Hippke, Michael; Angerhausen, Daniel (2018). The Year-long Flux Variations in Boyajian's Star Are Asymmetric or Aperiodic. Astrophysical Journal Letters, 854(1), L11. Institute of Physics Publishing IOP 10.3847/2041-8213/aaab44
|
Text
Hippke_2018_ApJL_854_L11.pdf - Published Version Available under License Publisher holds Copyright. Download (567kB) | Preview |
We combine and calibrate publicly available data for Boyajian's star, including photometry from ASAS (SN, V, I), Kepler, Gaia, SuperWASP, and citizen scientist observations (AAVSO, HAO, and Burke-Gaffney). Precise (mmag) photometry covers the years 2006–2017. We show that the year-long flux variations with an amplitude of ≈4% cannot be explained with cyclical symmetric or asymmetric models with periods shorter than 10 years. If the dips are transits, their periods must exceed 10 years, or their structure must evolve significantly during each four-year-long cycle.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Center for Space and Habitability (CSH) 08 Faculty of Science > Physics Institute > Space Research and Planetary Sciences 08 Faculty of Science > Physics Institute 08 Faculty of Science > Physics Institute > NCCR PlanetS |
UniBE Contributor: |
Angerhausen, Daniel |
Subjects: |
500 Science > 520 Astronomy 500 Science > 530 Physics |
ISSN: |
2041-8205 |
Publisher: |
Institute of Physics Publishing IOP |
Language: |
English |
Submitter: |
Danielle Zemp |
Date Deposited: |
21 Apr 2020 08:20 |
Last Modified: |
05 Dec 2022 15:26 |
Publisher DOI: |
10.3847/2041-8213/aaab44 |
BORIS DOI: |
10.7892/boris.126824 |
URI: |
https://boris.unibe.ch/id/eprint/126824 |
Actions (login required)
 |
Edit item |