Not all nitrogen-rich field stars originate from globular clusters

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Volume 708 (April 2026)

A&A, 708 (2026) A346

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Table D.1

Asteroseismic properties of the enriched stars in our sample, with adopted metallicity and effective temperature inputs, as well as nitrogen abundances from APOGEE DR17.¹

KIC	Evolutionary state	Age [Gyr]	Mass [M_⊙]	[Fe/H]	T_eff [K]	[N/Fe]	APOGEE ID
1726211	CHeB	${3.4}_{- 1.0}^{+ 0.9}$ $Mathematical equation: $3.4_{ - 1.0}^{ + 0.9}$$	${1.28}_{- 0.10}^{0.17}$ $Mathematical equation: $1.28_{ - 0.10}^{0.17}$$	−0.60 ± 0.05	4973 ± 50	0.50 ± 0.02	2M19300107+3717340
2165615	CHeB	${1.8}_{- 0.3}^{+ 0.5}$ $Mathematical equation: $1.8_{ - 0.3}^{ + 0.5}$$	${1.56}_{- 0.13}^{+ 0.11}$ $Mathematical equation: $1.56_{ - 0.13}^{ + 0.11}$$	−0.74 ± 0.05	5000 ± 50	0.41 ± 0.03	2M19302512+3730446
3120676	CHeB	${1.2}_{- 0.4}^{+ 0.3}$ $Mathematical equation: $1.2_{ - 0.4}^{ + 0.3}$$	${1.90}_{- 0.19}^{+ 0.38}$ $Mathematical equation: $1.90_{ - 0.19}^{ + 0.38}$$	−0.55 ± 0.05	5053 ± 50	0.52 ± 0.02	2M19293022+3816119
3850744	CHeB	${0.8}_{- 0.1}^{+ 0.2}$ $Mathematical equation: $0.8_{ - 0.1}^{ + 0.2}$$	${2.22}_{- 0.20}^{+ 0.17}$ $Mathematical equation: $2.22_{ - 0.20}^{ + 0.17}$$	−0.59 ± 0.05	5157 ± 50	0.48 ± 0.03	2M19261974+3859443
3946701	RGB	${1.4}_{- 0.4}^{+ 0.7}$ $Mathematical equation: $1.4_{ - 0.4}^{ + 0.7}$$	${1.69}_{- 0.19}^{+ 0.22}$ $Mathematical equation: $1.69_{ - 0.19}^{ + 0.22}$$	−0.56 ± 0.05	4838 ± 50	0.66 ± 0.03	2M19170711+3904391
4920997	CHeB	${18.1}_{- 1.9}^{+ 1.1}$ $Mathematical equation: $18.1_{ - 1.9}^{ + 1.1}$$	${0.77}_{- 0.01}^{+ 0.02}$ $Mathematical equation: $0.77_{ - 0.01}^{ + 0.02}$$	−0.60 ± 0.05	4920 ± 50	0.95 ± 0.03	2M19233926+4003386
5184073	RGB	${12.2}_{- 3.1}^{+ 4.1}$ $Mathematical equation: $12.2_{ - 3.1}^{ + 4.1}$$	${0.79}_{- 0.06}^{+ 0.08}$ $Mathematical equation: $0.79_{ - 0.06}^{ + 0.08}$$	−1.46 ± 0.05	4880 ± 50	1.02 ± 0.05	2M19233833+4018284
8110538	CHeB	${5.6}_{- 1.3}^{+ 1.9}$ $Mathematical equation: $5.6_{ - 1.3}^{ + 1.9}$$	${1.10}_{- 0.10}^{+ 0.10}$ $Mathematical equation: $1.10_{ - 0.10}^{ + 0.10}$$	−0.59 ± 0.05	4975 ± 50	0.80 ± 0.03	2M19442885+4354544
8350894	RGB	${6.4}_{- 1.8}^{+ 2.2}$ $Mathematical equation: $6.4_{ - 1.8}^{ + 2.2}$$	${0.98}_{- 0.08}^{+ 0.10}$ $Mathematical equation: $0.98_{ - 0.08}^{ + 0.10}$$	−1.03 ± 0.05	4907 ± 50	0.78 ± 0.03	2M19004420+4421082
8620063	CHeB	${1.1}_{- 0.3}^{+ 0.1}$ $Mathematical equation: $1.1_{ - 0.3}^{ + 0.1}$$	${1.89}_{- 0.11}^{+ 0.23}$ $Mathematical equation: $1.89_{ - 0.11}^{ + 0.23}$$	−0.52 ± 0.05	5149 ± 50	0.44 ± 0.03	2M19202332+4442142
10398120	RGB	${8.9}_{- 3.6}^{+ 5.4}$ $Mathematical equation: $8.9_{ - 3.6}^{ + 5.4}$$	${0.87}_{- 0.11}^{+ 0.16}$ $Mathematical equation: $0.87_{ - 0.11}^{ + 0.16}$$	−0.99 ± 0.05	4775 ± 50	0.41 ± 0.03	2M19160273+4735390
10796857	RGB	${1.9}_{- 0.4}^{+ - 0.1}$ $Mathematical equation: $1.9_{ - 0.4}^{ + - 0.1}$$	${1.51}_{- - 0.03}^{+ 0.12}$ $Mathematical equation: $1.51_{ - - 0.03}^{ + 0.12}$$	−0.73 ± 0.05	5040 ± 90	0.48 ± 0.03	2M19264357+4807193
11443139	CHeB	${1.9}_{- 0.8}^{+ 1.1}$ $Mathematical equation: $1.9_{ - 0.8}^{ + 1.1}$$	${1.55}_{- 0.23}^{+ 0.36}$ $Mathematical equation: $1.55_{ - 0.23}^{ + 0.36}$$	−0.72 ± 0.05	5023 ± 50	0.64 ± 0.03	2M18584348+4923267

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