Zobrazeno 1 - 10
of 2 257
pro vyhledávání: '"Cepheid variable stars"'
We present IRAM 30~m Telescope observations of the CO(1-0) and CO(2-1) emission lines in a sample of eight Cepheid variable stars. The CO(1-0) line is detected in four of the eight targets at a signal-to-noise of $>$3.5 confirming the presence of CO
Externí odkaz:
http://arxiv.org/abs/2302.14075
Autor:
Skowron, D. M., Skowron, J., Mróz, P., Udalski, A., Pietrukowicz, P., Soszyński, I., Szymański, M. K., Poleski, R., Kozłowski, S., Ulaczyk, K., Rybicki, K., Iwanek, P.
The Milky Way is a barred spiral galaxy, with physical properties inferred from various tracers informed by the extrapolation of structures seen in other galaxies. However, the distances of these tracers are measured indirectly and are model-dependen
Externí odkaz:
http://arxiv.org/abs/1806.10653
Autor:
Matsunaga, N., Kawadu, T., Nishiyama, S., Nagayama, T., Kobayashi, N., Tamura, M., Bono, G., Feast, M. W., Nagata, T.
Publikováno v:
Matsunaga et al. Nature, 477, 188-190 (2011)
The nuclear bulge is a region with a radius of about 200 parsecs around the centre of the Milky Way. It contains stars with ages ranging from a few million years to over a billion years, yet its star-formation history and the triggering process for s
Externí odkaz:
http://arxiv.org/abs/1111.6359
Autor:
Benedict, G. Fritz, McArthur, Barbara E., Feast, Michael W., Barnes, Thomas G., Harrison, Thomas E., Patterson, Richard J., Menzies, John W., Bean, Jacob L., Freedman, Wendy L.
Publikováno v:
Astron.J.133:1810-1827,2007; Erratum-ibid.133:2980,2007
(abridged) We present new absolute trigonometric parallaxes and relative proper motions for nine Galactic Cepheid variable stars: l Car, zeta Gem, beta Dor, W Sgr, X Sgr, Y Sgr, FF Aql, T Vul, and RT Aur. We obtain these results with astrometric data
Externí odkaz:
http://arxiv.org/abs/astro-ph/0612465
Autor:
Gray, David F., Stevenson, Kevin B.
Publikováno v:
Publications of the Astronomical Society of the Pacific, 2007 Apr . 119(854), 398-406.
Externí odkaz:
https://www.jstor.org/stable/10.1086/518128
Autor:
Skowron, Dorota M. dszczyg@astrouw.edu.pl, Skowron, Jan, Mr—z, Przemek, Udalski, Andrzej udalski@astrouw.edu.pl, Pietrukowicz, Paweł, Soszyński, Igor, Szymański, Michał K., Poleski, Radosław, Kozłowski, Szymon, Ulaczyk, Krzysztof, Rybicki, Krzysztof, Iwanek, Patryk
Publikováno v:
Science. 8/2/2019, Vol. 365 Issue 6452, p478-482. 5p. 2 Color Photographs, 3 Diagrams.
Publikováno v:
Proceedings of the American Philosophical Society, 1948 Oct . 92(4), 310-323.
Externí odkaz:
https://www.jstor.org/stable/3143361
Autor:
David E. Falkner
Publikováno v:
The Patrick Moore Practical Astronomy Series ISBN: 9783030803087
The story on how Cepheid variable stars became standard candles starts with the Edward Pigott and John Goodricke. In the late eighteenth century, Pigott and Goodricke worked as both collaborators and competitors. The story of John Goodricke and his d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6bc01ee5284dbe77f62cfc2ccffc45f5
https://doi.org/10.1007/978-3-030-80309-4_21
https://doi.org/10.1007/978-3-030-80309-4_21