Metallicity gradient of the thick disc progenitor at high redshift
We have developed a novel Markov Chain Mote Carlo (MCMC) chemical "painting" technique to explore possible radial and vertical metallicity gradients for the thick disc progenitor. In our analysis we match an N-body simulation to the data from the Apache Point Observatory Galactic Evolution...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Dokumenttyp: | Article (Journal) Kapitel/Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
2017
|
| In: |
Arxiv
|
| Online-Zugang: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1706.01474
|
| Verfasserangaben: | Daisuke Kawata, Carlos Allende Prieto, Chris B. Brook, Luca Casagrande, Ioana Ciucă, Brad K. Gibson, Robert J.J. Grand, Michael R. Hayden and Jason A.S. Hunt |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1571324844 | ||
| 003 | DE-627 | ||
| 005 | 20220814100357.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 180322s2017 xx |||||o 00| ||eng c | ||
| 035 | |a (DE-627)1571324844 | ||
| 035 | |a (DE-576)501324844 | ||
| 035 | |a (DE-599)BSZ501324844 | ||
| 035 | |a (OCoLC)1340994944 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Kawata, Daisuke |e VerfasserIn |0 (DE-588)1163823570 |0 (DE-627)1028165870 |0 (DE-576)508232252 |4 aut | |
| 245 | 1 | 0 | |a Metallicity gradient of the thick disc progenitor at high redshift |c Daisuke Kawata, Carlos Allende Prieto, Chris B. Brook, Luca Casagrande, Ioana Ciucă, Brad K. Gibson, Robert J.J. Grand, Michael R. Hayden and Jason A.S. Hunt |
| 264 | 1 | |c 2017 | |
| 300 | |a 13 | ||
| 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 22.03.2018 | ||
| 520 | |a We have developed a novel Markov Chain Mote Carlo (MCMC) chemical "painting" technique to explore possible radial and vertical metallicity gradients for the thick disc progenitor. In our analysis we match an N-body simulation to the data from the Apache Point Observatory Galactic Evolution Experiment (APOGEE) survey. We assume that the thick disc has a constant scale-height and has completed its formation at an early epoch, after which time radial mixing of its stars has taken place. Under these assumptions, we find that the initial radial metallicity gradient of the thick disc progenitor should not be negative, but either flat or even positive, to explain the current negative vertical metallicity gradient of the thick disc. Our study suggests that the thick disc was built-up in an inside-out and upside-down fashion, and older, smaller and thicker populations are more metal poor. In this case, star forming discs at different epochs of the thick disc formation are allowed to have different radial metallicity gradients, including a negative one, which helps to explain a variety of slopes observed in high redshift disc galaxies. This scenario helps to explain the positive slope of the metallicity-rotation velocity relation observed for the Galactic thick disc. On the other hand, radial mixing flattens the slope of an existing gradient. | ||
| 650 | 4 | |a Astrophysics - Astrophysics of Galaxies | |
| 700 | 1 | |a Grand, Robert J. J. |d 1987- |e VerfasserIn |0 (DE-588)1095688774 |0 (DE-627)856326674 |0 (DE-576)462843289 |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Arxiv |d Ithaca, NY : Cornell University, 1991 |g (2017) Artikel-Nummer 1706.01474, 13 Seiten |h Online-Ressource |w (DE-627)509006531 |w (DE-600)2225896-6 |w (DE-576)28130436X |7 nnas |a Metallicity gradient of the thick disc progenitor at high redshift |
| 773 | 1 | 8 | |g year:2017 |g extent:13 |a Metallicity gradient of the thick disc progenitor at high redshift |
| 856 | 4 | 0 | |u http://arxiv.org/abs/1706.01474 |x Verlag |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20180322 | ||
| 993 | |a Article | ||
| 998 | |g 1095688774 |a Grand, Robert J. J. |m 1095688774:Grand, Robert J. J. |d 500000 |d 500881 |e 500000PG1095688774 |e 500881PG1095688774 |k 0/500000/ |k 1/500000/500881/ |p 7 | ||
| 999 | |a KXP-PPN1571324844 |e 3003892487 | ||
| BIB | |a Y | ||
| JSO | |a {"relHost":[{"physDesc":[{"extent":"Online-Ressource"}],"id":{"eki":["509006531"],"zdb":["2225896-6"]},"origin":[{"publisherPlace":"Ithaca, NY ; [Erscheinungsort nicht ermittelbar]","dateIssuedDisp":"1991-","publisher":"Cornell University ; Arxiv.org","dateIssuedKey":"1991"}],"part":{"year":"2017","text":"(2017) Artikel-Nummer 1706.01474, 13 Seiten","extent":"13"},"titleAlt":[{"title":"Arxiv.org"},{"title":"Arxiv.org e-print archive"},{"title":"Arxiv e-print archive"},{"title":"De.arxiv.org"}],"pubHistory":["1991 -"],"recId":"509006531","language":["eng"],"disp":"Metallicity gradient of the thick disc progenitor at high redshiftArxiv","note":["Gesehen am 28.05.2024"],"type":{"media":"Online-Ressource","bibl":"edited-book"},"title":[{"title":"Arxiv","title_sort":"Arxiv"}]}],"physDesc":[{"extent":"13 S."}],"name":{"displayForm":["Daisuke Kawata, Carlos Allende Prieto, Chris B. Brook, Luca Casagrande, Ioana Ciucă, Brad K. Gibson, Robert J.J. Grand, Michael R. Hayden and Jason A.S. Hunt"]},"id":{"eki":["1571324844"]},"origin":[{"dateIssuedKey":"2017","dateIssuedDisp":"2017"}],"language":["eng"],"recId":"1571324844","type":{"bibl":"chapter","media":"Online-Ressource"},"note":["Gesehen am 22.03.2018"],"person":[{"roleDisplay":"VerfasserIn","display":"Kawata, Daisuke","role":"aut","family":"Kawata","given":"Daisuke"},{"family":"Grand","given":"Robert J. J.","roleDisplay":"VerfasserIn","display":"Grand, Robert J. J.","role":"aut"}],"title":[{"title":"Metallicity gradient of the thick disc progenitor at high redshift","title_sort":"Metallicity gradient of the thick disc progenitor at high redshift"}]} | ||
| SRT | |a KAWATADAISMETALLICIT2017 | ||