Kepler 1647b

Posted : admin On 1/29/2022

Like Jupiter, however, Kepler-1647b is a gas giant, making the planet unlikely to host life. Yet if the planet has large moons, they could potentially be suitable for life. “Habitability aside, Kepler-1647b is important because it is the tip of the iceberg of a theoretically predicted population of large, long-period circumbinary planets. Sadly, we probably won't find Luke Skywalker on Kepler-1647b.

[Submitted on 1 Dec 2015 (v1), last revised 19 May 2016 (this version, v2)]
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Abstract: We report the discovery of a new Kepler transiting circumbinary planet (CBP).This latest addition to the still-small family of CBPs defies the current trendof known short-period planets orbiting near the stability limit of binarystars. Unlike the previous discoveries, the planet revolving around theeclipsing binary system Kepler-1647 has a very long orbital period (~1100 days)and was at conjunction only twice during the Kepler mission lifetime. Due tothe singular configuration of the system, Kepler-1647b is not only thelongest-period transiting CBP at the time of writing, but also one of thelongest-period transiting planets. With a radius of 1.06+/-0.01 RJup it is alsothe largest CBP to date. The planet produced three transits in the light-curveof Kepler-1647 (one of them during an eclipse, creating a syzygy) andmeasurably perturbed the times of the stellar eclipses, allowing us to measureits mass to be 1.52+/-0.65 MJup. The planet revolves around an 11-day periodeclipsing binary consisting of two Solar-mass stars on a slightly inclined,mildly eccentric (e_bin = 0.16), spin-synchronized orbit. Despite having anorbital period three times longer than Earth's, Kepler-1647b is in theconservative habitable zone of the binary star throughout its orbit.

Submission history

From: Veselin Kostov B [view email]
[v1] Tue, 1 Dec 2015 09:37:34 UTC (6,861 KB)
[v2]

Kepler-1647b

Thu, 19 May 2016 18:23:35 UTC (13,225 KB)
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