SIMBAD references

2014ApJ...791...35L - Astrophys. J., 791, 35 (2014/August-2)

Robotic laser adaptive optics imaging of 715 Kepler exoplanet candidates using Robo-AO.

LAW N.M., MORTON T., BARANEC C., RIDDLE R., RAVICHANDRAN G., ZIEGLER C., JOHNSON J.A., TENDULKAR S.P., BUI K., BURSE M.P., DAS H.K., DEKANY R.G., KULKARNI S., PUNNADI S. and RAMAPRAKASH A.N.

Abstract (from CDS):

The Robo-AO Kepler Planetary Candidate Survey is observing every Kepler planet candidate host star with laser adaptive optics imaging to search for blended nearby stars, which may be physically associated companions and/or responsible for transit false positives. In this paper, we present the results from the 2012 observing season, searching for stars close to 715 Kepler planet candidate hosts. We find 53 companions, 43 of which are new discoveries. We detail the Robo-AO survey data reduction methods including a method of using the large ensemble of target observations as mutual point-spread-function references, along with a new automated companion-detection algorithm designed for large adaptive optics surveys. Our survey is sensitive to objects from ~0.''15 to 2.''5 separation, with magnitude differences up to Δm ~ 6. We measure an overall nearby-star probability for Kepler planet candidates of 7.4%±1.0%, and calculate the effects of each detected nearby star on the Kepler-measured planetary radius. We discuss several Kepler Objects of Interest (KOIs) of particular interest, including KOI-191 and KOI-1151, which are both multi-planet systems with detected stellar companions whose unusual planetary system architecture might be best explained if they are "coincident multiple" systems, with several transiting planets shared between the two stars. Finally, we find 98% confidence evidence that short-period giant planets are two to three times more likely than longer-period planets to be found in wide stellar binaries.

Abstract Copyright:

Journal keyword(s): binaries: close - instrumentation: adaptive optics - instrumentation: high angular resolution - methods: data analysis - methods: observational - planetary systems - planets and satellites: detection - planets and satellites: fundamental parameters

VizieR on-line data: <Available at CDS (J/ApJ/791/35): table2.dat table3.dat table4.dat table5.dat>

Simbad objects: 800

goto Full paper

goto View the reference in ADS

To bookmark this query, right click on this link: simbad:2014ApJ...791...35L and select 'bookmark this link' or equivalent in the popup menu


2021.06.15-14:19:39

© Université de Strasbourg/CNRS

    • Contact