Capture of interstellar objects : II. By the solar system
Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced dur...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Dehnen, Walter [verfasserIn] Hands, Thomas O. [verfasserIn] Schönrich, Ralph - 1982- [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Anmerkung: |
Advance access publication 2021 December 22 Gesehen am 20.04.2022 |
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| Umfang: |
8 |
| Übergeordnetes Werk: |
Enthalten in: Monthly notices of the Royal Astronomical Society - Royal Astronomical Society, Oxford : Oxford Univ. Press, 1827, 512(2022), 3, Seite 4078-4085 |
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| Übergeordnetes Werk: |
volume:512 ; year:2022 ; number:3 ; pages:4078-4085 ; extent:8 |
| Links: |
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| DOI / URN: |
10.1093/mnras/stab3666 |
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| Katalog-ID: |
1798489937 |
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| 520 | |a Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. | ||
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10.1093/mnras/stab3666 doi (DE-627)1798489937 (DE-599)KXP1798489937 (OCoLC)1341458934 DE-627 ger DE-627 rda eng Dehnen, Walter verfasserin (DE-588)1194488994 (DE-627)167650396X aut Capture of interstellar objects II. By the solar system Walter Dehnen, Thomas O. Hands and Ralph Schönrich 2022 8 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advance access publication 2021 December 22 Gesehen am 20.04.2022 Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Hands, Thomas O. verfasserin (DE-588)1255275510 (DE-627)1799360423 aut Schönrich, Ralph 1982- verfasserin (DE-588)1018522824 (DE-627)682856320 (DE-576)355940442 aut Enthalten in Royal Astronomical Society Monthly notices of the Royal Astronomical Society Oxford : Oxford Univ. Press, 1827 512(2022), 3, Seite 4078-4085 Online-Ressource (DE-627)314059164 (DE-600)2016084-7 (DE-576)090955420 1365-2966 nnns volume:512 year:2022 number:3 pages:4078-4085 extent:8 https://doi.org/10.1093/mnras/stab3666 Verlag Resolving-System lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2026 GBV_ILN_2088 GBV_ILN_2112 GBV_ILN_2190 GBV_ILN_2810 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 512 2022 3 4078-4085 8 2013 01 DE-16-250 4115165197 00 --%%-- --%%-- --%%-- --%%-- l01 11-04-22 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_3 2013 01 DE-16-250 03 s s_8 2013 01 DE-16-250 04 p (DE-627)1758741295 Dehnen, Walter 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
| spelling |
10.1093/mnras/stab3666 doi (DE-627)1798489937 (DE-599)KXP1798489937 (OCoLC)1341458934 DE-627 ger DE-627 rda eng Dehnen, Walter verfasserin (DE-588)1194488994 (DE-627)167650396X aut Capture of interstellar objects II. By the solar system Walter Dehnen, Thomas O. Hands and Ralph Schönrich 2022 8 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advance access publication 2021 December 22 Gesehen am 20.04.2022 Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Hands, Thomas O. verfasserin (DE-588)1255275510 (DE-627)1799360423 aut Schönrich, Ralph 1982- verfasserin (DE-588)1018522824 (DE-627)682856320 (DE-576)355940442 aut Enthalten in Royal Astronomical Society Monthly notices of the Royal Astronomical Society Oxford : Oxford Univ. Press, 1827 512(2022), 3, Seite 4078-4085 Online-Ressource (DE-627)314059164 (DE-600)2016084-7 (DE-576)090955420 1365-2966 nnns volume:512 year:2022 number:3 pages:4078-4085 extent:8 https://doi.org/10.1093/mnras/stab3666 Verlag Resolving-System lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2026 GBV_ILN_2088 GBV_ILN_2112 GBV_ILN_2190 GBV_ILN_2810 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 512 2022 3 4078-4085 8 2013 01 DE-16-250 4115165197 00 --%%-- --%%-- --%%-- --%%-- l01 11-04-22 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_3 2013 01 DE-16-250 03 s s_8 2013 01 DE-16-250 04 p (DE-627)1758741295 Dehnen, Walter 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
| allfields_unstemmed |
10.1093/mnras/stab3666 doi (DE-627)1798489937 (DE-599)KXP1798489937 (OCoLC)1341458934 DE-627 ger DE-627 rda eng Dehnen, Walter verfasserin (DE-588)1194488994 (DE-627)167650396X aut Capture of interstellar objects II. By the solar system Walter Dehnen, Thomas O. Hands and Ralph Schönrich 2022 8 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Advance access publication 2021 December 22 Gesehen am 20.04.2022 Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Hands, Thomas O. verfasserin (DE-588)1255275510 (DE-627)1799360423 aut Schönrich, Ralph 1982- verfasserin (DE-588)1018522824 (DE-627)682856320 (DE-576)355940442 aut Enthalten in Royal Astronomical Society Monthly notices of the Royal Astronomical Society Oxford : Oxford Univ. Press, 1827 512(2022), 3, Seite 4078-4085 Online-Ressource (DE-627)314059164 (DE-600)2016084-7 (DE-576)090955420 1365-2966 nnns volume:512 year:2022 number:3 pages:4078-4085 extent:8 https://doi.org/10.1093/mnras/stab3666 Verlag Resolving-System lizenzpflichtig Volltext GBV_USEFLAG_U GBV_ILN_2013 ISIL_DE-16-250 SYSFLAG_1 GBV_KXP GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2026 GBV_ILN_2088 GBV_ILN_2112 GBV_ILN_2190 GBV_ILN_2810 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 512 2022 3 4078-4085 8 2013 01 DE-16-250 4115165197 00 --%%-- --%%-- --%%-- --%%-- l01 11-04-22 2013 01 DE-16-250 00 s hd2022 2013 01 DE-16-250 01 s (DE-627)1410508463 wissenschaftlicher Artikel (Zeitschrift) 2013 01 DE-16-250 02 s per_3 2013 01 DE-16-250 03 s s_8 2013 01 DE-16-250 04 p (DE-627)1758741295 Dehnen, Walter 2013 01 DE-16-250 04 k (DE-627)1416733728 ZAH Astronomisches Recheninstitut 2013 01 DE-16-250 04 s (DE-627)1410501914 Verfasser 2013 01 DE-16-250 04 s pos_1 |
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Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Advance access publication 2021 December 22 Gesehen am 20.04.2022 |
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Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Advance access publication 2021 December 22 Gesehen am 20.04.2022 |
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Capture of interstellar objects (ISOs) into the Solar system is dominated by ISOs with asymptotic incoming speeds $v_\infty \lt 4\,$km s−1. The capture rate is proportional to the ISO phase-space density in the Solar vicinity and does not vary along the Sun’s Galactic orbit, i.e. is not enhanced during a passage through a cloud of ISOs (in contrast to previous suggestions). Most bound orbits crossing those of Jupiter and Saturn are fully mixed with unbound phase space, implying that they hold the same ISO phase-space density. Assuming an interstellar number density of ${n}_{\mathrm{iso}}\sim 0.1\,$au−3, we estimate that in 1000 years the planets capture ∼2 ISOs (while ∼17 fall into the Sun), resulting in a population of ∼8 captured ISOs within 5 au of the Sun at any time, less than the number of visiting ISOs passing through the same volume on hyperbolic orbits. In terms of phase-space volume, capture into and ejection from the Solar system are equal, such that on average ISOs will not remain captive at $a\lesssim 2000\,$au for extensive periods. Advance access publication 2021 December 22 Gesehen am 20.04.2022 |
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