2010A&A...520A.103K


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST11:06:32

2010A&A...520A.103K - Astronomy and Astrophysics, volume 520, A103-103 (2010/9-2)

Spectroscopic analysis of the B/Be visual binary HR 1847.

KUBAT J., SAAD S.M., KAWKA A., NOUH M.I., ILIEV L., UYTTERHOEVEN K., KORCAKOVA D., HADRAVA P., SKODA P., VOTRUBA V., DOVCIAK M. and SLECHTA M.

Abstract (from CDS):

We studied both components of a slightly overlooked visual binary HR1847 spectroscopically to determine its basic physical and orbital parameters. Basic stellar parameters were determined by comparing synthetic spectra to the observed echelle spectra, which cover both the optical and near-IR regions. New observations of this system used the Ondrejov and Rozhen 2-m telescopes and their coude spectrographs. Radial velocities from individual spectra were measured and then analysed with the code FOTEL to determine orbital parameters. The spectroscopic orbit of HR1847A is presented for the first time. It is a single-lined spectroscopic binary with a B-type primary, a period of 719.79 days, and a highly eccentric orbit with e=0.7. We confirmed that HR1847B is a Be star. Its Hα emission significantly decreased from 2003 to 2008. Both components have a spectral type B7-8 and luminosity class IV-V.

Abstract Copyright:

Journal keyword(s): binaries: general - stars: emission-line, Be - stars: individual: HR1847

Simbad objects: 12

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Number of rows : 12

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 * 11 Cam Be* 05 06 08.4523644964 +58 58 20.548606420 4.31 5.00 5.08     B3Ve 199 0
2 C 0523+160 Cl* 05 26 06 +16 42.0     3.0     ~ 27 0
3 HD 36408 ** 05 32 14.14223 +17 03 29.2492           B7III 83 0
4 HD 36408B Be* 05 32 14.5662363313 +17 03 21.795246903 6.337 6.527 6.490 6.410 6.437 B7-8IV-V 11 0
5 1RXS J053214.9+170319 X 05 32 14.90 +17 03 19.0           ~ 1 0
6 * bet Mon ** 06 28 49.06971 -07 01 59.0101 2.85 3.59 3.74 3.75 3.91 B4Ve+B2Vn(e)+B3V:nne 218 0
7 * bet01 Mon Be* 06 28 49.06971 -07 01 59.0101 3.87 4.50 4.60     B4Veshell 239 0
8 * bet Mon B * 06 28 49.4266 -07 02 03.835   4.81 5.00     B2Vn(e) 63 0
9 * bet Mon C Em* 06 28 49.6169 -07 02 04.719   5.21 5.32     B3V:nne 60 0
10 * kap Dra Be* 12 33 28.9420577565 +69 47 17.633094524 3.18 3.75 3.89 3.84 3.92 B6IIIe 347 0
11 * bet Cep bC* 21 28 39.5968513 +70 33 38.574681 2.05 3.01 3.23 3.33 3.55 B0.5IIIs 677 0
12 * omi And Be* 23 01 55.2645930 +42 19 33.533383 3.00 3.53 3.62 3.61 3.69 B6IV/V_sh 409 0

    Equat.    Gal    SGal    Ecl

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2019.10.17-11:06:32

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