A contact binary satellite of the asteroid (152830) Dinkinesh

Harold F. Levison; Simone Marchi; Keith S. Noll; John R. Spencer; Thomas S. Statler; James F. Bell; Edward B. Bierhaus; Richard Binzel; William F. Bottke; Daniel Britt; Michael E. Brown; Marc W. Buie; Philip R. Christensen; Neil Dello Russo; Joshua P. Emery; William M. Grundy; Matthias Hahn; Victoria E. Hamilton; Carly Howett; Hannah Kaplan; Katherine Kretke; Tod R. Lauer; Claudia Manzoni; Raphael Marschall; Audrey C. Martin; Brian H. May; Stefano Mottola; Catherine B. Olkin; Martin Pätzold; Joel Wm Parker; Simon Porter; Frank Preusker; Silvia Protopapa; Dennis C. Reuter; Stuart J. Robbins; Julien Salmon; Amy A. Simon; S. Alan Stern; Jessica M. Sunshine; Ian Wong; Harold A. Weaver; Coralie Adam; Shanti Ancheta; John Andrews; Saadat Anwar; Olivier S. Barnouin; Matthew Beasley; Kevin E. Berry; Emma Birath; Bryce Bolin; Mark Booco; Rich Burns; Pam Campbell; Russell Carpenter; Katherine Crombie; Mark Effertz; Emily Eifert; Caroline Ellis; Preston Faiks; Joel Fischetti; Paul Fleming; Kristen Francis; Ray Franco; Sandy Freund; Claire Gallagher; Jeroen Geeraert; Caden Gobat; Donovan Gorgas; Chris Granat; Sheila Gray; Patrick Haas; Ann Harch; Katie Hegedus; Chris Isabelle; Bill Jackson; Taylor Jacob; Sherry Jennings; David Kaufmann; Brian A. Keeney; Thomas Kennedy; Karl Lauffer; Erik Lessac-Chenen; Rob Leonard; Andrew Levine; Allen Lunsford; Tim Martin; Jim McAdams; Greg Mehall; Trevor Merkley; Graham Miller; Matthew Montanaro; Anna Montgomery; Graham Murphy; Maxwell Myers; Derek S. Nelson; Adriana Ocampo; Ryan Olds; John Y. Pelgrift; Trevor Perkins; Jon Pineau; Devin Poland; Vaishnavi Ramanan; Debi Rose; Eric Sahr; Owen Short; Ishita Solanki; Dale Stanbridge; Brian Sutter; Zachary Talpas; Howard Taylor; Bo Treiu; Nate Vermeer; Michael Vincent; Mike Wallace; Gerald Weigle; Daniel R. Wibben; Zach Wiens; John P. Wilson; Yifan Zhao

doi:10.1038/s41586-024-07378-0

A contact binary satellite of the asteroid (152830) Dinkinesh

Harold F. Levison, Simone Marchi, Keith S. Noll, John R. Spencer, Thomas S. Statler, James F. Bell, Edward B. Bierhaus, Richard Binzel, William F. Bottke, Daniel Britt, Michael E. Brown, Marc W. Buie, Philip R. Christensen, Neil Dello Russo, Joshua P. Emery, William M. Grundy, Matthias Hahn, Victoria E. Hamilton, Carly Howett, Hannah KaplanKatherine Kretke, Tod R. Lauer, Claudia Manzoni, Raphael Marschall, Audrey C. Martin, Brian H. May, Stefano Mottola, Catherine B. Olkin, Martin Pätzold, Joel Wm Parker, Simon Porter, Frank Preusker, Silvia Protopapa, Dennis C. Reuter, Stuart J. Robbins, Julien Salmon, Amy A. Simon, S. Alan Stern, Jessica M. Sunshine, Ian Wong, Harold A. Weaver, Coralie Adam, Shanti Ancheta, John Andrews, Saadat Anwar, Olivier S. Barnouin, Matthew Beasley, Kevin E. Berry, Emma Birath, Bryce Bolin, Mark Booco, Rich Burns, Pam Campbell, Russell Carpenter, Katherine Crombie, Mark Effertz, Emily Eifert, Caroline Ellis, Preston Faiks, Joel Fischetti, Paul Fleming, Kristen Francis, Ray Franco, Sandy Freund, Claire Gallagher, Jeroen Geeraert, Caden Gobat, Donovan Gorgas, Chris Granat, Sheila Gray, Patrick Haas, Ann Harch, Katie Hegedus, Chris Isabelle, Bill Jackson, Taylor Jacob, Sherry Jennings, David Kaufmann, Brian A. Keeney, Thomas Kennedy, Karl Lauffer, Erik Lessac-Chenen, Rob Leonard, Andrew Levine, Allen Lunsford, Tim Martin, Jim McAdams, Greg Mehall, Trevor Merkley, Graham Miller, Matthew Montanaro, Anna Montgomery, Graham Murphy, Maxwell Myers, Derek S. Nelson, Adriana Ocampo, Ryan Olds, John Y. Pelgrift, Trevor Perkins, Jon Pineau, Devin Poland, Vaishnavi Ramanan, Debi Rose, Eric Sahr, Owen Short, Ishita Solanki, Dale Stanbridge, Brian Sutter, Zachary Talpas, Howard Taylor, Bo Treiu, Nate Vermeer, Michael Vincent, Mike Wallace, Gerald Weigle, Daniel R. Wibben, Zach Wiens, John P. Wilson, Yifan Zhao

Astronomy and Planetary Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O’Keefe–Radzievskii–Paddack effect)¹ to be a notable factor in their evolution². (152830) Dinkinesh is a small asteroid orbiting the Sun near the inner edge of the main asteroid belt with a heliocentric semimajor axis of 2.19 au; its S-type spectrum^3,4 is typical of bodies in this part of the main belt⁵. Here we report observations by the Lucy spacecraft^6,7 as it passed within 431 km of Dinkinesh. Lucy revealed Dinkinesh, which has an effective diameter of only 720 m, to be unexpectedly complex. Of particular note is the presence of a prominent longitudinal trough overlain by a substantial equatorial ridge and the discovery of the first confirmed contact binary satellite, now named (152830) Dinkinesh I Selam. Selam consists of two near-equal-sized lobes with diameters of 210 m and 230 m. It orbits Dinkinesh at a distance of 3.1 km with an orbital period of about 52.7 h and is tidally locked. The dynamical state, angular momentum and geomorphologic observations of the system lead us to infer that the ridge and trough of Dinkinesh are probably the result of mass failure resulting from spin-up by YORP followed by the partial reaccretion of the shed material. Selam probably accreted from material shed by this event.

Original language	English (US)
Pages (from-to)	1015-1020
Number of pages	6
Journal	Nature
Volume	629
Issue number	8014
DOIs	https://doi.org/10.1038/s41586-024-07378-0
State	Published - May 30 2024

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Levison, H. F., Marchi, S., Noll, K. S., Spencer, J. R., Statler, T. S., Bell, J. F., Bierhaus, E. B., Binzel, R., Bottke, W. F., Britt, D., Brown, M. E., Buie, M. W., Christensen, P. R., Dello Russo, N., Emery, J. P., Grundy, W. M., Hahn, M., Hamilton, V. E., Howett, C., ... Zhao, Y. (2024). A contact binary satellite of the asteroid (152830) Dinkinesh. Nature, 629(8014), 1015-1020. https://doi.org/10.1038/s41586-024-07378-0

Levison, HF, Marchi, S, Noll, KS, Spencer, JR, Statler, TS, Bell, JF, Bierhaus, EB, Binzel, R, Bottke, WF, Britt, D, Brown, ME, Buie, MW, Christensen, PR, Dello Russo, N, Emery, JP, Grundy, WM, Hahn, M, Hamilton, VE, Howett, C, Kaplan, H, Kretke, K, Lauer, TR, Manzoni, C, Marschall, R, Martin, AC, May, BH, Mottola, S, Olkin, CB, Pätzold, M, Parker, JW, Porter, S, Preusker, F, Protopapa, S, Reuter, DC, Robbins, SJ, Salmon, J, Simon, AA, Stern, SA, Sunshine, JM, Wong, I, Weaver, HA, Adam, C, Ancheta, S, Andrews, J, Anwar, S, Barnouin, OS, Beasley, M, Berry, KE, Birath, E, Bolin, B, Booco, M, Burns, R, Campbell, P, Carpenter, R, Crombie, K, Effertz, M, Eifert, E, Ellis, C, Faiks, P, Fischetti, J, Fleming, P, Francis, K, Franco, R, Freund, S, Gallagher, C, Geeraert, J, Gobat, C, Gorgas, D, Granat, C, Gray, S, Haas, P, Harch, A, Hegedus, K, Isabelle, C, Jackson, B, Jacob, T, Jennings, S, Kaufmann, D, Keeney, BA, Kennedy, T, Lauffer, K, Lessac-Chenen, E, Leonard, R, Levine, A, Lunsford, A, Martin, T, McAdams, J, Mehall, G, Merkley, T, Miller, G, Montanaro, M, Montgomery, A, Murphy, G, Myers, M, Nelson, DS, Ocampo, A, Olds, R, Pelgrift, JY, Perkins, T, Pineau, J, Poland, D, Ramanan, V, Rose, D, Sahr, E, Short, O, Solanki, I, Stanbridge, D, Sutter, B, Talpas, Z, Taylor, H, Treiu, B, Vermeer, N, Vincent, M, Wallace, M, Weigle, G, Wibben, DR, Wiens, Z, Wilson, JP & Zhao, Y 2024, 'A contact binary satellite of the asteroid (152830) Dinkinesh', Nature, vol. 629, no. 8014, pp. 1015-1020. https://doi.org/10.1038/s41586-024-07378-0

@article{6c52cb07622d4d6ca2f1ace880321f27,

title = "A contact binary satellite of the asteroid (152830) Dinkinesh",

abstract = "Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O{\textquoteright}Keefe–Radzievskii–Paddack effect)1 to be a notable factor in their evolution2. (152830) Dinkinesh is a small asteroid orbiting the Sun near the inner edge of the main asteroid belt with a heliocentric semimajor axis of 2.19 au; its S-type spectrum3,4 is typical of bodies in this part of the main belt5. Here we report observations by the Lucy spacecraft6,7 as it passed within 431 km of Dinkinesh. Lucy revealed Dinkinesh, which has an effective diameter of only 720 m, to be unexpectedly complex. Of particular note is the presence of a prominent longitudinal trough overlain by a substantial equatorial ridge and the discovery of the first confirmed contact binary satellite, now named (152830) Dinkinesh I Selam. Selam consists of two near-equal-sized lobes with diameters of 210 m and 230 m. It orbits Dinkinesh at a distance of 3.1 km with an orbital period of about 52.7 h and is tidally locked. The dynamical state, angular momentum and geomorphologic observations of the system lead us to infer that the ridge and trough of Dinkinesh are probably the result of mass failure resulting from spin-up by YORP followed by the partial reaccretion of the shed material. Selam probably accreted from material shed by this event.",

author = "Levison, {Harold F.} and Simone Marchi and Noll, {Keith S.} and Spencer, {John R.} and Statler, {Thomas S.} and Bell, {James F.} and Bierhaus, {Edward B.} and Richard Binzel and Bottke, {William F.} and Daniel Britt and Brown, {Michael E.} and Buie, {Marc W.} and Christensen, {Philip R.} and {Dello Russo}, Neil and Emery, {Joshua P.} and Grundy, {William M.} and Matthias Hahn and Hamilton, {Victoria E.} and Carly Howett and Hannah Kaplan and Katherine Kretke and Lauer, {Tod R.} and Claudia Manzoni and Raphael Marschall and Martin, {Audrey C.} and May, {Brian H.} and Stefano Mottola and Olkin, {Catherine B.} and Martin P{\"a}tzold and Parker, {Joel Wm} and Simon Porter and Frank Preusker and Silvia Protopapa and Reuter, {Dennis C.} and Robbins, {Stuart J.} and Julien Salmon and Simon, {Amy A.} and Stern, {S. Alan} and Sunshine, {Jessica M.} and Ian Wong and Weaver, {Harold A.} and Coralie Adam and Shanti Ancheta and John Andrews and Saadat Anwar and Barnouin, {Olivier S.} and Matthew Beasley and Berry, {Kevin E.} and Emma Birath and Bryce Bolin and Mark Booco and Rich Burns and Pam Campbell and Russell Carpenter and Katherine Crombie and Mark Effertz and Emily Eifert and Caroline Ellis and Preston Faiks and Joel Fischetti and Paul Fleming and Kristen Francis and Ray Franco and Sandy Freund and Claire Gallagher and Jeroen Geeraert and Caden Gobat and Donovan Gorgas and Chris Granat and Sheila Gray and Patrick Haas and Ann Harch and Katie Hegedus and Chris Isabelle and Bill Jackson and Taylor Jacob and Sherry Jennings and David Kaufmann and Keeney, {Brian A.} and Thomas Kennedy and Karl Lauffer and Erik Lessac-Chenen and Rob Leonard and Andrew Levine and Allen Lunsford and Tim Martin and Jim McAdams and Greg Mehall and Trevor Merkley and Graham Miller and Matthew Montanaro and Anna Montgomery and Graham Murphy and Maxwell Myers and Nelson, {Derek S.} and Adriana Ocampo and Ryan Olds and Pelgrift, {John Y.} and Trevor Perkins and Jon Pineau and Devin Poland and Vaishnavi Ramanan and Debi Rose and Eric Sahr and Owen Short and Ishita Solanki and Dale Stanbridge and Brian Sutter and Zachary Talpas and Howard Taylor and Bo Treiu and Nate Vermeer and Michael Vincent and Mike Wallace and Gerald Weigle and Wibben, {Daniel R.} and Zach Wiens and Wilson, {John P.} and Yifan Zhao",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = may,

day = "30",

doi = "10.1038/s41586-024-07378-0",

language = "English (US)",

volume = "629",

pages = "1015--1020",

journal = "Nature",

issn = "0028-0836",

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number = "8014",

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TY - JOUR

T1 - A contact binary satellite of the asteroid (152830) Dinkinesh

AU - Levison, Harold F.

AU - Marchi, Simone

AU - Noll, Keith S.

AU - Spencer, John R.

AU - Statler, Thomas S.

AU - Bell, James F.

AU - Bierhaus, Edward B.

AU - Binzel, Richard

AU - Bottke, William F.

AU - Britt, Daniel

AU - Brown, Michael E.

AU - Buie, Marc W.

AU - Christensen, Philip R.

AU - Dello Russo, Neil

AU - Emery, Joshua P.

AU - Grundy, William M.

AU - Hahn, Matthias

AU - Hamilton, Victoria E.

AU - Howett, Carly

AU - Kaplan, Hannah

AU - Kretke, Katherine

AU - Lauer, Tod R.

AU - Manzoni, Claudia

AU - Marschall, Raphael

AU - Martin, Audrey C.

AU - May, Brian H.

AU - Mottola, Stefano

AU - Olkin, Catherine B.

AU - Pätzold, Martin

AU - Parker, Joel Wm

AU - Porter, Simon

AU - Preusker, Frank

AU - Protopapa, Silvia

AU - Reuter, Dennis C.

AU - Robbins, Stuart J.

AU - Salmon, Julien

AU - Simon, Amy A.

AU - Stern, S. Alan

AU - Sunshine, Jessica M.

AU - Wong, Ian

AU - Weaver, Harold A.

AU - Adam, Coralie

AU - Ancheta, Shanti

AU - Andrews, John

AU - Anwar, Saadat

AU - Barnouin, Olivier S.

AU - Beasley, Matthew

AU - Berry, Kevin E.

AU - Birath, Emma

AU - Bolin, Bryce

AU - Booco, Mark

AU - Burns, Rich

AU - Campbell, Pam

AU - Carpenter, Russell

AU - Crombie, Katherine

AU - Effertz, Mark

AU - Eifert, Emily

AU - Ellis, Caroline

AU - Faiks, Preston

AU - Fischetti, Joel

AU - Fleming, Paul

AU - Francis, Kristen

AU - Franco, Ray

AU - Freund, Sandy

AU - Gallagher, Claire

AU - Geeraert, Jeroen

AU - Gobat, Caden

AU - Gorgas, Donovan

AU - Granat, Chris

AU - Gray, Sheila

AU - Haas, Patrick

AU - Harch, Ann

AU - Hegedus, Katie

AU - Isabelle, Chris

AU - Jackson, Bill

AU - Jacob, Taylor

AU - Jennings, Sherry

AU - Kaufmann, David

AU - Keeney, Brian A.

AU - Kennedy, Thomas

AU - Lauffer, Karl

AU - Lessac-Chenen, Erik

AU - Leonard, Rob

AU - Levine, Andrew

AU - Lunsford, Allen

AU - Martin, Tim

AU - McAdams, Jim

AU - Mehall, Greg

AU - Merkley, Trevor

AU - Miller, Graham

AU - Montanaro, Matthew

AU - Montgomery, Anna

AU - Murphy, Graham

AU - Myers, Maxwell

AU - Nelson, Derek S.

AU - Ocampo, Adriana

AU - Olds, Ryan

AU - Pelgrift, John Y.

AU - Perkins, Trevor

AU - Pineau, Jon

AU - Poland, Devin

AU - Ramanan, Vaishnavi

AU - Rose, Debi

AU - Sahr, Eric

AU - Short, Owen

AU - Solanki, Ishita

AU - Stanbridge, Dale

AU - Sutter, Brian

AU - Talpas, Zachary

AU - Taylor, Howard

AU - Treiu, Bo

AU - Vermeer, Nate

AU - Vincent, Michael

AU - Wallace, Mike

AU - Weigle, Gerald

AU - Wibben, Daniel R.

AU - Wiens, Zach

AU - Wilson, John P.

AU - Zhao, Yifan

PY - 2024/5/30

Y1 - 2024/5/30

N2 - Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O’Keefe–Radzievskii–Paddack effect)1 to be a notable factor in their evolution2. (152830) Dinkinesh is a small asteroid orbiting the Sun near the inner edge of the main asteroid belt with a heliocentric semimajor axis of 2.19 au; its S-type spectrum3,4 is typical of bodies in this part of the main belt5. Here we report observations by the Lucy spacecraft6,7 as it passed within 431 km of Dinkinesh. Lucy revealed Dinkinesh, which has an effective diameter of only 720 m, to be unexpectedly complex. Of particular note is the presence of a prominent longitudinal trough overlain by a substantial equatorial ridge and the discovery of the first confirmed contact binary satellite, now named (152830) Dinkinesh I Selam. Selam consists of two near-equal-sized lobes with diameters of 210 m and 230 m. It orbits Dinkinesh at a distance of 3.1 km with an orbital period of about 52.7 h and is tidally locked. The dynamical state, angular momentum and geomorphologic observations of the system lead us to infer that the ridge and trough of Dinkinesh are probably the result of mass failure resulting from spin-up by YORP followed by the partial reaccretion of the shed material. Selam probably accreted from material shed by this event.

AB - Asteroids with diameters less than about 5 km have complex histories because they are small enough for radiative torques (that is, YORP, short for the Yarkovsky–O’Keefe–Radzievskii–Paddack effect)1 to be a notable factor in their evolution2. (152830) Dinkinesh is a small asteroid orbiting the Sun near the inner edge of the main asteroid belt with a heliocentric semimajor axis of 2.19 au; its S-type spectrum3,4 is typical of bodies in this part of the main belt5. Here we report observations by the Lucy spacecraft6,7 as it passed within 431 km of Dinkinesh. Lucy revealed Dinkinesh, which has an effective diameter of only 720 m, to be unexpectedly complex. Of particular note is the presence of a prominent longitudinal trough overlain by a substantial equatorial ridge and the discovery of the first confirmed contact binary satellite, now named (152830) Dinkinesh I Selam. Selam consists of two near-equal-sized lobes with diameters of 210 m and 230 m. It orbits Dinkinesh at a distance of 3.1 km with an orbital period of about 52.7 h and is tidally locked. The dynamical state, angular momentum and geomorphologic observations of the system lead us to infer that the ridge and trough of Dinkinesh are probably the result of mass failure resulting from spin-up by YORP followed by the partial reaccretion of the shed material. Selam probably accreted from material shed by this event.

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DO - 10.1038/s41586-024-07378-0

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AN - SCOPUS:85194831470

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VL - 629

SP - 1015

EP - 1020

JO - Nature

JF - Nature

IS - 8014

ER -

A contact binary satellite of the asteroid (152830) Dinkinesh

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