Investigating episodic mass loss in evolved massive stars - II. Physical properties of red supergiants at subsolar metallicity

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Volume 689 (September 2024)

A&A, 689 (2024) A46

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Table 3

Physical parameters of our RSG sample (extract).

ID	Flag	T_eff,TiO (K)	E(B − V) (mag)	log(Z/Z_⊙) (dex)	υ_rad (km s⁻¹)	log(L/L_⊙) (dex)	R/R_⊙(dex)
NGC55-40	−	$3480_{- 50}^{+ 50}$ $\[3480_{-50}^{+50}\]$	${0.4}_{- 0.1}^{+ 0.0}$ $\[0.4_{-0.1}^{+0.0}\]$	−0.50	140	5.34 ± 0.05	$1285_{- 105}^{+ 115}$ $\[1285_{-105}^{+115}\]$
NGC55-75	−	$4050_{- 70}^{+ 175}$ $\[4050_{-70}^{+175}\]$	${0.6}_{- 0.05}^{+ 0.1}$ $\[0.6_{-0.1}^{+0.1}\]$	−0 50	230	5.23 ± 0.05	$840_{- 90}^{+ 80}$ $\[840_{-90}^{+80}\]$
NGC55-87	−	$3510_{- 50}^{+ 50}$ $\[3510_{-50}^{+50}\]$	${0.35}_{- 0.05}^{+ 0.0}$ $\[0.35_{-0.05}^{+0.0}\]$	−0 50	210	5.09 ± 0.07	$945_{- 100}^{+ 110}$ $\[945_{-100}^{+110}\]$
NGC55-93	2	$3620_{- 50}^{+ 50}$ $\[3620_{-50}^{+50}\]$	${0.5}_{- 0.05}^{+ 0.05}$ $\[0.5_{-0.05}^{+0.05}\]$	−0 50	210	5.15 ± 0.02	$950_{- 45}^{+ 50}$ $\[950_{-45}^{+50}\]$
NGC55-135	0	$3540_{- 50}^{+ 50}$ $\[3540_{-50}^{+50}\]$	${0.25}_{- 0.0}^{+ 0.05}$ $\[0.25_{-0.0}^{+0.05}\]$	−0 50	80	5.12 ± 0.06	$960_{- 90}^{+ 100}$ $\[960_{-90}^{+100}\]$
NGC55-146	−	$3560_{- 50}^{+ 50}$ $\[3560_{-50}^{+50}\]$	${0.2}_{- 0.05}^{+ 0.05}$ $\[0.2_{-0.05}^{+0.05}\]$	−0 50	230	5.09 ± 0.02	$920_{- 45}^{+ 50}$ $\[920_{-45}^{+50}\]$
NGC55-147	−	$3530_{- 60}^{+ 100}$ $\[3530_{-60}^{+100}\]$	${0.35}_{- 0.35}^{+ 0.55}$ $\[0.35_{-0.35}^{+0.55}\]$	−0 50	110	−	−
NGC55-149	−	$3670_{- 50}^{+ 80}$ $\[3670_{-50}^{+80}\]$	${0.6}_{- 0.1}^{+ 0.15}$ $\[0.6_{-0.1}^{+0.15}\]$	−0 50	60	4.95 ± 0.02	$735_{- 55}^{+ 45}$ $\[735_{-55}^{+45}\]$
NGC55-152	−	$3590_{- 50}^{+ 50}$ $\[3590_{-50}^{+50}\]$	${0.35}_{- 0.05}^{+ 0.05}$ $\[0.35_{-0.05}^{+0.05}\]$	−0 50	90	5.08 ± 0.03	$895_{- 55}^{+ 60}$ $\[895_{-55}^{+60}\]$
NGC55-165	−	$4425_{- 50}^{+ 75}$ $\[4425_{-50}^{+75}\]$	${0.3}_{- 0.0}^{+ 0.05}$ $\[0.3_{-0.0}^{+0.05}\]$	−0 50	200	5.18 ± 0.05	$660_{- 55}^{+ 55}$ $\[660_{-55}^{+55}\]$
NGC55-174	−	$3610_{- 50}^{+ 50}$ $\[3610_{-50}^{+50}\]$	${0.35}_{- 0.05}^{+ 0.05}$ $\[0.35_{-0.05}^{+0.05}\]$	−0 50	170	5.05 ± 0.04	$855_{- 60}^{+ 65}$ $\[855_{-60}^{+65}\]$
NGC55-194	−	$3690_{- 50}^{+ 50}$ $\[3690_{-50}^{+50}\]$	${0.25}_{- 0.15}^{+ 0.1}$ $\[0.25_{-0.15}^{+0.1}\]$	−0 50	130	4.95 ± 0.03	$730_{- 45}^{+ 45}$ $\[730_{-45}^{+45}\]$
NGC55-200	−	$3490_{- 50}^{+ 50}$ $\[3490_{-50}^{+50}\]$	${0.3}_{- 0.05}^{+ 0.1}$ $\[0.3_{-0.05}^{+0.1}\]$	−0 50	180	5.04 ± 0.03	$910_{- 55}^{+ 50}$ $\[910_{-55}^{+50}\]$
NGC55-202	−	$3830_{- 80}^{+ 110}$ $\[3830_{-80}^{+110}\]$	${0.1}_{- 0.1}^{+ 0.1}$ $\[0.1_{-0.1}^{+0.1}\]$	−0 50	70	4.86 ± 0.05	$610_{- 65}^{+ 65}$ $\[610_{-65}^{+65}\]$
NGC55-216	−	$3730_{- 50}^{+ 50}$ $\[3730_{-50}^{+50}\]$	${0.3}_{- 0.1}^{+ 0.05}$ $\[0.3_{-0.1}^{+0.05}\]$	−0 50	150	5.05 ± 0.08	$805_{- 90}^{+ 100}$ $\[805_{-90}^{+100}\]$
⋮	⋮	⋮	⋮	⋮	⋮	⋮

Notes. The full table is available in machine-readable and Virtual Observatory (VO) forms at the CDS. Flags: (0) red and blue TiO bands show slightly discrepant temperatures; (1) fitted by eye; (2) fits not satisfactory after visual inspection; (3) blue excess flux (wavelengths below λ ≤ 6000 Å were discarded); (4) low signal-to-noise ratio skews the uncertainties to extreme values.

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