- Main
A planet within the debris disk around the pre-main-sequence star AU Microscopii
- Plavchan, Peter;
- Barclay, Thomas;
- Gagné, Jonathan;
- Gao, Peter;
- Cale, Bryson;
- Matzko, William;
- Dragomir, Diana;
- Quinn, Sam;
- Feliz, Dax;
- Stassun, Keivan;
- Crossfield, Ian JM;
- Berardo, David A;
- Latham, David W;
- Tieu, Ben;
- Anglada-Escudé, Guillem;
- Ricker, George;
- Vanderspek, Roland;
- Seager, Sara;
- Winn, Joshua N;
- Jenkins, Jon M;
- Rinehart, Stephen;
- Krishnamurthy, Akshata;
- Dynes, Scott;
- Doty, John;
- Adams, Fred;
- Afanasev, Dennis A;
- Beichman, Chas;
- Bottom, Mike;
- Bowler, Brendan P;
- Brinkworth, Carolyn;
- Brown, Carolyn J;
- Cancino, Andrew;
- Ciardi, David R;
- Clampin, Mark;
- Clark, Jake T;
- Collins, Karen;
- Davison, Cassy;
- Foreman-Mackey, Daniel;
- Furlan, Elise;
- Gaidos, Eric J;
- Geneser, Claire;
- Giddens, Frank;
- Gilbert, Emily;
- Hall, Ryan;
- Hellier, Coel;
- Henry, Todd;
- Horner, Jonathan;
- Howard, Andrew W;
- Huang, Chelsea;
- Huber, Joseph;
- Kane, Stephen R;
- Kenworthy, Matthew;
- Kielkopf, John;
- Kipping, David;
- Klenke, Chris;
- Kruse, Ethan;
- Latouf, Natasha;
- Lowrance, Patrick;
- Mennesson, Bertrand;
- Mengel, Matthew;
- Mills, Sean M;
- Morton, Tim;
- Narita, Norio;
- Newton, Elisabeth;
- Nishimoto, America;
- Okumura, Jack;
- Palle, Enric;
- Pepper, Joshua;
- Quintana, Elisa V;
- Roberge, Aki;
- Roccatagliata, Veronica;
- Schlieder, Joshua E;
- Tanner, Angelle;
- Teske, Johanna;
- Tinney, CG;
- Vanderburg, Andrew;
- von Braun, Kaspar;
- Walp, Bernie;
- Wang, Jason;
- Wang, Sharon Xuesong;
- Weigand, Denise;
- White, Russel;
- Wittenmyer, Robert A;
- Wright, Duncan J;
- Youngblood, Allison;
- Zhang, Hui;
- Zilberman, Perri
- et al.
Published Web Location
https://doi.org/10.1038/s41586-020-2400-zAbstract
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 years1. AU Mic possesses a relatively rare2 and spatially resolved3 edge-on debris disk extending from about 35 to 210 astronomical units from the star4, and with clumps exhibiting non-Keplerian motion5-7. 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 star8,9. 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 3σ 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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