Table 1
Stellar properties.
| CX Dra | π Aqr | ϕ Per | ||||||||
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|
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| Spec. type | B2.5Ve+F5III | B1Ve+[A-F] | B2[e]+sdO | |||||||
| M1 [M⊙] | 3.9 | 14.0 ± 1.0 | 9.3 ± 0.3 | |||||||
| M2 [M⊙] | 0.9 | 2.3 | 1.1 ± 0.1 | |||||||
| Porb [d] | 6.696 | 84.1 | 127 | |||||||
| D [pc] | 396 ± 35 | 240 ± 15 | 220 ± 9 | |||||||
| z [pc] | 149 | 169 | 43 | |||||||
| nH [cm-3] | 0.45 | 0.37 | 1.30 | |||||||
| RV [km s-1] | −2.1 ± 2.3 | −4.9 ± 0.1 | −4.0 ± 2.1 | |||||||
|
|
||||||||||
| v∗ [km s-1] | 21.1 ± 2.0 | 21.0 ± 1.1 | 29.8 ± 1.6 | |||||||
| PA [°] | 107.6 ± 1.2 | 82.3 ± 0.6 | 119.7 ± 0.2 | |||||||
| i [°] | −5.7 ± 63.1 | −13.5 ± 1.2 | −7.7 ± 30.3 | |||||||
|
|
||||||||||
| v∗ ,LSR [km s-1] | 25.5 ± 2.1 | 13.5 ± 1.0 | 13.1 ± 1.7 | |||||||
| PALSR [°] | 125.7 ± 1.0 | 31.5 ± 0.5 | 109.4 ± 0.6 | |||||||
| iLSR [°] | 32.4 ± 11.4 | 6.6 ± 3.7 | −4.4 ± 90 | |||||||
|
|
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| Ref. | 1 | 2, 3, 4 | 5 | |||||||
Notes. The space velocities were calculated following Johnson & Soderblom (1987) using the Hipparcos proper motion and parallax (van Leeuwen 2007) and radial velocities from the catalogue by de Bruijne & Eilers (2012). The solar motion adopted to convert heliocentric motion into LSR motion is (U,V,W) = (8.50 ± 0.29, 13.38 ± 0.43, 6.49 ± 0.26) km s-1 (Coşkunoǧlu et al. 2011).
Reference. (1) Berdyugin & Piirola (2002); (2) Zharikov et al. (2013); (3) Linnell et al. (1988); (4) Bjorkman et al. (2002); (5) Hummel & Štefl (2001).
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