The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy
<i>Context.<i/> The new CARMENES instrument comprises two high-resolution and high-stability spectrographs that are used to search for habitable planets around M dwarfs in the visible and near-infrared regime via the Doppler technique. <i>Aims.<i/> Characterising our target s...
Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
[2018]
|
| In: |
Astronomy and astrophysics
Year: 2018, Jahrgang: 615 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/201732312 |
| Online-Zugang: | Verlag, Volltext: https://doi.org/10.1051/0004-6361/201732312 Verlag, Volltext: https://www.aanda.org/articles/aa/abs/2018/07/aa32312-17/aa32312-17.html 
|
| Verfasserangaben: | V.M. Passegger, A. Reiners, S.V. Jeffers, S. Wende-von Berg, P. Schöfer, J.A. Caballero, A. Schweitzer, P.J. Amado, V.J.S. Béjar, M. Cortés-Contreras, A.P. Hatzes, M. Kürster, D. Montes, S. Pedraz, A. Quirrenbach, I. Ribas, and W. Seifert |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1690286156 | ||
| 003 | DE-627 | ||
| 005 | 20220817233308.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 200218s2018 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/201732312 |2 doi | |
| 035 | |a (DE-627)1690286156 | ||
| 035 | |a (DE-599)KXP1690286156 | ||
| 035 | |a (OCoLC)1341307268 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Passegger, Vera Maria |e VerfasserIn |0 (DE-588)1204963576 |0 (DE-627)1690287209 |4 aut | |
| 245 | 1 | 4 | |a The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy |c V.M. Passegger, A. Reiners, S.V. Jeffers, S. Wende-von Berg, P. Schöfer, J.A. Caballero, A. Schweitzer, P.J. Amado, V.J.S. Béjar, M. Cortés-Contreras, A.P. Hatzes, M. Kürster, D. Montes, S. Pedraz, A. Quirrenbach, I. Ribas, and W. Seifert |
| 264 | 1 | |c [2018] | |
| 300 | |b Illustrationen | ||
| 300 | |a 11 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Gesehen am 18.02.2020 | ||
| 520 | |a <i>Context.<i/> The new CARMENES instrument comprises two high-resolution and high-stability spectrographs that are used to search for habitable planets around M dwarfs in the visible and near-infrared regime via the Doppler technique. <i>Aims.<i/> Characterising our target sample is important for constraining the physical properties of any planetary systems that are detected. The aim of this paper is to determine the fundamental stellar parameters of the CARMENES M-dwarf target sample from high-resolution spectra observed with CARMENES. We also include several M-dwarf spectra observed with other high-resolution spectrographs, that is CAFE, FEROS, and HRS, for completeness.<i>Methods.<i/> We used a <i>χ<i/><sup>2<sup/> method to derive the stellar parameters effective temperature <i>T<i/><sub>eff<sub/>, surface gravity log<i>g<i/>, and metallicity [Fe/H] of the target stars by fitting the most recent version of the PHOENIX-ACES models to high-resolution spectroscopic data. These stellar atmosphere models incorporate a new equation of state to describe spectral features of low-temperature stellar atmospheres. Since <i>T<i/><sub>eff<sub/>, log<i>g<i/>, and [Fe/H] show degeneracies, the surface gravity is determined independently using stellar evolutionary models.<i>Results.<i/> We derive the stellar parameters for a total of 300 stars. The fits achieve very good agreement between the PHOENIX models and observed spectra. We estimate that our method provides parameters with uncertainties of K, <i>σ<i/><sub>log <i>g<i/><sub/> = 0.07, and <i>σ<i/><sub>[Fe/H]<sub/> = 0.16, and show that atmosphere models for low-mass stars have significantly improved in the last years. Our work also provides an independent test of the new PHOENIX-ACES models, and a comparison for other methods using low-resolution spectra. In particular, our effective temperatures agree well with literature values, while metallicities determined with our method exhibit a larger spread when compared to literature results. | ||
| 700 | 1 | |a Caballero, José A. |d 1977- |e VerfasserIn |0 (DE-588)1155509714 |0 (DE-627)1017775877 |0 (DE-576)501692959 |4 aut | |
| 700 | 1 | |a Quirrenbach, Andreas |e VerfasserIn |0 (DE-588)112240623 |0 (DE-627)593634780 |0 (DE-576)304098167 |4 aut | |
| 700 | 1 | |a Seifert, Walter |e VerfasserIn |0 (DE-588)1035685094 |0 (DE-627)749377011 |0 (DE-576)383435501 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 615(2018) Artikel-Nummer A6, Seite 1-11, 11 Seiten |h Online-Ressource |w (DE-627)253390222 |w (DE-600)1458466-9 |w (DE-576)072283351 |x 1432-0746 |7 nnas |a The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy |
| 773 | 1 | 8 | |g volume:615 |g year:2018 |g extent:11 |a The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/201732312 |x Verlag |x Resolving-System |3 Volltext |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2018/07/aa32312-17/aa32312-17.html |x Verlag |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20200218 | ||
| 993 | |a Article | ||
| 994 | |a 2018 | ||
| 998 | |g 1035685094 |a Seifert, Walter |m 1035685094:Seifert, Walter |d 700000 |d 714000 |d 714300 |e 700000PS1035685094 |e 714000PS1035685094 |e 714300PS1035685094 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714300/ |p 17 |y j | ||
| 998 | |g 112240623 |a Quirrenbach, Andreas |m 112240623:Quirrenbach, Andreas |d 700000 |d 714000 |d 714300 |e 700000PQ112240623 |e 714000PQ112240623 |e 714300PQ112240623 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714300/ |p 15 | ||
| 998 | |g 1155509714 |a Caballero, José A. |m 1155509714:Caballero, José A. |d 700000 |d 714000 |d 714300 |e 700000PC1155509714 |e 714000PC1155509714 |e 714300PC1155509714 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714300/ |p 6 | ||
| 999 | |a KXP-PPN1690286156 |e 3596620287 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"person":[{"display":"Passegger, Vera Maria","family":"Passegger","given":"Vera Maria","role":"aut"},{"display":"Caballero, José A.","family":"Caballero","given":"José A.","role":"aut"},{"role":"aut","given":"Andreas","family":"Quirrenbach","display":"Quirrenbach, Andreas"},{"role":"aut","given":"Walter","family":"Seifert","display":"Seifert, Walter"}],"id":{"doi":["10.1051/0004-6361/201732312"],"eki":["1690286156"]},"title":[{"title_sort":"CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy","title":"The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopy"}],"relHost":[{"language":["eng"],"recId":"253390222","note":["Gesehen am 21.06.2024","Erscheint 36mal jährlich in 12 Bänden zu je 3 Ausgaben","Fortsetzung der Druck-Ausgabe"],"origin":[{"publisherPlace":"Les Ulis ; Berlin ; Heidelberg","dateIssuedKey":"1969","publisher":"EDP Sciences ; Springer","dateIssuedDisp":"1969-"}],"pubHistory":["1.1969 -"],"name":{"displayForm":["European Southern Observatory (ESO)"]},"disp":"The CARMENES search for exoplanets around M dwarfs - photospheric parameters of target stars from high-resolution spectroscopyAstronomy and astrophysics","titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}],"part":{"extent":"11","volume":"615","text":"615(2018) Artikel-Nummer A6, Seite 1-11, 11 Seiten","year":"2018"},"id":{"eki":["253390222"],"issn":["1432-0746"],"zdb":["1458466-9"]},"title":[{"title":"Astronomy and astrophysics","title_sort":"Astronomy and astrophysics","subtitle":"an international weekly journal"}],"physDesc":[{"extent":"Online-Ressource"}],"type":{"bibl":"periodical","media":"Online-Ressource"},"corporate":[{"display":"European Southern Observatory","role":"isb"}]}],"physDesc":[{"extent":"11 S.","noteIll":"Illustrationen"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"recId":"1690286156","note":["Gesehen am 18.02.2020"],"language":["eng"],"origin":[{"dateIssuedDisp":"[2018]","dateIssuedKey":"2018"}],"name":{"displayForm":["V.M. Passegger, A. Reiners, S.V. Jeffers, S. Wende-von Berg, P. Schöfer, J.A. Caballero, A. Schweitzer, P.J. Amado, V.J.S. Béjar, M. Cortés-Contreras, A.P. Hatzes, M. Kürster, D. Montes, S. Pedraz, A. Quirrenbach, I. Ribas, and W. Seifert"]}} | ||
| SRT | |a PASSEGGERVCARMENESSE2018 | ||