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This dichotomy makes it difficult to combine the two techniques on a single target at once.<\/jats:p><jats:p><jats:italic>Aims.<\/jats:italic>Simultaneous measurements made by direct and indirect techniques offer the possibility of determining the mass and luminosity of planets and a method of testing formation models. Here, we aim to show how long-baseline interferometric observations guided by radial-velocity can be used in such a way.<\/jats:p><jats:p><jats:italic>Methods.<\/jats:italic>We observed the recently-discovered giant planet<jats:italic>\u03b2<\/jats:italic>Pictoris c with GRAVITY, mounted on the Very Large Telescope Interferometer.<\/jats:p><jats:p><jats:italic>Results.<\/jats:italic>This study constitutes the first direct confirmation of a planet discovered through radial velocity. We find that the planet has a temperature of<jats:italic>T<\/jats:italic>\u2004=\u20041250\u2005\u00b1\u200550 K and a dynamical mass of<jats:italic>M<\/jats:italic>\u2004=\u20048.2\u2005\u00b1\u20050.8\u2006<jats:italic>M<\/jats:italic><jats:sub>Jup<\/jats:sub>. At 18.5\u2005\u00b1\u20052.5 Myr, this puts<jats:italic>\u03b2<\/jats:italic>Pic c close to a \u2018hot start\u2019 track, which is usually associated with formation via disk instability. Conversely, the planet orbits at a distance of 2.7 au, which is too close for disk instability to occur. The low apparent magnitude (<jats:italic>M<\/jats:italic><jats:sub><jats:italic>K<\/jats:italic><\/jats:sub>\u2004=\u200414.3\u2005\u00b1\u20050.1) favours a core accretion scenario.<\/jats:p><jats:p><jats:italic>Conclusions.<\/jats:italic>We suggest that this apparent contradiction is a sign of hot core accretion, for example, due to the mass of the planetary core or the existence of a high-temperature accretion shock during formation.<\/jats:p>","DOI":"10.1051\/0004-6361\/202039039","type":"journal-article","created":{"date-parts":[[2020,9,11]],"date-time":"2020-09-11T18:49:23Z","timestamp":1599850163000},"page":"L2","source":"Crossref","is-referenced-by-count":125,"title":["Direct confirmation of the radial-velocity planet<i>\u03b2<\/i>Pictoris c"],"prefix":"10.1051","volume":"642","author":[{"given":"M.","family":"Nowak","sequence":"first","affiliation":[]},{"given":"S.","family":"Lacour","sequence":"additional","affiliation":[]},{"given":"A.-M.","family":"Lagrange","sequence":"additional","affiliation":[]},{"given":"P.","family":"Rubini","sequence":"additional","affiliation":[]},{"given":"J.","family":"Wang","sequence":"additional","affiliation":[]},{"given":"T.","family":"Stolker","sequence":"additional","affiliation":[]},{"given":"R.","family":"Abuter","sequence":"additional","affiliation":[]},{"given":"A.","family":"Amorim","sequence":"additional","affiliation":[]},{"given":"R.","family":"Asensio-Torres","sequence":"additional","affiliation":[]},{"given":"M.","family":"Baub\u00f6ck","sequence":"additional","affiliation":[]},{"given":"M.","family":"Benisty","sequence":"additional","affiliation":[]},{"given":"J. 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