SIMBAD references

2019AJ....157..192C - Astron. J., 157, 192-192 (2019/May-0)

The curious case of KOI 4: confirming Kepler's first exoplanet detection.

CHONTOS A., HUBER D., LATHAM D.W., BIERYLA A., VAN EYLEN V., BEDDING T.R., BERGER T., BUCHHAVE L.A., CAMPANTE T.L., CHAPLIN W.J., COLMAN I.L., COUGHLIN J.L., DAVIES G., HIRANO T., HOWARD A.W. and ISAACSON H.

Abstract (from CDS):

The discovery of thousands of planetary systems by Kepler has demonstrated that planets are ubiquitous. However, a major challenge has been the confirmation of Kepler planet candidates, many of which still await confirmation. One of the most enigmatic examples is KOI 4.01, Kepler's first discovered planet candidate detection (as KOI 1.01, 2.01, and 3.01 were known prior to launch). Here we present the confirmation and characterization of KOI 4.01 (now Kepler-1658), using a combination of asteroseismology and radial velocities. Kepler-1658 is a massive, evolved subgiant (M* = 1.45 ± 0.06 M, R* = 2.89 ± 0.12 R) hosting a massive (Mp = 5.88 ± 0.47 MJ, Rp = 1.07 ± 0.05 RJ) hot Jupiter that orbits every 3.85 days. Kepler-1658 joins a small population of evolved hosts with short-period (<=100 days) planets and is now the closest known planet in terms of orbital period to an evolved star. Because of its uniqueness and short orbital period, Kepler-1658 is a new benchmark system for testing tidal dissipation and hot Jupiter formation theories. Using all four years of the Kepler data, we constrain the orbital decay rate to be {dot}P <= -0.42 s yr–1, corresponding to a strong observational limit of Q*^′^ >= 4.826 x 103 for the tidal quality factor in evolved stars. With an effective temperature of Teff ∼ 6200 K, Kepler-1658 sits close to the spin-orbit misalignment boundary at ∼6250 K, making it a prime target for follow-up observations to better constrain its obliquity and to provide insight into theories for hot Jupiter formation and migration.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): asteroseismology - planets and satellites: individual KOI 4.01 - stars: individual: Kepler-1658 - techniques: photometric, radial velocities, spectroscopic

VizieR on-line data: <Available at CDS (J/AJ/157/192): table1.dat table5.dat>

Status in Simbad:  being processed

Simbad objects: 28

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2019AJ....157..192C and select 'bookmark this link' or equivalent in the popup menu


2020.02.18-08:16:45

© Université de Strasbourg/CNRS

    • Contact