The pristine inner Galaxy survey: VIII. Characterizing the orbital properties of the ancient, very metal-poor inner Milky Way
The oldest stars in the Milky Way (born in the first few billion years) are expected to have a high density in the inner few kpc, spatially overlapping with the Galactic bulge. We use spectroscopic data from the Pristine Inner Galaxy Survey (PIGS) to study the dynamical properties of ancient, metal-...
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
May 2024
|
| In: |
Monthly notices of the Royal Astronomical Society
Year: 2024, Jahrgang: 530, Heft: 3, Pages: 3391-3411 |
| ISSN: | 1365-2966 |
| DOI: | 10.1093/mnras/stae1049 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1093/mnras/stae1049
|
| Verfasserangaben: | Anke Ardern-Arentsen, Giacomo Monari, Anna B.A. Queiroz, Else Starkenburg, Nicolas F. Martin, Cristina Chiappini, David S. Aguado, Vasily Belokurov, Ray Carlberg, Stephanie Monty, GyuChul Myeong, Mathias Schultheis, Federico Sestito, Kim A. Venn, Sara Vitali, Zhen Yuan, Hanyuan Zhang, Sven Buder, Geraint F. Lewis, William H. Oliver, Zhen Wan and Daniel B. Zucker |
MARC
| LEADER | 00000caa a2200000 c 4500 | ||
|---|---|---|---|
| 001 | 1919766979 | ||
| 003 | DE-627 | ||
| 005 | 20250717001125.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 250314s2024 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1093/mnras/stae1049 |2 doi | |
| 035 | |a (DE-627)1919766979 | ||
| 035 | |a (DE-599)KXP1919766979 | ||
| 035 | |a (OCoLC)1528042899 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rda | ||
| 041 | |a eng | ||
| 084 | |a 29 |2 sdnb | ||
| 100 | 1 | |a Ardern-Arentsen, Anke |e VerfasserIn |0 (DE-588)1359821236 |0 (DE-627)191976786X |4 aut | |
| 245 | 1 | 4 | |a The pristine inner Galaxy survey |b VIII. Characterizing the orbital properties of the ancient, very metal-poor inner Milky Way |c Anke Ardern-Arentsen, Giacomo Monari, Anna B.A. Queiroz, Else Starkenburg, Nicolas F. Martin, Cristina Chiappini, David S. Aguado, Vasily Belokurov, Ray Carlberg, Stephanie Monty, GyuChul Myeong, Mathias Schultheis, Federico Sestito, Kim A. Venn, Sara Vitali, Zhen Yuan, Hanyuan Zhang, Sven Buder, Geraint F. Lewis, William H. Oliver, Zhen Wan and Daniel B. Zucker |
| 264 | 1 | |c May 2024 | |
| 300 | |b Illustrationen | ||
| 300 | |a 21 | ||
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a Computermedien |b c |2 rdamedia | ||
| 338 | |a Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Veröffentlicht: 18 April 2024 | ||
| 500 | |a Gesehen am 14.03.2025 | ||
| 520 | |a The oldest stars in the Milky Way (born in the first few billion years) are expected to have a high density in the inner few kpc, spatially overlapping with the Galactic bulge. We use spectroscopic data from the Pristine Inner Galaxy Survey (PIGS) to study the dynamical properties of ancient, metal-poor inner Galaxy stars. We compute distances using starhorse, and orbital properties in a barred Galactic potential. With this paper, we release the spectroscopic AAT/PIGS catalogue (13 235 stars). We find that most PIGS stars have orbits typical for a pressure-supported population. The fraction of stars confined to the inner Galaxy decreases with decreasing metallicity, but many very metal-poor stars (VMP; [Fe/H] <−2.0) stay confined ($\sim 60~{{\ \rm per \, cent}}$ stay within 5 kpc). The azimuthal velocity vϕ also decreases between [Fe/H] = −1.0 and −2.0, but is constant for VMP stars (at ∼+40 km s−1). The carbon-enhanced metal-poor (CEMP) stars in PIGS appear to have similar orbital properties compared to normal VMP stars. Our results suggest a possible transition between two spheroidal components - a more metal-rich, more concentrated, faster rotating component, and a more metal-poor, more extended and slower/non-rotating component. We propose that the former may be connected to pre-disc in-situ stars (or those born in large building blocks), whereas the latter may be dominated by contributions from smaller galaxies. This is an exciting era where large metal-poor samples, such as in this work (as well as upcoming surveys, e.g. 4MOST), shed light on the earliest evolution of our Galaxy. | ||
| 700 | 1 | |a Monari, Giacomo |e VerfasserIn |4 aut | |
| 700 | 1 | |a Queiroz, Anna B A |e VerfasserIn |4 aut | |
| 700 | 1 | |a Starkenburg, Else |e VerfasserIn |4 aut | |
| 700 | 1 | |a Martin, Nicolas F |e VerfasserIn |4 aut | |
| 700 | 1 | |a Chiappini, Cristina |e VerfasserIn |4 aut | |
| 700 | 1 | |a Aguado, David S |e VerfasserIn |4 aut | |
| 700 | 1 | |a Belokurov, Vasily |e VerfasserIn |4 aut | |
| 700 | 1 | |a Carlberg, Ray |e VerfasserIn |4 aut | |
| 700 | 1 | |a Monty, Stephanie |e VerfasserIn |4 aut | |
| 700 | 1 | |a Myeong, GyuChul |e VerfasserIn |4 aut | |
| 700 | 1 | |a Schultheis, Mathias |e VerfasserIn |4 aut | |
| 700 | 1 | |a Sestito, Federico |e VerfasserIn |4 aut | |
| 700 | 1 | |a Venn, Kim A |e VerfasserIn |4 aut | |
| 700 | 1 | |a Vitali, Sara |e VerfasserIn |4 aut | |
| 700 | 1 | |a Yuan, Zhen |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zhang, Hanyuan |e VerfasserIn |4 aut | |
| 700 | 1 | |a Buder, Sven |e VerfasserIn |4 aut | |
| 700 | 1 | |a Lewis, Geraint F |e VerfasserIn |4 aut | |
| 700 | 1 | |a Oliver, William H. |e VerfasserIn |0 (DE-588)1354621018 |0 (DE-627)1915765161 |4 aut | |
| 700 | 1 | |a Wan, Zhen |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zucker, Daniel B |e VerfasserIn |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |a Royal Astronomical Society |t Monthly notices of the Royal Astronomical Society |d Oxford : Oxford Univ. Press, 1827 |g 530(2024), 3 vom: Mai, Seite 3391-3411 |h Online-Ressource |w (DE-627)314059164 |w (DE-600)2016084-7 |w (DE-576)090955420 |x 1365-2966 |7 nnas |
| 773 | 1 | 8 | |g volume:530 |g year:2024 |g number:3 |g month:05 |g pages:3391-3411 |g extent:21 |a The pristine inner Galaxy survey VIII. Characterizing the orbital properties of the ancient, very metal-poor inner Milky Way |
| 856 | 4 | 0 | |u https://doi.org/10.1093/mnras/stae1049 |x Verlag |x Resolving-System |z kostenfrei |3 Volltext |
| 951 | |a AR | ||
| 992 | |a 20250314 | ||
| 993 | |a Article | ||
| 994 | |a 2024 | ||
| 998 | |g 1354621018 |a Oliver, William H. |m 1354621018:Oliver, William H. |d 700000 |d 708000 |e 700000PO1354621018 |e 708000PO1354621018 |k 0/700000/ |k 1/700000/708000/ |p 20 | ||
| 999 | |a KXP-PPN1919766979 |e 4686939720 | ||
| BIB | |a Y | ||
| SER | |a journal | ||
| JSO | |a {"title":[{"subtitle":"VIII. Characterizing the orbital properties of the ancient, very metal-poor inner Milky Way","title":"The pristine inner Galaxy survey","title_sort":"pristine inner Galaxy survey"}],"language":["eng"],"name":{"displayForm":["Anke Ardern-Arentsen, Giacomo Monari, Anna B.A. Queiroz, Else Starkenburg, Nicolas F. Martin, Cristina Chiappini, David S. Aguado, Vasily Belokurov, Ray Carlberg, Stephanie Monty, GyuChul Myeong, Mathias Schultheis, Federico Sestito, Kim A. Venn, Sara Vitali, Zhen Yuan, Hanyuan Zhang, Sven Buder, Geraint F. Lewis, William H. Oliver, Zhen Wan and Daniel B. Zucker"]},"person":[{"given":"Anke","role":"aut","display":"Ardern-Arentsen, Anke","family":"Ardern-Arentsen"},{"role":"aut","given":"Giacomo","display":"Monari, Giacomo","family":"Monari"},{"family":"Queiroz","role":"aut","given":"Anna B A","display":"Queiroz, Anna B A"},{"family":"Starkenburg","role":"aut","given":"Else","display":"Starkenburg, Else"},{"display":"Martin, Nicolas F","given":"Nicolas F","role":"aut","family":"Martin"},{"display":"Chiappini, Cristina","role":"aut","given":"Cristina","family":"Chiappini"},{"family":"Aguado","role":"aut","given":"David S","display":"Aguado, David S"},{"family":"Belokurov","given":"Vasily","role":"aut","display":"Belokurov, Vasily"},{"role":"aut","given":"Ray","display":"Carlberg, Ray","family":"Carlberg"},{"given":"Stephanie","role":"aut","display":"Monty, Stephanie","family":"Monty"},{"family":"Myeong","display":"Myeong, GyuChul","role":"aut","given":"GyuChul"},{"display":"Schultheis, Mathias","role":"aut","given":"Mathias","family":"Schultheis"},{"family":"Sestito","display":"Sestito, Federico","role":"aut","given":"Federico"},{"given":"Kim A","role":"aut","display":"Venn, Kim A","family":"Venn"},{"family":"Vitali","given":"Sara","role":"aut","display":"Vitali, Sara"},{"given":"Zhen","role":"aut","display":"Yuan, Zhen","family":"Yuan"},{"family":"Zhang","given":"Hanyuan","role":"aut","display":"Zhang, Hanyuan"},{"family":"Buder","display":"Buder, Sven","role":"aut","given":"Sven"},{"family":"Lewis","display":"Lewis, Geraint F","role":"aut","given":"Geraint F"},{"family":"Oliver","display":"Oliver, William H.","role":"aut","given":"William H."},{"display":"Wan, Zhen","given":"Zhen","role":"aut","family":"Wan"},{"role":"aut","given":"Daniel B","display":"Zucker, Daniel B","family":"Zucker"}],"origin":[{"dateIssuedDisp":"May 2024","dateIssuedKey":"2024"}],"recId":"1919766979","type":{"bibl":"article-journal","media":"Online-Ressource"},"id":{"eki":["1919766979"],"doi":["10.1093/mnras/stae1049"]},"physDesc":[{"extent":"21 S.","noteIll":"Illustrationen"}],"note":["Veröffentlicht: 18 April 2024","Gesehen am 14.03.2025"],"relHost":[{"title":[{"title":"Monthly notices of the Royal Astronomical Society","title_sort":"Monthly notices of the Royal Astronomical Society"}],"part":{"volume":"530","text":"530(2024), 3 vom: Mai, Seite 3391-3411","year":"2024","pages":"3391-3411","extent":"21","issue":"3"},"language":["eng"],"pubHistory":["1.1827 -"],"id":{"doi":["10.1111/(ISSN)1365-2966"],"zdb":["2016084-7"],"issn":["1365-2966"],"eki":["314059164"]},"disp":"Royal Astronomical SocietyMonthly notices of the Royal Astronomical Society","physDesc":[{"extent":"Online-Ressource"}],"corporate":[{"role":"aut","display":"Royal Astronomical Society"}],"note":["Gesehen am 15.01.2018"],"type":{"bibl":"periodical","media":"Online-Ressource"},"origin":[{"publisherPlace":"Oxford ; Oxford [u.a.] ; Oxford [u.a.]","dateIssuedKey":"1827","publisher":"Oxford Univ. Press ; Blackwell ; Wiley-Blackwell","dateIssuedDisp":"1827-"}],"recId":"314059164"}]} | ||
| SRT | |a ARDERNARENPRISTINEIN2024 | ||