+ 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 > Bernat, A. P. [x] Sort results by: NASA Center | Date Added to NTRS | Publication Year There are a total of 13 record(s) matching your query. Sorted by: Date Added To NTRS in Descending order 1 2 Next  International Ultraviolet Explorer observations of Alpha Scorpii Author(s): Bernat, A. P. Abstract: IUE observations of the absorption spectrum of Alpha-2 Sco B2.5 V are presented. These lines arise from matter being lost by the red supergiant primary, Alpha-1 Sco M1.5 Iab, which is passing in front of the B star. There is ... NASA Center: NASA (non Center Specific) Publication Year: 1982 Added to NTRS: 2004-11-03 Accession Number: 82A24774; Document ID: 19820041239 Observations of the circumstellar gas shells around Betelgeuse and Antares Author(s): Bernat, A. P.; Lambert, D. L. Abstract: Results are presented on the direct observations of the circumstellar shell around alpha-Ori, along with new observations of the Ca II infrared triplet lines which provide lower limits for the Ca() shell radii for alpha-Ori ... NASA Center: NASA (non Center Specific) Publication Year: 1975 Added to NTRS: 2004-11-03 Accession Number: 76A13020; Document ID: 19760030054 Copernicus observations of Betelgeuse and Antares Author(s): Bernat, A. P.; Lambert, D. L. Abstract: The Mg II h and k lines were observed strongly in emission by Copernicus scans of the M supergiants alpha Ori and alpha Sco. The striking symmetry in the k line as contrasted with the symmetric h line, as observed previously ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2004-11-03 Accession Number: 76A29100; Document ID: 19760046134 The circumstellar shells and mass loss rates of four M supergiants Author(s): Bernat, A. P. Abstract: No Abstract Available NASA Center: NASA (non Center Specific) Publication Year: 1977 Added to NTRS: 2004-11-03 Accession Number: 77A32621; Document ID: 19770049769 The locations of Alpha-2 Herculis and Alpha-2 Scorpii along the line of sight Author(s): Bernat, A. P.; Bruhweiler, F. C.; Kondo, Y.; Van Der Hucht, K. A. Abstract: The theory of line formation along the line of sight to the visual companions of M stars undergoing spherically symmetric mass loss is developed. The theory is then used to determine the position of the companions relative ... NASA Center: Goddard Space Flight Center Publication Year: 1978 Added to NTRS: 2004-11-03 Accession Number: 78A42714; Document ID: 19780058805 Copernicus observations of Betelgeuse and Antares Author(s): Bernat, A. P.; Lambert, D. L. Abstract: Copernicus observations of the M-supergiants, alpha Ori and alpha Sco, are presented. The MgII h and k resonance lines are strongly in emission in both stars. The k line is highly asymmetric in both stars but the h line is ... NASA Center: NASA (non Center Specific) Publication Year: 1975 Added to NTRS: 2004-11-03 Accession Number: 75N24598; Document ID: 19750016526; Report Number: NASA-CR-142815 Mg II h and k emission from luminous M stars Author(s): Bernat, A. P.; Lambert, D. L. Abstract: Mg II h and k emission lines of the M2 giant beta Peg and the M5 supergiant alpha Her were detected in Copernicus observations. In the alpha Her profiles, similar to alpha Ori and alpha Sco profiles, the k line is asymmetric ... NASA Center: NASA (non Center Specific) Publication Year: 1978 Added to NTRS: 2004-11-03 Accession Number: 78A35218; Document ID: 19780051309 Ultraviolet observations of 31 and 32 Cygni Author(s): Stencel, R. E.; Kondo, Y.; Bernat, A. P.; Mccluskey, G. Abstract: Some observations of 31 and 32 Cygni, started in September 1978, at phases 0.62 and 0.17, respectively, are presented. The UV spectrum of 32 Cyg is described both qualitatively and quantitatively. Numerous lines of Si II, O ... NASA Center: Goddard Space Flight Center Publication Year: 1980 Added to NTRS: 2004-11-03 Accession Number: 80A53798; Document ID: 19800069628 Infrared spectra of the WN stars HD 50896 and HD 151932 Author(s): Bernat, A. P.; Barnes, T. G.; Schupler, B. R.; Potter, A. E. Abstract: No Abstract Available NASA Center: Johnson Space Center Publication Year: 1977 Added to NTRS: 2004-11-03 Accession Number: 78A11836; Document ID: 19780027927 K I 7699 A emission from the Betelgeuse shell Author(s): Bernat, A. P.; Lambert, D. L. Abstract: A map of the circumstellar gas shell around Betelgeuse is presented from observations of the fluorescent emission in the K I 7699 A resonance line. The observations obtained at 3 sec and 5 sec from the star indicate ... NASA Center: NASA (non Center Specific) Publication Year: 1976 Added to NTRS: 2004-11-03 Accession Number: 77A16011; Document ID: 19770033159 1 2 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