PLANETARY CANDIDATES OBSERVED BY KEPLER IV: PLANET SAMPLE FROM Q1–Q8 (22 MONTHS)

By C. Burke, S. Bryson, F. Mullally, J. Rowe, J. Christiansen, S. Thompson, Jeff Coughlin, M. Haas, N. Batalha, Douglas A. Caldwell and 30 more. 2013

206 citations recorded by the source corpus.

We provide updates to the Kepler planet candidate sample based upon nearly two years of high-precision photometry (i.e., Q1–Q8). From an initial list of nearly 13,400 threshold crossing events, 480 new host stars are identified from their flux time series as consistent with hosting transiting planets. Potential transit signals are subjected to further analysis using the pixel-level data, which allows background eclipsing binaries to be identified through small image position shifts during transit. We also re-evaluate Kepler Objects of Interest (KOIs) 1-1609, which were identified early in the mission, using substantially more data to test for background false positives and to find additional multiple systems. Combining the new and previous KOI samples, we provide updated parameters for 2738 Kepler planet candidates distributed across 2017 host stars. From the combined Kepler planet candidates, 472 are new from the Q1–Q8 data examined in this study. The new Kepler planet candidates represent ∼40% of the sample with RP ∼ 1 R⊕ and represent ∼40% of the low equilibrium temperature (Teq < 300 K) sample. We review the known biases in the current sample of Kepler planet candidates relevant to evaluating planet population statistics with the current Kepler planet candidate sample.

Subfields: Astronomy and Astrophysics

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Astronomy and Astrophysics

Citations in the corpus

STELLAR AND PLANETARY PROPERTIES OF K2 CAMPAIGN 1 CANDIDATES AND VALIDATION OF 17 PLANETS, INCLUDING A PLANET RECEIVING EARTH-LIKE INSOLATION (2015, background): “The Kepler telescope (Borucki et al. 2010) has led to a revolution in stellar and planetary astrophysics, with 7305 “objects of interest” and 4173 “planet candidates” discovered to date (Borucki et al. 2011a, 2011b; Batalha et al. 2013; Burke et al. 2014; Mullally et al. 2015; Rowe et al. 2015).”
A SYSTEMATIC SEARCH FOR TRANSITING PLANETS IN THE K2 DATA (2015, background): “Draw the number of transiting planets based on the observed multiplicity distribution of KOIs (Burke et al. 2014).”
The Evaporation Valley in the Kepler Planets (2017, background): “Specifically, the most common type of exoplanets are smaller than Neptune (.4 R⊕, e.g., Youdin 2011; Howard et al. 2012; Batalha et al. 2013; Petigura et al. 2013; Burke et al. 2014; Morton et al. 2016) and have masses of a few to tens of Earth masses.”
TERRESTRIAL PLANET OCCURRENCE RATES FOR THE KEPLER GK DWARF SAMPLE (2015, methodology): “The cumulative KOI catalog for Porb<50 days currently consists of classifications from Batalha et al. (2013), Burke et al. (2014), Rowe et al. (2015), and Mullally et al. (2015).”
Identifying Exoplanets with Deep Learning: A Five-planet Resonant Chain around Kepler-80 and an Eighth Planet around Kepler-90 (2017, background): “As more data became available, additional searches (Cabrera et al. 2014; Burke et al. 2014; Schmitt et al. 2014; Lissauer et al. 2014) identified additional shorter-period and smaller transiting planet candidates, bringing the total number of planets to seven.”
Precise time series photometry for the Kepler-2.0 mission (2014, background): “…has led to the detection of thousands of planet candidates, ranging from super-Jupiter to sub-Earth size, including some located in the habitable zone of their host stars (Borucki et al. 011a,b; Batalha et al. 2013; Burke et al. 2014), and the analysis of the full 4-year dataset is still underway.”
VALIDATION OF KEPLER'S MULTIPLE PLANET CANDIDATES. II. REFINED STATISTICAL FRAMEWORK AND DESCRIPTIONS OF SYSTEMS OF SPECIAL INTEREST (2014, methodology): “As the fraction of planet candidates in multis is higher for more recent catalogs such as the list used for our statistical study and the one presented in Burke et al. (2014), the magnitude of this correction for singles is also larger if the same methodology is used.”
Observations of Transiting Exoplanets with the James Webb Space Telescope (JWST) (2014, background): “…transit survey mission which has revolutionized the study of exoplanets by obtaining high-precision, high-cadence, continuous light curves of ∼150; 000 stars, providing the first statistically significant determination of planet frequency down to objects the size of the Earth (Burke et al. 2014).”
THE OCCURRENCE OF POTENTIALLY HABITABLE PLANETS ORBITING M DWARFS ESTIMATED FROM THE FULL KEPLER DATASET AND AN EMPIRICAL MEASUREMENT OF THE DETECTION SENSITIVITY (2015, background): “We found that 155 putative planet candidates had periods and epochs matching those of known planet candidates or confirmed planets (Borucki et al. 2010, 2011a,b; Batalha et al. 2013; Burke et al. 2014).”
THE ELEVENTH AND TWELFTH DATA RELEASES OF THE SLOAN DIGITAL SKY SURVEY: FINAL DATA FROM SDSS-III (2015, background): “…Elemental Abundances, and False Positives Among the Kepler Planet Hosts: This ancillary project observed 159 Kepler Objects of Interest (KOI; e.g., Burke et al. 2014), 23 M dwarfs, and 25 eclipsing binaries, at high cadence (∼21 observations), over a period of 8 months to study binarity,…”
The Occurrence and Architecture of Exoplanetary Systems (2014, methodology): “Figure 6 shows the period ratios of Kepler multiplanet systems (Burke et al. 2014).”
VALIDATION OF KEPLER'S MULTIPLE PLANET CANDIDATES. III. LIGHT CURVE ANALYSIS AND ANNOUNCEMENT OF HUNDREDS OF NEW MULTI-PLANET SYSTEMS (2014, methodology): “Any multi-planet candidate found in Burke et al. (2014) that is not listed in our sample is a Q1–Q10 discovery.”
A STELLAR-MASS-DEPENDENT DROP IN PLANET OCCURRENCE RATES (2014, methodology): “On average, our rates are slightly higher, reflecting the increased detection efficiency of KOIs in Burke et al. (2014).”
HOW ROCKY ARE THEY? THE COMPOSITION DISTRIBUTION OF KEPLER’S SUB-NEPTUNE PLANET CANDIDATES WITHIN 0.15 AU (2014, methodology): “The number of TCEs can be substantial, on the order of 104 (Tenenbaum et al. 2013, 2014), and a large number are produced by astrophysical variability or instrumental noise (> 80% of Q1-8 TCEs; Burke et al. 2014).”
PLANETARY CANDIDATES OBSERVED BY KEPLER. VI. PLANET SAMPLE FROM Q1–Q16 (47 MONTHS) (2015, methodology): “The project has produced several catalogs of planet candidates (Borucki et al. 2011a,b; Batalha et al. 2013; Burke et al. 2014; Rowe et al. 2015).”
PROBABILISTIC MASS–RADIUS RELATIONSHIP FOR SUB-NEPTUNE-SIZED PLANETS (2015, background): “The Kepler Mission has found thousands of planetary candidates with sizes between that of Earth and Neptune (Mullally et al. 2015; Rowe et al. 2015; Burke et al. 2014; Batalha et al. 2013; Borucki et al. 2011).”
AN ANCIENT EXTRASOLAR SYSTEM WITH FIVE SUB-EARTH-SIZE PLANETS (2015, background): “Kepler has so far successfully yielded over 4,000 exoplanet candidates, of which approximately 40 % are in multiple-planet systems (Borucki et al. 2011a,b; Batalha et al. 2013; Burke et al. 2014).”