SIMBAD references

2015ApJ...809...25M - Astrophys. J., 809, 25 (2015/August-8)

Stellar and planetary properties of K2 campaign 1 candidates and validation of 17 planets, including a planet receiving earth-like insolation.

MONTET B.T., MORTON T.D., FOREMAN-MACKEY D., JOHNSON J.A., HOGG D.W., BOWLER B.P., LATHAM D.W., BIERYLA A. and MANN A.W.

Abstract (from CDS):

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 of 36 planet candidates orbiting 31 stars in K2 Campaign 1. In this contribution, we present stellar and planetary properties for all systems. We combine ground-based seeing-limited survey data and adaptive optics imaging with an automated transit analysis scheme to validate 21 candidates as planets, 17 for the first time, and identify 6 candidates as likely false positives. Of particular interest is K2-18 (EPIC 201912552), a bright (K = 8.9) M2.8 dwarf hosting a 2.23 ± 0.25 R planet with Teq=272±15 K and an orbital period of 33 days. We also present two new open-source software packages which enable this analysis. The first, isochrones, is a flexible tool for fitting theoretical stellar models to observational data to determine stellar properties using a nested sampling scheme to capture the multimodal nature of the posterior distributions of the physical parameters of stars that may plausibly be evolved. The second is vespa, a new general-purpose procedure to calculate false positive probabilities and statistically validate transiting exoplanets.

Abstract Copyright: © 2015. The American Astronomical Society. All rights reserved.

Journal keyword(s): catalogs - planetary systems - planets and satellites: detection - stars: fundamental parameters

VizieR on-line data: <Available at CDS (J/ApJ/809/25): table1.dat table2.dat table3.dat table4.dat table5.dat>

Nomenclature: EPIC NNNNNNNNN.NN N=36.

Simbad objects: 35

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2023.02.02-15:25:12

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