Zobrazeno 1 - 10
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pro vyhledávání: '"Wesselink, P."'
Y~Ophiuchi (Y~Oph) is a classical Cepheid reported to be as dim as a Cepheid of about half its pulsation period, and exhibits a low radial velocity and light-curves amplitude. Our objective is to conduct hydrodynamical pulsation modeling of Y~Oph to
Externí odkaz:
http://arxiv.org/abs/2312.12046
Autor:
Nardetto, N., Gieren, W., Storm, J., Hocde, V., Pietrzynski, G., Kervella, P., Merand, A., Gallenne, A., Graczyk, D., Pilecki, B., Poretti, E., Rainer, M., Zgirski, B., Wielgorski, P., Hajdu, G., Gorski, M., Karczmarek, P., Narloch, W., Taormina, M.
Publikováno v:
A&A 671, A14 (2023)
The Baade-Wesselink (BW) method of distance determination of Cepheids is used to calibrate the distance scale. Various versions of this method are mainly based on interferometry and/or the surface-brightness color relation (SBCR). We quantify the imp
Externí odkaz:
http://arxiv.org/abs/2301.09468
Akademický článek
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Akademický článek
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Autor:
Rastorguev, Alexey S., Lazovik, Yaroslav A., Zabolotskikh, Marina V., Berdnikov, Leonid N., Gorynya, Natalia A.
A new version of the Baade--Becker--Wesselink (hereafter BBW) method is proposed, based on direct spectroscopic measurements of effective temperatures of 45 northern Cepheids, made in different pulsating phases. By comparing the temperature estimates
Externí odkaz:
http://arxiv.org/abs/1911.10413
Autor:
Gieren, W., Storm, J., Konorski, P., Górski, M., Pilecki, B., Thompson, I., Pietrzyński, G., Graczyk, D., Barnes, T. G., Fouqué, P., Nardetto, N., Gallenne, A., Karczmarek, P., Suchomska, K., Wielgórski, P., Taormina, M., Zgirski, B.
Publikováno v:
A&A 620, A99 (2018)
The extragalactic distance scale builds on the Cepheid period-luminosity (PL) relation. In this paper, we want to carry out a strictly differential comparison of the absolute PL relations obeyed by classical Cepheids in the Milky Way (MW), LMC and SM
Externí odkaz:
http://arxiv.org/abs/1809.04073
Autor:
Jurcsik, J., Hajdu, G.
The simultaneous photometric and spectroscopic observations of the RR Lyrae variables in the globular cluster, M3, published in Jurcsik et al. (2017, Paper I) made it possible to perform Baade-Wesselink (BW) analysis of a large sample of Blazhko star
Externí odkaz:
http://arxiv.org/abs/1705.08537
Autor:
Nardetto, N., Poretti, E., Rainer, M., Fokin, A., Mathias, P., Anderson, R. I., Gallenne, A., Gieren, W., Graczyk, D., Kervella, P., Mérand, A., Mourard, D., Neilson, H., Pietrzynski, G., Pilecki, B., Storm, J.
Publikováno v:
A&A 597, A73 (2017)
The projection factor p is the key quantity used in the Baade-Wesselink (BW) method for distance determination; it converts radial velocities into pulsation velocities. Several methods are used to determine p, such as geometrical and hydrodynamical m
Externí odkaz:
http://arxiv.org/abs/1701.01589
Autor:
Anderson, Richard I.
[Abridged] I report the discovery of modulations in radial velocity (RV) curves of four Galactic classical Cepheids and investigate their impact as a systematic uncertainty for Baade-Wesselink distances. Highly precise Doppler measurements were obtai
Externí odkaz:
http://arxiv.org/abs/1406.2605
Autor:
Anderson, Richard I.
I report on the recent discovery of modulation in the radial velocity curves in four classical Cepheids. This discovery may enable significant improvements in the accuracy of Baade-Wesselink distances by revealing a not previously considered systemat
Externí odkaz:
http://arxiv.org/abs/1408.2766