A planet within the debris disk around the pre-main-sequence star AU Microscopii. (arXiv:2006.13248v1 [astro-ph.EP])

A planet within the debris disk around the pre-main-sequence star AU Microscopii. (arXiv:2006.13248v1 [astro-ph.EP])
<a href="http://arxiv.org/find/astro-ph/1/au:+Plavchan_P/0/1/0/all/0/1">Peter Plavchan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Barclay_T/0/1/0/all/0/1">Thomas Barclay</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gagne_J/0/1/0/all/0/1">Jonathan Gagné</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gao_P/0/1/0/all/0/1">Peter Gao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cale_B/0/1/0/all/0/1">Bryson Cale</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Matzko_W/0/1/0/all/0/1">William Matzko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dragomir_D/0/1/0/all/0/1">Diana Dragomir</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Quinn_S/0/1/0/all/0/1">Sam Quinn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Feliz_D/0/1/0/all/0/1">Dax Feliz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stassun_K/0/1/0/all/0/1">Keivan Stassun</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Crossfield_I/0/1/0/all/0/1">Ian J. M. Crossfield</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Berardo_D/0/1/0/all/0/1">David A. Berardo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Latham_D/0/1/0/all/0/1">David W. Latham</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tieu_B/0/1/0/all/0/1">Ben Tieu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anglada_Escude_G/0/1/0/all/0/1">Guillem Anglada-Escudé</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ricker_G/0/1/0/all/0/1">George Ricker</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Vanderspek_R/0/1/0/all/0/1">Roland Vanderspek</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Seager_S/0/1/0/all/0/1">Sara Seager</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Winn_J/0/1/0/all/0/1">Joshua N. Winn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Jenkins_J/0/1/0/all/0/1">Jon M. Jenkins</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rinehart_S/0/1/0/all/0/1">Stephen Rinehart</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Krishnamurthy_A/0/1/0/all/0/1">Akshata Krishnamurthy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dynes_S/0/1/0/all/0/1">Scott Dynes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Doty_J/0/1/0/all/0/1">John Doty</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Adams_F/0/1/0/all/0/1">Fred Adams</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Afanasev_D/0/1/0/all/0/1">Dennis A. Afanasev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beichman_C/0/1/0/all/0/1">Chas Beichman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bottom_M/0/1/0/all/0/1">Mike Bottom</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bowler_B/0/1/0/all/0/1">Brendan P. Bowler</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brinkwort_C/0/1/0/all/0/1">Carolyn Brinkwort</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brown_C/0/1/0/all/0/1">Carolyn J. Brown</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cancino_A/0/1/0/all/0/1">Andrew Cancino</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ciardi_D/0/1/0/all/0/1">David R. Ciardi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Clampin_M/0/1/0/all/0/1">Mark Clampin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Clark_J/0/1/0/all/0/1">Jake T. Clark</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Collins_K/0/1/0/all/0/1">Karen Collins</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Davison_C/0/1/0/all/0/1">Cassy Davison</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Foreman_Mackey_D/0/1/0/all/0/1">Daniel Foreman-Mackey</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Furlan_E/0/1/0/all/0/1">Elise Furlan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gaidos_E/0/1/0/all/0/1">Eric J. Gaidos</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Geneser_C/0/1/0/all/0/1">Claire Geneser</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Giddens_F/0/1/0/all/0/1">Frank Giddens</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gilbert_E/0/1/0/all/0/1">Emily Gilbert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hall_R/0/1/0/all/0/1">Ryan Hall</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hellier_C/0/1/0/all/0/1">Coel Hellier</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Henry_T/0/1/0/all/0/1">Todd Henry</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Horner_J/0/1/0/all/0/1">Jonathan Horner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Howard_A/0/1/0/all/0/1">Andrew W. Howard</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Huang_C/0/1/0/all/0/1">Chelsea Huang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Huber_J/0/1/0/all/0/1">Joseph Huber</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kane_S/0/1/0/all/0/1">Stephen R. Kane</a>, et al. (36 additional authors not shown)

AU Microscopii (AU Mic) is the second closest pre main sequence star, at a
distance of 9.79 parsecs and with an age of 22 million years. AU Mic possesses
a relatively rare and spatially resolved3 edge-on debris disk extending from
about 35 to 210 astronomical units from the star, and with clumps exhibiting
non-Keplerian motion. Detection of newly formed planets around such a star is
challenged by the presence of spots, plage, flares and other manifestations of
magnetic activity on the star. Here we report observations of a planet
transiting AU Mic. The transiting planet, AU Mic b, has an orbital period of
8.46 days, an orbital distance of 0.07 astronomical units, a radius of 0.4
Jupiter radii, and a mass of less than 0.18 Jupiter masses at 3 sigma
confidence. Our observations of a planet co-existing with a debris disk offer
the opportunity to test the predictions of current models of planet formation
and evolution.

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