Activity in Cool Star Envelopes

Activity in Cool Star Envelopes PDF Author: O. Havnes
Publisher: Springer Science & Business Media
ISBN: 940092951X
Category : Science
Languages : en
Pages : 356

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Book Description
Proceedings of the Midnight Sun Conference, held in Tromsø, Norway, July 1-8, 1987

Activity in Cool Star Envelopes

Activity in Cool Star Envelopes PDF Author: O. Havnes
Publisher: Springer Science & Business Media
ISBN: 940092951X
Category : Science
Languages : en
Pages : 356

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Book Description
Proceedings of the Midnight Sun Conference, held in Tromsø, Norway, July 1-8, 1987

Solar-Type Activity in Main-Sequence Stars

Solar-Type Activity in Main-Sequence Stars PDF Author: Roald E. Gershberg
Publisher: Springer Science & Business Media
ISBN: 9783540212447
Category : Science
Languages : en
Pages : 520

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Book Description
The first comprehensive monograph on this active and productive field of research investigates solar-type activity amongst the large spectrum of low- and middle-mass main sequence stars, and presents the subject in a systematic and comprehensive fashion.

Reviews in Modern Astronomy

Reviews in Modern Astronomy PDF Author: Gerhard Klare
Publisher: Springer Science & Business Media
ISBN: 3642767508
Category : Science
Languages : en
Pages : 294

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Book Description
The yearbook series Reviews in Modern Astronomy of the Astronomische Gesell three years ago in order to bring the scientific events schaft (AG) was established of the meetings of the society to the attention of the worldwide astronomical community. Reviews in Modern Astronomy is devoted exclusively to the invited reviews, the Karl Schwarzschild lectures, and the highlight contributions from leading scientists reporting on recent progress and scientific achievements at their research institutes. Volume 4 comprises all, eighteen contributions which were presented during the fall meeting of the AG at Preiburg/Breisgau in September 1990. They cover problems in solar research and the solar system as well as the first results of the ROSAT and Hipparcos space missions, stellar and extragalactic studies, and Supernova 1987A in the Large Magellanic Cloud. The Karl Schwarzschild Medal was awarded to Professor Eugene Parker1. His lecture entitled "Convection, Spontaneous Discontinuities, and Stellar Winds and X-Ray Emis·sion" begins this volume.

Flare Stars in Star Clusters, Associations, and the Solar Vicinity

Flare Stars in Star Clusters, Associations, and the Solar Vicinity PDF Author: International Astronomical Union. Symposium
Publisher: Springer Science & Business Media
ISBN: 9780792307716
Category : Science
Languages : en
Pages : 438

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Book Description
Some 70 papers present the flare star problem from both a physical and evolutionary aspect, and represent an interaction between investigators working on flare stars in clusters and associations, and those working on the UV Ceti stars in solar vicinity. The variety of perspectives reveal a physical similarity among several non-stable phenomena, and suggest that the different manifestations of stellar activity result from the release of some unknown kind of energy in the outer layers of young stars. The papers deal not only with different aspects of flare stars, but also with such related objects as T Tauri stars, fluors, and Herbig-Haro objects. Annotation copyrighted by Book News, Inc., Portland, OR

The Sun in Time

The Sun in Time PDF Author: Charles Philip Sonett
Publisher: University of Arizona Press
ISBN: 9780816512973
Category : Science
Languages : en
Pages : 1040

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Book Description
An interdisciplinary approach to solar physics, as eighty-nine contributors trace the evolution of the Sun and provide a review of our current understanding of both its structure and its role in the origin and evolution of the solar system.

Physics Briefs

Physics Briefs PDF Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 790

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Book Description


Reports on Astronomy

Reports on Astronomy PDF Author: Derek McNally
Publisher: Springer Science & Business Media
ISBN: 9401133646
Category : Science
Languages : en
Pages : 616

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Book Description
IAU Transactions are published as a volume corresponding to each General Assembly. Volume A is produced prior to the Assembly and contains Reports on Astronomy, prepared by each Commission President. The intention is to summarize the astronomical results that have affected the work of the Commission since the production of the previous Reports up to a time which is about one year prior to the General Assembly. Volume B is produced after the Assembly and contains accounts of Commission Meetings which were held, together with other material. The reports included in the present volume range from outline summaries to lengthy compilations and references.

Angular Momentum Evolution of Young Stars

Angular Momentum Evolution of Young Stars PDF Author: S Catalano
Publisher: Springer Science & Business Media
ISBN: 9401135800
Category : Science
Languages : en
Pages : 462

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Book Description
This book reports the Proceedings of the NATO Advanced Research Workshop on "An gular Momentum Evolution of Young Stars" held from 17 to 21 September 1990 at Noto, Italy. The workshop had its immediate origin in a discussion about the availability of stel lar rotation data, that took place in 1987 at Viana do Castelo Portugal during the NATO meeting, Formation and Evolution of Low Mass Stars. We recognized that nearly 20 years had passed since the last meeting on stellar rotation and that significant progress in the observation of rotation rates in low mass stars had been made. During the last 20 years, new efficient instrumentation (CCD and photon counting de tectors and echelle spectrographs) and new analysis techniques (profile Fourier analysis) have allowed us to measure rotational velocities as low as 1-2 km/s and to reach low mass stars in young clusters. Even with these advances, rotational velocities of low mass stars would have remained challenging to determine if all single, low mass stars later than GO had rotational velocities of order or less than 10 km/sec. Evidence that this is not always the case was first provided by the photometric variability data obtained by van Leeuwen and Alphenaar for K dwarfs in the Pleiades and more recently by the vsini measurements of low mass stars in several young clusters.

Solar and Stellar Flares

Solar and Stellar Flares PDF Author: Bernhard M. Haisch
Publisher: Springer Science & Business Media
ISBN: 9400910177
Category : Science
Languages : en
Pages : 502

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Book Description
concert at Dinkelspiel Auditorium 'An Evening of Songs and Arias' hosted by Dr Kip Cranna of San Francisco Opera, produced and directed by Elizabeth Tucker, and featuring soprano Ellie Holt Murray, mezzo-soprano Marsha Sims; tenor Richard Walker, and baritone David Taft Kekuewa, with piano accompaniment by Mark Haffner, staff coach for San Francisco Opera. Two scientific themes clearly emerged from this conference: (1) the key to progress in flare research lies in a multispectral approach with as much temporal resolution as the photon fluxes allow; and (2) the key to understanding the physics lies in a dynamic interaction between solar and stellar investigations and investigators. During the eight sessions solar and stellar topics were balanced and intermixed in 33 invited and oral presentations. We are particularly pleased that these proceedings will be the springboard to publication of solar-stellar articles in the journal Solar Physics. In addition, 115 very exciting posters were also displayed and a companion volume containing many of these is available as a publication of the Catania Astrophysical Observatory. We dedicate this book to the Solar Maximum Mission and to the Flare Star Consor tium. To all our solar-stellar friends and colleagues: 'Thank you!' BERNHARD M. HAISCH and MARCELLO RODONO 28 March. 1989 AN OVERVIEW OF SOLAR AND STELLAR FLARE RESEARCH BERNHARD M. HAlSCH Div. 91-30. Bldg. 255. Lockheed Palo Alto Research Laboratory. 3251 Hanover St .• Palo Alto. CA 94304. U.S.A.

The Sun: A Laboratory for Astrophysics

The Sun: A Laboratory for Astrophysics PDF Author: J.T. Schmelz
Publisher: Springer Science & Business Media
ISBN: 9401127654
Category : Science
Languages : en
Pages : 618

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Book Description
As in the days following Skylab, solar physics came to the end of an era when the So lar Maximum Mission re-entered the earth's atmosphere in December 1989. The 1980s had been a pioneering decade not only in space- and ground-based studies of the solar atmosphere (Solar Maximum Mission, Hinotori, VLA, Big Bear, Nanc;ay, etc.) but also in solar-terrestrial relations (ISEE, AMPTE), and solar interior neutrino and helioseismol ogy studies. The pace of development in related areas of theory (nuclear, atomic, MHD, beam-plasma) has been equally impressive. All of these raised tantalizing further questions about the structure and dynamics of the Sun as the prototypical and best observed star. This Advanced Study Institute was timed at a pivotal point between that decade and the realisation of Yohkoh, Ulysses, SOHO, GRANAT, Coronas, and new ground-based optical facilities such as LEST and GONG, so as to teach and inspire the up and coming young solar researchers of the 1990s. The topics, lecturers, and students were all chosen with this goal in mind, and the result seems to have been highly successful by all reports.