Outbursts and stellar properties of the classical Be star HD 6226

Noel D. Richardson,Olivier Thizy,Jon E. Bjorkman,Alex Carciofi,Amanda C. Rubio,Joshua D. Thomas,Karen S. Bjorkman,Jonathan Labadie-Bartz, Matheus Genaro,John P. Wisniewski,Luqian Wang,Douglas R. Gies,S. Drew Chojnowski, Andrea Daly, Thompson Edwards,Carlie Fowler,Allison D. Gullingsrud,Nolan Habel,David J. James,Emily Kehoe,Heidi Kuchta,Alexis Lane,Anatoly Miroshnichenko,Ashish Mishra,Herbert Pablo,Maurice Peploski,Joshua Pepper,Joseph E. Rodriguez,Robert J. Siverd,Keivan G. Stassun,Daniel J. Stevens,Jesica L. Trucks,James Windsor,Mackenna Wood, Étienne Bertrand, Jean-Jacques Broussat,Erik Bryssinck,Christian Buil,Stéphane Charbonnel,Arnold de Bruin, Joe Daglen,Valerie Desnoux, James Dull,Olivier Garde,Keith Graham, Kevin Gurney, Alun Halsey, Patrik Fosanelli, Joan Guarro Fló,Franck Houpert, Foster James,Christian Kreider, Robin Leadbeater,Tim Lester,Dong Li, Alain Maetz,Albert Stiewing, Peter Somogyi,Jean-Noël Terry, Stéphane Ubaud, Ulrich Waldschlaeger

Monthly Notices of the Royal Astronomical Society（2021）

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摘要

The bright and understudied classical Be star HD 6226 has exhibited multiple outbursts in the last several years during which the star grew a viscous decretion disc. We analyse 659 optical spectra of the system collected from 2017 to 2020, along with a ultraviolet spectrum from the Hubble Space Telescope and high cadence photometry from both Transiting Exoplanet Survey Satellite (TESS) and the Kil...

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关键词

circumstellar matter,stars: early-type,stars: emission-line, Be,stars: individual: HD 6226,stars: oscillations,stars: rotation

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