2012ApJ...760L...3R

Query : 2012ApJ...760L...3R

2012ApJ...760L...3R - Astrophys. J., 760, L3 (2012/November-3)

The hot R Coronae Borealis star DY Centauri is a binary.

RAO N.K., LAMBERT D.L., GARCIA-HERNANDEZ D.A., JEFFERY C.S., WOOLF V.M. and McARTHUR B.

Abstract (from CDS):

The remarkable hot R Coronae Borealis (RCB) star DY Cen is revealed to be the first and only binary system to be found among the RCB stars and their likely relatives, including the extreme helium stars and the hydrogen-deficient carbon stars. Radial velocity determinations from 1982 to 2010 have shown that DY Cen is a single-lined spectroscopic binary in an eccentric orbit with a period of 39.67 days. It is also one of the hottest and most H-rich member of the class of RCB stars. The system may have evolved from a common envelope to its current form.

Abstract Copyright: ∼

Journal keyword(s): binaries: general - stars: chemically peculiar - stars: evolution - stars: individual: DY Cen - stars: variables: general - white dwarfs

Simbad objects: 7

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Number of rows : 7
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 HD 30353 sg* 04 48 53.3476200024 +43 16 32.086716960 8.05 8.22 7.76     A5Iap 149 0
2 CPD-20 1123 HS* 06 06 13.3951675848 -20 21 07.275405420   11.75 11.80 11.84 11.90 sdB3VHe15 37 0
3 V* DY Cen RC* 13 25 34.0847063328 -54 14 43.129581792     12.00     C-Hd/B5-6Ie 105 0
4 V* V2205 Oph Pu* 16 28 35.3724415104 -09 19 31.849139568 9.79 10.56 10.5     B 102 0
5 V* V4334 Sgr CV* 17 52 32.69352 -17 41 08.0160           F2Ia 390 0
6 * ups Sgr Be* 19 21 43.6225957281 -15 57 18.062726294 4.18 4.71 4.61 4.34 4.21 B2Vp_sh 312 0
7 Hen 1-5 pA* 20 11 56.0595568008 +20 20 04.420944132 11.41 10.66 9.45     G8/K0Iae 523 0

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