2018A&A...617A..79P

Query : 2018A&A...617A..79P

2018A&A...617A..79P - Astronomy and Astrophysics, volume 617A, 79-79 (2018/9-1)

Time-dependent spectral-feature variations of stars displaying the B[e] phenomenon. IV. V2028 Cygni: modelling of Hα bisector variability.

POLSTER J., KORCAKOVA D. and MANSET N.

Abstract (from CDS):

We present an alternative model of V2028 Cyg, a B[e] star of FS CMa type. The star V2028 Cyg is atypical among FS CMa stars due to its composite spectra of B4III and K2II-Ib type. Our modelling of the temporal variability of the Hα line bisectors indicates as the most probable model a geometrically and optically thick disc, which is surrounded by a dusty ring seen almost edge-on. This provides a possibility that the K-spectral component is formed in the disc.

Abstract Copyright: © ESO 2018

Journal keyword(s): stars: emission-line, Be - stars: mass-loss - accretion, accretion disks - binaries: spectroscopic - stars: individual: MWC 623

Simbad objects: 14

goto Full paper

goto View the references in ADS

Number of rows : 14
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 EM* GGA 2 LP* 00 50 05.9718580056 +64 45 35.046643752   12.406 11.545     Beq 25 0
2 HD 281192 Em* 03 45 14.7163837704 +29 45 03.178318824   9.974 9.80     B8:e 24 0
3 V* CI Cam HXB 04 19 42.1355996520 +55 59 57.706599192 12.13 12.41 11.77 10.79 9.99 B0/2I[e] 253 0
4 HD 45677 Be* 06 28 17.4219710352 -13 03 11.128860972 7.86 8.52 8.50 8.11 8.01 B2IV/V[e] 330 0
5 HD 50138 Ae* 06 51 33.3989823840 -06 57 59.450772852 6.28 6.68 6.67     A1Ib/II 220 0
6 [KW97] 34-26 Em* 07 10 43.8683682264 +06 00 07.935249600   12.212 12.077 12.109   A0-A1II 11 0
7 CD-31 5070 Em* 07 47 29.2996390560 -31 50 40.319276064 12.33 12.41 11.51 11.23   B0-B1II/III/V 15 0
8 V* FX Vel EB* 08 32 35.7635904504 -37 59 01.482839808   10.234 10.090 10.041   A3IIIe 27 0
9 HD 85567 Be* 09 50 28.5375988920 -60 58 02.954048268 8.16 8.67 8.57     B5Vne 96 0
10 V* AG Dra Sy* 16 01 41.0120557968 +66 48 10.135056672 11.50 11.06 9.74 8.52   K3IIIep 501 0
11 BD+23 3183 Em* 17 47 03.2744329776 +23 19 45.354097632   10.257 10.191 10.117   A1-A2II/III 17 0
12 EM* MWC 623 ** 19 56 31.5417133728 +31 06 20.124534348   11.98 10.92     K2Ib/II+B4III[e] 73 0
13 EM* GGR 71 Em* 22 26 38.7333592272 +61 13 31.568432916   13.254 12.411 12.140   B[e] 30 0
14 V* Z And Sy* 23 33 39.9553225728 +48 49 05.974867308 8.86 9.35 8.00     M2III+B1eq 525 0

To bookmark this query, right click on this link: simbad:objects in 2018A&A...617A..79P and select 'bookmark this link' or equivalent in the popup menu