Absolute parameters of the Algol binary Z Vul

Bibcode
2009NewA...14..528L
DOI
10.1016/j.newast.2009.01.010
Lazaro, C.; Arevalo, M. J.; Almenara, J. M.
Bibliographical reference

New Astronomy, Volume 14, Issue 6, p. 528-538.

Advertised on:
8
2009
Journal
New Astronomy
Description
Spectra in the wavelength range 4230-9150 Å and the first light curves of Z Vul in the infrared J, H and K bands are presented. Our infrared JHK light curves and radial velocities, together with published radial velocity and UBV data are analyzed in order to determine a new set of stellar parameters. This allows us to determine new absolute parameters of the stellar components, the interstellar reddening and the distance to the system. We discuss the rotation of the primary star, finding that must be rotating faster than synchronous. From the visual-infrared photometry we find no evidence of IR excess in the system.
Related projects
Representación de la variable cataclísmica SS Cygni (Chris Moran)
Binary Stars

The study of binary stars is essential to stellar astrophysics. A large number of stars form and evolve within binary systems. Therefore, their study is fundamental to understand stellar and galactic evolution. Particularly relevant is that binary systems are still the best source of precise stellar mass and radius measurements. Research lines

Pablo
Rodríguez Gil
In progress
Helio and Asteroseismology
Helio and Astero-Seismology and Exoplanets Search

The principal objectives of this project are: 1) to study the structure and dynamics of the solar interior, 2) to extend this study to other stars, 3) to search for extrasolar planets using photometric methods (primarily by transits of their host stars) and their characterization (using radial velocity information) and 4) the study of the planetary

Savita
Mathur
In progress
Type
Refereed
Stellar & Interstellar Physics (FEEI)

It may interest you

  • Refereed
    A seesaw model for large neutrino masses in concordance with cosmology

    Cosmological constraints on the sum of the neutrino masses can be relaxed if the number density of active neutrinos is reduced compared to the standard scenario, while at the same time keeping the effective number of neutrino species Neff \approx 3 by introducing a new component of dark radiation. We discuss a UV complete model to realise this idea

    Escudero, Miguel et al.

    Advertised on:

    3
    2023
    Bibcode
    2023JHEP...02..142E
  • Refereed
    Hidden depths in the local Universe: The Stellar Stream Legacy Survey

    Context. Mergers and tidal interactions between massive galaxies and their dwarf satellites are a fundamental prediction of the Lambda-cold dark matter cosmology. These events are thought to provide important observational diagnostics of non-linear structure formation. Stellar streams in the Milky Way and Andromeda are spectacular evidence for

    Martínez-Delgado, David et al.

    Advertised on:

    3
    2023
    Bibcode
    2023A&A...671A.141M
  • Refereed
    A spectral classification system for hydrogen-deficient carbon stars

    Stellar spectral classification has been highly useful in the study of stars. While there is a currently accepted spectral classification system for carbon stars, the subset of hydrogen-deficient carbon (HdC) stars has not been well described by such a system, due predominantly to their rarity and their variability. Here we present the first system

    Crawford, Courtney L. et al.

    Advertised on:

    5
    2023
    Bibcode
    2023MNRAS.521.1674C