Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations

L. Dover; S. C. Lowry; A. Rożek; B. Rozitis; S. L. Jackson; T. Zegmott; Yu N. Krugly; I. N. Belskaya; A. Fitzsimmons; S. F. Green; C. Snodgrass; P. R. Weissman; M. Brozović; L. A. M. Benner; M. W. Busch; V. R. Ayvazian; V. Chiorny; R. Ya Inasaridze; M. Krugov; S. Mykhailova; I. Reva; J. Hibbert

doi:10.1093/mnras/stad2528

Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations

L. Dover^*, S. C. Lowry, A. Rożek, B. Rozitis, S. L. Jackson, T. Zegmott, Yu N. Krugly, I. N. Belskaya, A. Fitzsimmons, S. F. Green, C. Snodgrass, P. R. Weissman, M. Brozović, L. A. M. Benner, M. W. Busch, V. R. Ayvazian, V. Chiorny, R. Ya Inasaridze, M. Krugov, S. MykhailovaI. Reva, J. Hibbert

^*Corresponding author for this work

School of Physics and Astronomy

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

Abstract

We present a physical model and spin-state analysis of the potentially hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid between 2006 and 2020. These observations were combined with planetary radar data to develop a detailed shape model which was used to search for YORP acceleration. We report that 2000 PN9 is a relatively large top-shaped body with a sidereal rotation period of 2.53216±0.00015 h. Although we find no evidence for rotational acceleration, YORP torques smaller than ∼10−8rad/day2 cannot be ruled out. It is likely that 2000 PN9 is a YORP-evolved object, and may be an example of YORP equilibrium or self limitation.

Original language	English
Pages (from-to)	4581-4595
Number of pages	15
Journal	Monthly Notices of the Royal Astronomical Society
Volume	525
Issue number	3
Early online date	1 Sept 2023
DOIs	https://doi.org/10.1093/mnras/stad2528
Publication status	Published - 1 Nov 2023

Keywords / Materials (for Non-textual outputs)

minor planets
asteroids: individual: (23187) 2000 PN9
Methods: observational
methods: data analysis
techniques: photometric
techniques: radar astronomy
radiation mechanisms: thermal

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10.1093/mnras/stad2528Licence: Creative Commons: Attribution (CC-BY)

2308.09630v1Accepted author manuscript, 10.4 MBLicence: Creative Commons: Attribution (CC-BY)

https://arxiv.org/abs/2308.09630Licence: Creative Commons: Attribution (CC-BY)

The Emergence of Habitable Conditions in the Solar System
Cockell, C. & Snodgrass, C.
STFC
1/04/21 → 31/03/24
Project: Research

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Dover, L., Lowry, S. C., Rożek, A., Rozitis, B., Jackson, S. L., Zegmott, T., Krugly, Y. N., Belskaya, I. N., Fitzsimmons, A., Green, S. F., Snodgrass, C., Weissman, P. R., Brozović, M., Benner, L. A. M., Busch, M. W., Ayvazian, V. R., Chiorny, V., Inasaridze, R. Y., Krugov, M., ... Hibbert, J. (2023). Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations. Monthly Notices of the Royal Astronomical Society , 525(3), 4581-4595. https://doi.org/10.1093/mnras/stad2528

@article{ec61f8862ebb49f0a897e94e3f570ed1,

title = "Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations",

abstract = "We present a physical model and spin-state analysis of the potentially hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid between 2006 and 2020. These observations were combined with planetary radar data to develop a detailed shape model which was used to search for YORP acceleration. We report that 2000 PN9 is a relatively large top-shaped body with a sidereal rotation period of 2.53216±0.00015 h. Although we find no evidence for rotational acceleration, YORP torques smaller than ∼10−8rad/day2 cannot be ruled out. It is likely that 2000 PN9 is a YORP-evolved object, and may be an example of YORP equilibrium or self limitation. ",

keywords = "minor planets, asteroids: individual: (23187) 2000 PN9, Methods: observational, methods: data analysis, techniques: photometric, techniques: radar astronomy, radiation mechanisms: thermal",

author = "L. Dover and Lowry, {S. C.} and A. Ro{\.z}ek and B. Rozitis and Jackson, {S. L.} and T. Zegmott and Krugly, {Yu N.} and Belskaya, {I. N.} and A. Fitzsimmons and Green, {S. F.} and C. Snodgrass and Weissman, {P. R.} and M. Brozovi{\'c} and Benner, {L. A. M.} and Busch, {M. W.} and Ayvazian, {V. R.} and V. Chiorny and Inasaridze, {R. Ya} and M. Krugov and S. Mykhailova and I. Reva and J. Hibbert",

note = "Accepted for publication in Monthly Notices of the Royal Astronomical Society. Main paper: 15 pages, 12 figures. Appendix: 9 pages, 8 figures",

year = "2023",

month = nov,

day = "1",

doi = "10.1093/mnras/stad2528",

language = "English",

volume = "525",

pages = "4581--4595",

journal = "Monthly Notices of the Royal Astronomical Society ",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "3",

}

Dover, L, Lowry, SC, Rożek, A, Rozitis, B, Jackson, SL, Zegmott, T, Krugly, YN, Belskaya, IN, Fitzsimmons, A, Green, SF, Snodgrass, C, Weissman, PR, Brozović, M, Benner, LAM, Busch, MW, Ayvazian, VR, Chiorny, V, Inasaridze, RY, Krugov, M, Mykhailova, S, Reva, I & Hibbert, J 2023, 'Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations', Monthly Notices of the Royal Astronomical Society , vol. 525, no. 3, pp. 4581-4595. https://doi.org/10.1093/mnras/stad2528

TY - JOUR

T1 - Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations

AU - Dover, L.

AU - Lowry, S. C.

AU - Rożek, A.

AU - Rozitis, B.

AU - Jackson, S. L.

AU - Zegmott, T.

AU - Krugly, Yu N.

AU - Belskaya, I. N.

AU - Fitzsimmons, A.

AU - Green, S. F.

AU - Snodgrass, C.

AU - Weissman, P. R.

AU - Brozović, M.

AU - Benner, L. A. M.

AU - Busch, M. W.

AU - Ayvazian, V. R.

AU - Chiorny, V.

AU - Inasaridze, R. Ya

AU - Krugov, M.

AU - Mykhailova, S.

AU - Reva, I.

AU - Hibbert, J.

N1 - Accepted for publication in Monthly Notices of the Royal Astronomical Society. Main paper: 15 pages, 12 figures. Appendix: 9 pages, 8 figures

PY - 2023/11/1

Y1 - 2023/11/1

N2 - We present a physical model and spin-state analysis of the potentially hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid between 2006 and 2020. These observations were combined with planetary radar data to develop a detailed shape model which was used to search for YORP acceleration. We report that 2000 PN9 is a relatively large top-shaped body with a sidereal rotation period of 2.53216±0.00015 h. Although we find no evidence for rotational acceleration, YORP torques smaller than ∼10−8rad/day2 cannot be ruled out. It is likely that 2000 PN9 is a YORP-evolved object, and may be an example of YORP equilibrium or self limitation.

AB - We present a physical model and spin-state analysis of the potentially hazardous asteroid (23187) 2000 PN9. As part of a long-term campaign to make direct detections of the YORP effect, we collected optical lightcurves of the asteroid between 2006 and 2020. These observations were combined with planetary radar data to develop a detailed shape model which was used to search for YORP acceleration. We report that 2000 PN9 is a relatively large top-shaped body with a sidereal rotation period of 2.53216±0.00015 h. Although we find no evidence for rotational acceleration, YORP torques smaller than ∼10−8rad/day2 cannot be ruled out. It is likely that 2000 PN9 is a YORP-evolved object, and may be an example of YORP equilibrium or self limitation.

KW - minor planets

KW - asteroids: individual: (23187) 2000 PN9

KW - Methods: observational

KW - methods: data analysis

KW - techniques: photometric

KW - techniques: radar astronomy

KW - radiation mechanisms: thermal

U2 - 10.1093/mnras/stad2528

DO - 10.1093/mnras/stad2528

M3 - Article

SN - 0035-8711

VL - 525

SP - 4581

EP - 4595

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

Physical modelling of near-Earth asteroid (23187) 2000 PN9 with ground-based optical and radar observations

Abstract

Keywords / Materials (for Non-textual outputs)

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The Emergence of Habitable Conditions in the Solar System

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