The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data

Autor: Savita Mathur, Daniel Huber, Jennifer R. Campbell, Megan Shabram, Janice Voss, Jeffrey L. Coughlin, Guillermo Torres, Edward W. Dunham, Bruce D. Clarke, Laurance R. Doyle, Susan E. Mullally, Alan P. Boss, John Troeltzsch, Michael R. Haas, Jeffrey Van Cleve, Andrej Prsa, D. T. Sanderfer, Jeffrey C. Smith, Steve Bryson, Lauren M. Weiss, Christopher E. Henze, William F. Welsh, Elisa V. Quintana, Timothy D. Morton, Avi Shporer, Ravi Kumar Kopparapu, Fergal Mullally, Andrea K. Dupree, Jeffery J. Kolodziejczak, Joseph Catanzarite, Eric B. Ford, Solange V. Ramirez, Forrest R. Girouard, Michael Endl, Dimitar Sasselov, Christopher K. Middour, Travis A. Berger, William D. Cochran, Jørgen Christensen-Dalsgaard, Jessie L. Dotson, James L. Fanson, Natalie M. Batalha, Alan Gould, Christopher Allen, K. Larson, Jie Li, Jon M. Jenkins, Jason H. Steffen, Thomas N. Gautier, John C. Geary, Hema Chandrasekaran, Shawn Seader, Douglas A. Caldwell, Maura Fujieh, Lars A. Buchhave, Victor Silva Aguirre, Robert L. Morris, William J. Borucki, Joseph D. Twicken, David R. Ciardi, David W. Latham, Ronald L. Gilliland, Michelle Kunimoto, Steve B. Howell, Soren Meibom, Hans Kjeldsen, Andrew W. Howard, Khadeejah A. Zamudio, Darin Ragozzine, B. Wohler, William J. Chaplin, Jessie L. Christiansen, D. Pletcher, Samuel N. Quinn, Roger C. Hunter, Matthew J. Holman, Martin Still, Christopher J. Burke, David G. Koch, Geert Barentsen, Eduardo Seperuelo Duarte, Akm Kamal Uddin
Rok vydání: 2020
Předmět:
Zdroj: Bryson, S, Kunimoto, M, Kopparapu, R K, Coughlin, J L, Borucki, W J, Koch, D, Aguirre, V S, Allen, C, Barentsen, G, Batalha, N M, Berger, T, Boss, A, Buchhave, L A, Burke, C J, Caldwell, D A, Campbell, J R, Catanzarite, J, Chandrasekaran, H, Chaplin, W J, Christiansen, J L, Christensen-Dalsgaard, J R, Ciardi, D R, Clarke, B D, Cochran, W D, Dotson, J L, Doyle, L R, Duarte, E S, Dunham, E W, Dupree, A K, Endl, M, Fanson, J L, Ford, E B, Fujieh, M, Gautier, T N, Geary, J C, Gilliland, R L, Girouard, F R, Gould, A, Haas, M R, Henze, C E, Holman, M J, Howard, A W, Howell, S B, Huber, D, Hunter, R C, Jenkins, J M, Kjeldsen, H, Kolodziejczak, J, Larson, K, Latham, D W, Li, J, Mathur, S, Meibom, S R, Middour, C, Morris, R L, Morton, T D, Mullally, F, Mullally, S E, Pletcher, D, Prsa, A, Quinn, S N, Quintana, E V, Ragozzine, D, Ramirez, S V, Sanderfer, D T, Sasselov, D, Seader, S E, Shabram, M, Shporer, A, Smith, J C, Steffen, J H, Still, M, Torres, G, Troeltzsch, J, Twicken, J D, Uddin, A K, Van Cleve, J E, Voss, J, Weiss, L M, Welsh, W F, Wohler, B & Zamudio, K A 2021, ' The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data ', Astronomical Journal, vol. 161, no. 1, 36 . https://doi.org/10.3847/1538-3881/abc418
Bryson, S, Kunimoto, M, Kopparapu, R K, Coughlin, J L, Borucki, W J, Koch, D, Aguirre, V S, Allen, C, Barentsen, G, Batalha, N M, Berger, T, Boss, A, Buchhave, L A, Burke, C J, Caldwell, D A, Campbell, J R, Catanzarite, J, Chandrasekaran, H, Chaplin, W J, Christiansen, J L, Christensen-Dalsgaard, J, Ciardi, D R, Clarke, B D, Cochran, W D, Dotson, J L, Doyle, L R, Duarte, E S, Dunham, E W, Dupree, A K, Endl, M, Fanson, J L, Ford, E B, Fujieh, M, III, T N G, Geary, J C, Gilliland, R L, Girouard, F R, Gould, A, Haas, M R, Henze, C E, Holman, M J, Howard, A W, Howell, S B, Huber, D, Hunter, R C, Jenkins, J M, Kjeldsen, H, Kolodziejczak, J, Larson, K, Latham, D W, Li, J, Mathur, S, Meibom, S, Middour, C, Morris, R L, Morton, T D, Mullally, F, Mullally, S E, Pletcher, D, Prsa, A, Quinn, S N, Quintana, E V, Ragozzine, D, Ramirez, S V, Sanderfer, D T, Sasselov, D, Seader, S E, Shabram, M, Shporer, A, Smith, J C, Steffen, J H, Still, M, Torres, G, Troeltzsch, J, Twicken, J D, Uddin, A K, Cleve, J E V, Voss, J, Weiss, L M, Welsh, W F, Wohler, B & Zamudio, K A 2021, ' The Occurrence of Rocky Habitable-zone Planets around Solar-like Stars from Kepler Data ', Astronomical Journal, vol. 161, no. 1, 36 . https://doi.org/10.3847/1538-3881/abc418
ISSN: 1538-3881
0004-6256
DOI: 10.3847/1538-3881/abc418
Popis: We present occurrence rates for rocky planets in the habitable zones (HZ) of main-sequence dwarf stars based on the Kepler DR25 planet candidate catalog and Gaia-based stellar properties. We provide the first analysis in terms of star-dependent instellation flux, which allows us to track HZ planets. We define $\eta_\oplus$ as the HZ occurrence of planets with radius between 0.5 and 1.5 $R_\oplus$ orbiting stars with effective temperatures between 4800 K and 6300 K. We find that $\eta_\oplus$ for the conservative HZ is between $0.37^{+0.48}_{-0.21}$ (errors reflect 68\% credible intervals) and $0.60^{+0.90}_{-0.36}$ planets per star, while the optimistic HZ occurrence is between $0.58^{+0.73}_{-0.33}$ and $0.88^{+1.28}_{-0.51}$ planets per star. These bounds reflect two extreme assumptions about the extrapolation of completeness beyond orbital periods where DR25 completeness data are available. The large uncertainties are due to the small number of detected small HZ planets. We find similar occurrence rates using both a Poisson likelihood Bayesian analysis and Approximate Bayesian Computation. Our results are corrected for catalog completeness and reliability. Both completeness and the planet occurrence rate are dependent on stellar effective temperature. We also present occurrence rates for various stellar populations and planet size ranges. We estimate with $95\%$ confidence that, on average, the nearest HZ planet around G and K dwarfs is about 6 pc away, and there are about 4 HZ rocky planets around G and K dwarfs within 10 pc of the Sun.
Comment: To appear in The Astronomical Journal
Databáze: OpenAIRE
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