List of extrasolar planetary collisions

Last updated

PIA18469-AsteroidCollision-NearStarNGC2547-ID8-2013.jpg
Artist's impression of a collision in NGC 2547–ID8
Fomalhaut b dust cloud.png
Fading and expansion of the Fomalhaut b dust cloud

This is a list of collisions between exoplanets or planetesimals observed in extrasolar systems. These collisions are more common in young systems and are an important part in the growth of especially terrestrial planets from so-called planetary embryos. [1] Detections of individual collisions are nevertheless rare and are detected via transits in the optical, infrared excess, silicate emission or via infrared brightening. Collisions are thought to be common in a type of debris disk, so-called extreme debris disks (EDD). Co-moving stellar or substellar companions can trigger such collisions at an old age, creating old EDDs. Only about 24 EDDs are known. [2] [3]

Contents

This list does not include planetary bodies being accreted by white dwarfs, for this refer to the List of exoplanets and planetary debris around white dwarfs.

List of individual events

This list contains systems with individual collision events that were directly observed. Alternatively events were inferred from properties of the disk. The list is sorted after the start of the event.[ clarification needed ]

Name of star spectral type Approx. age
(Myr)		Extreme
debris
disk?		Start of eventColliding bodiesNotesRef.
Beta Pictoris A6V20no~150 years ago100–500 km bodySo-called "cat's tail" feature in the disk observed in mid-infrared [4]
A few years before 2004Decreased mid-infrared flux and disappearance of forsterite emission [5]
Fomalhaut A3V440noEarly 2004Two bodies of ≥110 km in size, or a 56 km body impacting a 893 km body Fomalhaut b was once suspected to be a planet, but is now suspected to be the remains of a planetary collision [6]
P1121 F9V80yes [3] Before 2012Two bodies with sizes of ≥100 kmOne hypervelocity impact [2] [7]
NGC 2547–ID8 G6V35yes [3] late 2012Two bodies with sizes of ≥100 kmlikely grazing or hit-and-run type event [7] [8]
early 2014100 km bodies, maybe same objects as the first eventfragments dominated by boulders [7]
HD 169142 A5V6no2013–2018UnknownVariability interpreted as appearance and disappearance of a dust ring. Comparisons with EDDs were made. [9]
TYC 4209-1322-1 G1V275yes [3] 2010 or earlierunknown [10]
Sometime in 2014Two ≥90 km bodiesbrightening and fading between 2014 and 2018 [11] [10]
HD 166191 late F- to early G10yes [3] Early 2018Two ≥500 km bodiesSudden increase of dust production in early 2018, reaching a high in 2019. Also transit of star-sized dust clouds, produced by the collisions. [12]
V488 Persei K2-2.5 V80yes [3] 2019Two 60 km bodiesConstant collisions will last 1,000 to 10,000 years.
Possibly formation of a Mercury-like planet.		 [13] [14]
ASASSN-21qj G2300no?December 2021Two ice giants Breakup of exocomets was also proposed. [15] [16]
HD 172555 A5V23noWithin 0.1 MyrTwo planetesimalsCompared to the formation of the Moon [17] [18]
BD+20 307 F-type binary≥1000yes [3] UnknownPlanetary-scaleCatastrophic collision between planetary-scale bodies [19] [20]
HD 15407AF3V80 or 2100yes [3] UnknownPlanetesimals?One giant hypervelocity impact? [21] [22]
HD 23514 F6V100yes [3] UnknownPlanetary embryos; later work: atmospheric stripping or giant impact, involving volatiles. Involving a mass at least corresponding to 120-165 km-size asteroidMember of the Pleiades [23] [24]
TYC 4479-3-1 G6V5000yes [3] Unknown≥50 km planetesimalDisruption of one body [11]
HD 113766AF2V17yes [3] UnknownPartially differentiated bodiesRecent impact of two asteroids or planetary bodies [25] [26]
TYC 8830-410-1 G9V600yes [3] UnknownRocky bodiesGiant impact [27]

List of other EDDs

These objects appear as EDDs in Moór et al. [3] EDDs are listed here, because they are often associated with individual giant collisions. List is sorted after discovery year.

Name of starSpectral typeApprox. age
(Myr)		NotesDiscovery year [3] Ref.
TYC 8241–2652–1K210rapid disappearance of the disk, unknown mechanism2012 [28] [29]
RZ Piscium K0IV30Intense continuous collisions, destroying a 90 km asteroid each year.2013 [30] [31]
TIC 43488669100-400 runaway star, without further estimates of the collisions2020 [32]
TYC 4515–485–1F5V>150without further estimates of the collisions2021 [11]
TYC 5940–1510–1G5V120without further estimates of the collisions2021 [11]
TYC 8105–370–1G9V130without further estimates of the collisions2021 [11]
BD-04 3234 (TYC 4946–1106–1)F6V>150without further estimates of the collisions2021 [11]
TYC 9196-2916-1K4.5V85without further estimates of the collisions2022 [33] [3]
2MASS J06091701-1508085G9V200without further estimates of the collisions2024 [3]
2MASS J07120655-4752423K3.5V240without further estimates of the collisions2024 [3]
CD-44 6765 K0.5V5500without further estimates of the collisions2024 [3]
2MASS J20431522+1043355K4V250without further estimates of the collisions2024 [3]

List of EDD without collisions

Name of starspectral typeapproximate age (Myr)notesdiscovery year [3] Reference
HD 145263 F4V11hypervelocity impact was excluded in one study, instead extreme space weathering was suggested to explain observed mineralogy. [34] This object appears as an EDD in Moór et al. [3] 1998 [34]

See also

References

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  2. 1 2 Meng, Huan Y. A.; Su, Kate Y. L.; Rieke, George H.; Rujopakarn, Wiphu; Myers, Gordon; Cook, Michael; Erdelyi, Emery; Maloney, Chris; McMath, James; Persha, Gerald; Poshyachinda, Saran; Reichart, Daniel E. (2015-05-01). "Planetary Collisions Outside the Solar System: Time Domain Characterization of Extreme Debris Disks". The Astrophysical Journal. 805 (1): 77. arXiv: 1503.05610 . Bibcode:2015ApJ...805...77M. doi:10.1088/0004-637X/805/1/77. ISSN   0004-637X.
  3. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Moór, Attila; Ábrahám, Péter; Su, Kate Y. L.; Henning, Thomas; Marino, Sebastian; Chen, Lei; Kóspál, Ágnes; Pawellek, Nicole; Varga, József; Vida, Krisztián (2024-03-01). "Abundant sub-micron grains revealed in newly discovered extreme debris discs". Monthly Notices of the Royal Astronomical Society. 528 (3): 4528–4546. arXiv: 2402.15438 . Bibcode:2024MNRAS.528.4528M. doi: 10.1093/mnras/stae155 . ISSN   0035-8711.
  4. ↑ Rebollido, Isabel; Stark, Christopher C.; Kammerer, Jens; Perrin, Marshall D.; Lawson, Kellen; Pueyo, Laurent; Chen, Christine; Hines, Dean; Girard, Julien H.; Worthen, Kadin; Ingerbretsen, Carl; Betti, Sarah; Clampin, Mark; Golimowski, David; Hoch, Kielan (2024-02-01). "JWST-TST High Contrast: Asymmetries, Dust Populations, and Hints of a Collision in the β Pictoris Disk with NIRCam and MIRI". The Astronomical Journal. 167 (2): 69. arXiv: 2401.05271 . Bibcode:2024AJ....167...69R. doi: 10.3847/1538-3881/ad1759 . ISSN   0004-6256.
  5. ↑ Chen, Christine H.; Lu, Cicero X.; Worthen, Kadin; Law, David R.; Sargent, B. A.; Moro-Martin, Amaya; Sloan, G. C.; Lisse, Carey M.; Watson, Dan M.; Girard, Julien H.; Chai, Yiwei; Hines, Dean C.; Kammerer, Jens; Li, Alexis; Perrin, Marshall (2024-10-01). "MIRI MRS Observations of Beta Pictoris. II. The Spectroscopic Case for a Recent Giant Collision". The Astrophysical Journal. 973 (2): 139. arXiv: 2407.04661 . Bibcode:2024ApJ...973..139C. doi: 10.3847/1538-4357/ad60bb . ISSN   0004-637X.
  6. ↑ Gaspar, Andras; Rieke, George (2020-04-01). "New HST data and modeling reveal a massive planetesimal collision around Fomalhaut". Proceedings of the National Academy of Sciences. 117 (18): 9712–9722. arXiv: 2004.08736 . Bibcode:2020PNAS..117.9712G. doi: 10.1073/pnas.1912506117 . ISSN   0027-8424. PMC   7211925 . PMID   32312810.
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  8. ↑ Meng, Huan Y. A.; Su, Kate Y. L.; Rieke, George H.; Stevenson, David J.; Plavchan, Peter; Rujopakarn, Wiphu; Lisse, Carey M.; Poshyachinda, Saran; Reichart, Daniel E. (2014-08-01). "Large impacts around a solar-analog star in the era of terrestrial planet formation". Science. 345 (6200): 1032–1035. arXiv: 1503.05609 . Bibcode:2014Sci...345.1032M. doi:10.1126/science.1255153. ISSN   0036-8075. PMID   25170148.
  9. ↑ Chen, Lei; Moór, Attila; Kreplin, Alexander; Kóspál, Ágnes; Ábrahám, Peter; Matter, Alexis; Carmona, Andres; Hofmann, Karl-Heinz; Schertl, Dieter; Weigelt, Gerd (2019-12-01). "Variable Warm Dust around the Herbig Ae Star HD 169142: Birth of a Ring?". The Astrophysical Journal. 887 (2): L32. arXiv: 1911.10253 . Bibcode:2019ApJ...887L..32C. doi: 10.3847/2041-8213/ab59dd . ISSN   0004-637X.
  10. 1 2 Moór, Attila; Ábrahám, Péter; Kóspál, Ágnes; Su, Kate Y. L.; Rieke, George H.; Vida, Krisztián; Cataldi, Gianni; Bódi, Attila; Bognár, Zsófia; Cseh, Borbála; Csörnyei, Géza; Egei, Nóra; Farkas, Anikó; Hanyecz, Ottó; Ignácz, Bernadett (2022-11-01). "Mid-infrared time-domain study of recent dust production events in the extreme debris disc of TYC 4209-1322-1". Monthly Notices of the Royal Astronomical Society. 516 (4): 5684–5701. arXiv: 2210.11856 . Bibcode:2022MNRAS.516.5684M. doi: 10.1093/mnras/stac2595 . ISSN   0035-8711.
  11. 1 2 3 4 5 6 Moór, Attila; Ábrahám, Péter; Szabó, Gyula; Vida, Krisztián; Cataldi, Gianni; Derekas, Alíz; Henning, Thomas; Kinemuchi, Karen; Kóspál, Ágnes; Kovács, József; Pál, András; Sarkis, Paula; Seli, Bálint; Szabó, Zsófia M.; Takáts, Katalin (March 2021). "A New Sample of Warm Extreme Debris Disks from the ALLWISE Catalog". The Astrophysical Journal. 910 (1): 27. arXiv: 2103.00568 . Bibcode:2021ApJ...910...27M. doi: 10.3847/1538-4357/abdc26 . ISSN   0004-637X.
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  13. ↑ Rieke, G. H.; Su, K. Y. L.; Melis, Carl; Gáspár, András (2021-09-01). "Extreme Variability of the V488 Persei Debris Disk". The Astrophysical Journal. 918 (2): 71. arXiv: 2108.02901 . Bibcode:2021ApJ...918...71R. doi: 10.3847/1538-4357/ac0dc4 . ISSN   0004-637X.
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  15. ↑ Marshall, Jonathan P.; Ertel, Steve; Kemper, Francisca; Burgo, Carlos del; Otten, Gilles P. P. L.; Scicluna, Peter; Zeegers, Sascha T.; Ribas, Álvaro; Morata, Oscar (September 2023). "Sudden Extreme Obscuration of a Sun-like Main-sequence Star: Evolution of the Circumstellar Dust around ASASSN-21qj". The Astrophysical Journal. 954 (2): 140. arXiv: 2309.16969 . Bibcode:2023ApJ...954..140M. doi: 10.3847/1538-4357/ace629 . ISSN   0004-637X.
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  29. ↑ Günther, Hans Moritz; Kraus, Stefan; Melis, Carl; Curé, Michel; Harries, Tim; Ireland, Michael; Kanaan, Samer; Poppenhaeger, Katja; Rizzuto, Aaron; Rodriguez, David; Schneider, Christian P.; Sitko, Michael; Weigelt, Gerd; Willson, Matthew; Wolk, Scott (2017-02-01). "TYC 8241 2652 1 and the case of the disappearing disk: No smoking gun yet". Astronomy and Astrophysics. 598: A82. arXiv: 1611.01371 . Bibcode:2017A&A...598A..82G. doi:10.1051/0004-6361/201629008. ISSN   0004-6361.
  30. ↑ de Wit, W. J.; Grinin, V. P.; Potravnov, I. S.; Shakhovskoi, D. N.; Müller, A.; Moerchen, M. (2013-05-01). "Active asteroid belt causes the UXOR phenomenon in RZ Piscium". Astronomy and Astrophysics. 553: L1. arXiv: 1303.4138 . Bibcode:2013A&A...553L...1D. doi:10.1051/0004-6361/201220715. ISSN   0004-6361.
  31. ↑ Su, Kate Y. L.; Kennedy, Grant M.; Rieke, G. H.; Hughes, A. Meredith; Lin, Yu-Chia; Kittling, Jamar; Jackson, Alan P.; Anche, Ramya M.; Liu, Hauyu Baobab (2023-12-01). "RZ Piscium Hosts a Compact and Highly Perturbed Debris Disk". The Astrophysical Journal. 959 (1): 43. arXiv: 2310.12336 . Bibcode:2023ApJ...959...43S. doi: 10.3847/1538-4357/ad04d9 . ISSN   0004-637X.
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  34. 1 2 Lisse, C. M.; Meng, H. Y. A.; Sitko, M. L.; Morlok, A.; Johnson, B. C.; Jackson, A. P.; Vervack, R. J., Jr.; Chen, C. H.; Wolk, S. J.; Lucas, M. D.; Marengo, M.; Britt, D. T. (2020-05-01). "HD 145263: Spectral Observations of Silica Debris Disk Formation via Extreme Space Weathering?". The Astrophysical Journal. 894 (2): 116. arXiv: 2003.06870 . Bibcode:2020ApJ...894..116L. doi: 10.3847/1538-4357/ab7b80 . ISSN   0004-637X.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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