Outbursts and stellar properties of the classical Be star HD 6226

@article{Richardson2021OutburstsAS,
  title={Outbursts and stellar properties of the classical Be star HD 6226},
  author={Noel D. Richardson and Olivier Thizy and Jon Eric Bjorkman and Alex C. Carciofi and A. C. Rubio and Joshua D Thomas and Karen S. Bjorkman and Jonathan Labadie-Bartz and Matheus Genaro and John P. Wisniewski and Luqian Wang and Douglas R. Gies and S. Drew Chojnowski and Andrea Daly and Thompson Edwards and Carlie Fowler and Allison D. Gullingsrud and Nolan M. Habel and David J James and Emily Kehoe and Heidi Kuchta and Alexis Lane and Anatoly Miroshnichenko and Ashish Mishra and Herbert Pablo and Maurice Peploski and Joshua A. Pepper and Joseph E Rodriguez and Robert J. Siverd and Keivan G. Stassun and Daniel J. Stevens and Jesica L. Trucks and James Windsor and Mackenna L Wood and {\'E}tienne Bertrand and Jean-Jacques Broussat and Erik Bryssinck and Christian Buil and Stephane Charbonnel and Arnold de Bruin and Joe Daglen and Val{\'e}rie Desnoux and James Dull and Olivier Garde and Keith A. Graham and Kevin N. Gurney and Alun Halsey and Patrik Fosanelli and Joan Guarro Fl{\'o} and F. Houpert and Foster James and Christian Kreider and Robin Leadbeater and T. Lester and Dong Li and Alain Maetz and Albert Stiewing and Peter Somogyi and John N. Terry and S. Ubaud and Ulrich Waldschlaeger},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2021}
}
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 Kilodegree Extremely Little Telescope (KELT) survey. We find that the star has a spectral type of B2… Expand

References

SHOWING 1-10 OF 68 REFERENCES
Outbursts and Disk Variability in Be Stars
In order to study the growth and evolution of circumstellar disks around classical Be stars, we analyze optical time-series photometry from the KELT survey with simultaneous infrared and visibleExpand
An Outburst Detected in the Spectrum of Hd 6226
HD 6226 is a bright binary Be star at visual magnitude 6.81 (Hipparcos database). The emission and absorption phases occur in cycles, which are probably not periodic. The suspected period of aboutExpand
Properties and nature of Be stars. XXII. Long-term light and spectral variations of the new bright Be star HD 6226
Photometric and spectroscopic monitoring of the B star resulted in the finding that this object is a new bright Be star with a clear positive correlation between the brightness and emission-lineExpand
THE CORRELATION BETWEEN Hα EMISSION AND VISUAL MAGNITUDE DURING LONG-TERM VARIATIONS IN CLASSICAL Be STARS
Hα equivalent widths and UBV magnitudes are calculated for Be star disk models that grow in size and/or density with time. We show that these simple models are consistent with the known Be starExpand
GAS DISTRIBUTION, KINEMATICS, AND EXCITATION STRUCTURE IN THE DISKS AROUND THE CLASSICAL Be STARS β CANIS MINORIS AND ζ TAURI*
Using CHARA and VLTI near-infrared spectro-interferometry with hectometric baseline lengths (up to 330 m) and with high spectral resolution (up to λ/Δλ = 12, 000), we studied the gas distribution andExpand
Hubble Space Telescope Goddard High Resolution Spectrograph Observations of the Be + sdO Binary ϕ Persei*
Mass transfer during the evolution of intermediate-mass stars in a close binary system can result in a rejuvenated and spun-up secondary star (which may appear as a rapidly rotating Be star) orbitingExpand
Photometric Variability of the Be Star Population
Be stars have generally been characterized by the emission lines in their spectra, and especially the time variability of those spectroscopic features. They are known to also exhibit photometricExpand
Pulsational properties of ten new slowly pulsating B stars
We collected a sample of ten hitherto unidentified SPB stars with the aim of describing their pulsational properties and identifying pulsational modes. Photometric time series data from variousExpand
Stellar parameters of Be stars observed with X-shooter
Aims. The X-shooter archive of several thousand telluric star spectra was skimmed for Be and Be-shell stars to derive the stellar fundamental parameters and statistical properties, in particular forExpand
Short-term variability and mass loss in Be stars III. BRITE and SMEI satellite photometry of 28 Cygni
The BRITE Constellation of nanosatellites obtained mmag photometry of 28 Cygni for 11 months in 2014-2016. Observations with the Solar Mass Ejection Imager in 2003-2010 and 118 H$\alpha$ lineExpand
...
1
2
3
4
5
...