Testing massive star evolution, star formation history, and feedback at low metallicity - Spectroscopic analysis of OB stars in the SMC Wing

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Table 1.

Ionizing flux, mechanical luminosity, momentum, and accumulated mechanical energy contributions by the OB stars, WO binary, and previous SNe, compared to the values observed in the SGSl.

	Q	L_mec	p	E_mec
	(s⁻¹)	(erg s⁻¹)	(g cm s⁻¹)	(erg)
OB	8 × 10⁴⁹	3 × 10³⁵	5 × 10⁴¹	6 × 10⁴⁹
WO	1.5 × 10⁵⁰	7 × 10³⁷	1.4 × 10⁴³	2 × 10⁵¹
SN			5 × 10⁴⁵	10⁵²
Total	2 × 10⁵⁰	7 × 10³⁷	5 × 10⁴⁵	1.2 × 10⁵²
Observation	∼10⁵⁰ ^(a)	<5 × 10³² ^(b)	6 × 10⁴⁵ ^(c)	6 × 10⁵¹ ^(c)

Notes.

^(a)

From Hα luminosity.

^(b)

From X-ray luminosity.

^(c)

From the expansion of the H I shell.

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