KIC 8462852 FADED THROUGHOUT THE KEPLER MISSION
@article{Montet2016KIC8F, title={KIC 8462852 FADED THROUGHOUT THE KEPLER MISSION}, author={Benjamin T. Montet and Joshua D. Simon}, journal={The Astrophysical Journal Letters}, year={2016}, volume={830} }
KIC 8462852 is a superficially ordinary main sequence F star for which Kepler detected an unusual series of brief dimming events. We obtain accurate relative photometry of KIC 8462852 from the Kepler full-frame images, finding that the brightness of KIC 8462852 monotonically decreased over the four years it was observed by Kepler. Over the first ∼1000 days KIC 8462852 faded approximately linearly at a rate of 0.341 ± 0.041% yr−1, for a total decline of 0.9%. KIC 8462852 then dimmed much more…
40 Citations
PHOTOMETRIC AND ASTROMETRIC VAGARIES OF THE ENIGMA STAR KIC 8462852
- Physics, Geology
- 2016
We apply a principal component analysis (PCA)-based pre-whitening method to the entire collection of main Kepler mission long-cadence data for KIC 8462852 spanning four years. This technique removes…
Extinction and the Dimming of KIC 8462852
- Physics
- 2017
To test alternative hypotheses for the behavior of KIC 8462852, we obtained measurements of the star over a wide wavelength range from the UV to the mid-infrared from 2015 October through 2016…
The KIC 8462852 light curve from 2015.75 to 2018.18 shows a variable secular decline
- Physics, GeologyMonthly Notices of the Royal Astronomical Society
- 2018
The star KIC 8462852 (Boyajian's Star) displays both fast dips of up to 20% on time scales of days, plus long-term secular fading by up to 19% on time scales from a year to a century. We report on…
The First Post-Kepler Brightness Dips of KIC 8462852
- Physics, Geology
- 2018
We present a photometric detection of the first brightness dips of the unique variable star KIC 8462852 since the end of the Kepler space mission in 2013 May. Our regular photometric surveillance…
Boyajian’s Star B: The Co-moving Companion to KIC 8462852 A
- Physics, Geology
- 2021
The light curve of KIC 8462852, aka Boyajian’s Star, undergoes deep dips the origin of which remains unclear. A faint star ≈2″ to the east was discovered in Keck/NIRC2 imaging in Boyajian et al., but…
The GALEX View of “Boyajian’s Star” (KIC 8462852)
- Physics, Geology
- 2017
The enigmatic star KIC 8462852, informally known as “Boyajian’s Star,” has exhibited unexplained variability from both short timescale (days) dimming events, and years-long fading in the Kepler…
Recent photometric monitoring of KIC 8462852, the detection of a potential repeat of the Kepler day 1540 dip and a plausible model
- Physics, Geology
- 2018
This paper presents V- and g'-band observations of the F2V star KIC 8462852, which exhibited enigmatic fade patterns in Kepler mission data. We introduce a transit simulation model for interpretation…
KIC 8462852—Physical Modelling of its Occulting Objects and the Growing Mystery Surrounding its Cyclic Fluctuations: A New Assessment
- Physics
- 2017
The Kepler data for KIC 8462852 is re-examined to better understand the 0.88-day, 24.2-day and 48.4-day periodicities noted in connection with the star’s light dimming events, revealing cyclic patterns that seem almost mechanical in nature, as well as recurring number sequences that warrant further investigation.
Where Is the Flux Going? The Long-term Photometric Variability of Boyajian’s Star
- Physics
- 2017
We present ∼800 days of photometric monitoring of Boyajian’s Star (KIC 8462852) from the All-Sky Automated Survey for Supernovae (ASAS-SN) and ∼4000 days of monitoring from the All Sky Automated…
Modelling the KIC8462852 light curves: compatibility of the dips and secular dimming with an exocomet interpretation
- Physics, Geology
- 2018
This paper shows how the dips and secular dimming in the KIC8462852 light curve can originate in circumstellar material distributed around a single elliptical orbit (e.g. exocomets). The expected…
References
SHOWING 1-10 OF 59 REFERENCES
KIC 8462852 FADED AT AN AVERAGE RATE OF 0.164 ± 0.013 MAGNITUDES PER CENTURY FROM 1890 TO 1989
- Physics, Geology
- 2016
KIC 8462852 is a completely ordinary F3 main-sequence star, except that the light curve from Kepler shows episodes of unique and inexplicable day-long dips with up to 20% dimming. Here, I provide a…
IRTF/SPEX OBSERVATIONS OF THE UNUSUAL KEPLER LIGHT CURVE SYSTEM KIC 8462852
- Physics, Geology
- 2015
We have utilized the NASA/IRTF 3 m SpeX instrument’s high-resolution spectral mode to observe and characterize the near-infrared flux emanating from the unusual Kepler light curve system KIC 8462852.…
OPTICAL SETI OBSERVATIONS OF THE ANOMALOUS STAR KIC 8462852
- Physics
- 2015
To explore the hypothesis that KIC 8462852's aperiodic dimming is caused by artificial megastructures in orbit, rather than a natural cause such as cometary fragments in a highly elliptical orbit, we…
POSSIBLE DISINTEGRATING SHORT-PERIOD SUPER-MERCURY ORBITING KIC 12557548
- Physics, Geology
- 2012
We report on the discovery of stellar occultations, observed with Kepler, which recur periodically at 15.685 hr intervals, but which vary in depth from a maximum of 1.3% to a minimum that can be less…
KOI-2700b—A PLANET CANDIDATE WITH DUSTY EFFLUENTS ON A 22 hr ORBIT
- Physics, Geology
- 2013
Kepler planet candidate KOI-2700b (KIC 8639908b), with an orbital period of 21.84 hr, exhibits a distinctly asymmetric transit profile, likely indicative of the emission of dusty effluents, and…
PUSHING THE LIMITS, EPISODE 2: K2 OBSERVATIONS OF EXTRAGALACTIC RR LYRAE STARS IN THE DWARF GALAXY LEO IV
- Physics
- 2015
We present the first observations of extragalactic pulsating stars in the K2 ecliptic survey of the Kepler space telescope. The variability of all three RR Lyrae stars in the dwarf spheroidal galaxy…
KEPLER MISSION STELLAR AND INSTRUMENT NOISE PROPERTIES
- Physics, Geology
- 2011
Kepler mission results are rapidly contributing to fundamentally new discoveries in both the exoplanet and asteroseismology fields. The data returned from Kepler are unique in terms of the number of…
KIC 8462852: THE INFRARED FLUX
- Physics, Geology
- 2015
We analyzed the warm Spitzer/IRAC data of KIC 8462852. We found no evidence of infrared excess at 3.6 μm and a small excess of 0.43 ± 0.18 mJy at 4.5 μm below the 3σ threshold necessary to claim a…
INSTRUMENT PERFORMANCE IN KEPLER's FIRST MONTHS
- Physics, Geology
- 2010
The Kepler Mission relies on precise differential photometry to detect the 80 parts per million (ppm) signal from an Earth–Sun equivalent transit. Such precision requires superb instrument stability…
PHOTOMETRIC VARIABILITY IN KEPLER TARGET STARS. II. AN OVERVIEW OF AMPLITUDE, PERIODICITY, AND ROTATION IN FIRST QUARTER DATA
- Physics, Geology
- 2010
We provide an overview of stellar variability in the first quarter data from the Kepler mission. The intent of this paper is to examine the entire sample of over 150,000 target stars for periodic…