Search results for "Stars: individual: HD 171219"

showing 1 items of 1 documents

Photometric and spectroscopic variability of the B5IIIe star HD 171219

2017

We analyzed the star HD 171219, one of the relatively bright Be stars observed in the seismo field of the CoRoT satellite, in order to determine its physical and pulsation characteristics. Classical Be stars are main-sequence objects of mainly B-type, whose spectra show, or have shown at some epoch, Balmer lines in emission and an infrared excess. Both characteristics are attributed to an equatorially concentrated circumstellar disk fed by non-periodic mass-loss episodes (outbursts). Be stars often show nonradial pulsation gravity modes and, as more recently discovered, stochastically excited oscillations. Applying the CLEANEST algorithm to the high-cadence and highly photometrically precis…

Stars: individual: HD 171219Stars: emission-line BeAstrophysics::High Energy Astrophysical PhenomenaFísica matemàticaFOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysics01 natural sciencesSpectral lineStars: early-typesymbols.namesakeearly-type [Stars]Stars: oscillationsStars: rotation0103 physical sciencesAstrophysics::Solar and Stellar AstrophysicsVariation (astronomy)010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)Astrophysics::Galaxy AstrophysicsComputingMilieux_MISCELLANEOUSLine (formation)Physics[PHYS]Physics [physics]Infrared excess010308 nuclear & particles physicsASTROFÍSICA ESTELARBalmer seriesFísicaAstronomy and AstrophysicsoscillationsStars: rotation [Stars]Light curveCiència EnsenyamentStarsAstrophysics - Solar and Stellar Astrophysicsindividual: HD 171219 [Stars]emission-line Be [Stars]13. Climate actionSpace and Planetary ScienceExcited statesymbolsAstrophysics::Earth and Planetary Astrophysics[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
researchProduct