1998A&AS..130..245V


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.16CEST01:10:21

1998A&AS..130..245V - Astron. Astrophys., Suppl. Ser., 130, 245-250 (1998/June-1)

Four-colour photometry of eclipsing binaries. XXXIX. Light curves of the pre-main sequence triple system TY Coronae Australis.

VAZ L.P.R., ANDERSEN J., CASEY B.W., CLAUSEN J.V., MATHIEU R.D. and HEYER I.

Abstract (from CDS):

Complete uvby light curves of the detached Herbig Be eclipsing binary TY Coronae Australis are presented. A total of 1789 photometric measurements in each of the four colours were obtained in 1989 and in 1992-1994. A detailed analysis of the y light curve obtained in 1992-1993 is published separately Casey et al. (1997, AJ, in press, Paper III). The reflection nebula around the system contributes about 30% of the light in all four passbands. Here we present and discuss the non-eclipse-related photometric variability of the system. We suggest that these variations are the result of variable obscuration, possibly linked to dust shells physically associated to the system.

Abstract Copyright:

Journal keyword(s): binaries: eclipsing: - stars: individual: TY CrA - stars: pre-main sequence

VizieR on-line data: <Available at CDS (J/A+AS/130/245): table2.dat>

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 - 2019
#notes
1 NGC 6726 RNe 19 01 38 -36 53.5           ~ 33 0
2 HD 176386 Y*O 19 01 38.93200 -36 53 26.5615 7.28 7.33 7.21     B9V 110 0
3 V* TY CrA Ae* 19 01 40.8312189956 -36 52 33.801844387 10.03 9.92 9.39     B9e 266 0
4 HD 176423 * 19 01 50.4179614977 -36 39 52.759263540   9.34 9.05     A1III/IV 9 0
5 V* R CrA Ae* 19 01 53.6850227874 -36 57 08.145519972 12.781 12.651 11.917 11.242 10.412 B5IIIpe 439 1
6 HD 176497 * 19 02 06.7922425467 -36 21 41.858275153   8.52 8.35     A0IV 7 0
7 V* EK Cep Al* 21 41 21.5039950844 +69 41 34.108387051   7.95 7.89     A0V 197 0

    Equat.    Gal    SGal    Ecl

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2019.10.16-01:10:21

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