Astronomy:KMTNet

From HandWiki
Korea Microlensing Telescope Network
OrganizationKorea Astronomy and Space Science Institute
WavelengthOptical/Infrared
Built2015
Diameter1.6 m (5 ft 3 in)
Angular resolution0.37 arcsec
Focal length5.16 m (16.9 ft)
Websitehttps://kmtnet.kasi.re.kr/~ulens/
[edit on Wikidata]

The Korea Microlensing Telescope Network (KMTNet; Korean: 외계행성 탐색시스템) is an ongoing wide-field photometric system that aims to discover extrasolar planets using gravitational microlensing.[1][2][3] The system leverages three identical 1.6 m wide-field optical telescopes located at the Cerro-Tololo Inter-American Observatory (CTIO) in Chile,[4] the South African Astronomical Observatory (SAAO) in South Africa,[5] and the Siding Spring Observatory (SSO) in Australia.[6] All three telescopes share a latitude of −30 degrees enabling continuous monitoring of the galactic bulge during 8 months of each year and other targets in the south hemisphere during non-bulge season such as near-earth asteroids and supernovae.[7][8][9] Currently, 232 microlensing planets have been described by KMTNet.[1] The KMNet survey was recently used to show that super-earths are common in Jupiter-like orbits.[10][11]

References

  1. ↑ 1.0 1.1 "KMTNet". https://kmtnet.kasi.re.kr/~ulens/. 
  2. ↑ Henderson, Calen B.; Gaudi, B. Scott; Han, Cheongho; Nataf, David; Skowron, Jan; Penny, Matthew; Gould, Andrew (2015). "KMTNet: A Cold Exoplanet Census Through a Global Microlensing Survey" (in en). American Astronomical Society Meeting Abstracts #225 225: 202.03. Bibcode: 2015AAS...22520203H. https://ui.adsabs.harvard.edu/abs/2015AAS...22520203H/abstract. 
  3. ↑ "Korea Microlensing Telescope Network (KMTNet)" (in en-US). https://m3eng.com/portfolio/korea-microlensing-telescope-network-kmtnet/. 
  4. ↑ info@noirlab.edu. "KMTNet 1.6-meter Telescope" (in en). https://noirlab.edu/public/programs/ctio/kmtnet-16m-telescope/. 
  5. ↑ "KMTnet Site Live View - Sutherland, South Africa". https://kmtnet.saao.ac.za. 
  6. ↑ "KMTNet" (in en). https://rsaa.anu.edu.au/observatories/telescopes/kmtnet. 
  7. ↑ Park, Hong Soo; Moon, Dae-Sik; Zaritsky, Dennis; Kim, Sang Chul; Lee, Youngdae; Cha, Sang-Mok; Lee, Yongseok (2019). "Dwarf Galaxy Discoveries from the KMTNet Supernova Program. II. The NGC 3585 Group and Its Dynamical State" (in en). The Astrophysical Journal 885 (1): 88. doi:10.3847/1538-4357/ab4794. ISSN 0004-637X. Bibcode: 2019ApJ...885...88P. 
  8. ↑ Erasmus, N.; Mommert, M.; Trilling, D. E.; Sickafoose, A. A.; van Gend, C.; Hora, J. L. (2017). "Characterization of Near-Earth Asteroids Using KMTNET-SAAO" (in en). The Astronomical Journal 154 (4): 162. doi:10.3847/1538-3881/aa88be. ISSN 1538-3881. Bibcode: 2017AJ....154..162E. 
  9. ↑ Kim, Seung-Lee; Lee, Chung-Uk; Park, Byeong-Gon; Kim, Dong-Jin; Cha, Sang-Mok; Lee, Yongseok; Han, Cheongho; Chun, Moo-Young et al. (2016-02-29). "Kmtnet: A Network of 1.6 M Wide-Field Optical Telescopes Installed at Three Southern Observatories" (in en). Journal of the Korean Astronomical Society 49 (1): 37–44. doi:10.5303/JKAS.2016.49.1.37. ISSN 1225-4614. Bibcode: 2016JKAS...49...37K. http://koreascience.or.kr/journal/view.jsp?kj=CMHHBA&py=2016&vnc=v49n1&sp=37. 
  10. ↑ "Astronomers find Earth-like exoplanets common across the cosmos" (in en-us). https://news.osu.edu/astronomers-find-earth-like-exoplanets-common-across-the-cosmos/. 
  11. ↑ Zang, Weicheng; Jung, Youn Kil; Yee, Jennifer C.; Hwang, Kyu-Ha; Yang, Hongjing; Udalski, Andrzej; Sumi, Takahiro; Gould, Andrew et al. (2025-04-25). "Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits". Science 388 (6745): 400–404. doi:10.1126/science.adn6088. PMID 40273242. Bibcode: 2025Sci...388..400Z. https://www.science.org/doi/10.1126/science.adn6088. 




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