A dearth of close-in planets around rapidly rotating stars or a dearth of data?. (arXiv:2205.04893v1 [astro-ph.EP])
<a href="http://arxiv.org/find/astro-ph/1/au:+Messias_Y/0/1/0/all/0/1">Y. S. Messias</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Oliveira_L/0/1/0/all/0/1">L. L. A. de Oliveira</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gomes_R/0/1/0/all/0/1">R. L. Gomes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Goncalves_M/0/1/0/all/0/1">M. I. Arruda Gonçalves</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Martins_B/0/1/0/all/0/1">B. L. Canto Martins</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Leao_I/0/1/0/all/0/1">I. C. Leão</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Medeiros_J/0/1/0/all/0/1">J. R. De Medeiros</a>
A dearth of close-in planets orbiting rapid rotators was reported almost a
decade ago. According to this view only slowly spinning stars with rotation
periods longer than 5-10 days would host planets with orbital periods shorter
than 2 or 3 days. This Letter brings an enlarged and more detailed analysis
that led us to the question: Is there really a dearth in that distribution or
is it a dearth of data? For this new analysis, we combined different samples of
Kepler and TESS stars with confirmed planets or planet candidates with measured
stellar rotation periods, using Gaia data to perform an in-depth selection of
1013 planet-hosting main-sequence stars. With the newer, enlarged, and more
refined data, the reported dearth of close-in planets orbiting rapid rotators
tends to disappear, thus suggesting that it may reflect a scarcity of data in
the prior analysis. A two sample statistical test strongly supports our
results, showing that the distribution of close-in planets orbiting rapid
rotators is almost indistinguishable from that for close-in planets orbiting
slow rotators.
A dearth of close-in planets orbiting rapid rotators was reported almost a
decade ago. According to this view only slowly spinning stars with rotation
periods longer than 5-10 days would host planets with orbital periods shorter
than 2 or 3 days. This Letter brings an enlarged and more detailed analysis
that led us to the question: Is there really a dearth in that distribution or
is it a dearth of data? For this new analysis, we combined different samples of
Kepler and TESS stars with confirmed planets or planet candidates with measured
stellar rotation periods, using Gaia data to perform an in-depth selection of
1013 planet-hosting main-sequence stars. With the newer, enlarged, and more
refined data, the reported dearth of close-in planets orbiting rapid rotators
tends to disappear, thus suggesting that it may reflect a scarcity of data in
the prior analysis. A two sample statistical test strongly supports our
results, showing that the distribution of close-in planets orbiting rapid
rotators is almost indistinguishable from that for close-in planets orbiting
slow rotators.
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