EXOMOON SPECIAL | Evidence for an Exomoon around Kepler-1625b

Alex Teachey is the first author of our new paper presenting compelling evidence for an exomoon orbiting Kepler-1625b. The embargo on our paper in Science Advances has just lifted and we wanted to give our viewers a Cool Worlds exclusive! In one two videos we've shot, Alex goes through our new observations of Kepler-1625b using the Hubble Space Telescope and explains why we think the exomoon hypothesis is the most viable hypothesis to explain this new data, yet why we still think it's best to think of this as a candidate rather than a discovery.

► Companion Video by David Kipping

► "Did we find an exomoon?" earlier video on Kepler1625

► "An Update on our Exomoon Candidate" earlier video

== Referenced papers ==

► Teachey, A. & Kipping, D., 2018, "Evidence for an Exomoon Orbiting Kepler-1625b", Science Advances

► Teachey, A., Kipping, D. & Schmitt, A., 2018, "HEK. VI. On the Dearth of Galilean Analogs in Kepler, and the Exomoon Candidate Kepler1625b I", Astronomical Journal, 155, 36

► Nesvorný, D., Kipping, D., Buchhave, L., Bakos, G. Á., Hartman, J. & Schmitt, A., 2012, "Discovery and Characterization of a NonTransiting Planet Through Transit Timing Variations", Science, 336, 1133

► Wakeford, H. R., Sing, D. K., Evans, T., Deming, D., Mandell, A., 2016, "Marginalizing Instrument Systematics in HST WFC3 Transit Light Curves", ApJ, 819, 10

== Previous papers by the Hunt for Exomoons with Kepler project ==

► Kipping, D., Schmitt, A., Huang, X., Torres, G., Nesvorný, D., Buchhave, L., Hartman, J. & Bakos, G., 2015, "The Hunt for Exomoons with Kepler (HEK)V. A Survey of 41 Planetary Candidates for Exomoons", ApJ, 813, 14

► Kipping, D., Huang, X., Nesvorny, D., Torres, G., Buchhave, L., Bakos, G. & Schmitt, A., 2014, "The Possible Moon of Kepler90g is a False Positive", ApJL, 799, L14

► Kipping, D., Nesvorný, D., Buchhave, L. A., Hartman, J., Bakos, G. Á. & Schmitt, A. R., 2014, "The Hunt for Exomoons with Kepler (HEK)IV. A Search for Moons around MDwarfs", ApJ, 784, 28

► Kipping, D., Forgan, D., Hartman, J., Nesvorny, D., Bakos, G. Á., Schmitt, A., Buchhave, L. A., 2013, "The Hunt for Exomoons with Kepler (HEK)III. The First Search for an Exomoon around a HabitableZone Planet", ApJ, 777, 134

► Kipping, D., Hartman, J., Buchhave, L., Schmitt, A., Bakos, G. Á. & Nesvorný, D., 2013, "The Hunt for Exomoons with Kepler (HEK)II. Analysis of Seven Viable SatelliteHosting Planet Candidates", ApJ, 770, 101

► Kipping, D., Bakos, G. Á., Buchhave, L., Nesvorný, D. & Schmitt, A., 2012, "The Hunt for Exomoons with Kepler (HEK)I. Description of a New Observational Project", ApJ, 750, 115

== Exomoon detection papers upon which our method is based ==

► Kipping, D., 2011, "LUNAan algorithm for generating dynamic planetmoon transits", MNRAS, 416, 689

► Kipping, D., 2010, "How to weigh a star using a moon", MNRAS, 409, L119

► Kipping, D., Fossey, S. & Campanella, G. 2009, "On the detectability of habitable exomoons with Keplerclass photometry", MNRAS, 400, 398

► Kipping, D., 2009, "Transit timing effects due to an exomoon II", MNRAS, 396, 1797

► Kipping, D., 2009, "Transit timing effects due to an exomoon", MNRAS, 392, 181

== Other links ==

► Sunspot video courtesy of Göran Scharmer, Vasco Henriques, Dan Kiselman, Jaime de la Cruz Rodríguez

► Transiting planet animation courtesy of NASA's Goddard Space Flight Center, ESA/Hubble, Dan Gallagher, Michael Lentz, Chris Smith, Scott Wiessinger, Dan Gallagher, Avi Mandell

► Transmission spectroscopy animation courtesy of exoclimes

► Outro music by Thomas Bergersen "Final Frontier"

► Columbia University Department of Astronomy

► Cool Worlds Lab website

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