208 citations · 703 across the 10 of their papers we have counts for
6 papers · 1 filter
Chemical (in)homogeneity and atomic diffusion in the open cluster M67
F. Liu, M. Asplund, D. Yong +4
Context. The benchmark open cluster M67 is known to have solar metallicity and similar age as the Sun. It thus provides us a great opportunity to study the properties of solar twin…
The GALAH survey: An abundance, age, and kinematic inventory of the solar neighbourhood made with TGAS
S. Buder, K. Lind, M. K. Ness +31
The overlap between the spectroscopic Galactic Archaeology with HERMES (GALAH) survey & provides a high-dimensional chemodynamical space of unprecedented size. We present a…
Effective temperature determinations of late-type stars based on 3D non-LTE Balmer line formation
A. M. Amarsi, T. Nordlander, P. S. Barklem +3
Hydrogen Balmer lines are commonly used as spectroscopic effective temperature diagnostics of late-type stars. However, the absolute accuracy of classical methods that are based on…
Non-LTE line formation of Fe in late-type stars - III. 3D non-LTE analysis of metal-poor stars
A. M. Amarsi, K. Lind, M. Asplund +2
As one of the most important elements in astronomy, iron abundance determinations need to be as accurate as possible. We investigate the accuracy of spectroscopic iron abundance an…
The Hyades open cluster is chemically inhomogeneous
F. Liu, D. Yong, M. Asplund +2
We present a high-precision differential abundance analysis of 16 solar-type stars in the Hyades open cluster based on high resolution, high signal-to-noise ratio (S/N ~ 350 - 400)…
Granulation across the HR diagram
I. Ramirez, C. Allende Prieto, D. L. Lambert +2
We have obtained ultra-high quality spectra (R=180,000; S/N>300) with unprecedented wavelength coverage (4400 to 7400 A) for a number of stars covering most of the HR diagram in or…