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Strauss, Ryder H.; Leiva, Rodrigo; Keller, John M.; Wilde, Elizabeth; Buie, Marc W.; Weryk, Robert J.; Kavelaars, JJ; Bridges, Terry; Wasserman, Lawrence H.; Trilling, David E.; Ainsworth, Deanna; Anthony, Seth; Baker, Robert; Bardecker, Jerry; Bean, James K; Bock, Stephen; Chase, Stefani; Dean, Bryan; Frei, Chessa; George, Tony; Gill, Harnoorat; Gimple, H. Wm; Givot, Rima; Hopfe, Samuel E.; Cota, Juan M.; Kehrli, Matthew; King, Rebekah; L. Haley, Sean; Lara, Charisma; Lund, Nels; Mattes, Martin L.; McCandless, Keitha; McCrystal, Delsie; McRae, Josh; Rodriguez Melgarejo, Leonardo Emmanuel; Mendoza, Paola; Miller, Alexandra; Norfolk, Ian R.; Palmquist, Bruce; Reaves, Robert D.; Rivard, Megan L; von Schalscha, Michael; Schar, Ramsey; Stoffel, Timothy J; Swanson, Diana J.; Thompson, Doug; Wise, J. A.; Woods, Levi; Yang, Yuehai
The planetary science journal, 02/2021, Letnik: 2, Številka: 1Journal Article
Abstract In 2019, the Research and Education Collaborative Occultation Network (RECON) obtained multiple-chord occultation measurements of two Centaur objects: 2014 YY 49 on 2019 January 28 and 2013 NL 24 on 2019 September 4. RECON is a citizen-science telescope network designed to observe high-uncertainty occultations by outer solar system objects. Adopting circular models for the object profiles, we derive a radius km and a geometric albedo for 2014 YY 49 and a radius km and a geometric albedo for 2013 NL 24 . To the precision of these measurements, no atmosphere or rings are detected for either object. The two objects measured here are among the smallest distant objects measured with the stellar occultation technique. In addition to these geometric constraints, the occultation measurements provide astrometric constraints for these two Centaurs at a higher precision than has been feasible by direct imaging. To supplement the occultation results, we also present an analysis of color photometry from the Pan-STARRS surveys to constrain the rotational light curve amplitudes and spectral colors of these two Centaurs. We recommend that future work focus on photometry to more deliberately constrain the objects’ colors and light curve amplitudes and on follow-on occultation efforts informed by this astrometry.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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