The Way to Circumbinary Planets
The historic quest to detect circumbinary planets (CBPs) dates back to a time before the first extrasolar planets were detected. Eclipsing binary star systems (EBs) were considered prime targets for the detection of CBP transits, as it was considered likely that the planetary orbits would also be close to edge on to our line of sight and so cross (transit) the stellar discs of the eclipsing stars. The presence of CBPs remained however doubtful until the unequivocal detection, by transit, of Kepler-16b and of further CBPs with the NASA Kepler space telescope.
Stellar eclipses were also timed for about a dozen small-mass main-sequence EBs as well. In this chapter we discuss the history of theory and observations in the search for CBPs and the various techniques that have been applied, as well as several methods that might provide results in the future.
HD acknowledges support by grant ESP2015-65712-C5-4-R of the Spanish Secretary of State for R&D&i (MINECO). This contribution has benefited from the use of the NASA Exoplanet Archive and the Extrasolar Planets Encyclopaedia, and the authors acknowledge the people behind these tools.
- Deeg HJ, Doyle LR (2011) Reflected eclipses on circumbinary planets. In: Bouchy F et al (eds) Detection and dynamics of transiting exoplanets, St. Michel l’Observatoire, France. EPJ Web of conferences, 11, id.05005Google Scholar
- Doyle LR, Deeg HJ (2004) Timing detection of eclipsing binary planets and transiting extrasolar moons. In: Norris RP, Stootman FH (eds) Bioastronomy 2002: life among the stars, IAU symposium 213:80Google Scholar
- Doyle LR, Deeg HJ, Jenkins JM et al (1998) Detectability of Jupiter-to-brown-dwarf-mass companions around small eclipsing binary systems. In Rebolo R et al (eds) Brown dwarfs and extrasolar planets, ASP conference series 134:224Google Scholar
- Flammarion C (1874) Les Étoiles doubles. La Nat Revue Sci 37:161Google Scholar
- Flammarion C (1884) Les Terres du Ciel; voyage astronomique sur les autres mondes et description des conditions actuelles de la vie sur les diverses planètes du système solaire; (11th edition), p 757Google Scholar
- Goodricke J (1784) On the periods of the changes of light in the star Algol. In a letter from John Goodricke, Esq. to the Rev. Anthony Shepherd, D.D.F.R.S. Professor of Astronomy at Cambridge. Philos Trans R Soc Lond 74(0):287Google Scholar
- Huygens C (1677) Lettre N° 2104. In: Bosscha J (ed) Œuvres complètes de Christiaan Huygens. Tome VIII: Correspondance 1676–1684. Martinus Nijhoff, The Hague (published 1899), p 32 (in Latin)Google Scholar
- Nelson A, Marzari F (2016) Dynamics of circumstellar disks. III. The case of GG Tau A. ApJ 93:40Google Scholar