dc.contributor.author | Calamari, Emily | |
dc.contributor.author | Faherty, Jacqueline K. | |
dc.contributor.author | Visscher, Channon | |
dc.contributor.author | Gemma, Marina E. | |
dc.contributor.author | Burningham, Ben | |
dc.contributor.author | Rothermich, Austin | |
dc.date.accessioned | 2024-03-25T13:33:14Z | |
dc.date.available | 2024-03-25T13:33:14Z | |
dc.date.issued | 2024-02-29 | |
dc.identifier.citation | Calamari , E , Faherty , J K , Visscher , C , Gemma , M E , Burningham , B & Rothermich , A 2024 , ' Predicting Cloud Conditions in Substellar Mass Objects Using Ultracool Dwarf Companions ' , The Astrophysical Journal , vol. 963 , no. 1 , 67 , pp. 1-15 . | |
dc.identifier.issn | 0004-637X | |
dc.identifier.other | ArXiv: http://arxiv.org/abs/2401.11038v1 | |
dc.identifier.other | ORCID: /0000-0003-4600-5627/work/155015127 | |
dc.identifier.uri | http://hdl.handle.net/2299/27597 | |
dc.description | © 2024 The Author(s). Published by the American Astronomical Society. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY), https://creativecommons.org/licenses/by/4.0/ | |
dc.description.abstract | We present results from conducting a theoretical chemical analysis of a sample of benchmark companion brown dwarfs whose primary star is of type F, G or K. We summarize the entire known sample of these types of companion systems, termed "compositional benchmarks", that are present in the literature or recently published as key systems of study in order to best understand brown dwarf chemistry and condensate formation. Via mass balance and stoichiometric calculations, we predict a median brown dwarf atmospheric oxygen sink of $17.8^{+1.7}_{-2.3}\%$ by utilizing published stellar abundances in the local solar neighborhood. Additionally, we predict a silicate condensation sequence such that atmospheres with bulk Mg/Si $\lesssim$ 0.9 will form enstatite (MgSiO$_3$) and quartz (SiO$_2$) clouds and atmospheres with bulk Mg/Si $\gtrsim$ 0.9 will form enstatite and forsterite (Mg$_2$SiO$_4$) clouds. Implications of these results on C/O ratio trends in substellar mass objects and utility of these predictions in future modeling work are discussed. | en |
dc.format.extent | 15 | |
dc.format.extent | 2542537 | |
dc.format.extent | 965143 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Astrophysical Journal | |
dc.subject | astro-ph.SR | |
dc.subject | astro-ph.EP | |
dc.subject | astro-ph.GA | |
dc.title | Predicting Cloud Conditions in Substellar Mass Objects Using Ultracool Dwarf Companions | en |
dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
dc.contributor.institution | School of Physics, Engineering & Computer Science | |
dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
dc.description.status | Peer reviewed | |
rioxxterms.type | Journal Article/Review | |
herts.preservation.rarelyaccessed | true | |