DOAJ Open Access 2024

The Components of Cepheid Systems: The FN Vel System

Nancy Remage Evans Pierre Kervella Joanna Kuraszkiewicz H. Moritz Günther Richard I. Anderson +6 lainnya

Abstrak

Cepheid masses continue to be important tests of evolutionary tracks for intermediate-mass stars as well as important predictors of their future fate. For systems where the secondary is a B star, Hubble Space Telescope ultraviolet spectra have been obtained. From these spectra a temperature can be derived, and from this a mass of the companion M _2 . Once Gaia DR4 is available, proper motions can be used to determine the inclination of the orbit. Combining mass of the companion, M _2 , the mass function from the ground-based orbit of the Cepheid and the inclination produces the mass of the Cepheid, M _1 . The Cepheid system FN Vel is used here to demonstrate this approach and what limits can be put on the Cepheid mass for inclination between 50° and 130°.

Topik & Kata Kunci

Astronomy

Penulis (11)

Nancy Remage Evans

Pierre Kervella

Joanna Kuraszkiewicz

H. Moritz Günther

Richard I. Anderson

Charles Proffitt

Alexandre Gallenne

Antoine Mérand

Boris Trahin

Giordano Viviani

Shreeya Shetye

Format Sitasi

APA MLA BibTeX

Evans, N.R., Kervella, P., Kuraszkiewicz, J., Günther, H.M., Anderson, R.I., Proffitt, C. et al. (2024). The Components of Cepheid Systems: The FN Vel System. https://doi.org/10.3847/1538-3881/ad7fea

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Informasi Jurnal

Tahun Terbit: 2024
Sumber Database: DOAJ
DOI: 10.3847/1538-3881/ad7fea
Akses: Open Access ✓