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"name": "Institut f\u00fcr Astrophysik G\u00f6ttingen" } ], "person_or_org": { "family_name": "Shan", "given_name": "Yutong", "name": "Shan, Yutong", "type": "personal" } }, { "affiliations": [ { "name": "Institut f\u00fcr Astrophysik G\u00f6ttingen" } ], "person_or_org": { "family_name": "Zechmeister", "given_name": "Matthias", "name": "Zechmeister, Matthias", "type": "personal" } } ], "description": "
We aim to review the spectral synthesis technique to derive the stellar atmospheric parameters (Teff, log g, and [Fe/H]) of 348 M dwarfs in light of the optical and near-infrared spectra obtained with CARMENES, the high-resolution, double-channel spectrograph installed at the 3.5 m telescope at the Calar Alto observatory (Spain). The analysis relies on the SteParSyn code as the preferred MCMC implementation of the spectral synthesis technique, along with 75 carefully selected, magnetically insensitive, Fe I and Ti I lines plus the γ- and \u03f5-TiO bands synthesised with a grid of BT-Settl model atmospheres and the turbospectrum code. To avoid potential degeneracies in the parameter space, we impose a Bayesian prior on Teff and log g based on comprehensive, multi-band photometric data available for the sample. As a benchmark test in Teff, log g, and [Fe/H] we place special emphasis on three special subsets in our sample, namely 14 M dwarfs with interferometric angular diameter measurements, 15 M+M systems, and 7 wide physical binaries harbouring an FGK-type primary with known metallicity.
", "languages": [ { "id": "eng", "title": { "en": "English" } } ], "publication_date": "2021-02-24", "publisher": "Zenodo", "references": [ { "reference": "Allard et al. 2012, Phil. Tr. R. Soc. London Ser. A, 370, 2765" }, { "reference": "Cifuentes et al. 2020, A&A, 642, A115" }, { "reference": "Mann et al. 2015, ApJ, 804, 1, A64" }, { "reference": "Montes et al. 2018, MNRAS, 479, 1332" }, { "reference": "Passegger et al. 2019, A&A, 627, A161" }, { "reference": "Plez 2012, Turbospectrum, Astrophysics Source Code Library" }, { "reference": "Tabernero et al. 2018. MNRAS, 476, 3106" }, { "reference": "Tabernero et al. 2021, A&A, 646, A98" } ], "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": "Cool Stars on the main sequence" } ], "title": "Stellar atmospheric parameters of CARMENES GTO M dwarfs with spectral synthesis and SteParSyn" }, "parent": { "access": { "owned_by": { "user": 53207 } }, "communities": { "default": "3a36ebe6-61f3-417e-a308-74ef84ccb263", "entries": [ { "access": { "member_policy": "open", "members_visibility": "public", "record_policy": "open", "review_policy": "open", "visibility": "public" }, "children": { "allow": false }, "created": "2021-01-13T17:28:36.286355+00:00", "custom_fields": {}, "deletion_status": { "is_deleted": false, "status": "P" }, "id": "3a36ebe6-61f3-417e-a308-74ef84ccb263", "links": {}, "metadata": { "curation_policy": "Contributions are accepted from participants that presented invited plenary session reviews, contributed plenary session talks, short "Haiku" talks and contributed posters. In addition, individual and collective contributions from (parallel) Topical Interest Rooms are welcome. If you would like to submit a typical conference proceeding, there are no formal page limits. For guidance we recommend you limit yourself to 4-8 pages for contributed talks and 10-15 pages for invited talks. Those wishing to submit a written conference proceeding are encouraged to format the document using the CS20 LaTeX template (available on https://github.com/CoolStars20/proceedings/releases/latest). All such submissions should be made as PDFs and will be reviewed for content by the SOC and we may suggest edits.
\r\n\r\nSubmission of presentation slides from speakers and full posters are also encouraged. PDF versions of these documents are the preferred format for Zenodo contributions to permit the documents to be previewed in a web browser. For maximum impact, a written contribution may be provided with presentation slides and/or a poster to provide greater context. Contributions will be checked for the proper metadata. Instructions about how to prepare your contribution are available on http://coolstars20.cfa.harvard.edu/contributions.html
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