Pulsations, eruptions, and evolution of four yellow hypergiants

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Table 1.

Adopted interstellar extinctions, reddening, and the extinction laws R for the four objects used in this paper.

	HR 8752	ρ Cas	HR 5171A	HD 179821
A_v	3.08 ⁽¹⁾	1.44 ⁽²⁾	4.32 ⁽³⁾	2.24 ⁽³⁾
R	4.4 ⁽¹⁾	3.2 ⁽³⁾	3.6 ⁽⁵⁾	3.2 ⁽³⁾
E(B − V)	0.70 ⁽¹⁾	0.45 ⁽⁴⁾	1.2 ⁽³⁾	0.7 ⁽⁶⁾
E(U − B)	0.67	0.44
E(V − R)	0.66	0.40
E(V − I)	1.31	0.73
E(R − I)	0.65	0.34

Notes. The reddening values, dependant on the extinction law R, in the Johnson UBVRI were retrieved from the tables of Steenman & Thé (1989).

References.⁽¹⁾Nieuwenhuijzen et al. (2012); ⁽²⁾Joshi & Rautela (1978); ⁽³⁾this paper, E(B − V) = 0.4 for ISE and 0.8 for CSE; ⁽⁴⁾Lobel et al. (2003); ⁽⁵⁾van Genderen et al. (2015); ⁽⁶⁾Arkhipova et al. (2009).

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