... This work essentially consists of using Cepheid distances to calibrate a wide ... the chemical composition dependence of the Cepheid period-luminosity relation, is ... of methods based on the Key Project Cepheid distances, but with the addition of ...
... of the LV population within 8 Mpc, either from the luminosity of Cepheids, the tip of the red giant branch (TRGB), or surface ... The uncertainties of Cepheid, TRGB, and SBF distances are typically around 10%. ...
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Ссылки http://www.atnf.csiro.au/people/Baerbel.Koribalski/LVHIS/papers/Chile-ESOsymposium.pdf -- 828.8 Кб -- 13.09.2007 Похожие документы
... Two other exercises planned for further development include (1) an exercise on radial velocity measurements of binary stars and the search for extrasolar planets; and (2) an exercise on variable stars and the Cepheid distance scale. ...
... to some change within the star itself such as in pulsating stars like the Cepheids ... is the role of some types such as Cepheids and supernovae in distance determination ... Pulsating Variables . Cepheids & Distance . Binary & Variable Links . ...
... Reliable, independent distance estimates for LV galaxies are being gathered either from the luminosity of Cepheids, the tip of the red giant branch, or surface brightness fluctuations. ...
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Ссылки http://www.atnf.csiro.au/people/Baerbel.Koribalski/LVHIS/papers/HI.Survival.Tuscany.pdf -- 70.7 Кб -- 13.09.2007 Похожие документы
... SFH for different tests vs survey depth Geometry indicators The red clump luminosity The periodluminosity relation for RR Lyrae and Cepheids Standard candles in clusters Log(P) vs Ks relation for RR Lyrae stars in the Reticulum Ancillary science Distance ...
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Ссылки http://www.atnf.csiro.au/research/LVmeeting/magsys_pres/sydneyMC160707.pdf -- 1167.4 Кб -- 04.08.2007 Похожие документы
... 2007 (WFPC2) - Cepheids NGC 5128 = Centaurus A Field 0 (center) VLT+FORS2 BVI Field 1 (shell) VLT+FORS1 U+V Box: VLT+ISAAC DSS 25'x25' Field 3 (jet) MagI+CCD U+V+I Field 2 (halo) VLT+FORS1 U+V Box: VLT+ISAAC Recent star formation in the halo Rejkuba et al ...
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Ссылки http://www.atnf.csiro.au/research/cena/documents/presentations/rejkuba.pdf -- 2920.9 Кб -- 16.07.2009 Похожие документы
... the temperature scale based on the spectra and a distance of 2500 pc, the star crossed the population I Cepheid strip between 1972 and 1983, but the period of pulsation of FG Sge was about five times longer than that of Cepheids of the same luminosity ...