Accretion disc by Roche lobe overflow in the supergiant fast X-ray transient IGR J08408−4503

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Table 2.

List of SFXTs which might experience RLO in a fraction or along the entire NS orbit.

Source name	Sp. Type	Mass	Radius	P_orb	R_l, d
		(M_⊙)	(R_⊙)	(d)	(R_⊙)
IGR J08408−4503	O8.5 Ib-II(f)p	33 ⁽¹⁾	22 ⁽¹⁾	9.4536 ⁽²⁾	14.38
IGR J16418−4532	BN 0.5Ia ⁽³⁾	33 ⁽⁴⁾	33.8 ⁽⁴⁾	3.7389 ⁽⁵⁾	21.14
IGR J16479−4514	O9.5 Iab ⁽⁶⁾	27.8 ⁽¹⁾	22 ⁽¹⁾	3.3193 ^(7),(8)	18.12

Notes. The quantity R_l, d is the size of the Roche lobe of the donor star during the periastron passage. We assumed e = 0.63 for IGR J08408−4503 and e = 0 for the other SFXTs because of the lack of an orbital modulation of the X-ray flux (Sidoli et al. 2012; Drave et al. 2013).

References.⁽¹⁾ Martins et al. (2005); ⁽²⁾ Gamen et al. (2015); ⁽³⁾ Coleiro et al. (2013); ⁽⁴⁾ Searle et al. (2008); ⁽⁵⁾ Levine et al. (2011); ⁽⁶⁾ Nespoli et al. (2008); ⁽⁷⁾ Jain et al. (2009); ⁽⁸⁾ Romano et al. (2009b).

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