X-ray astronomy in the EXOSAT era : proceedings of the XVIII ESLAB Symposium, held in The Hague, the Netherlands, 5-9 November 1984

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X-ray astronomy in the EXOSAT era : proceedings of the XVIII ESLAB Symposium, held in The Hague, the Netherlands, 5-9 November 1984

edited by A. Peacock

D. Reidel Pub. Co. , Sold and distributed in the U.S.A. and Canada by Kluwer Academic Publishers, c1985

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注記

"Reprinted from Space science reviews, vol. 40, nos. 1-4 (1985)"

Includes bibliographical references and indexes

内容説明・目次

内容説明

Algol is a triple system containing a 70 hr eclipsing binary (K IV and B8 V) in a 694 day orbit with an A V star. The X-ray emission from this system (Schnopper et al 1976) is thought to be associated with a corona surrounding the lobe filling and synchron- ously rotating K IV star. This is based on the similarity of the X-ray spectrum and luminosity of this system to that of the RS CVn binaries which also contain K sub-giants with similar rotation periods and the fact that the luminosity of any coronae surrounding the B8 V and AV companion stars should not be enhanced by rapid rotation (Pallavicini et al 1980, White et al 1980). The Einstein SSS measurement showed the X-ray spectrum to be two component with 6 7 temperatures of 7. 10 K and 3. 10 K (White et al. 1980). As dis- cussed by Swank et al. (1981), the problem in understanding stellar coronae in general is how to scale up the solar model to account for the enhanced luminosities. The close to 900 inclination and similar sizes for the Band K stars of 3. 6 and 3. 8 R0 respectively make Algol an ideal candidate for an X-ray eclipse measurement wherein the size of the X-ray emitting coronal structures can be directly measured. In this paper we report a continuous observation through the secondary eclipse of Algol using the EXOSAT Observatory. 2.

目次

I / Galactic X-Ray Astronomy.- Section I: Stellar Coronae and Isolated White Dwarfs.- Magnetic Activity in Cool Stars (Invited Paper) 3.- An EXOSAT Observation of the Morphology of the Coronal X-Ray Emission from Algol.- Observation of an X-Ray Outburst and Quiescent Emission from the RS CVn Binary HR1099.- EXOSAT Observations of Late-Type Stars: The Application of Coronal Loop Models.- X-Ray Observations of Active Chromosphere Stars.- EXOSAT Observations of the Contact Binary VW Cephei.- The Extremely X-Ray Bright Wolf-Rayet Star HD193793.- EXOSAT Observations of M Dwarfs.- EXOSAT Observations of Active Stellar Coronae in the Cygnus Loop, T Tau & NGC 2264 Regions.- X-Ray Emission from Isolated Hot White Dwarfs (Invited Paper).- X-Ray and Optical Variability at the Hour Timescale for 1E 0630+178 (GEMINGA) and Its Proposed Optical Counterpart.- Section II: Cataclysmic Variables.- X-Ray Emission from Cataclysmic Variables (Invited Paper).- Hard X-Ray Observations of the Eclipsing Binary EX Hydrae.- 2AO526-328: The White Dwarf Rotation Period Revealed.- SS Cygni in Outburst and Quiescence.- EXOSAT/Optical Observations of the AM Her Star HO139-68.- X-Ray Variability of the AM Her Star CW1103+254.- New EXOSAT Results from the Intermediate Polar V1223 SGR.- X-Ray, Optical and UV Observations of the AM Her System E2003+225.- X-Ray and Optical Observations of Nova Muscae 1983 During its Nebular Stage.- The Discovery of a 25 min Regular Modulation in the X-Ray Flux from 2SO142+61.- The Decay of Dwarf Nova Outbursts.- Section III: X-Ray Binary Sources - Low Mass/High Mass Systems.- The Structure of Low-Mass X-Ray Binaries (Invited Paper).- The Big Dipper: 4U1624-49.- Spectral Variability of Scorpius X-l, as Observed with EXOSAT.- High and Medium Resolution Spectroscopy of the X-Ray Transient 4U1543-47.- An Investigation into the Nature of the 4.4 hr Periodic Source 4U1755-33.- An IR, Optical and X-Ray Study of the Two State Behaviour of GX 339-4.- An EXOSAT Observation of the Peculiar X-Ray Binary 2S 0921-630 During Optical Eclipse.- LHG 83: Another Outstanding X-Ray Binary in the LMC.- EXOSAT Medium Energy Observations of Cyg X-2.- CCD Photometry of Low Mass X-Ray Binaries: LMCX-2, 1556-60 and 1957+11.- On Maximum Luminosities of X-Ray Bursts.- Coordinated Optical-EXOSAT-Tenma Observations of a Burst from 2S1636-536.- EXOSAT and Optical Observations of the X-Ray Burst Source 4U/MXB1636-53.- EXOSAT Observations of Bursts from 2S1636-536: Burst Morphology 263.- The Quiescent Spectrum of 2S1636-536.- EXOSAT Results on the X-Ray Burster 2S1254-690.- Coordinated EXOSAT and Optical Observations of the X-Ray Burster 4U1735-44.- First Detection of an X-Ray Burst and a One Hour Intensity Dip in 4U1323-62.- Detection of Iron Lines in the Persistent Emission of Some X-Ray Burst Sources Observed by EXOSAT.- The Variable Iron Line in Cygnus X-3.- Long Term Observations of Cyg X-3 with Vela 5B.- Cyg X-3 Not Seen at High-Energy Gamma Rays.- Tenma Observations of Bright Binary X-Ray Sources (Invited Paper).- Temporal Intensity Fluctuations of Her X-l Around 100 sec Time Scales.- 35 Day Cycle and the Rotation Period of Her X-l.- EXOSAT Observations of the Iron Line Emission of Her X-l During a 35 Day Cycle.- Spectra and Time Variability of GX 5-1.- EXOSAT Observations of the Bright X-Ray Source GX9+1.- LMC X-4: 13.5 Pulsations and an X-Ray Flare Observed by EXOSAT.- LMC X-4, A0538-66 and Surrounding X-Ray Sources Observed with EXOSAT.- The Discovery of Low-Level Iron Line Emission from Cyg X-l.- Study of Rapid Variability in Cygnus X-l.- The Spectral and Temporal Variability of the X-Ray Transient 4U1630-47.- Intermittent Stellar Wind Accretion in Pop. I Binary Systems Containing an X-Ray Pulsar.- Be/Neutron Star Binaries: Orbital and Spin Periods.- The Long Term Variability of 4U 1258-61 (GX304-1).- Observation of X-Ray Spectrum of GX301-2.- EXOSAT Observations of the X-Ray Pulsar 4U1145-619.- A High Quality Low State Observation of CIR X-l 433.- A New Viw of the Galactic Plane with EXOSAT.- Optical Identifications of Faint X-Ray Sources: New CCD Candidates for 0918-549, 1822-000 and 1905-000.- Section IV: Supernova Remnants and the Interstellar Medium.- Galactic Supernova Remnants (Invited Paper) 447.- X-Ray Spectrum of the Tycho SNR Observed with EXOSAT.- EXOSAT PSD and CMA Observations of the SNR PKS 1209-52.- Mapping of the Cygnus Loop with EXOSAT.- EXOSAT LE-CMA Observations of the Vela Supernova Remnant.- Some Crucial X-Ray Observations - One or Two SNR(s) in Crux?.- Soft X-Ray Emission from Radio Loops I and III Compared.- Synchrotron Nebulae (Invited Paper).- 2-10 keV Spectra of Crab-Like SNR's as Observed by EXOSAT.- Spectral Observation of the Composite Supernova Remnant G29.7-0.3.- Thermal Radiation from a Radio Pulsar PSR 1055-52.- Extragalactic Supernova Remnants (Invited Paper).- The X-Ray Halo of Cygnus X-l.- II / Extragalactic X-Ray Astronomy.- Section V: Active Galactic Nuclei.- X-Ray Timing and Spectral Observations of Active Galactic Nuclei (Invited Paper).- The Soft X-Ray Spectrum of NGC 4151.- Simultaneous EXOSAT-IUE Observations of NGC 4151.- EXOSAT Observations of the BL Lac Object MKN 421.- X-Ray Variability of the Bright BL Lac Object PKS 2155-304.- Variability of BL Lac Objects at X-Ray and Other Frequencies.- H0323+022: Classification as a BL Lac and EXOSAT Coordinated Observations.- MR2251-178: Preliminary Results of an X-Ray Monitoring Programme.- X-Ray Spectral Variability of 3C273.- EXOSAT Observation of the QSO Galaxy Pair 1E0104.2+3153.- EXOSAT Spectra of Some Bright QSO's.- The X-Ray and Optical Variability of the BLRG 3C390.3.- An X-Ray Study of M51 (NGC 5194) and Its Companion (NGC 5195).- Optical Observations of Serendipitous EXOSAT Sources in the Coma Cluster.- Section VI: Clusters of Galaxies.- X-Ray Emission from Clusters of Galaxies (Invited Paper).- EXOSAT 2-10 keV OBSERVATIONS OF M87 and the Virgo Cluster.- Abell 1367 and 1060 Observed with EXOSAT.- EXOSAT Observations of NGC 1399 and NGC 1404: Two Elliptical Galaxies in the Center of the Fornax Cluster.- Spectral Constraints on Models of Gas in Clusters of Galaxies.- Galaxy Clusters: The Missing Mass in Stars.- Section VII: Other Extragalactic Topics.- EXOSAT and Einstein High Resolution Images of the Small Magellanic Cloud.- X-Ray Scattering by Intergalactic Dust.- III.- Section VIII: Instrumentation/General Interest.- The Broad Band X-Ray Telescope.- Possibilities of Investigation of X-Ray Sources on Archival Plates.- Index of Names.- Index of Subjects.

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