English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We conduct a multiplicity survey of members of the rho Ophiuchus cloudcomplex with high resolution imaging to characterize the multiple starpopulation of this nearby star forming region and investigate the relationbetween stellar multiplicity and star and planet formation. Our aperturemasking survey reveals the presence of 5 new stellar companions beyond thereach of previous studies, but does not result in the detection of any newsubstellar companions. We find that 43+/-6% of the 114 stars in our survey havestellar mass companions between 1.3-780AU, while 7 (+8 -5)% host brown dwarfcompanions in the same interval. By combining this information with knowledgeof disk-hosting stars, we show that the presence of a close binary companion(separation < 40 AU) significantly influences the lifetime of protoplanetarydisks, a phenomenon previously seen in older star forming regions. At the~1-2Myr age of our Ophiuchus members ~2/3 of close binary systems have losttheir disks, compared to only ~30% of single stars and wide binaries. This hassignificant impact on the formation of giant planets, which are expected torequire much longer than 1 Myr to form via core accretion and thus planetsformed via this pathway should be rare in close binary systems.

Mapping the shores of the brown dwarf desert. IV. Ophiuchus