{"oa_version":"Preprint","oa":1,"intvolume":"       469","day":"01","volume":469,"external_id":{"arxiv":["1702.07682"]},"publication":"Monthly Notices of the Royal Astronomical Society","language":[{"iso":"eng"}],"type":"journal_article","abstract":[{"lang":"eng","text":"We present a model to account for the observed debris discs around young white dwarfs and the presence of metal lines in their spectra. Stellar evolution models predict that the mass-loss on the AGB will be pulsed; furthermore, observations indicate that the bulk of the mass-loss occurs on the AGB. In this case, if the progenitors of the white dwarfs had remnants of planetary formation like the Sun’s Oort cloud or the Kuiper Belt and a planet lying within that cloud or nearby, we find that up to 2 per cent of the planetesimals will fall either into planet-crossing orbits or into chaotic regions after the mass-loss, depending on the location and mass of the planet (from Mars to Neptune). This yields a sufficient mass of comets that can be scattered towards the star, form a debris disc and pollute the atmosphere."}],"date_created":"2024-03-26T10:40:45Z","issue":"3","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1093/mnras/stx1036","publication_status":"published","citation":{"mla":"Caiazzo, Ilaria, and Jeremy S. Heyl. “Polluting White Dwarfs with Perturbed Exo-Comets.” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 469, no. 3, Oxford University Press, 2017, pp. 2750–59, doi:<a href=\"https://doi.org/10.1093/mnras/stx1036\">10.1093/mnras/stx1036</a>.","ama":"Caiazzo I, Heyl JS. Polluting white dwarfs with perturbed exo-comets. <i>Monthly Notices of the Royal Astronomical Society</i>. 2017;469(3):2750-2759. doi:<a href=\"https://doi.org/10.1093/mnras/stx1036\">10.1093/mnras/stx1036</a>","short":"I. Caiazzo, J.S. Heyl, Monthly Notices of the Royal Astronomical Society 469 (2017) 2750–2759.","ista":"Caiazzo I, Heyl JS. 2017. Polluting white dwarfs with perturbed exo-comets. Monthly Notices of the Royal Astronomical Society. 469(3), 2750–2759.","apa":"Caiazzo, I., &#38; Heyl, J. S. (2017). Polluting white dwarfs with perturbed exo-comets. <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press. <a href=\"https://doi.org/10.1093/mnras/stx1036\">https://doi.org/10.1093/mnras/stx1036</a>","ieee":"I. Caiazzo and J. S. Heyl, “Polluting white dwarfs with perturbed exo-comets,” <i>Monthly Notices of the Royal Astronomical Society</i>, vol. 469, no. 3. Oxford University Press, pp. 2750–2759, 2017.","chicago":"Caiazzo, Ilaria, and Jeremy S. Heyl. “Polluting White Dwarfs with Perturbed Exo-Comets.” <i>Monthly Notices of the Royal Astronomical Society</i>. Oxford University Press, 2017. <a href=\"https://doi.org/10.1093/mnras/stx1036\">https://doi.org/10.1093/mnras/stx1036</a>."},"quality_controlled":"1","publication_identifier":{"eissn":["1365-2966"],"issn":["0035-8711"]},"status":"public","author":[{"full_name":"Caiazzo, Ilaria","last_name":"Caiazzo","orcid":"0000-0002-4770-5388","first_name":"Ilaria","id":"8ae5b6e7-2a03-11ee-914d-b58ed7a3b47d"},{"first_name":"Jeremy S.","last_name":"Heyl","full_name":"Heyl, Jeremy S."}],"extern":"1","date_updated":"2024-04-08T07:05:00Z","month":"05","date_published":"2017-05-01T00:00:00Z","title":"Polluting white dwarfs with perturbed exo-comets","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.1702.07682","open_access":"1"}],"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"_id":"15241","scopus_import":"1","year":"2017","publisher":"Oxford University Press","page":"2750-2759","article_processing_charge":"No","article_type":"original"}