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The Origins and Reservoirs of Exocomets

Bannister, Michele ; Pfalzner, Susanne ; Pearce, Tim ; Mustill, Alexander J. LU orcid ; Klahr, Hubert ; Nomura, Hideko ; Ohashi, Nagayoshi ; Kokotanekova, Rosita ; Marino, Sebastian and Bodewits, Dennis , et al. (2025) In Space Science Reviews 221(7).
Abstract
Small bodies exist in distinct populations within their planetary systems. These reservoir populations hold a range of compositions, which to first order are dependent on formation location relative to their star. We provide a general overview of the nature of the reservoirs that source exocomets, from the influence of the stellar environment through planetesimal formation to comparisons with Solar System populations. Once transitioned from a young protoplanetary disc to a debris disc, a star can expect to be rained with exocomets. While exocomets are predominantly detected to date at A-type stars, planetesimals plausibly exist across a range of stellar masses, based on exoplanet abundance, debris disc occurrence and white dwarf infall.
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Physical Sciences, Astronomical and Space Sciences, Earth and Planetary Astrophysics, Solar and Stellar Astrophysics
in
Space Science Reviews
volume
221
issue
7
article number
90
pages
34 pages
publisher
Springer
external identifiers
  • pmid:41035786
  • scopus:105018186526
ISSN
0038-6308
DOI
10.1007/s11214-025-01219-w
language
English
LU publication?
yes
id
595b7dc1-7f36-4331-aded-120c2b7bd445
alternative location
https://arxiv.org/abs/2509.22541
date added to LUP
2025-10-31 14:52:01
date last changed
2025-11-03 14:58:13
@article{595b7dc1-7f36-4331-aded-120c2b7bd445,
  abstract     = {{Small bodies exist in distinct populations within their planetary systems. These reservoir populations hold a range of compositions, which to first order are dependent on formation location relative to their star. We provide a general overview of the nature of the reservoirs that source exocomets, from the influence of the stellar environment through planetesimal formation to comparisons with Solar System populations. Once transitioned from a young protoplanetary disc to a debris disc, a star can expect to be rained with exocomets. While exocomets are predominantly detected to date at A-type stars, planetesimals plausibly exist across a range of stellar masses, based on exoplanet abundance, debris disc occurrence and white dwarf infall.}},
  author       = {{Bannister, Michele and Pfalzner, Susanne and Pearce, Tim and Mustill, Alexander J. and Klahr, Hubert and Nomura, Hideko and Ohashi, Nagayoshi and Kokotanekova, Rosita and Marino, Sebastian and Bodewits, Dennis and Marschall, Raphael and Seligman, Darryl Z. and Jones, Geraint H. and Veras, Dimitri}},
  issn         = {{0038-6308}},
  keywords     = {{Physical Sciences; Astronomical and Space Sciences; Earth and Planetary Astrophysics; Solar and Stellar Astrophysics}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{7}},
  publisher    = {{Springer}},
  series       = {{Space Science Reviews}},
  title        = {{The Origins and Reservoirs of Exocomets}},
  url          = {{http://dx.doi.org/10.1007/s11214-025-01219-w}},
  doi          = {{10.1007/s11214-025-01219-w}},
  volume       = {{221}},
  year         = {{2025}},
}