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Cool stars, stellar systems, and the sun: proceedings of the fifth cambridge workshop on cool stars, stellar systems, and the sun, held in boulder, colorado,, Softcover reprint of the original 1st ed. 1987 Proceedings of the Fifth Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun Held in Boulder, Colorado, July 7-11, 1987 Lecture Notes in Physics Series, Vol. 291

Langue : Anglais

Coordonnateurs : Linsky Jeffrey L., Stencel Robert E.

Couverture de l’ouvrage Cool stars, stellar systems, and the sun: proceedings of the fifth cambridge workshop on cool stars, stellar systems, and the sun, held in boulder, colorado,
Recent research on the solar-stellar system has been triggered by a host of recent observational data, in particular from space based observations. For this conference the major topics selected centered on new measurement capabilities (magnetic fields and infrared, with specific emphasis on the new IRAS results), important classes of stars (F stars, M dwarfs and giants, and pre-main sequence stars), and interesting unanswered questions (the nature of nonthermal phenomena, heating processes, angular momentum evolution, and the existence and cause of the corona/wind dividing line). Each section is opened by two or more invited lectures aimed at a wide audience, including graduate students, and continues with some research papers. The proceedings also record the two general discussions on the role of magnetic fields in cool star atmospheres and the role of monitoring programs for studies of cool stars (see also Lecture Notes in Physics Vol. 292).
Stellar magnetic fields: Optical observations and analysis.- The photospheric magnetic fields of cool stars: Recent results of survey and time-variability programs.- Flux tube dynamics and solar/stellar redshift measurements.- Magnetic fields on K and M dwarfs.- Empirical relations between magnetic fluxes and atmospheric radiative losses for cool dwarf stars.- Broadband linear polarization and chromospheric CA II H and K emission in late-type main sequence stars.- Measurements of stellar magnetic fields: Empirical constraints on stellar dynamo and rotational evolution theories.- Calibration on the sun for stellar magnetic fields.- The relation between the CA II K line-core flux density and the magnetic flux density on the sun.- Shifts of the circular zeeman profile in small solar fluxtubes.- Large scale solar and stellar magnetic fields.- The dynamics of solar magnetic flux tubes subjected to resonant foot point shaking.- Magnetic flux tubes as sources of wave generation.- MHD wave energy fluxes for late-type dwarfs.- Nonthermal phenomena in stellar coronae: Evidence from radio observations.- Nonthermal phenomena in stellar coronae: Theory.- Results of a southern radio survey of active chromosphere stars.- Microwave observations of red dwarf flare stars.- A VLA survey of dMe flare stars.- IUE/OPTICAL/VLA flares on AD Leo.- Heating of stellar chromospheres and coronae observational constraints and evidence for saturation.- Heating of chromospheres and coronae present status of theory.- Heating of stellar chromospheres and coronae: Evidence for non-magnetic heating.- Relations between chromospheric and coronal structure, flux-flux correlations and convective zone properties.- Statistical properties of small high-velocity events in the solar transition region.- Velocity variations of small scale solar structures, and physical problems related to the overshoot layers.- High resolution profiles of the CA II infrared triplet lines in late-type active and quiescent dwarfs.- Chromospheric and coronal heating in a volume-limited sample of K dwarfs.- MG II emission lines in the spectra of cool, high luminosity stars.- Synthetic specira for the n-type carbon star TX Psc.- Evidence for an additional source of opacity during the impulsive phase of stellar flares.- Broadening of hydrogen Balmer lines during a flare on the dMe star YZ CMi.- X-ray and optical observations of the flare star Wolf 630 AB and of VB 8 G..- Hydrodynamics of an X-ray flare on Proxima Centauri.- Rotational velocity evolution on and prior to the main sequence.- Post-zero-age main sequence rotation among late-type stars.- Evolutionary models of the rotating sun.- Stellar activity and the rotation of Hyades stars.- Asynchronous rotation in close binary systems with circular orbits.- Activity in stars with shallow convection zones: The early F-type stars.- Atmospheres of stars in the limit of thin and thick convection zones: The M dwarf stars.- Stars with thin and thick convection zones:M giants.- A VLA survey of an X-ray selected sample of F dwarfs.- Activity in warm stars.- The onset of chromospheric activity among the A- and F- type stars.- The coronal dividing line.- Theory of cool loops and the dividing line.- Re-examining the “corona-wind dividing line”: Diagnostics of “non-coronal” atmospheres.- X-rays, color, and the Vaughan-Preston gap.- A search for X-Ray luminous late type stars in NIPSS data.- The Wilson-Bappu relationship - a barometric effect.- Sensitivity of the H? line to expansion, geometrical extent and temperature gradient in the G and K supergiant chromospheres.- Radio continuum emission from the ionized stellar winds of the cool supergiants in zeta aurigae-like systems.- A “flash spectrum” of cool absorption in 31 CYGNI: A direct observation of the reversing layer?.- Synthetic eclipse spectra for 31 CYGNI.- Winds and shells around low-mass supergiants.- VLA observations of rapid 6 cm flux variations in ? ORI.- Exploiting the infrared: IRAS observations of the main sequence.- IRAS and evolved stars.- Infrared spectroscopy of the sun and stars.- Carbon monoxide fundamental bands in late type stars.- Emission features in IRAS LRS spectra of MS,'S and SC stars.- Far infrared circumstellar “Debris” shells of red supergiant stars.- IRAS and cool stellar mass loss.- Time series infrared spectroscopy of long period variables.- Infrared excesses of barium stars.- JHK photometry of CN-rich field giants.- Water masers associated with two carbon stars: EU Andromedae and V778 Cygni.- Red giant stars.- Remarks on red giant and supergiant stars.- The T Tauri stars.- Naked T Tauri stars in II Sco and Ori OBIc.- Accretion as an energy source for pre-main sequence stars.- Energetic winds from low mass young stellar objects.- Microwave observations of nonthermal phenomena in pre-main sequence stars.- Chromospheric variability mechanisms affecting pre-main sequence stars.- Spin-up and spin-down on the way to the main sequence.- Luminosity excesses in low mass young Stellar objects: A statistical study.- Automatic photometric monitoring of cool stars.- The McMath solar-Stellar synoptic program.- The high altitude observatory-Lowell observatory solar-Stellar spectrophotometry project.- Status report on the synop project to monitor stars with high resolution spectroscopy.- Active Phases on II Peg.- The giant spot on II PEG in late 1986.- A large x-ray flare on ?2 Coronae Borealis observed with exosat.- Spectral analysis of APT RS CVn binary light curves.- The short period RS CVN stars: Starspots and fundamental properties.- 45 years of starspot activity on SV CAM.- Doppler “Snapshots”.- A “Helium Flarl” on the active G5 Dwarf Kappa ceti.- Titanium oxide absorption and spot sizes in II PEG, HR 1099, and UX ARI.- Spectroscopic monitoring of RS CVN stars at Kitt Peak using the Penn State Fiber Optic Echelle.- H? and Ca II emission line variability of FK Comae.- The X-ray orbital lightcurve of AR Lac.- The search for very low mass (brown dwarf) stars as wide binaries.- Indirect imaging of active RS CVn stars.- Spectral images of the chromospheres of AR Lacertae.

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