Transit least-squares survey

@article{Heller2020TransitLS,
  title={Transit least-squares survey},
  author={Ren{\'e} Heller and Michael Hippke and Jantje Freudenthal and Kai Rodenbeck and Natalie M. Batalha and Stephen T. Bryson},
  journal={Astronomy \& Astrophysics},
  year={2020}
}
The Sun-like star Kepler-160 (KOI-456) has been known to host two transiting planets, Kepler-160 b and c, of which planet c shows substantial transit-timing variations (TTVs). We studied the transit photometry and the TTVs of this system in our search for a suspected third planet. We used the archival Kepler photometry of Kepler-160 to search for additional transiting planets using a combination of our Wōtan detrending algorithm and our transit least-squares detection algorithm. We also used… 
Transit least-squares survey III. A 1.9 R ⊕ transit candidate in the habitable zone of Kepler-160 and a nontransiting planet characterized by transit-timing variations
The Sun-like star Kepler-160 (KOI-456) has been known to host two transiting planets, Kepler-160b and c, of which planet c shows substantial transit-timing variations (TTVs). We studied the transit
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Wōtan: Comprehensive Time-series Detrending in Python
The detection of transiting exoplanets in time-series photometry requires the removal or modeling of instrumental and stellar noise. While instrumental systematics can be reduced using methods such
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Extended use of the Ariel Core Survey Data
  • C. Haswell
  • Geology, Physics
    Experimental Astronomy
  • 2021
The Ariel mission will execute an ambitious survey to measure transit and / or secondary eclipse spectra of the atmospheres of about 1000 exoplanets. I outline here some possible scientific

References

SHOWING 1-10 OF 159 REFERENCES
Transit least-squares survey II. Discovery and validation of 17 new sub- to super-Earth-sized planets in multi-planet systems from K2
The extended Kepler mission (K2) has revealed more than 500 transiting planets in roughly 500000 stellar light curves. All of these were found either with the box least-squares algorithm or by visual
DOPPLER MONITORING OF FIVE K2 TRANSITING PLANETARY SYSTEMS
In an effort to measure the masses of planets discovered by the NASA K2 mission, we have conducted precise Doppler observations of five stars with transiting planets. We present the results of a
Transiting planet candidate from K2 with the longest period
Context. We present the transit and follow-up of a single transit event from Campaign 14 of K2, EPIC248847494b, which has a duration of 54 h and a 0.18% depth. Aims. Using photometric tools and
A PLATEAU IN THE PLANET POPULATION BELOW TWICE THE SIZE OF EARTH
We carry out an independent search of Kepler photometry for small transiting planets with sizes 0.5–8.0 times that of Earth and orbital periods between 5 and 50 days, with the goal of measuring the
Optimized transit detection algorithm to search for periodic transits of small planets
We present a new method to detect planetary transits from time-series photometry, the transit least squares (TLS) algorithm. TLS searches for transit-like features while taking the stellar limb
A STUDY OF THE SHORTEST-PERIOD PLANETS FOUND WITH KEPLER
We present the results of a survey aimed at discovering and studying transiting planets with orbital periods shorter than one day (ultra-short-period, or USP, planets), using data from the Kepler
STELLAR AND PLANETARY PROPERTIES OF K2 CAMPAIGN 1 CANDIDATES AND VALIDATION OF 17 PLANETS, INCLUDING A PLANET RECEIVING EARTH-LIKE INSOLATION
The extended Kepler mission, K2, is now providing photometry of new fields every three months in a search for transiting planets. In a recent study, Foreman-Mackey and collaborators presented a list
A SYSTEMATIC SEARCH FOR TRANSITING PLANETS IN THE K2 DATA
TLDR
This work applies a method for searching K2 light curves for evidence of exoplanets by simultaneously fitting for these systematics and the transit signals of interest, and presents posterior distributions on the properties of each system based strictly on the transit observables.
Precise time series photometry for the Kepler-2.0 mission
The recently approved NASA K2 mission has the potential to multiply by an order of magnitude the number of short-period transiting planets found by Kepler around bright and low-mass stars, and to
A SURVEY FOR VERY SHORT-PERIOD PLANETS IN THE KEPLER DATA
We conducted a search for very short-period transiting objects in the publicly available Kepler data set. Our preliminary survey has revealed four planetary candidates, all with orbital periods less
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