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"personal" } } ], "dates": [ { "date": "2026-06-04", "type": { "id": "submitted", "title": { "de": "Eingereicht", "en": "Submitted" } } } ], "description": "
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As more exoplanets are discovered in the Milky Way, understanding the properties of their host stars is becoming increasingly important. One key question is whether planets can leave detectable chemical fingerprints in host-star atmospheres. Wide binaries provide a valuable testbed because their components are expected to share a common formation environment and evolutionary history. We observed four planet- hosting wide-binary systems with IGRINS on the Gemini-South telescope and searched for planetary signatures through differential abundance trends with elemental condensation temperature (Tcond). Across our targets, we find positive, nearly flat, and negative abundance trends with Tcond trends, suggesting that chemical fingerprints are diverse and system-dependent. Our compilation of literature samples suggests that extreme Tcond slopes may occur more frequently in planet-hosting wide binaries, particularly at large binary separations.

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", "languages": [ { "id": "eng", "title": { "en": "English" } } ], "publication_date": "2026-06-04", "publisher": "Zenodo", "references": [ { "reference": "Lim et al. (2026), A&A, in press" } ], "related_identifiers": [ { "identifier": "arXiv:2605.11095", "relation_type": { "id": "describes", "title": { "de": "Beschreibt", "en": "Describes" } }, "resource_type": { "id": "publication-article", "title": { "de": "Zeitschriftenartikel", "en": "Journal article" } }, "scheme": "arxiv" } ], "resource_type": { "id": "poster", "title": { "de": "Poster", "en": "Poster" } }, "rights": [ { "description": { "en": "The Creative Commons Attribution license allows re-distribution and re-use of a licensed work on the condition that the creator is appropriately credited." }, "icon": "cc-by-icon", "id": "cc-by-4.0", "props": { "scheme": "spdx", "url": "https://creativecommons.org/licenses/by/4.0/legalcode" }, "title": { "en": "Creative Commons Attribution 4.0 International" } } ], "subjects": [ { "subject": "Stars:abundance" }, { "subject": "planetary system" }, { "subject": "binaries" }, { "subject": "Planet-star interaction" }, { "subject": "Spectroscopy" } ], "title": "Do planets leave chemical fingerprints on their host stars? Clues from wide binaries" }, "parent": { "access": { "owned_by": { "user": "1674948" }, "settings": { "accept_conditions_text": null, "allow_guest_requests": false, "allow_user_requests": false, "secret_link_expiration": 0 } }, "communities": { "default": "9ba7fd7e-a60f-4b7a-b3da-a178c21c5fda", "entries": [ { "access": { "member_policy": "open", "members_visibility": "public", "record_submission_policy": "open", "review_policy": "closed", "visibility": "public" }, "children": { "allow": false }, "created": "2026-04-06T12:19:20.716447+00:00", "custom_fields": { "subjects": [ { "id": "euroscivoc:769" }, { "id": "euroscivoc:763" }, { "id": "euroscivoc:1807" }, { "id": "euroscivoc:757" } ] }, "deletion_status": { "is_deleted": false, "status": "P" }, "id": "9ba7fd7e-a60f-4b7a-b3da-a178c21c5fda", "links": {}, "metadata": { "curation_policy": "

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