2014A&A...567A..57K


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.13CEST07:42:00

2014A&A...567A..57K - Astronomy and Astrophysics, volume 567A, 57-57 (2014/7-1)

HD 161306 : a radiatively interacting Be binary ?

KOUBSKY P., KOTKOVA L., KRAUS M., YANG S., SLECHTA M., HARMANEC P., WOLF M., VOTRUBA V., KUBAT J., KUBATOVA B., NIEMCZURA E. and SKODA P.

Abstract (from CDS):

The spectrum of the Be star HD 161306 is shown to vary periodically with a period of ∼100-days. The radial velocity of the HeI 6678Å emission peak varying in antiphase to the radial velocity of the Hα emission wings component suggests that the star is a binary similar to {phi} Per, 59 Cyg, or FY CMa, i.e. a radiatively interacting Be binary - a rare case among Be stars. This type of object is also called a φ Per-type binary or Be + sdO binaries. The range of radial-velocity variations of the strong emission peak in the helium line observed in HD 161306 is about 180km/s, similar to what is observed for these systems. We therefore conclude that HD 161306 may represent another case of a Be star with a hot subdwarf companion.

Abstract Copyright:

Journal keyword(s): binaries: spectroscopic - stars: emission-line, Be - stars: individual: HD 161306

VizieR on-line data: <Available at CDS (J/A+A/567/A57): list.dat sp/*>

Simbad objects: 6

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Number of rows : 6

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 * phi Per Be* 01 43 39.6379209 +50 41 19.432832 3.10 4.02 4.06 3.90 3.88 B1.5V:e-shell 530 0
2 HD 41335 Be* 06 04 13.5022124890 -06 42 32.225555101 4.31 5.14 5.21 5.13 5.09 B3/5Vnne 272 0
3 HD 58978 Be* 07 26 59.4826767357 -23 05 09.683936209 4.51 5.45 5.56 7.05   B0.5IVe 211 0
4 * omi Pup Be* 07 48 05.1683937 -25 56 13.812276 3.42 4.43 4.49 4.37 4.37 B1IVe 197 0
5 HD 161306 Be* 17 45 07.7039304021 -09 48 54.447619214 8.35 8.78 8.30     B3/5Vnne 47 0
6 * f01 Cyg Be* 20 59 49.5516391039 +47 31 15.378902421 3.77 4.71 4.75 4.62 4.63 B1.5Vnne 465 0

    Equat.    Gal    SGal    Ecl

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2020.07.13-07:42:00

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