Observations of the Ultraviolet-bright Star Y453 in the Globular Cluster M4 (NGC 6121)

We present a spectral analysis of the UV-bright star Y453 in M4. Model fits to the star's optical spectrum yield Teff ∼ 56,000 K. Fits to the star's FUV spectrum, obtained with the Cosmic Origins Spectrograph on board the Hubble Space Telescope, reveal it to be considerably hotter, with Te...

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Detalles Bibliográficos
Autores principales:	Dixon, William V., Chayer, Pierre, Latour, Marilyn, Miller Bertolami, Marcelo Miguel, Benjamin, Robert A.
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2017
Materias:	Ciencias Astronómicas stars: abundances stars: atmospheres stars: individual (NGC 6121 Y453) ultraviolet: stars
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/87767
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

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