21 citations · 21 across the 1 of their papers we have counts for
8 papers
Chemically peculiar A and F stars with enhanced s-process and iron-peak elements: stellar radiative acceleration at work
Maosheng Xiang, Hans-Walter Rix, Yuan-Sen Ting +6
We present metal-rich (dex) A and F stars whose surface abundances deviate strongly from Solar abundance ratios and cannot plausibly reflect the…
From birth associations to field stars: mapping the small-scale orbit distribution in the Galactic disc
Johanna Coronado, Hans-Walter Rix, Wilma H. Trick +3
Stars born at the same time in the same place should have formed from gas of the same element composition. But most stars subsequently disperse from their birth siblings, in orbit…
The R-Process Alliance: Spectroscopic Follow-up of Low-Metallicity Star Candidates from the Best & Brightest Survey
Vinicius M. Placco, Rafael M. Santucci, Timothy C. Beers +17
We present results from an observing campaign to identify low-metallicity stars in the Best & Brightest Survey. From medium-resolution (R ~ 1, 200 - 2, 000) spectroscopy of 857 can…
Discriminating among theories of spiral structure using Gaia DR2
J. A. Sellwood, Wilma Trick, Ray Carlberg +2
We compare the distribution in position and velocity of nearby stars from the Gaia DR2 radial velocity sample with predictions of current theories for spirals in disc galaxies. Alt…
Spectroscopic Validation of Low-Metallicity Stars from RAVE
Vinicius M. Placco, Timothy C. Beers, Rafael M. Santucci +16
We present results from a medium-resolution (R ~ 2, 000) spectroscopic follow-up campaign of 1,694 bright (V < 13.5), very metal-poor star candidates from the RAdial Velocity Exper…
The Galactic Disc in Action Space as seen by Gaia DR2
Wilma H. Trick, Johanna Coronado, Hans-Walter Rix
The quality and quantity of 6D stellar position-velocity measurements in the second Gaia data release (DR2) allows to study small-scale structure in the orbit distribution of the G…