This volume includes the full texts of papers given orally at the symposium and abstracts of the posters.
Author: Robert F. Wing
The atmospheres of many stars have chemical compositions that are significantly different from that of the interstellar medium from which they are formed. This symposium considered all kinds of late-type stars showing altered compositions, the carbon stars being simply the best-known of these. All stages of stellar evolution from the main sequence to the ejection of a planetary nebula were considered, with emphasis on the changes that occur on the asymptotic giant branch. The spectroscopic properties of the photospheres and circumstellar envelopes of chemically-peculiar red giant stars, their origins via single-star evolution or mass transfer in binary systems, and the methods currently used to study them were all discussed in detail. This volume includes the full texts of papers given orally at the symposium and abstracts of the posters.
This upper limit would be the main sequence life - time of an FSV star ( 1 . 4 solar
masses : Allen 1963 ) , or approximately 1 . 6x10° years ( Iben 1967 ) . If the 2 S carbon star phenomenon is representative of a stage of stellar evolution beyond
A lower limit would be set by the age of normal main sequence stars found to be
companions to carbon stars in several binary systems . Arguments are presented
to show that the carbon star phenomenon represents a wide range of masses ...
In the spectra of studied carbon stars , no such phenomena were observed . One
cannot exclude the possibility that variation is caused by change in the optical
thickness of the circumstellar shell in which the blended lines arise . That the ...
Author: Zenta Alksne
Recent advances in the study of carbon stars, including the photometry, variability, colour and spectral characteristics of carbon stars, are examined in this text. Topics such as classification, atmospheric modelling, and the determination of chemical composition are discussed.
The Carbon Star Phenomenon , IAU Symp . 177 , ed . R. Wing . In press . 1289
Leeber ... In press 1293 Lloyd Evans , T. Observations of mass loss and
circumstellar matter around cool carbon stars . The Carbon Star Phenomenon ,
IAU Symp .
From July 15 - 19 he attended IAU Colloquium 163 on “ Accretion Phenomena
and Related Outflows " held at Port Douglas ... He gave an invited paper on
Observations of Mass Loss and Circumstellar Matter around Cool Carbon Stars
The fadings seen in R Lep are quite common among the redder carbon Miras ,
and the much redder JHKL color during the fading of R Lep suggests ... stars
show no such short periodicity . ... 177 , The Carbon Star Phenomenon , ed .
Author: Franz Kerschbaum
"These proceedings of an international conference held August 2006 in Vienna, Austria demonstrate the relevance of Asymptotic Giant Branch stars and stellar astrophysics as a whole for our understanding of galactic structure and evolution. The meeting brought together astronomers from the fields of AGB stars, galactic evolution, and stellar populations. What do we know about the various aspects of AGB stars, such as nucleosynthesis and mass loss, that will play a role in our understanding of galaxies? At the same time, what do galactic models need from the AGB star community, and how are AGB starts included in these models? What will be the role of AGB star research within the major aims of astrophysics in the coming decades? These were the main questions we wanted to discuss at this conference. Recent developments in instrumentation such as the Spitzer satellite and current and forthcoming ground-based equipment are enabling detailes studies of individual stars and the exploration of ever more distant stellar systems. AGB stars are among the first targets that can now be resolved in galaxies outside the Local Group. But of equal relevance are the exciting developments that have been achieved in modeling stellar nucleosynthesis, mass loss, and the evolution of galaxies. The book is suitable for researchers and graduate students interested in stellar and extragalactic astrophysics, and in physical processes related to nucleosynthesis, radiation hydrodynamics, pulsation, mass loss, and the chemical evolution of stellar systems." -- supplied by publisher.
355 , 2006 Michaela Kraus and Anatoly S . Miroshnichenko The Unusual
Emission Line Star V 439 Cyg in Berkeley 87 V . F . Polcaro Istituto di Astrofisica
Spaziale e Fisica Cosmica , INAF , Roma , Italy L . Norci Dublin City University ,
Characteristic particle path phenomena occurring with a high degree of
probability after each collision , are regarded as ... Astronomical Inst .
PROBLEMS IN THE SPECTROSCOPY OF COOL CARBON STARS Abstract
Only c89 Miroslav ...
Author: Astronomical Society of IndiaPublish On: 1996
IAU symposium 177 on Carbon star phenomenon held at Antalaya , Turkey , May
27 - 31 1996 Sunetra Giridhar Indian Institute of Astrophysics , Bangalore 560
034 Received 21 June 1996 : Accepted 15 July 1996 Carbon stars are ...
Proceedings of the 15th Cambridge Workshop on Cool Stars, Stellar Systems
and the Sun Eric Stempels. E DY Per September 2004 NaI 012 1 . ... 177 , The Carbon Star Phenomenon , edited by R . F . Wing , Kluwer , Dordrecht , 2000 , pp
Author: Eric Stempels
Publisher: American Institute of Physics
The series of ‘Cool Star’ meetings concentrates on the astrophysics of low-mass stars (with masses similar to that of the Sun and lower), including the Sun. The meeting in St. Andrews, Scotland, was the 15th in this series, and focused in particular on the origin of low-mass stars and their planets, as well as the properties of their atmospheres. This volume provides a comprehensive overview of the science presented by the 350 participants of this meeting. The book is suitable for researchers and graduate students interested in the astrophysics of cool stars and the Sun.
The Dwarf Carbon Star Phenomenon Uffe Gråe Jørgensen , Aleksandra Borysow
, and Susanne Höfner Niels Bohr Institute ... set of computations of model
atmospheres , synthetic spectra , and synthetic colours for dwarf carbon ( dC )
The SMR star is cooler near the surface than are the others . We show that the
effects on spectral indices of such atmospheric cooling in K giants provide a
reasonable explanation of the SMR phenomenon . We speculate that an
increase in ...
The latter phenomenon is currently detected only in M - class Miras . Gorbatskií (
1961 ) developed a theory for the propagation of shock waves in stellar
atmospheres which provides a good explanation for the origin of the emission
The particular mechanism we have in mind for producing the carbon star phenomenon is that suggested by Iben ( 1975 ) . ( d ) Population II Stars with
Rotating Cores We have recently incorporated in equations ( 5 ) and ( 7 ) the
effects of the ...
The aim of the project is to obtain a better understanding of the carbon star phenomenon and the processes involved . In particular , we would like to obtain
reliable mass loss rates and molecular abundances for these objects . This
Author: I. Cherchneff
Publisher: Springer Science & Business Media
Dust and molecules are found in a large variety of astrophysical environments, in particular in the circumstellar material ejected by evolved stars. This book brings together the leading astronomers and astrophysicists in the field of molecular astrophysics and stellar physics to discuss the important issues of dust and molecular formation, the role of solids in circumstellar environments, molecules as probes of circumstellar parameters, the stellar contribution to the enrichment of the Galaxy, and the latest observational data in various wavelength domains, in partiular in the infrared with results from the Infrared Space Observatory. The astrophysical senarios include late-type stars, novae, Wolf-Rayet stars, Luminous Blue Variables and supernovae. Audience: Researchers and graduate students in the fields of stellar physics, stellar evolution and astrochemistry.
explain the observational fact that nonradial pulsations are reported for the
hottest EHe - B stars ( V2205 Oph , V2076 Oph ) , while no nonradial pulsations
are found in R CrB stars . 4 . Conclusion ... 177 , The Carbon Star Phenomenon ,
Author: Klaus Werner
Publisher: Astronomical Society of the pacific
"These are the proceedings of a conference on Hydrogen-Deficient Stars held at the University of Tübingen, Germany, from September 17-21 2007. This conference was the third in a series of international colloquia on this topic. The first one took place in Mysore, India in 1985, and the second one a decade alter, 1995 in Bamberg, Germany. Twelve years later it was considered useful to gather again to discuss the progress and the future directions in this field. At the conference 68 participants from 20 countries presented 25 invited talks, 27 contributed talks, and 16 posters. Hydrogen-deficiency is exhibited by many evolved high-and low-mass stars. Therefore research on hydrogen-deficient stars is quite diverse since such stars are found in almost every region of the Hertzsprung-Russell diagram. The stellar classes discussed in detail at the conference were: R Coronae Borealis stars, extreme helium stars, Wolf-Rayet central stars of planetary nebulae, PG 1159 stars and related objects, white dwarfs of spectral type DO, DB, and DQ, and helium-rich subdwarf O and B stars. Also highlighted were hydrogen-deficient stars in close binary systems (AM Cvn and ultracompact low-mass X-ray binaries), massive Wolf-Rayet Stars and their relation to Type I supernovae and Gamma-ray bursts. The different classes of objects discussed in this volume are grouped by spectral and pulsational characteristics, by evolutionary scenarios such as late helium flashes and double-degenerate mergers, and by links among the classes."--Publisher's website.
... Exhibit : 50 exhibits 962 0518 : Symp 177 on the Carbon Star Phenomenon
Antalya , Turkey 27-31 May 96 Sponsor . ... Ba , and related stars ; fundamental
parameters and models of carbon star atmospheres ; photometric and
Author: International Astronomical Union. SymposiumPublish On: 1999
Sp . Sci 255 , 267 Blöcker T . , Schönberner , D . , 1991 , A & A 244 , L43 Blöcker
T . , Herwig F . , Schönberner D . , El Eid M . , 1998 , The Carbon Star Phenomenon , IAU Symp . 177 , ed . R . Wing , Kluwer , Dordrecht , in press
Boothroyd A . D ...
Author: International Astronomical Union. Symposium
Publisher: Astronomical Society of the pacific
The nonprofit Astronomical Society of the Pacific (ASP) publishes the Conference Series Proceedings as part of its century-old mission to provide resources for astronomers and advance the science of astronomy. Since 1988, the ASP has published the proceedings of astronomical workshops, meetings, colloquia, and symposia to meet the community's demand for affordable, high-quality volumes on current topics in the rapidly expanding fields of astronomy and astrophysics. Since 1998, the Society has also served as publisher for the International Astronomical Union (IAU), adding their Symposia, Highlights, and Transactions to our growing list of publications.For most rapid delivery of each volume, we encourage libraries and astronomy departments to place a Standing Order for the ASP Conference Series and/or the IAU Publications. Standing Orders are shipped directly from the printer and customers receive volumes at the same discounted rates as ASP members (approximately 25-35 ASP volumes each year and/or 5 IAU Symposia). Please refer to the order form to take advantage of this time-saving offer.We encourage all professionals who are sponsoring conferences, workshops, or colloquia to inquire about publishing these proceedings with the ASP. We provide quality volumes at less than half the price of comparable titles from other major publishers, ensuring that the publication will be available to a wider audience of budget-conscious scientists.Held in Montpellier, France, 27 August - 1 September 1998.