143 citations · 1.1k across the 26 of their papers we have counts for
48 papers
The impact of carbon and oxygen abundances on the metal-poor initial mass function
Piyush Sharda, Anish M. Amarsi, Kathryn Grasha +5
Star formation models predict that the metal-poor initial mass function (IMF) can be substantially different from that observed in the metal-rich Milky Way. This changeover occurs…
Emu: A Case Study for TDI-like Imaging for Infrared Observation from Space
Joice Mathew, James Gilbert, Robert Sharp +14
A wide-field zenith-looking telescope operating in a mode similar to Time-Delay-Integration (TDI) or drift scan imaging can perform an infrared sky survey without active pointing c…
Chemical Properties of the Local Disk and Halo. II. Abundances of 3745 M dwarfs and Subdwarfs from Improved Model Fitting of Low-Resolution Spectra
Neda Hejazi, Sebastien Lepine, Thomas Nordlander
We present a model-fit pipeline to determine the stellar parameters of M-type dwarfs, which is an improvement upon our previous work described in Hejazi et al. 2020. We apply this…
Atomic diffusion and mixing in old stars VII. Abundances of Mg, Ti, and Fe in M30
Alvin Gavel, Pieter Gruyters, Ulrike Heiter +4
We attempt to constrain the efficiency of additional transport or mixing processes that reduce the effect of atomic diffusion in stellar atmospheres. We apply spectral synthesis me…
Non-detection of Li in Spite plateau stars with ESPRESSO
E. X. Wang, T. Nordlander, M. Asplund +3
The detection of Li in Spite plateau stars contradicts the standard Big Bang nucleosynthesis prediction, known as the second cosmological lithium problem. We measure the isotop…
High resolution spectroscopic follow-up of the most metal-poor candidates from SkyMapper DR1.1
D. Yong, G. S. Da Costa, M. S. Bessell +13
We present chemical abundances for 21 elements (from Li to Eu) in 150 metal-poor Galactic stars spanning 4.1 [Fe/H] 2.1. The targets were selected from the SkyMapper…