Reddened Dimming of Boyajian's Star Supports Internal Storage of Its "Missing" Flux
arXiv:1712.06637 · doi:10.3847/2515-5172/aaa130
Abstract
Two recent short term dimmings of KIC 8462852 (Boyajian's Star) exhibit clear reddening in the B, r' and i' photometric passbands. We show that the intensity ratios of the three pass bands agree well with cooling of an approximately 6800 K black body by about 30K. This agreement, together with other recent findings on the timing and longer term dimmings of this star, support our previous argument that the star's photometric behavior is caused by internal storage of impeded convective flux, rather than by external sources of obscuration such the ISM or circumstellar material.
References in corpus (7)
- Planet Hunters X. KIC 8462852 - Where's the Flux?
- Families of Plausible Solutions to the Puzzle of Boyajian's Star
- KIC 8462852 Faded at an Average Rate of 0.165+-0.013 Magnitudes Per Century From 1890 To 1989
- KIC 8462852 Faded Throughout the Kepler Mission
- Magnetic Flux Emergence and Decay Rates for Preceder and Follower Sunspots Observed with HMI
- Extinction and the Dimming of KIC 8462852
- An explanation of the missing flux from Boyajian's mysterious star