The quest for companions to post-common envelope binaries II. NSVS14256825 and HS0705+6700

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10128477" target="_blank" >RIV/00216208:11320/12:10128477 - isvavai.cz</a>

Alternative codes found

RIV/67985815:_____/12:00388381

Result on the web

<a href="http://dx.doi.org/10.1051/0004-6361/201118105" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201118105</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/201118105" target="_blank" >10.1051/0004-6361/201118105</a>

Result language

angličtina

Original language name

The quest for companions to post-common envelope binaries II. NSVS14256825 and HS0705+6700

Original language description

We report new mid-eclipse times of the two close binaries NSVS14256825 and HS0705+6700, harboring an sdB primary and a low-mass main-sequence secondary. Both objects display clear variations in their measured orbital period, which can be explained by theaction of a third object orbiting the binary. If this interpretation is correct, the third object in NSVS14256825 is a giant planet with a mass of roughly 12 M-Jup. For HS0705+6700, we provide evidence that strengthens the case for the suggested periodic nature of the eclipse time variation and reduces the uncertainties in the parameters of the brown dwarf implied by that model. The derived period is 8.4 yr and the mass is 31 M-Jup, if the orbit is coplanar with the binary. This research is part of thePlanetFinders project, an ongoing collaboration between professional astronomers and student groups at high schools.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BN - Astronomy and celestial mechanics, astrophysics

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2012

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

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Volume of the periodical

540

Issue of the periodical within the volume

duben

Country of publishing house

DE - GERMANY

Number of pages

5

Pages from-to

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UT code for WoS article

000303315400022

EID of the result in the Scopus database

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