WDS 23404+4420 HJ 1898 AB (Kap And) : NOTES
 
 
discov_num notes refcode
HJ 1898 kap And = 19 And.
CSN 1 Aa,Ab: Carson et al. (2012) discovered a "super Jupiter" orbiting kap
And. Spectral types are B9IV and L2-L8, masses 2.4-2.5 Msun and 12.8
+2.0/-1.0 Mjup, assuming a system age 30 +20/-10 Myr (Marois et al.
2010 Nature 468, 1080). Csn2013
Aa,Ab: Hinkley et al. (2013) derive a spectral type L1 +/- 1, Teff =
2040 +/- 60K, mass 50 +16/-13 Mjup, and age 220 +/- 100 Myr for the Ab
companion of the B9IV star kap And. The primary has a mass of 2.8
+0.1/-0.2 Msun, Teff 11361 +/- 66K, radius 2.29 +/- 0.06 Rsun, age
the same as that of Ab. Results are based on spectroscopy obtained
using a high-contrast imaging platform. They also conclude that the B
and C stars in this system are not comoving with the A component. Hnk2013
Aa,Ab: Bonnefoy et al. (2014) derive spectral types B9IVn and M9-L3:,
plus log luminosities 1.83 +/- 0.04and -3.76 +/- 0.06. The mass of the
primary is estimated at 2.6 +/- 0.2 Msun; the secondary is 0.013
+0.022/-0.001 Msun for a "hot-start" evolutionary model, >0.011 Msun
for a "warm-start" model. Bnf2014
 
 
REFERENCES
 
 
refcode metd author reference
Bnf2014 Ao j Bonnefoy, M., Currie, T., Marleau, G.-D., Schlieder, J.E., Wisniewski, J., 2014A&A..562A..111B
Bnf2014 +A Carson, J., Cover, K.R., Henning, T., Biller, B., Hinz, P., Klahr, H.,
Bnf2014 Marsh Boyer, A.N., et al.
Bnf2014 A&A 562, A111, 2014
Csn2013 Ac j Carson, J., Thalmann, C., Janson, M., Kozakis, T., Bonnefoy, M., Biller, B., 2013ApJ...763L..32C
Csn2013 +Co Schlieder, J., Currie, T. McElwain, M., Goto, M., Henning, T., Brandner,W., et al.
Csn2013 +A ApJ 763, L32, 2013
Csn2013 +Ci
Hnk2013 - Hinkley, S., Pueyo, L., Faherty, J.K., Oppenheimer, B.R., Mamajek, E.E., 2013ApJ...779..153H
Hnk2013 Kraus, A.L., Rice, E.L., Ireland, M.J., David, T., Hillenbrand, L.A., Vasisht, G.,
Hnk2013 Cady, E. et al.
Hnk2013 ApJ 779, 153, 2013
 
 
DISCOVERER
 
 
idgroup discov author
1 HJ Herschel, J.F.W.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
23404+4420 HJ 1898 AB 1998 8 202 47.8 4.14 11.30 B9IVa N D 234024.44+442002.3
23404+4420 HJ 1898 AB 2002 10 202 47.5 4.14 11.30 B9IVa N D 234024.44+442002.3

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