References Asplund, M., 1997, In Ed., R.F. Wing, The Carbon Star Phenomenon,
IAU Symposium 177, Kluwer, in press Böhm-Vitense, E., 1990, Stellar
Astrophysics, Vol.2, Cambridge. Birdsall, C.K., Langdon, A.B., 1985, Plasma
Physics via ...
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.
00 10g10 ( 4F ( 25um ) / 1F ( 12um ) ) Figure 1 The colour distribution of 395
infrared carbon stars . ... It is therefore possible that the carbon star phenomenon
is restricted in the low mass end by the dredge - up process , and in the high
Well pronounced molecular bands displayed by the spectra of carbon stars make
their detection possible in relatively distant galaxies. However, so far, extensive
surveys for ... 177 (The Carbon Star Phenomenon), No. 190 (New Views of the ...
Author: Monique Spite
Publisher: Springer Science & Business Media
This up-to-date review of the basic elements directly connected to the evolution of galaxies links data about remote galaxies to the observation of very old populations in our own galaxy. Young researchers and well-known specialists discuss the difficulties and remaining uncertainties of the problem.
1 The AGB Star Phenomenon An asymptotic giant branch (AGB) star is defined
as a star that has developed an electron-degenerate carbon-oxygen core after
exhausting central He (except at the high- mass end where this is an oxygen-
Author: Hans Urich Käufl
Publisher: Springer Science & Business Media
Two specialized new instruments for ESO's VLT, VISIR and CRIRES, spawned the idea for this workshop. CRIRES is a dedicated very high resolution infrared spectrograph; VISIR features a high resolution spectroscopic mode. Together, the instruments combine the sensitivity of an 8m-telescope with the now well-established reliability of VLT-facility instruments. High resolution here means that lines in cool stellar atmospheres and HII-regions can be resolved. The astrophysical topics discussed in this rather specialized workshop range from the inner solar system to active galactic nuclei. There are many possibilities for new discoveries with these instruments, but the unique capability, which becomes available through high-resolution infrared spectroscopy, is the observation of molecular rotational-vibrational transitions in many astrophysical environments. Particularly interesting and surprising in this context, many papers on modeling and laboratory spectroscopy at the workshop appear to indicate that astronomical observations are lagging a bit behind in this field. The papers are an interesting mix of reports from existing high resolution facilities, reports on modeling efforts of synthetic spectra and reports on laboratory spectra. In this sense, a fruitful exchange between molecular physics and astronomy was again accomplished and is documented in this volume.
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
Adviser : Professor Robert F . Wing Warm carbon stars have been investigated
with narrow - band photometric ... the Hyades detected ( 50 % ) , and the
observed range of Ly , we may inter that Stellar Coronae are common phenomena in the ...
We find a sample of warm carbon-stars with very cold MgS grains. We discuss
possible causes for this phenomenon. We find no evidence for rapid destruction
of MgS during the planetary nebula phase and conclude that the MgS may
Author: S. Hony
Publisher: Amsterdam University Press
Door middel van gedetailleerde studies aan de infrarood gegevens van oude sterren is het stof rond koolstofrijke Rode Reuzen onderzocht. De aanwezigheid van een aantal nieuwe materialen in de ruimte is ontdekt. Daarmee is een completer beeld van de samenstelling, locatie en het lot van het stof rond koolstofrijke oude sterren verkregen. Daarmee verschaffen de in dit proefschrift gepresenteerde studies een rijker inzicht in het stof rond oude sterren en deze sterren zelf.
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 .
It turned out that in cold stars with T , < 4000° K and an extended convective zone
, an important part is played by dipole and especially monopole sound radiation
... In the spectra of studied carbon stars , no such phenomena were observed .
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.
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
Publisher: Astronomical Society of the pacific
"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 ,
Author: International Astronomical Union. ColloquiumPublish On: 1993
In the case of the more rapidly rotating Boo stars the lines are no longer well
separated . Here we have to perform detailed spectrum synthesis . COWLEY : :
Two points . First , the volatility of carbon depends on the C / O ratio . If this is
Author: International Astronomical Union. Colloquium
Stars of mass M ; < Mup form white dwarfs , and these must contain most of the C
, O and a elements that the star synthesizes . Thus , in a naive picture , these
stars enrich the ISM only with He . However , the phenomenon of carbon stars (
Author: James Binney
Publisher: Princeton University Press
This is a treatment of the phenomenology of galaxies. The text draws on observations of both our own galaxy, the Milky Way, and of external galaxies. It emphasizes the observational basis for current understanding of galactic astromony in the late '90s.
Induced nucleation of carbon dust in red giant stars . Ap . ) , 429 : 285 - 299 ...
The nature of silicon carbide in carbon star outflows . MNRAS , in press ... 177 : The Carbon Star Phenomenon , page in press , Dordrecht , 1996 . Kluwer
Author: Thomas J. Bernatowicz
Publisher: A I P Press
Annotation Contains revised papers from a fall 1996 conference, in sections on the microanalytical study of presolar material from meteorites, theory of nucleosynthesis and stellar evolution, isotopic composition of the galaxy, mixing and grain formation in supernova ejecta, grain formation around stars, the interstellar medium and molecular clouds, presolar cloud collapse and formation of the solar nebula, and survival of presolar grains. Contributors come from related fields of meteoritics, materials science, observational astronomy, and theoretical astrophysics. No index. Annotation c. by Book News, Inc., Portland, Or.
Do inhabitants of the planets responsible for such secondary dust pay special
attention to the star patterns through which their host ... 2001 , 2003 , 2004 ) , but
in general this is a phenomenon that difinitely exists , but the composition is
probably the cause of the ... Oxygen - bearing molecules in the spectra of carbon stars .
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.
Author: International Astronomical UnionPublish On: 2000
IAU Symposia 177 THE CARBON STAR PHENOMENON Ed . R.F. Wing Kluwer
Academic Publishers , Dordrecht , 2000 , ISBN 0-7923-6346-9 200 THE BIRTH
AND EVOLUTION OF BINARY STARS : POSTER PROCEEDINGS B. Reiputh &
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 )