A 500 pc volume-limited sample of hot subluminous stars - I. Space density, scale height, and population properties

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Volume 686 (June 2024)

A&A, 686 (2024) A25

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Table 3

Catalogue classification.

Spectroscopic class	Number	Fraction
Hot subdwarfs (Table A.1)	305	77%

sdB	178	${58.4}_{- 2.8}^{+ 2.9} %$ ${58.4_{ - 2.8}^{ + 2.9{\rm{\% }}}}$
sdOB	65	${21.3}_{- 2.5}^{+ 2.2} %$ ${21.3_{ - 2.5}^{ + 2.2{\rm{\% }}}}$
sdO	32	${10.5}_{- 2.0}^{+ 1.5} %$ ${10.5_{ - 2.0}^{ + 1.5{\rm{\% }}}}$
He-sdB/OB/O	30	${9.8}_{- 2.0}^{+ 1.5} %$ ${9.8_{ - 2.0}^{ + 1.5{\rm{\% }}}}$

sdO/B+MS (Table A.2)	48	${15.7}_{- 2.3}^{+ 1.9} %$ ${15.7_{ - 2.3}^{ + 1.9{\rm{\% }}}}$

Other constituents (Table A.3)	92	23%

CV	41	${44.6}_{- 5.2}^{+ 5.0} %$ ${44.6_{ - 5.2}^{ + 5.0{\rm{\% }}}}$
WD	11	${12.0}_{- 4.2}^{+ 2.6} %$ ${12.0_{ - 4.2}^{ + 2.6{\rm{\% }}}{\rm{\% }}}$
WD+MS	3	${3.3}_{- 3.0}^{+ 1.0} %$ ${3.3_{ - 3.0}^{ + 1.0}{\rm{\% }}}$
sdA	4	${4.3}_{- 3.2}^{+ 1.3} %$ ${4.3_{ - 3.2}^{ + 1.3{\rm{\% }}}}$
MS/BHB	26	${28.3}_{- 5.1}^{+ 4.2} %$ ${28.3_{ - 5.1}^{ + 4.2{\rm{\% }}}}$
Removed	7	${7.6}_{- 3.7}^{+ 1.9} %$ ${7.6_{ - 3.7}^{ + 1.9{\rm{\% }}}}$

Overall total	397	100%

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