The CARMENES search for exoplanets around M dwarfs: not-so-fine hyperfine-split vanadium lines in cool star spectra
Context. M-dwarf spectra are complex and notoriously difficult to model, posing challenges to understanding their photospheric properties and compositions in depth. Vanadium (V) is an iron-group element whose abundance supposedly closely tracks that of iron, but has origins that are not completely u...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
20 October 2021
|
| In: |
Astronomy and astrophysics
Year: 2021, Jahrgang: 654, Pages: 1-22 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202141530 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/202141530 Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2021/10/aa41530-21/aa41530-21.html 
|
| Verfasserangaben: | Y. Shan, A. Reiners, D. Fabbian, E. Marfil, D. Montes, H.M. Tabernero, I. Ribas, J.A. Caballero, A. Quirrenbach, P.J. Amado, J. Aceituno, V.J.S. Béjar, M. Cortés-Contreras, S. Dreizler, A.P. Hatzes, Th. Henning, S.V. Jeffers, A. Kaminski, M. Kürster, M. Lafarga, J.C. Morales, E. Nagel, E. Pallé, V.M. Passegger, C. Rodriguez-López, A. Schweitzer, and M. Zechmeister |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1787761126 | ||
| 003 | DE-627 | ||
| 005 | 20220820115940.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 220129s2021 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/202141530 |2 doi | |
| 035 | |a (DE-627)1787761126 | ||
| 035 | |a (DE-599)KXP1787761126 | ||
| 035 | |a (OCoLC)1341439442 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Shan, Yutong |e VerfasserIn |0 (DE-588)1250602270 |0 (DE-627)1787761118 |4 aut | |
| 245 | 1 | 4 | |a The CARMENES search for exoplanets around M dwarfs |b not-so-fine hyperfine-split vanadium lines in cool star spectra |c Y. Shan, A. Reiners, D. Fabbian, E. Marfil, D. Montes, H.M. Tabernero, I. Ribas, J.A. Caballero, A. Quirrenbach, P.J. Amado, J. Aceituno, V.J.S. Béjar, M. Cortés-Contreras, S. Dreizler, A.P. Hatzes, Th. Henning, S.V. Jeffers, A. Kaminski, M. Kürster, M. Lafarga, J.C. Morales, E. Nagel, E. Pallé, V.M. Passegger, C. Rodriguez-López, A. Schweitzer, and M. Zechmeister |
| 264 | 1 | |c 20 October 2021 | |
| 300 | |a 22 | ||
| 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 29.01.2022 | ||
| 520 | |a Context. M-dwarf spectra are complex and notoriously difficult to model, posing challenges to understanding their photospheric properties and compositions in depth. Vanadium (V) is an iron-group element whose abundance supposedly closely tracks that of iron, but has origins that are not completely understood.Aims. Our aim is to characterize a series of neutral vanadium atomic absorption lines in the 800-910 nm wavelength region of high signal-to-noise, high-resolution, telluric-corrected M-dwarf spectra from the CARMENES survey. Many of these lines are prominent and exhibit a distinctive broad and flat-bottom shape, which is a result of hyperfine structure (HFS). We investigate the potential and implications of these HFS split lines for abundance analysis of cool stars.Methods. With standard spectral synthesis routines, as provided by the spectroscopy software iSpec and the latest atomic data (including HFS) available from the VALD3 database, we modeled these striking line profiles. We used them to measure V abundances of cool dwarfs.<i>Results. We determined V abundances for 135 early M dwarfs (M0.0 V to M3.5 V) in the CARMENES guaranteed time observations sample. They exhibit a [V/Fe]-[Fe/H] trend consistent with that derived from nearby FG dwarfs. The tight (±0.1 dex) correlation between [V/H] and [Fe/H] suggests the potential application of V as an alternative metallicity indicator in M dwarfs. We also show hints that neglecting to model HFS could partially explain the temperature correlation in V abundance measurements observed in previous studies of samples involving dwarf stars with Teff ≲ 5300 K.Conclusions. Our work suggests that HFS can impact certain absorption lines in cool photospheres more severely than in Sun-like ones. Therefore, we advocate that HFS should be carefully treated in abundance studies in stars cooler than ~5000 K. On the other hand, strong HFS split lines in high-resolution spectra present an opportunity for precision chemical analyses of large samples of cool stars. The V-to-Fe trends exhibited by the local M dwarfs continue to challenge theoretical models of V production in the Galaxy. | ||
| 700 | 1 | |a Reiners, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Fabbian, D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Marfil, E. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Montes, D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Tabernero, H. M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Ribas, I. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Caballero, J. A. |e VerfasserIn |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 Amado, P. J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Aceituno, J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Béjar, V. J. S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Cortés-Contreras, M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Dreizler, S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hatzes, A. P. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Henning, Thomas |d 1956- |e VerfasserIn |0 (DE-588)124568637 |0 (DE-627)526967811 |0 (DE-576)294236120 |4 aut | |
| 700 | 1 | |a Jeffers, S. V. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Kaminski, Adrian |e VerfasserIn |0 (DE-588)1043913025 |0 (DE-627)77104321X |0 (DE-576)396019099 |4 aut | |
| 700 | 1 | |a Kürster, Martin |d 1957- |e VerfasserIn |0 (DE-588)172200075 |0 (DE-627)697113655 |0 (DE-576)133070166 |4 aut | |
| 700 | 1 | |a Lafarga, M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Morales, J. C. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Nagel, E. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Pallé, E. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Passegger, V. M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Rodriguez-López, C. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Schweitzer, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zechmeister, M. |e VerfasserIn |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 654(2021), Artikel-ID A118, Seite 1-22 |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 not-so-fine hyperfine-split vanadium lines in cool star spectra |
| 773 | 1 | 8 | |g volume:654 |g year:2021 |g elocationid:A118 |g pages:1-22 |g extent:22 |a The CARMENES search for exoplanets around M dwarfs not-so-fine hyperfine-split vanadium lines in cool star spectra |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/202141530 |x Verlag |x Resolving-System |z lizenzpflichtig |3 Volltext |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2021/10/aa41530-21/aa41530-21.html |x Verlag |z lizenzpflichtig |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20220129 | ||
| 993 | |a Article | ||
| 994 | |a 2021 | ||
| 998 | |g 124568637 |a Henning, Thomas |m 124568637:Henning, Thomas |d 130000 |e 130000PH124568637 |k 0/130000/ | ||
| 998 | |g 1043913025 |a Kaminski, Adrian |m 1043913025:Kaminski, Adrian |d 700000 |d 714000 |d 714300 |e 700000PK1043913025 |e 714000PK1043913025 |e 714300PK1043913025 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714300/ |p 18 | ||
| 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 9 | ||
| 999 | |a KXP-PPN1787761126 |e 4048026828 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"note":["Gesehen am 29.01.2022"],"relHost":[{"titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}],"id":{"issn":["1432-0746"],"zdb":["1458466-9"],"eki":["253390222"]},"recId":"253390222","disp":"The CARMENES search for exoplanets around M dwarfs not-so-fine hyperfine-split vanadium lines in cool star spectraAstronomy and astrophysics","note":["Gesehen am 21.06.2024","Erscheint 36mal jährlich in 12 Bänden zu je 3 Ausgaben","Fortsetzung der Druck-Ausgabe"],"corporate":[{"display":"European Southern Observatory","role":"isb"}],"origin":[{"publisher":"EDP Sciences ; Springer","dateIssuedKey":"1969","publisherPlace":"Les Ulis ; Berlin ; Heidelberg","dateIssuedDisp":"1969-"}],"pubHistory":["1.1969 -"],"language":["eng"],"physDesc":[{"extent":"Online-Ressource"}],"part":{"year":"2021","extent":"22","text":"654(2021), Artikel-ID A118, Seite 1-22","volume":"654","pages":"1-22"},"type":{"media":"Online-Ressource","bibl":"periodical"},"title":[{"title_sort":"Astronomy and astrophysics","subtitle":"an international weekly journal","title":"Astronomy and astrophysics"}],"name":{"displayForm":["European Southern Observatory (ESO)"]}}],"physDesc":[{"extent":"22 S."}],"title":[{"title":"The CARMENES search for exoplanets around M dwarfs","subtitle":"not-so-fine hyperfine-split vanadium lines in cool star spectra","title_sort":"CARMENES search for exoplanets around M dwarfs"}],"person":[{"display":"Shan, Yutong","given":"Yutong","role":"aut","family":"Shan"},{"given":"A.","role":"aut","family":"Reiners","display":"Reiners, A."},{"given":"D.","role":"aut","family":"Fabbian","display":"Fabbian, D."},{"display":"Marfil, E.","role":"aut","given":"E.","family":"Marfil"},{"display":"Montes, D.","family":"Montes","given":"D.","role":"aut"},{"display":"Tabernero, H. M.","family":"Tabernero","role":"aut","given":"H. M."},{"family":"Ribas","given":"I.","role":"aut","display":"Ribas, I."},{"display":"Caballero, J. A.","family":"Caballero","given":"J. A.","role":"aut"},{"family":"Quirrenbach","role":"aut","given":"Andreas","display":"Quirrenbach, Andreas"},{"display":"Amado, P. J.","family":"Amado","role":"aut","given":"P. J."},{"family":"Aceituno","role":"aut","given":"J.","display":"Aceituno, J."},{"display":"Béjar, V. J. S.","family":"Béjar","role":"aut","given":"V. J. S."},{"family":"Cortés-Contreras","given":"M.","role":"aut","display":"Cortés-Contreras, M."},{"role":"aut","given":"S.","family":"Dreizler","display":"Dreizler, S."},{"display":"Hatzes, A. P.","role":"aut","given":"A. P.","family":"Hatzes"},{"display":"Henning, Thomas","family":"Henning","role":"aut","given":"Thomas"},{"family":"Jeffers","role":"aut","given":"S. V.","display":"Jeffers, S. V."},{"display":"Kaminski, Adrian","role":"aut","given":"Adrian","family":"Kaminski"},{"given":"Martin","role":"aut","family":"Kürster","display":"Kürster, Martin"},{"given":"M.","role":"aut","family":"Lafarga","display":"Lafarga, M."},{"role":"aut","given":"J. C.","family":"Morales","display":"Morales, J. C."},{"display":"Nagel, E.","family":"Nagel","role":"aut","given":"E."},{"display":"Pallé, E.","family":"Pallé","role":"aut","given":"E."},{"role":"aut","given":"V. M.","family":"Passegger","display":"Passegger, V. M."},{"given":"C.","role":"aut","family":"Rodriguez-López","display":"Rodriguez-López, C."},{"role":"aut","given":"A.","family":"Schweitzer","display":"Schweitzer, A."},{"display":"Zechmeister, M.","family":"Zechmeister","given":"M.","role":"aut"}],"name":{"displayForm":["Y. Shan, A. Reiners, D. Fabbian, E. Marfil, D. Montes, H.M. Tabernero, I. Ribas, J.A. Caballero, A. Quirrenbach, P.J. Amado, J. Aceituno, V.J.S. Béjar, M. Cortés-Contreras, S. Dreizler, A.P. Hatzes, Th. Henning, S.V. Jeffers, A. Kaminski, M. Kürster, M. Lafarga, J.C. Morales, E. Nagel, E. Pallé, V.M. Passegger, C. Rodriguez-López, A. Schweitzer, and M. Zechmeister"]},"origin":[{"dateIssuedKey":"2021","dateIssuedDisp":"20 October 2021"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"id":{"doi":["10.1051/0004-6361/202141530"],"eki":["1787761126"]},"recId":"1787761126","language":["eng"]} | ||
| SRT | |a SHANYUTONGCARMENESSE2020 | ||