Jagiellonian University Repository

Detection of a planet in the sdB + M dwarf binary system 2M 1938+4603

Detection of a planet in the sdB + M dwarf binary ...

Show full item record

dc.contributor.author Baran, A. S. pl
dc.contributor.author Zoła, Stanisław [SAP11011631] pl
dc.contributor.author Blokesz, A. pl
dc.contributor.author Østensen, R. H. pl
dc.contributor.author Silvotti, R. pl
dc.date.accessioned 2015-07-17T13:56:32Z
dc.date.available 2015-07-17T13:56:32Z
dc.date.issued 2015 pl
dc.identifier.issn 0004-6361 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/13256
dc.language eng pl
dc.title Detection of a planet in the sdB + M dwarf binary system 2M 1938+4603 pl
dc.type JournalArticle pl
dc.abstract.en We analyze 37 months of Kepler photometry of 2M 1938+4603, a binary system with a pulsating hot subdwarf primary and an M-dwarf companion that shows strong reflection effect. We measured the eclipse timings from more than 16 000 primary and secondary eclipses and discovered a periodic variation in the timing signal that we ascribe to a third body in the system. We also discovered a significant long-term trend that may be an evolutionary effect or a hint of more bodies. Upon the assumption that the third body is orbiting in the same plane as the primary, we establish that it must be a Jupiter-mass object orbiting with a period of 416 days at a distance of 0.92 AU. This mass is the lowest among all tertiary components detected in similar systems. pl
dc.subject.en asteroseismology pl
dc.subject.en binaries: eclipsing pl
dc.subject.en space vehicles pl
dc.subject.en stars: oscillations pl
dc.subject.en subdwarfs pl
dc.description.volume 577 pl
dc.identifier.doi 10.1051/0004-6361/201425392 pl
dc.identifier.eissn 1432-0746 pl
dc.title.journal Astronomy and Astrophysics pl
dc.language.container eng pl
dc.affiliation Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut – Obserwatorium Astronomiczne pl
dc.subtype Article pl
dc.identifier.articleid A146 pl
dc.rights.original OTHER; inne; ostateczna wersja wydawcy; po opublikowaniu; 12; pl
.pointsMNiSW [2015 A]: 35

Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)