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Table A.2.

Details of the spectroscopic observations that contributed to this work.

Telescope/spectrograph Grating Wavelength range Typical R ( λ Δ λ ) $ (\frac{\lambda}{\Delta \lambda}) $ Stars observed Proposals
SDSS - 3800-9200 Å 1500-2500 J001245.60+143956.4 -
J002602.29-103751.9
J090559.60+084324.9
J112521.26-023433.4
J161004.27+063330.6

SOAR/Goodman 930 l/mm 3600-5200 Å ∼2000 J015958.50-180546.8
J040600.99-542751.7 SO2019A-005
J083417.21-652423.2 SO2019B-012
J090901.01-454637.0 SO2020B-010
J151626.39-265836.9 SO2021A-008
J183702.03-674141.1

INT/IDS EEV10/1200B 3800-5000 Å ∼2500 J045116.83+010426.6 i20an004
J134619.11-135026.7
J183245.52+141311.2
J212935.23+001332.3

Gemini-S/GMOS B600 3600-6800 Å ∼1000 J083013.72-100356.0 GS-2020A-Q-315

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