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KSHV Genome in Saliva, Whole Blood and Kaposi's Sarcoma Biopsy Specimens in Republic of Congo: Phylogenetic Analysis and an APOBEC3B Mutational Signature. [PDF]
J Med VirolMalonga GA +11 more
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Photometric variations of Ap stars
, 1994 The photometric variations of seven Ap stars have been analyzed from observations mainly obtained in the framework of the Long-Term Photometry of Variables project at European Southern Observatory (ESO). New values for the periods and detailed light curves in the uvby system are provided.
Manfroid, Jean, Renson, Pierre
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International Astronomical Union Colloquium, 1976
SummaryFrom the analysis of the observational data of about 100 Ap stars, the radii have been computed under the assumption that Ap are main sequence stars. Radii range from 1.4 to 4.9 solar units. These values are all compatible with the Deutsch's period versus line-width relation.
F.A. Catalano, G. Strazzulla
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SummaryFrom the analysis of the observational data of about 100 Ap stars, the radii have been computed under the assumption that Ap are main sequence stars. Radii range from 1.4 to 4.9 solar units. These values are all compatible with the Deutsch's period versus line-width relation.
F.A. Catalano, G. Strazzulla
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Publications of the Astronomical Society of the Pacific, 1968
Counts of the brighter field stars are used to derive the color-index frequency distribution of the Ap stars. It is shown that approximately ten percent of all the main sequence stars in the interval 0φ19^(Β V) ^ -|-0ip20 are peculiar. The ratio of the number of Ap stars to the number of normal stars is a maximum in the interval 0.09 ^ (B V) 0.00 and ...
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Counts of the brighter field stars are used to derive the color-index frequency distribution of the Ap stars. It is shown that approximately ten percent of all the main sequence stars in the interval 0φ19^(Β V) ^ -|-0ip20 are peculiar. The ratio of the number of Ap stars to the number of normal stars is a maximum in the interval 0.09 ^ (B V) 0.00 and ...
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International Astronomical Union Colloquium, 1976
PhenomenologyThe outstanding observational facts that impress the theorist studying the magnetic Ap stars are as follows:1) The very strong, large-scale magnetic fields, inferred from the integrated Zeeman effect. Typical polar fields are 103- 104gauss, the strongest known being =3.5 x 104gauss.2) The variability of the fields, spectra and luminosities,
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PhenomenologyThe outstanding observational facts that impress the theorist studying the magnetic Ap stars are as follows:1) The very strong, large-scale magnetic fields, inferred from the integrated Zeeman effect. Typical polar fields are 103- 104gauss, the strongest known being =3.5 x 104gauss.2) The variability of the fields, spectra and luminosities,
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On the radii of Ap and Am stars
Astrophysics and Space Science, 1983The radii of several Ap and Am stars have been compared with those of the normal A stars of the Main Sequence. Though the brighter Ap stars have a little larger radii than the Main-Sequence stars, they may not be much different from those of the slightly evolved normal A stars.
G. S. D. Babu, B. S. Shylaja
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Asterseismology for Certain Ap Stars
1986The discovery by Kurtz of phase coherent, rapid oscillations in certain Ap stars holds great promise for the new field of asterseismology. We discuss here a generalized oblique pulsator model for these stars which allows us to accurately compare the effects of rotation and magnetism.
W. Dziembowski, Philip R. Goode
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