1996A&AS..118..453L


Query : 1996A&AS..118..453L

1996A&AS..118..453L - Astron. Astrophys., Suppl. Ser., 118, 453-459 (1996/September-0)

BL Eridani: An unstable W Ursae Majoris system with spotted components.

LIU Q., SOONTHORNTHUM B., YANG Y., GU S., NIPARUGS S., ANIWAT SOOKSAWAT M.L., WANG B. and NAKSATA M.

Abstract (from CDS):

New complete BV light curves of BL Eri are presented. Light-curve variability and asymmetry are seen in both B and V bands, and the observed times of light minimum indicate period changes. The light curves have been analyzed by using the light-curve-synthesis method. Our photometric solution reveals that BL Eri is a contact binary with a common convective envelope. An examination of the available photometric and spectroscopic data indicates that the light-curve variability may be due to changes of the component radii and the light-curve asymmetry may be consistent with starspot activity on one or both components.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close binaries: individual: BL Eri

Simbad objects: 2

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Number of rows : 2
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 V* BL Eri EB* 04 11 48.2079199440 -11 47 26.689526772   12.135 11.335 11.443 10.747 B5 45 0
2 V* W UMa SB* 09 43 45.4704536952 +55 57 09.061630668   8.54 7.75     G2Vn 686 0

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