X-shooting ULLYSES: massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars
Context. Massive stars rotate faster, on average, than lower mass stars. Stellar rotation triggers hydrodynamical instabilities which transport angular momentum and chemical species from the core to the surface. Models of high-mass stars that include these processes predict that chemical mixing is s...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
September 2024
|
| In: |
Astronomy and astrophysics
Year: 2024, Jahrgang: 689, Pages: 1-50 |
| ISSN: | 1432-0746 |
| DOI: | 10.1051/0004-6361/202449457 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1051/0004-6361/202449457 Verlag, kostenfrei, Volltext: https://www.aanda.org/articles/aa/abs/2024/09/aa49457-24/aa49457-24.html 
|
| Verfasserangaben: | F. Martins, J.-C. Bouret, D.J. Hillier, S.A. Brands, P.A. Crowther, A. Herrero, F. Najarro, D. Pauli, J. Puls, V. Ramachandran, A.a.C. Sander, J.S. Vink, and the XShootU Collaboration |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1919619267 | ||
| 003 | DE-627 | ||
| 005 | 20250717000732.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 250312s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1051/0004-6361/202449457 |2 doi | |
| 035 | |a (DE-627)1919619267 | ||
| 035 | |a (DE-599)KXP1919619267 | ||
| 035 | |a (OCoLC)1528042895 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Martins, Fabrice |d 1976- |e VerfasserIn |0 (DE-588)135957395X |0 (DE-627)1919620907 |4 aut | |
| 245 | 1 | 0 | |a X-shooting ULLYSES |b massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars |c F. Martins, J.-C. Bouret, D.J. Hillier, S.A. Brands, P.A. Crowther, A. Herrero, F. Najarro, D. Pauli, J. Puls, V. Ramachandran, A.a.C. Sander, J.S. Vink, and the XShootU Collaboration |
| 264 | 1 | |c September 2024 | |
| 300 | |b Illustrationen | ||
| 300 | |a 50 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Online veröffentlicht: 30 August 2024 | ||
| 500 | |a Gesehen am 12.03.2025 | ||
| 520 | |a Context. Massive stars rotate faster, on average, than lower mass stars. Stellar rotation triggers hydrodynamical instabilities which transport angular momentum and chemical species from the core to the surface. Models of high-mass stars that include these processes predict that chemical mixing is stronger at lower metallicity. Aims. We aim to test this prediction by comparing the surface abundances of massive stars at different metallicities. Methods. We performed a spectroscopic analysis of single O stars in the Magellanic Clouds (MCs) based on the ULLYSES and XShootU surveys. We determined the fundamental parameters and helium, carbon, nitrogen, and oxygen surface abundances of 17 LMC and 17 SMC non-supergiant O6-9.5 stars. We complemented these determinations by literature results for additional MCs and also Galactic stars to increase the sample size and metallicity coverage. We investigated the differences in the surface chemical enrichment at different metallicities and compared them with predictions of three sets of evolutionary models. Results. Surface abundances are consistent with CNO-cycle nucleosynthesis. The maximum surface nitrogen enrichment is stronger in MC stars than in Galactic stars. Nitrogen enrichment is also observed in stars with higher surface gravities in the SMC than in the Galaxy. This trend is predicted by models that incorporate chemical transport caused by stellar rotation. The distributions of projected rotational velocities in our samples are likely biased towards slow rotators. Conclusions. A metallicity dependence of surface abundances is demonstrated. The analysis of larger samples with an unbiased distribution of projected rotational velocities is required to better constrain the treatment of chemical mixing and angular momentum transport in massive single and binary stars. | ||
| 700 | 1 | |a Bouret, J.-C. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hillier, D. J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Brands, S. A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Crowther, P. A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Herrero, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Najarro, F. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Pauli, D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Puls, J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Ramachandran, Varsha |e VerfasserIn |0 (DE-588)1195070268 |0 (DE-627)1677246847 |4 aut | |
| 700 | 1 | |a Sander, Andreas A. C. |e VerfasserIn |0 (DE-588)1083288482 |0 (DE-627)847936775 |0 (DE-576)455682348 |4 aut | |
| 700 | 1 | |a Vink, J. S. |e VerfasserIn |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Astronomy and astrophysics |d Les Ulis : EDP Sciences, 1969 |g 689(2024) vom: Sept., Artikel-ID A31, Seite 1-50 |h Online-Ressource |w (DE-627)253390222 |w (DE-600)1458466-9 |w (DE-576)072283351 |x 1432-0746 |7 nnas |a X-shooting ULLYSES massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars |
| 773 | 1 | 8 | |g volume:689 |g year:2024 |g month:09 |g elocationid:A31 |g pages:1-50 |g extent:50 |a X-shooting ULLYSES massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars |
| 856 | 4 | 0 | |u https://doi.org/10.1051/0004-6361/202449457 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |
| 856 | 4 | 0 | |u https://www.aanda.org/articles/aa/abs/2024/09/aa49457-24/aa49457-24.html |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20250312 | ||
| 993 | |a Article | ||
| 994 | |a 2024 | ||
| 998 | |g 1083288482 |a Sander, Andreas A. C. |m 1083288482:Sander, Andreas A. C. |d 700000 |d 714000 |d 714100 |e 700000PS1083288482 |e 714000PS1083288482 |e 714100PS1083288482 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714100/ |p 11 | ||
| 998 | |g 1195070268 |a Ramachandran, Varsha |m 1195070268:Ramachandran, Varsha |d 700000 |d 714000 |d 714100 |e 700000PR1195070268 |e 714000PR1195070268 |e 714100PR1195070268 |k 0/700000/ |k 1/700000/714000/ |k 2/700000/714000/714100/ |p 10 | ||
| 999 | |a KXP-PPN1919619267 |e 4686303060 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"name":{"displayForm":["F. Martins, J.-C. Bouret, D.J. Hillier, S.A. Brands, P.A. Crowther, A. Herrero, F. Najarro, D. Pauli, J. Puls, V. Ramachandran, A.a.C. Sander, J.S. Vink, and the XShootU Collaboration"]},"title":[{"subtitle":"massive stars at low metallicity : V. Effect of metallicity on surface abundances of O stars","title_sort":"X-shooting ULLYSES","title":"X-shooting ULLYSES"}],"type":{"bibl":"article-journal","media":"Online-Ressource"},"id":{"doi":["10.1051/0004-6361/202449457"],"eki":["1919619267"]},"person":[{"family":"Martins","role":"aut","display":"Martins, Fabrice","given":"Fabrice"},{"given":"J.-C.","role":"aut","display":"Bouret, J.-C.","family":"Bouret"},{"family":"Hillier","role":"aut","display":"Hillier, D. J.","given":"D. J."},{"family":"Brands","role":"aut","display":"Brands, S. A.","given":"S. A."},{"given":"P. A.","role":"aut","display":"Crowther, P. A.","family":"Crowther"},{"family":"Herrero","display":"Herrero, A.","role":"aut","given":"A."},{"given":"F.","role":"aut","display":"Najarro, F.","family":"Najarro"},{"display":"Pauli, D.","role":"aut","family":"Pauli","given":"D."},{"family":"Puls","display":"Puls, J.","role":"aut","given":"J."},{"family":"Ramachandran","display":"Ramachandran, Varsha","role":"aut","given":"Varsha"},{"role":"aut","display":"Sander, Andreas A. C.","family":"Sander","given":"Andreas A. C."},{"family":"Vink","display":"Vink, J. S.","role":"aut","given":"J. S."}],"origin":[{"dateIssuedKey":"2024","dateIssuedDisp":"September 2024"}],"language":["eng"],"note":["Online veröffentlicht: 30 August 2024","Gesehen am 12.03.2025"],"relHost":[{"language":["eng"],"pubHistory":["1.1969 -"],"name":{"displayForm":["European Southern Observatory (ESO)"]},"title":[{"subtitle":"an international weekly journal","title_sort":"Astronomy and astrophysics","title":"Astronomy and astrophysics"}],"disp":"X-shooting ULLYSES massive stars at low metallicity : V. Effect of metallicity on surface abundances of O starsAstronomy and astrophysics","origin":[{"publisher":"EDP Sciences ; Springer","dateIssuedKey":"1969","publisherPlace":"Les Ulis ; Berlin ; Heidelberg","dateIssuedDisp":"1969-"}],"part":{"year":"2024","text":"689(2024) vom: Sept., Artikel-ID A31, Seite 1-50","extent":"50","volume":"689","pages":"1-50"},"id":{"eki":["253390222"],"issn":["1432-0746"],"zdb":["1458466-9"]},"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"}],"physDesc":[{"extent":"Online-Ressource"}],"recId":"253390222","type":{"media":"Online-Ressource","bibl":"periodical"},"titleAlt":[{"title":"Astronomy & astrophysics"},{"title":"a European journal"}]}],"recId":"1919619267","physDesc":[{"noteIll":"Illustrationen","extent":"50 S."}]} | ||
| SRT | |a MARTINSFABXSHOOTINGU2024 | ||