+ Visit NASA.gov + Contact NASA   + Home Select Search Field * All Report - Patent Number Abstract *Accession Number *NASA Center *Author NameDocument IDKeywordsPublication Date *Title * Find Results With All of the words At least one of the words Enter Search Term  within returned results    Search Tips: Use only the fields with * to search NIX collection. Enclose terms in double quotation marks (") to search for exact phrases, ie: "space shuttle". NOTE: Commas and dashes are removed from search term by search engine. Select Reset Search button to start a new search. See Help for more tips. + NASA Center + Publication Year + Subject + Availability Options + Item/Media Type Selected Navigations: Author > Drake, Jeremy [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 22 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 3 Next  Coronal Diagnostics of Intermediate Activity Star XI Boo A Author(s): Drake, Jeremy Abstract: The analysis of Xi Boo A proved difficult to adapt to our line-by-line approach because of the strong wings of the RGS instrumental profile, as has been detailed in earlier reports. While progress was also delayed because of ... NASA Center: Goddard Space Flight Center Publication Year: 2005 Added to NTRS: 2008-06-02 Document ID: 20050060725 KSI UMA and the FIP Effect Versus Metal Poor Coronae Conundrum Author(s): Drake, Jeremy Abstract: Analysis of the data has been completed. ASCA data indicate a metal-poor corona, with metals down by a factor of 3 or more relative to the photospheric values. EUVE data show a FIP Effect, which is Expected if the metals are ... NASA Center: Goddard Space Flight Center Publication Year: 2001 Added to NTRS: 2008-06-02 Document ID: 20010032273 Chemical Compositions and Abundance Anomalies in Stellar Coronae ADP99 Author(s): Drake, Jeremy Abstract: We have been investigating different statistical methods for analysing the metal abundances of sources with low S/N. A Bayesian technique has been developed that determines the most probable line-to-continuum ratio in the ... NASA Center: Goddard Space Flight Center Publication Year: 2002 Added to NTRS: 2008-06-02 Document ID: 20020042359 High Resolution Spectroscopy And Timing Of The Isolated Neutron Star RBS 1774 Author(s): Drake, Jeremy Abstract: The 2004 May 31 XMM-Newton observation was reprocessed using SASv6.0.0 and times of high background were filtered out. The net exposure time remaining was 23 ks. The source was clearly detected in MOS1, MOS2 and PN chips. We ... NASA Center: Goddard Space Flight Center Publication Year: 2005 Added to NTRS: 2005-08-25 Document ID: 20050185232 Chemical Compositions and Anomalies in Stellar Coronae Author(s): Drake, Jeremy Abstract: In summary, as the papers cited here and in earlier reports demonstrate, this award has enabled us to obtain a fairly good picture of the abundance anomalies in stellar coronae. The "inverse FIP" effect in very active stars ... NASA Center: Goddard Space Flight Center Publication Year: 2005 Added to NTRS: 2005-08-25 Document ID: 20050186743 Chemical Compositions and Anomalies in Stellar Coronae ADP99 Author(s): Drake, Jeremy Abstract: Recent progress includes a paper accepted by the ApJ on AB Dor and V471 Tau, and papers on xi UMa and on giant stars submitted but still under ApJ revision. Atomic data has been investigated for line ratio abundance ... NASA Center: Goddard Space Flight Center Publication Year: 2005 Added to NTRS: 2005-05-18 Document ID: 20050092436 Demonstrating the Power of Chandra High Resolution Spectroscopy Plasma Diagnostics Author(s): Drake, Jeremy Abstract: The Chandra spectrometers can resolve spectroscopic features that can be used to diagnose the state of emitting plasma. Based on high resolution Chandra High Energy Transmission Grating (HETG) calibration observations of the ... NASA Center: Marshall Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000097578 New Results From Chandra: Abundances in Stellar Coronae Author(s): Drake, Jeremy Abstract: There is considerable evidence, both solar and stellar, that the chemical compositions of stellar coronae differ from their underlying 1)hotospheres. The differences for solar-type stars appear to be related to FIP, whereas ... NASA Center: Marshall Space Flight Center Publication Year: 1999 Added to NTRS: 2004-11-03 Document ID: 19990106592 Chemical Compositions and Abundance Anomalies in Stellar Coronae ADP 99 Author(s): Drake, Jeremy Abstract: Progress has been made using both EUVE (Extreme Ultraviolet Explorer) and ASCA (Advanced Satellite for Cosmology and Astrophysics) data and a new postdoctoral scientist has now been hired. Stars studied to date include YY ... NASA Center: Goddard Space Flight Center Publication Year: 2003 Added to NTRS: 2004-11-03 Document ID: 20030019935 An EUV Study of the Eclipsing M-Dwarf Binary System YY GEM Author(s): Drake, Jeremy Abstract: EUVE, SW, MW and LW spectra have been reduced and line fluxes measured. The Deep Survey data has been analyzed and light curves have been derived. The spectra around the HE II 304 region show some evidence of emission from ... NASA Center: Goddard Space Flight Center Publication Year: 2000 Added to NTRS: 2004-11-03 Document ID: 20000021100 1 2 3 Next  + Back to Top + Sponsored by the NASA Scientific and Technical    Information Program + 2004 Vision for Space Exploration + Freedom of Information Act + NASA Web Privacy Policy and Important Notices + NASA Disclaimers, Copyright Notice,    and Terms and Conditions of Use NASA Official: Calvin Mackey Page Curator: NASA Center for AeroSpace Information (help@sti.nasa.gov) Last Updated: July 5, 2007