff Hester,Allyn F. Tennant,Ronald F. Elsner,Norbert S. Schulz,Herman L. Marshall,Margarita Karovska,Joy S. Nichols,Douglas A. Swartz,Jeffery J. Kolodziejczak,Stephen L. O'Dell +10 more
TL;DR: In this paper, Chandra X-ray images with the Advanced CCD Imaging Spectrometer spectroscopy array (ACIS-S) showed a striking richness of Xray structure at a resolution comparable to that of the best ground-based visible-light observations.
Journal ArticleDOI
Discovery of Spatial and Spectral Structure in the X-Ray Emission from the Crab Nebula
Martin C. Weisskopf,J. Jeff Hester,Allyn F. Tennant,Ronald F. Elsner,Norbert S. Schulz,Herman L. Marshall,Margarita Karovska,Joy S. Nichols,Douglas A. Swartz,Jeffery J. Kolodziejczak,Stephen L. O'Dell +10 more
TL;DR: Zeroth-order images with the High-Energy Transmission Grating (HETG) readout by the Advanced CCD Imaging Spectrometer spectroscopy array (ACIS-S) show a striking richness of X-ray structure at a resolution comparable to that of the best ground-based visible-light observations.
Journal ArticleDOI
A pulsating auroral X-ray hot spot on Jupiter
G. R. Gladstone,J. H. Waite,Denis Grodent,W. S. Lewis,F. J. Crary,Ronald F. Elsner,Martin C. Weisskopf,Tariq Majeed,J.-M. Jahn,Anil Bhardwaj,John Clarke,D. T. Young,Michele K. Dougherty,S. A. Espinosa,Thomas E. Cravens +14 more
TL;DR: High-spatial-resolution observations demonstrate that most of Jupiter's northern auroral X-rays come from a ‘hot spot’ located significantly poleward of the latitudes connected to the inner magnetosphere, invalidate the idea that jovian auroralX-ray emissions are mainly excited by steady precipitation of energetic heavy ions from the inner Magnetosphere.
Proceedings ArticleDOI
The Imaging X-ray Polarimetry Explorer (IXPE)
Martin C. Weisskopf,Brian D. Ramsey,Stephen L. O'Dell,Allyn F. Tennant,Ronald F. Elsner,Paolo Soffitta,Ronaldo Bellazzini,Enrico Costa,Jeffrey Kolodziejczak,Victoria M. Kaspi,Fabio Muleri,Herman L. Marshall,Giorgio Matt,Roger W. Romani +13 more
TL;DR: The Imaging X-ray Polarimetry Explorer (IXPE) as mentioned in this paper is an international collaboration for a scientific mission that dramatically brings together the unique talents of the partners to expand observation space by simultaneously adding polarization measurements to the array of source properties currently measured (energy, time, and location).
Journal ArticleDOI
Simultaneous Chandra X ray, Hubble Space Telescope Ultraviolet, and Ulysses Radio Observations of Jupiter's Aurora
Ronald F. Elsner,Noé Lugaz,J. H. Waite,Thomas E. Cravens,G. R. Gladstone,Peter G. Ford,Denis Grodent,Anil Bhardwaj,Anil Bhardwaj,Robert J. MacDowall,Michael D. Desch,Tariq Majeed +11 more
TL;DR: In this paper, Chandra Advanced CCD Imaging Spectrometer (ACIS-S) observations of the Jovian auroral X-ray spectrum were carried out over 24-26 February 2003 by NASA's Advanced CCS-S instrument over 24 and 26 February 2003, and the results showed that the spectrum consists of line emission consistent with high-charge states of precipitating ions.