classical cepheids
The atmosphere, the p-factor and the bright visible circumstellar environment of the prototype of classical Cepheids δ Cep
... of classical Cepheids, is still studied intensively in order to better understand its atmospheric dynamical structure and its ...of Cepheids is necessary to improve the BW method of distance ...
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How rotation affects masses and ages of classical Cepheids
... Abstract. Classical Cepheid variable stars are both sensitive astrophysical laboratories and accurate cosmic distance ...i.e, Cepheids are approximately twice as old as previ- ously ...
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The secret lives of cepheids: a multi-wavelength study of the atmospheres and real-time evolution of classical cepheids
... three Cepheids observed with COS at the time of ...program Cepheids could unambiguously show only the strongest emission lines (if ...of Cepheids, however, which display a wealth of emission lines ...
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Gaia’s Cepheids and RR Lyrae stars and luminosity calibrations based on Tycho-Gaia Astrometric Solution
... for classical Cepheids and RR Lyrae stars are shown in Figures 1 and 2, ...II Cepheids that are evenly distributed on the sky, while they may be relevant for classical ...
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Recent progress in the theoretical modelling of Cepheids and RR Lyrae stars
... and Classical Cepheids as distance indicators and stellar population tracers (see, ...in Cepheids, as powerful guide- lines for improving the description of convection in 1D ...
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Properties of Anomalous and Type II Cepheids in the Small and Large Magellanic Clouds
... Type II Cepheids (T2Cs) are low mass (∼ 0.5 − 0.6 M ) pulsating stars, and we follow the classifi- cation into subgroups given in the OGLE-III catalog: BL Her (BLH): 1−4 days; W Virginis (including peculiar W ...
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Pulsating stars in the VMC survey
... for classical Cepheids pulsating in the fundamental (red), first over- tone (blue), and second overtone (cyan) ...of classical Cepheids across the SMC; points are colour coded by distance as ...
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Time-series surveys and pulsating stars: The near-infrared perspective
... identified classical Cepheids, among OGLE- III Cepheids ([92]), which are located in the flared part of the Galactic disk beyond the ...of Cepheids in the southern hemisphere as presented by ...
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The impact of large-scale, long-term optical surveys on pulsating star research
... hosting Cepheids have several interesting astrophysical ...containing Cepheids are promising tools to calibrate the Cepheid PL relation, since a careful analysis of such systems may provide their accurate ...
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OGLE Cepheids and RR Lyrae stars in the Milky Way
... Galactic Cepheids and RR Lyrae type stars, ...Galactic Cepheids. The list of Cepheids contains classical Cepheids as well as type II ...
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Energetic properties of stellar pulsations across the Hertzsprung-Russell diagram
... Considering the self-excitation mechanism, one has to calculate the work integral, W , which mea- sures the net energy gathered by an oscillation mode during one cycle. This quantity tells us whether excitation can ...
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CEPHEIDS AND RR LYRAE STARS IN THE K2 FIELDS
... Continuous observations of space photometric data revealed that classical Cepheids ex- hibit light curve fluctuations (Derekas et al. 2012). These could possibly be connected to large convective hot spots on ...
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Cepheids with the eyes of photometric space telescopes
... seven classical Cepheids) that fell into the observing fields of CoRoT turned out to be very stable, with almost no signs of variations from one cycle to the next ...
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Araucaria Project: Pulsating stars in binary systems and as distance indicators
... Classical Cepheids are radially pulsating giants and supergiants of Population I. Thanks to their period-luminosity relation they are important distance indicators in the local Universe. They form a ...
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Rethinking 'Classical Physics'
... The examples of James and William Thomson, Steinmetz, Heaviside, Ewing, Hopkinson and Evershed, Einstein, and Planck –figures associated with ‘classical’ and ‘modern physics’ alike– serve to establish the ongoing ...
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Locality, probability and quantum mechanics
... of classical systems. The split between quantum and classical probability is then analysed in terms of "conditional probabilities" in ...between classical and quantum probability (in ...
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A reconstruction of Classical Utilitarianism
... misinterpreted classical utilitarianism have generally accepted without question Moore’s grounds for debate, namely whether or not it is valid to regard pleasure and only pleasure as having intrinsic ...
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The Conceptual Roots of Work Effort in Pre classical and Classical Economic Thought
... Although as was stated there are examples of a negative relationship between wages and work effort, almost all of the authors examined in this paper favour a positive link between the two. More specifically, the ...
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THE CLASSICAL THEORY OF REARRANGEMENTS
... the classical theory of rearrangements dating back to the 19th and early 20th ...each classical result by applying the Alternating Harmonic Series under the different types of rearrangements, and also ...
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Classical Conditioning Notes
... “Little Albert,” the baby behind John Watson's famous 1920 emotional conditioning experiment at Johns Hopkins University, has been identified as Douglas Merritte, the son of a wetnurse n[r] ...
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