Effects of [Fe/H] on the properties of Galactic classical Cepheids

Bibcode
2010JPhCS.218a2025K
DOI
10.1088/1742-6596/218/1/012025
Klagyivik, P.; Szabados, László
Bibliographical reference

Journal of Physics: Conference Series, Volume 218, Issue 1, id. 012025 (2010).

Advertised on:
3
2010
Number of authors
2
IAC number of authors
0
Citations
0
Refereed citations
0
Description
Correlations have been searched for between the atmospheric [Fe/H] value and the observed amplitudes of classical Cepheids. Model calculations show that fundamental mode pulsation is unstable for solar like chemical composition between 8 and 10 days, but observations contradict the models. The ratio of the radial velocity and photometric amplitudes, AVRAD/AB, shows a mild metallicity dependence.
Type
Refereed

It may interest you

  • Refereed
    A giant planet transiting a 3-Myr protostar with a misaligned disk
    Astronomers have found more than a dozen planets transiting stars that are 10–40 million years old 1, but younger transiting planets have remained elusive. The lack of such discoveries may be because planets have not fully formed at this age or because our view is blocked by the protoplanetary disk. However, we now know that many outer disks are
    Barber, Madyson G. et al.

    Advertised on:

    11
    2024
    Bibcode
    2024Natur.635..574B
    Citations
    0
  • Refereed
    WEAVE First Light Observations: Origin and Dynamics of the Shock Front in Stephan's Quintet
    We present a detailed study of the large-scale shock front in Stephan's Quintet, a by-product of past and ongoing interactions. Using integral-field spectroscopy from the new William Herschel Telescope Enhanced Area Velocity Explorer (WEAVE), recent 144 MHz observations from the LOFAR Two-metre Sky Survey, and archival data from the Very Large
    Arnaudova, M. I. et al.

    Advertised on:

    12
    2024
    Bibcode
    2024MNRAS.535.2269A
    Citations
    0
  • Refereed
    J-PLUS: Bayesian object classification with a strum of BANNJOS
    Context. With its 12 optical filters, the Javalambre-Photometric Local Universe Survey (J-PLUS) provides an unprecedented multicolor view of the local Universe. The third data release (DR3) covers 3192 deg 2 and contains 47.4 million objects. However, the classification algorithms currently implemented in the J-PLUS pipeline are deterministic and
    del Pino, A. et al.

    Advertised on:

    11
    2024
    Bibcode
    2024A&A...691A.221D
    Citations
    0