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• W4229042038 endingPage "A9" @default.
• W4229042038 startingPage "A9" @default.
• W4229042038 abstract "Context. Virtually all known exoplanets reside around stars with M < 2.3 M ⊙ either due to the rapid evaporation of the protostellar disks or to selection effects impeding detections around more massive stellar hosts. Aims. To clarify if this dearth of planets is real or a selection effect, we launched the planet-hunting B-star Exoplanet Abundance STudy (BEAST) survey targeting B stars (M > 2.4 M ⊙ ) in the young (5−20 Myr) Scorpius-Centaurus association by means of the high-contrast spectro-imager SPHERE at the Very Large Telescope. Methods. In this paper we present the analysis of high-contrast images of the massive (M ~ 9 M ⊙ ) star μ 2 Sco obtained within BEAST. We carefully examined the properties of this star, combining data from Gaia and from the literature, and used state-of-the-art algorithms for the reduction and analysis of our observations. Results. Based on kinematic information, we found that μ 2 Sco is a member of a small group which we label Eastern Lower Scorpius within the Scorpius-Centaurus association. We were thus able to constrain its distance, refining in turn the precision on stellar parameters. Around this star we identify a robustly detected substellar companion (14.4 ± 0.8 M J )at a projected separation of 290 ± 10 au, and a probable second similar object (18.5 ± 1.5 M J ) at 21 ± 1 au. The planet-to-star mass ratios of these objects are similar to that of Jupiter to the Sun, and the flux they receive from the star is similar to those of Jupiter and Mercury, respectively. Conclusions. The robust and the probable companions of μ 2 Sco are naturally added to the giant 10.9 M J planet recently discovered by BEAST around the binary b Cen system. While these objects are slightly more massive than the deuterium burning limit, their properties are similar to those of giant planets around less massive stars and they are better reproduced by assuming that they formed under a planet-like, rather than a star-like scenario. Irrespective of the (needed) confirmation of the inner companion, μ 2 Sco is the first star that would end its life as a supernova that hosts such a system. The tentative high frequency of BEAST discoveries is unexpected, and it shows that systems with giant planets or small-mass brown dwarfs can form around B stars. When putting this finding in the context of core accretion and gravitational instability formation scenarios, we conclude that the current modeling of both mechanisms is not able to produce this kind of companion. The completion of BEAST will pave the way for the first time to an extension of these models to intermediate and massive stars." @default.
• W4229042038 created "2022-05-08" @default.
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• W4229042038 date "2022-08-01" @default.
• W4229042038 modified "2023-10-02" @default.
• W4229042038 title "A scaled-up planetary system around a supernova progenitor" @default.
• W4229042038 cites W1486364860 @default.
• W4229042038 cites W1597385910 @default.
• W4229042038 cites W1656352035 @default.
• W4229042038 cites W1801018318 @default.
• W4229042038 cites W1963760477 @default.
• W4229042038 cites W1973398885 @default.
• W4229042038 cites W1985707679 @default.
• W4229042038 cites W1987315013 @default.
• W4229042038 cites W1987782135 @default.
• W4229042038 cites W1997308629 @default.
• W4229042038 cites W2001265656 @default.
• W4229042038 cites W2002047705 @default.
• W4229042038 cites W2006615500 @default.
• W4229042038 cites W2017464195 @default.
• W4229042038 cites W2027501458 @default.
• W4229042038 cites W2029083401 @default.
• W4229042038 cites W2029553946 @default.
• W4229042038 cites W2035538552 @default.
• W4229042038 cites W2036282092 @default.
• W4229042038 cites W2053489392 @default.
• W4229042038 cites W2056494794 @default.
• W4229042038 cites W2057550214 @default.
• W4229042038 cites W2068843564 @default.
• W4229042038 cites W2071806426 @default.
• W4229042038 cites W2093359974 @default.
• W4229042038 cites W2097068720 @default.
• W4229042038 cites W2115449016 @default.
• W4229042038 cites W2126142867 @default.
• W4229042038 cites W2126531330 @default.
• W4229042038 cites W2128132243 @default.
• W4229042038 cites W2130754528 @default.
• W4229042038 cites W2140611633 @default.
• W4229042038 cites W2147778163 @default.
• W4229042038 cites W2150756303 @default.
• W4229042038 cites W2154986370 @default.
• W4229042038 cites W2161457588 @default.
• W4229042038 cites W2259125067 @default.
• W4229042038 cites W2324526116 @default.
• W4229042038 cites W2597993038 @default.
• W4229042038 cites W2606814317 @default.
• W4229042038 cites W2620665718 @default.
• W4229042038 cites W2738408572 @default.
• W4229042038 cites W2761986865 @default.
• W4229042038 cites W2766188842 @default.
• W4229042038 cites W2784828947 @default.
• W4229042038 cites W2796770512 @default.
• W4229042038 cites W2953212186 @default.
• W4229042038 cites W2979968385 @default.
• W4229042038 cites W2991281494 @default.
• W4229042038 cites W2999886882 @default.
• W4229042038 cites W3005436789 @default.
• W4229042038 cites W3012073708 @default.
• W4229042038 cites W3042990893 @default.
• W4229042038 cites W3098029385 @default.
• W4229042038 cites W3098624753 @default.
• W4229042038 cites W3099571084 @default.
• W4229042038 cites W3099953821 @default.
• W4229042038 cites W3100380585 @default.
• W4229042038 cites W3100423672 @default.
• W4229042038 cites W3100456184 @default.
• W4229042038 cites W3100500505 @default.
• W4229042038 cites W3100729127 @default.
• W4229042038 cites W3100930630 @default.
• W4229042038 cites W3100952818 @default.
• W4229042038 cites W3101124249 @default.
• W4229042038 cites W3101812429 @default.
• W4229042038 cites W3101898315 @default.
• W4229042038 cites W3102083771 @default.
• W4229042038 cites W3102469419 @default.
• W4229042038 cites W3102552291 @default.
• W4229042038 cites W3103603022 @default.
• W4229042038 cites W3103992449 @default.
• W4229042038 cites W3104159114 @default.

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