Near-Infrared Observations of BD+44 493 with IGRINS-2

arXiv:2607.13201 · astro-ph.SR · Submitted 2026-07-14 · Read on arXiv

Vinicius M. Placco, William D. Vacca

astro-ph.SR

Submitted: 2026-07-14

Comments: 15 pages, 4 figures, accepted for publication on AJ

Code: https://github.com/andycasey/smhr

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Abundance — 68× in this paper · explained in 1 episode
• Metallicity — 8× in this paper · explained in 3 episodes
• Aperture — 2× in this paper · explained in 1 episode
• Association of Universities for Research in Astronomy — 1× in this paper
• Calibration — 1× in this paper · explained in 7 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Core — 1× in this paper · explained in 2 episodes

Sources

• The most metal poor stars
• HE0144-4657: A Carbon-Enhanced Ultra Metal-Poor Star ([Fe/H] ~ -4.1) from the Helmi Stream Disrupted Dwarf Galaxy

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