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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report on the detection of a new low-mass stellar companion of HD75289, aG0V star that harbors one known radial-velocity planet (Udry et al. 2000).Comparing an image of 2MASS with an image we obtained with SofI at the ESO3.58m NTT three years later, we detected a co-moving companion located21.465+-0.023arcsecs (621+-10AU at 29pc) east of HD75289. A second SofI imagetaken 10 months later confirmed the common proper motion of HD75289B with itshost star. The infrared spectrum and colors of the companion are consistentwith an M2 to M5 main-sequence star at the distance of HD75289. No further(sub)stellar companion down to H = 19mag could be detected. With the SofIdetection limit we can rule out additional stellar companions beyond 140AU andsubstellar companions with masses m > 0.050Msun from 400AU up to 2000AU.Comment: accepted in A&

A low-mass stellar companion of the planet host star HD 75289