The discovery and characterization of (594913) 'Ayló'chaxnim, a kilometre sized asteroid inside the orbit of Venus

Bolin, Bryce T.Division of Physics, Mathematics and Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA (author)

Godkänd;2023;Nivå 0;2023-03-16 (joosat);Funder: Heising-Simons Foundation (grant #2018-0907); National Science Foundation (AST-1440341)
Near-Earth asteroid population models predict the existence of bodies located inside the orbit of Venus. Despite searches up to the end of 2019, none had been found. We report discovery and follow-up observations of (594913) 'Ayló'chaxnim, an asteroid with an orbit entirely interior to Venus. (594913) 'Ayló'chaxnim has an aphelion distance of ∼0.65 au, is ∼2 km in diameter and is red in colour. The detection of such a large asteroid inside the orbit of Venus is surprising given their rarity according to near-Earth asteroid population models. As the first officially numbered and named asteroid located entirely within the orbit of Venus, we propose that the class of interior to Venus asteroids be referred to as 'Ayló'chaxnim asteroids.

Ahumada, T.Department of Astronomy, University of Maryland , College Park, MD 20740, USA (author)
van Dokkum, P.Department of Astronomy, Yale University , New Haven, CT 06511, USA (author)
Fremling, C.Division of Physics, Mathematics and Astronomy, California Institute of Technology , Pasadena, CA 91125, USA (author)
Granvik, MikaelLuleå tekniska universitet,Rymdteknik,Department of Physics, University of Helsinki , FI-00560, Helsinki, Finland(Swepub:ltu)mikgra (author)
Hardegree-Ullman, K. K.Steward Observatory, University of Arizona , Tucson, AZ 85721, USA (author)
Harikane, Y.Institute for Cosmic Ray Research, The University of Tokyo Kashiwa , Chiba 277-8582, Japan; National Astronomical Observatory of Japan, Tokyo, 181-8588, Japan (author)
Purdum, J. N.Caltech Optical Observatory, California Institute of Technology , Pasadena, CA 91125, USA (author)
Serabyn, E.Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109, USA (author)
Southworth, J.Astrophysical Research Institute, Liverpool John Moores University , Liverpool L2 2QP, UK (author)
Zhai, C.Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109, USA (author)
Division of Physics, Mathematics and Astronomy, California Institute of Technology , Pasadena, CA 91125, USA; Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USADepartment of Astronomy, University of Maryland , College Park, MD 20740, USA (creator_code:org_t)

In:Monthly notices of the Royal Astronomical Society. Letters: Oxford University Press517:1, s. L49-L541745-39251745-3933

By the author/editor: Bolin, Bryce T.; Ahumada, T.; van Dokkum, P.; Fremling, C.; Granvik, Mikael; Hardegree-Ullman ...; show more...; Harikane, Y.; Purdum, J. N.; Serabyn, E.; Southworth, J.; Zhai, C.; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.