TY - JOUR
T1 - The Pristine survey XIII
T2 - Uncovering the very metal-poor tail of the thin disc
AU - Fernández-Alvar, Emma
AU - Kordopatis, Georges
AU - Hill, Vanessa
AU - Starkenburg, Else
AU - Viswanathan, Akshara
AU - Martin, Nicolas F.
AU - Thomas, Guillaume F.
AU - Navarro, Julio F.
AU - Malhan, Khyati
AU - Sestito, Federico
AU - Hernández, Jonay I. González
AU - Carlberg, Raymond G.
N1 - 18 pages, 14 figures. Accepted for publication in MNRAS
PY - 2021/6/7
Y1 - 2021/6/7
N2 - We evaluate the rotational velocity of stars observed by the Pristine survey towards the Galactic anticentre, spanning a wide range of metallicities from the extremely metal-poor regime ($\mathrm{[Fe/H]} -1.5$. Furthermore, we detect signatures of a "heated disc", the so-called Splash, at metallicities higher than $\sim-1.5$. Finally, at $\mathrm{[Fe/H]} < -1.5$ our anticentre sample is dominated by a kinematical halo with a net prograde motion.
AB - We evaluate the rotational velocity of stars observed by the Pristine survey towards the Galactic anticentre, spanning a wide range of metallicities from the extremely metal-poor regime ($\mathrm{[Fe/H]} -1.5$. Furthermore, we detect signatures of a "heated disc", the so-called Splash, at metallicities higher than $\sim-1.5$. Finally, at $\mathrm{[Fe/H]} < -1.5$ our anticentre sample is dominated by a kinematical halo with a net prograde motion.
KW - astro-ph.GA
KW - astro-ph.IM
KW - astro-ph.SR
U2 - 10.1093/mnras/stab2617
DO - 10.1093/mnras/stab2617
M3 - Article
SN - 0035-8711
JO - Monthly Notices of the Royal Astronomical Society (MNRAS)
JF - Monthly Notices of the Royal Astronomical Society (MNRAS)
ER -