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Thanks to Incogni for sponsoring us. Use the code coolworlds at https://incogni.com/coolworlds to get an exclusive 60% off an annual Incogni plan.Today we explore what could be considered a classic problem in exoplanetary science, yet one which has eluded astronomers for decades. Transit timing variations (TTVs) are seen in thousands in systems, literally wobbling worlds. Yet for the vast majority of cases, we have no solution for the culprit. Today, we present new research from our team that finds analytic expressions for the allowed solution space and reveals the startling existence of an "exoplanet edge".Written & presented by Prof. David Kipping & Daniel Yahalomi. Edited by Jorge Casas & David Kipping. Thumbnail by Helena Valenzuela Widerstrom.→ Support our research: https://www.coolworldslab.com/support→ Get merch: https://teespring.com/stores/cool-worlds-store→ Check out our podcast: www.youtube.com/@CoolWorldsPodcastTHANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan, H. Schiff, J. Cos, J. Oliver, B. Kite, C. Hansen, J. Shamp, R. Chaffee, A. Ortiz, B. McMillan, B. Cartmell, J. Bryant, J. Obioma, M. Zeiler, S. Murray, S. Patterson, C. Kennedy, G. Le Saint, W. Ruf, A. Kochkov, B. Langley, D. Ohman, P. Stevenson, T. Ford & T. Tarrants.REFERENCES► Yahalomi & Kipping 2024, "The Exoplanet Edge: Planets Don't Induce Observable TTVs Faster than Half their Orbital Period", ApJ submitted: https://arxiv.org/abs/2411.09752► Yahalomi & Kipping 2024, "A Map of the Orbital Landscape for Perturbing Planet Solutions for Single-Planet Systems with TTVs", ApJ submitted: https://arxiv.org/abs/2411.10493► Holman & Murray 2005, "The Use of Transit Timing to Detect Extrasolar Planets with Masses as Small as Earth", Science, 307, 1288: https://arxiv.org/abs/astro-ph/0412028► Kipping 2021, "The Exomoon Corridor: Half of all exomoons exhibit TTV frequencies within a narrow window due to aliasing", MNRAS, 500, 1851: https://arxiv.org/abs/2012.00764► Kipping &Teachey 2020, "Impossible moons -- Transit timing effects that cannot be due to an exomoon", SerAJ, 201, 25: https://arxiv.org/abs/2004.04230MUSICLicensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/by/4.0/) or with permission from the artist.0:00 Atlas - Waking Up2:56 Sid Acharya - Searching for Answers5:01 Hill - World of Wonder6:22 Stephen Keech - Selha12:20 Falls - Life in Binary13:40 Hill - The Persecuted16:53 Joachim Heinrich - YCHAPTERS0:00 What are TTVs?5:01 Incogni6:22 The Landscape of TTVs8:41 Tidal Effects12:20 Aliasing14:13 Aliased Conjunctions15:51 Big Picture18:22 Outro & Credits#Exoplanets #Astronomy #CoolWorlds Learn more about your ad choices. Visit megaphone.fm/adchoices
