Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Michael M. Dworetsky"'
Autor:
Margarida S. Cunha, R. Monier, Friedrich Kupka, Francis Leblanc, Jozef Ziznovsky, Ernst Paunzen, Olga Pintado, Gautier Mathys, Oleg Kochukhov, Nikolai Piskunov, Michael M. Dworetsky
Publikováno v:
Proceedings of the International Astronomical Union. 7:203-206
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8505ad964e63c813d68f14f3711fbfb
https://doi.org/10.1017/s1743921312002815
https://doi.org/10.1017/s1743921312002815
Autor:
S. Hubrig, Angelina Shavrina, Gregg A. Wade, Maryline Briquet, Michael Gruberbauer, Glenn M. Wahlgren, Lyudmila Mashonkina, Tatiana Ryabchikova, L. Cidale, J. Ziznovsky, N. Polosukhina, Kutluay Yüce, Olga Pintado, N. Nunez, Oleg Kochukhov, T. Nomura, J. Silvester, R. O. Gray, Natalia A. Drake, J. C. Sousa, Michael M. Dworetsky, Charles R. Cowley, Jiří Krtička
Publikováno v:
HIGHLIGHTS OF ASTRONOMY VOL 15
The atmospheres of chemically peculiar stars can be highly structured in both the horizontal and vertical dimensions. While most prevalent in the magnetic stars, these structures can also exist in non-magnetic stars. In addition to providing an impor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57f1710be5839328eaca089bd919ab44
https://doi.org/10.1017/s1743921310008550
https://doi.org/10.1017/s1743921310008550
Autor:
Friedrich Kupka, Werner W. Weiss, Jozef Ziznovsky, Nikolai Piskunov, Margarida S. Cunha, Francis Leblanc, Michael M. Dworetsky, Ernst Paunzen, Barry Smalley, R. Monier, Oleg Kochukhov, Hiromoto Shibahashi
Publikováno v:
Proceedings of the International Astronomical Union. 4:245-248
The diversity of physical phenomena embraced by the study of Chemically Peculiar (CP) stars results in an associated research community with interests that are equally diverse. This fact became once more evident during the CP#Ap Workshop that took pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::961038ffa5a4a2d10425807cf4fdccf3
https://doi.org/10.1017/s174392130802560x
https://doi.org/10.1017/s174392130802560x
Autor:
Michael M. Dworetsky
Publikováno v:
Proceedings of the International Astronomical Union. 2004:727-733
The parameter-free model of diffusion in the atmospheres of HgMn stars (Michaud 1986; Michaud et al 1979) predicts that helium should sink below the He II ionization zone in order that diffusion of other elements may take place, and that all HgMn sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf92a6242df789c3a309dd4514d34cb7
https://doi.org/10.1017/s1743921305009658
https://doi.org/10.1017/s1743921305009658
Autor:
Michael M. Dworetsky
Publikováno v:
Proceedings of the International Astronomical Union. 2004:499-504
Some highlights of Symposium 224 on “The A-Star Puzzle” are reviewed and transcribed from the author’s ad hoc oral presentation on the final day of the meeting. Articles referred to are all contained in this volume, hence there are no figures o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f655c53bd34e484c4ed54cde76f31c9d
https://doi.org/10.1017/s1743921304004934
https://doi.org/10.1017/s1743921304004934
Autor:
Michael M. Dworetsky, J. Budaj
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 318:1264-1272
We make new Non-LTE calculations to deduce abundances of neon from visible-region echelle spectra of selected Ne I lines in 7 normal stars and 20 HgMn stars. We find that the best strong blend-free Ne line which can be used at the lower end of the Te
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab5b875e8f782ed67944bc6124f8733e
https://doi.org/10.1046/j.1365-8711.2000.03929.x
https://doi.org/10.1046/j.1365-8711.2000.03929.x
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 303:555-564
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdd13f439c2f4505475ae3587281ac24
https://doi.org/10.1046/j.1365-8711.1999.02252.x
https://doi.org/10.1046/j.1365-8711.1999.02252.x
Publikováno v:
The Astrophysical Journal. 504:533-538
High-resolution spectra have been obtained for the regions of the five strongest optical lines of Pt II in the spectrum of the cool HgMn star HR 7775, which is one of the sharpest-lined HgMn stars known. Model lines have been constructed from the iso
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0fd21ed6411171b5ee36c2de0a3574d
https://doi.org/10.1086/306084
https://doi.org/10.1086/306084
Autor:
K. C. Smith, Michael M. Dworetsky
Publikováno v:
International Astronomical Union Colloquium. 138:131-136
Elemental abundances from recent spectrum-synthesis analyses of the ultraviolet spectra of normal and HgMn-type late-B stars are examined for inter-correlations and for correlations with stellar parameters by use of standard statistical techniques. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1ee7fd1430dc3207257ef72b95b7941
https://doi.org/10.1017/s0252921100020388
https://doi.org/10.1017/s0252921100020388
Autor:
Barry Smalley, Michael M. Dworetsky
Publikováno v:
International Astronomical Union Colloquium. 138:182-186
The atmospheric parameters of metallic-lined (Am) stars have been the subject of much debate. Using spectrophotometric flux fitting, Lane & Lester (1984) obtained values of Teff and log g for several classical Am stars that were systematically lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b1903b03802f5b4f0209d4ec292f18
https://doi.org/10.1017/s0252921100020480
https://doi.org/10.1017/s0252921100020480