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Monday, November 9, 2020 | History

3 edition of Coordinated XTE/EUVE observations of Algol found in the catalog.

Coordinated XTE/EUVE observations of Algol

Robert A. Stern

Coordinated XTE/EUVE observations of Algol

NASA P.O. no. S-73068-Z, final report

by Robert A. Stern

  • 167 Want to read
  • 18 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Algol.,
  • Eclipsing binary stars.,
  • Coronas.,
  • Extreme ultraviolet explorer satellite.,
  • High temperature plasmas.,
  • X rays.,
  • Plasmas (Physics).

  • Edition Notes

    Statementprincipal investigator, Robert A. Stern.
    Series[NASA contractor report] -- 205746., NASA contractor report -- NASA CR-205746.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15491523M


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Coordinated XTE/EUVE observations of Algol by Robert A. Stern Download PDF EPUB FB2

We propose a coordinated XTE observation of the prototypical eclipsing binary Algol in conjunction with an already approved EUVE observation. Observing the X-ray spectrum of Algol with XTE,EUVE, and hopefully ASCA will provide critical, near-simultaneous constraints on the distribution of the hottest temperature plasma in the Algol system: this is required to unambiguously determine the coronal Fe Author: Robert Stern.

EUVE, ASCA, and XTE observed the eclipsing binary Algol (Beta Per) from Feb. The coordinated observation covered approximately 2 binary orbits of the system, with a net exposure of Coordinated XTE/EUVE observations of Algol book ksec for EUVE, 40 ksec for ASCA (in 4 pointing), and 90 ksec for XTE Author: Robert A.

Stern. EUVE, ASCA, and XTE observed the eclipsing binary Algol (beta Per) from Feb EUVE was continuously pointing at Algol (with the exception of earth block, SAA passages, etc.) for ~ 2 binary orbits, with a net exposure time of ksec, ASCA for ~ 40 ksec net exposure in 4 separate pointings, and XTE for ~ 90 ksec in 45 : R.

Stern, J. Lemen, S. Antunes, S. Drake, F. Nagase, J. Schmitt, K. Singh, N. EUVE, Advanced Satellite for Cosmology and Astrophysics (ASCA), and X-ray Timing Explorer (XTE) observed the eclipsing binary Algol (Beta Per) from Feb The coordinated observation covered approx.

2 binary orbits of the system, with a net exposure of approx. ksec for EUVE, 40 ksec for ASCA (in 4 pointings), and 90 ksec for XTE (in 45 pointings). Not Available adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86ACited by: 2.

EUVE, ASCA, and XTE observed the eclipsing binary Algol (Beta Per) from Feb. The coordinated observation covered approximately 2 binary orbits of the system, with a net exposure of approximately ksec for EUVE, 40 ksec for ASCA (in 4 pointing), and 90 ksec for XTE Author: Robert A. Stern. EUVE, ASCA, and XTE observed the eclipsing binary Algol (Beta Per) from Feb.

The coordinated observation covered approximately 2 binary orbits of the system, with a net exposure of approximately ksec for EUVE, 40 ksec for ASCA (in 4 pointing), and 90 ksec for XTE. The coordinated observation covered ~2 binary orbits of the system, with a net exposure of ~ ksec for EUVE, 40 ksec for ASCA (in 4 pointings), and 90 ksec for XTE (in 45 pointings).

EUVE, Advanced Satellite for Cosmology and Astrophysics (ASCA), and X-ray Timing Explorer (XTE) observed the eclipsing binary Algol (Beta Per) from Feb The coordinated observation covered approx.

2 binary orbits of the system, with a net exposure of approx. ksec for EUVE, 40 ksec for ASCA (in 4 pointings), and 90 ksec for XTE Coordinated XTE/EUVE observations of Algol book 45 pointings).Author: Robert A. Stern. The coordinated EUVE, ASCA, and XTE observations of Algol obtained in February offer a unique opportunity to determine the EM distribution and element abundances of the Algol system.

Coordinated multiwavelength data indicate consistency with earlier ASCA and EUVE results, i.e., an [Fe/H] 30%. Get this from a library. Coordinated ASCA/EUVE/XTE observations of Algol: NASA P.O. SZ, final report. [Robert A Stern; United States.

National Aeronautics and Space Administration.]. Get this from a library. Coordinated XTE/EUVE observations of Algol: NASA P.O. SZ, final report. [Robert A Stern; United States.

National Aeronautics and Space Administration.]. Coordinated EUVE/ASCA/XTE/VLA Observations of Algol First Author: Stern, R. American Astronomical Society, th AAS Meeting, #; Bulletin of the American Astronomical Society, Vol. 28, p Publication Date: May Complete and Simultaneous Spectral Observations of the Black Hole X-Ray Nova XTE J+ EUVE observations of Algol: Detection of a continuum and implications for the coronal (Fe/H) abundance Extreme Ultraviolet Explorer observations of the.

My first observation on a variable star was in May On June 8,my 9th year of observing, I recordedvisual observations of variable stars being the first Australian observer to do so. On JanuI made my ,th variable star observation which was achieved in 18 years and 8.

The coordinated observation covered approx. 2 binary orbits of the system, with a net exposure of approx. ksec for EUVE, 40 ksec for ASCA (in 4 pointings), and 90 ksec for XTE (in 45 pointings.

EUVE Observation of the day Cycle of Her X-1 D. Leahy In: EUVE Proposal, p30, ADS bibliographic code: 30L Multiwavelength Observations of Hercules X-1 B. Boroson In: EUVE Proposal, p22, ADS bibliographic code: 22B A Comprehensive Study of EUV/X-ray Variability in the Narrow-Line Seyfert 1 Ton S The coordinated observation covered approximately 2 binary orbits of the system, with a net exposure of approximately ksec for EUVE, 40 ksec for ASCA (in 4 pointing), and 90 ksec for XTE (in.

The Spin-down Rate and X-ray Flux of 1E and XTE Observations of Related Sources R. Corbet and T. Mihara In: Bulletin of the American Astronomical Society, p, December. The coordinated observation covered approx. 2 binary orbits of the system, with a net exposure of approx.

ksec for EUVE, 40 ksec for ASCA (in 4 pointings), and 90 ksec for XTE (in 45 pointings). Algol is one of the best known variable stars in the sky and a prototype for a class of eclipsing variable stars known as Algol variables. It is a triple star system composed of Beta Persei Aa1, a B-class main sequence star, Beta Persei Aa2, an orange.

ALGOL 60 (short for Algorithmic Language ) is a member of the ALGOL family of computer programming languages. It followed on from ALGOL 58 which had introduced code blocks and the begin and end pairs for delimiting them, representing a key advance in the rise of structured 60 was the first language implementing nested function definitions with lexical Designed by: Backus, Bauer, Green, Katz.

The Making of Algol 68 by C. Koster. Personal memories of Kees Koster, one of the authors of the Algol 68 Reports, about the events surrounding the birth of Algol The MC Revised ALGOL 68 Test Set. The definitive torture test for Algol 68 compilers.

Many thanks to Dick Grune for this. A68ToC port to EMX. A port of the ELLA A68ToC. Algol / ˈ æ l ɡ ɒ l /, designated Beta Persei (β Persei, abbreviated Beta Per, β Per), known colloquially as the Demon Star, is a bright multiple star in the constellation of Perseus and one of the first non- nova variable stars to be discovered.

Algol Location of β Persei (circled) Observation data Epoch J Equinox J Constellation Perseus Right ascension 03 h 08 m s Designed by: Bauer, Bottenbruch.

Limb-brightening observations from the OSO-7 satellite. III - Comparison of EUV line intensities of Fe XII, Fe XI, Fe XV, Si X and S XII, Si IX and S XI with predictions Stephen King (Algol conjunct North Node), master of horror, whose books keep turning into films, nearly died after being run over by a truck, and should have died, but somehow recovered.

Heart-throb Johnny Depp (Algol conjunct Venus), had to grapple with a headless fiend in Sleepy Hollow, and found out who Jack the Ripper was, in From Hell. The EUVE Bibliography. as of 31 Decem NASA's Extreme Ultraviolet Explorer (EUVE) satellite launched in June 1 This bibliography lists all accepted publications based on EUVE data to date, as well as current technology and education publications, and selected prelaunch papers on mission operations and instrumentation.

All papers listed before a horizontal. 11/2/94 Wednesday ===== - Welcome, Announcements (Elvis, Carone) - KOYAMA: ASCA Observations of the Galactic Center (Invited) - ACTIVE GALACTIC NUCLEI: 1 URRY: Multiwavelength Observations of AGN (Invited) WARWICK: Soft X-ray variability in NGC EDELSON: Correlated Multi-wavelength Variability in the Seyfert 1.

Algol an interim design. Followed by lots of discussions in the Algol Bulletin and CACM. Algol result of an intensive 6 day design effort by a committee in Paris. A few revisions made; Algol 60 report published in CACM in Jan The meetings were exhausting, interminable, and exhilarating.

ALGOL W is a programming is based on a proposal for ALGOL X by Niklaus Wirth and Tony Hoare as a successor to ALGOL 60 in International Federation for Information Processing (IFIP) IFIP Working Group When the committee decided that the proposal was not a sufficient advance over AL the proposal was published as A contribution to the development of ed by: Niklaus Wirth, Tony Hoare.

The Sun joins Algol on May Fixed star Algol, Beta Persei, is a magnitude, rare triple star and eclipsing binary, located in the Medusa’s Head, carried in the left hand of the Hero, Perseus name Algol comes from the Arabic word رئيس الغول, meaning Head of the English translation became Demon Star, with other names being Satan’s Head, the Spectre.

Algol. This is a second, IIIa-J exposure with a GG filter from the Digitized Sky Survey. Like many astronomical pictures which look pretty, this image of Algol is of no practical use. Algol is bright, varying from 2nd magnitude to 3rd magnitude. in Al every value is a constant. All the usual paraphernalia of pointers, statements and expressions is dispensed with.

Instead, a whole new sublanguage is provided for understanding the nature of programming. This book covers the language as implemented by the DRA a68toc Size: 1MB.

Enough of the ALGOL language is introduced in this chapteto enable. studerit to write very simple programs. One series of exercises is arranged in. such a way as to build tip complete pr grams, any or all of which, can be com-puter tested.

These are exercises 1. HEAO 1 high-energy X-ray observations of three bright transient X-ray sources H (Nova Ophiuchi), H, and H (Scutum X-1) PASJ K Algol's Use In Fixed Star Astrology (Beyond The Planets Book 1) - Kindle edition by Hoover, D.M. Download it once and read it on your Kindle device, PC, phones or tablets.

Use features like bookmarks, note taking and highlighting while reading Algol's Use In Fixed Star Astrology (Beyond The Planets Book /5(2).

Algol, also called Beta Persei, prototype of a class of variable stars called eclipsing binaries, the second brightest star in the northern constellation apparent visual magnitude changes over the range of to with a period of days. Even at its dimmest it remains readily visible to the unaided eye.

The name probably derives from an Arabic phrase meaning “demon,” or. Algol variables or Algol-type binaries are a class of eclipsing binary stars that are related to the prototype member of this class, β Persei (Beta Persei, Algol) from an evolutionary point of Algol binary is a semidetached binary system where the primary component is an early type, main sequence star that does not fill its Roche lobe, while the cooler, fainter, larger, less massive.

Due to GSFC network upgrades there may be some intermittent service outages Thursday, May 21 5pm - Friday, May 22 3am ET. Algol, designated Beta Persei (β Persei, abbreviated Beta Per, β Per), known colloquially as the Demon Star, is a bright multiple star in the constellation of is the first and best known eclipsing binary, and one of the first non-nova variable stars to be discovered.

An Ancient Egyptian Calendar of Lucky and Unlucky Days composed some 3, years ago is claimed to be the oldest.