WDS 16413-4846 SNA 1 Ca,Cb : NOTES
 
 
discov_num notes refcode
MLO 8 AB: A is a spectroscopic binary.
SNA 1 Aa,Ab: The system includes the tightly-bound Aa1,Aa2 pair [primary
O3V((f*))-3.5V((f+)), secondary O5.5-6V] with P=2.67d, i=49 +/- 5deg,
e=0. The tertary Ab (spectral type O6.5-7V) orbits the inner pair with
period 3000-5500d. Sbe2013
Aa,Ab: Component masses are estimated at 62.2 +/- 10.0 Msun for Aa1,
39.5 +/- 6.3 for Aa2, and 33 +/- 12 for Ab. Sna2013
Aa,Ab: This is a hierarchical triple system known from spectroscopy
(Mahy et al. 2012, A&A 540, A97). The outer pair (Aa,Ab) was first
resolved in the course of the PIONIER survey (Sana et al. 2013). We Sna2013
clearly detect the known 1.6" AB pair, but other components of this
system are outside our field of investigation. Sna2014
DUN 206 AC: C has variable velocity.
The C component was observed and appeared to be single. Msn1998a
SNA 1 Ca,Cb: PIONIER marginally resolved the Aa,Ab pair at 0.95mas. It
probably corresponds to the 183d SB2 reported by Gamen et al. (2008,
RevMexAA 33, 54), assuming pi=0.5mas and M = 20Msun (Hohle et al.
2010, AN 331, 349). Sna2014
 
 
REFERENCES
 
 
refcode metd author reference
Msn1998a Sc j Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., 1998AJ....115..821M
Msn1998a ten Brummelaar, T.A., & McAlister, H.A.
Msn1998a AJ 115, 821, 1998
SBe2013 Kv j Sanchez-Bermudez, J., Schodel, R., Alberdi, A., Barba, R.H., Hummel, C.A., 2013A&A...554L...4S
SBe2013 Maiz Apellaniz, J., & Pott, J.-U.
SBe2013 A&A 554, L4, 2013
Sna2013 Kv j Sana, H., LeBouquin, J.-B., Mahy, L., Absil, O., DeBecker, M., & Gosset 2013A&A...553A.131S
Sna2013 A&A 553, A131, 2013
Sna2014 Kv j Sana, H., LeBouquin, J.-B., Lacour, S., Berger, J.-P., Duvert, G., Gauchet, L., 2014ApJS..215...15S
Sna2014 +A Norris, B., Olofsson, J., Pickel, D., Zins, G., Absil, O., de Koter, A.,
Sna2014 Kratter, K., Schnurr, O., & Zinnecker, H.
Sna2014 ApJS 215, 15, 2014
Sna2014 (NACO companions in Table 6 assumed physical if quoted probability of spurious
Sna2014 detection <10%, optical if >90%, otherwise indeterminate)
 
 
DISCOVERER
 
 
idgroup discov author
1 DUN Dunlop, J.
3 HJ Herschel, J.F.W.
52 I Innes, R.T.A.
56 I MNRAS 57, 533, 1897 (data also in I__1897b,
56 I I__1897c)
142 MLO Walker, G.J.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
16413-4846 SNA 1 Ca,Cb 2012 1 255 0.0 7.00 7.20 O6.5V NV K 164119.44-484547.5

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