Michele Bannister, Susanne Pfalzner, Tim Pearce, Alexander J Mustill, Hubert Klahr, Hideko Nomura, Nagayoshi Ohashi, Rosita Kokotanekova, Sebastian Marino, Dennis Bodewits, Raphael Marschall, Darryl Z Seligman, Geraint H Jones, Dimitri Veras
{"title":"The Origins & Reservoirs of Exocomets.","authors":"Michele Bannister, Susanne Pfalzner, Tim Pearce, Alexander J Mustill, Hubert Klahr, Hideko Nomura, Nagayoshi Ohashi, Rosita Kokotanekova, Sebastian Marino, Dennis Bodewits, Raphael Marschall, Darryl Z Seligman, Geraint H Jones, Dimitri Veras","doi":"10.1007/s11214-025-01219-w","DOIUrl":null,"url":null,"abstract":"<p><p>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.</p>","PeriodicalId":21902,"journal":{"name":"Space Science Reviews","volume":"221 7","pages":"90"},"PeriodicalIF":7.4000,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12479627/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Space Science Reviews","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1007/s11214-025-01219-w","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/9/29 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"ASTRONOMY & ASTROPHYSICS","Score":null,"Total":0}
引用次数: 0
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.
期刊介绍:
Space Science Reviews (SSRv) stands as an international journal dedicated to scientific space research, offering a contemporary synthesis across various branches of space exploration. Emphasizing scientific outcomes and instruments, SSRv spans astrophysics, physics of planetary systems, solar physics, and the physics of magnetospheres & interplanetary matter.
Beyond Topical Collections and invited Review Articles, Space Science Reviews welcomes unsolicited Review Articles and Special Communications. The latter encompass papers related to a prior topical volume/collection, report-type papers, or timely contributions addressing a robust combination of space science and technology. These papers succinctly summarize both the science and technology aspects of instruments or missions in a single publication.