J/A+AS/130/245 Light curves of the PMS system TY CrA (Vaz+ 1998)
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., Heyer I.
<Astron. Astrophys. Suppl. Ser. 128, 251 (1998)>
=1998A&AS..130..245V 1998A&AS..130..245V (SIMBAD/NED BibCode)
ADC_Keywords: Binaries, eclipsing ; Photometry, uvby
Keywords: binaries: eclipsing - stars: individual: TY CrA -
stars: pre-main sequence
Description:
Complete uvby light curves of the detached Herbig Be eclipsing binary
TY Coronae Australis are presented. A total of 1787 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). 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.
Objects:
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RA (2000) DE Designation(s)
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19 01 40.7 -36 52 33 TY CrA
19 01 50.3 -36 39 52 HD 176423
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 62 1788 Magnitude differences TY CrA - HD 176423 in
1989, 1992, 1993 and 1994 (instrumental system)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 4 I4 yr Year Year of observations
6- 18 F13.5 d HJD Heliocentric Julian Day
20- 24 F5.3 mag Dymag y magnitude difference
26- 30 F5.3 mag Db-y b-y colour index difference
32- 37 F6.3 mag Dm1 m1 Stroemgren index difference
39- 44 F6.3 mag Dc1 c1 Stroemgren index difference
46- 50 F5.3 mag Dbmag b magnitude difference
52- 56 F5.3 mag Dvmag v magnitude difference
58- 62 F5.3 mag Dumag u magnitude difference
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Acknowledgements: Luiz Paulo R. Vaz
References:
Gylenkerne et al., Paper I. 1975A&A....42..303G 1975A&A....42..303G
Jorgensen & Gylenkerne, Paper II. (RZ Cha) 1975A&A....44..343J 1975A&A....44..343J
Clausen et al., Paper IIIa. (zeta Phe) 1976A&AS...23..261C 1976A&AS...23..261C
Clausen et al., Paper IIIb. (zeta Phe) 1976A&A....46..205C 1976A&A....46..205C
Clausen & Gronbech, Paper IV. (UX Men) 1976A&A....48...49C 1976A&A....48...49C
Gronbech, Paper V. (NO Pup) 1976A&A....50...79G 1976A&A....50...79G
Clausen et al., Paper VI. (V1647 Sgr) 1977A&A....58..121C 1977A&A....58..121C
Gronbech et al., Paper VII. (SZ Cen) 1977A&A....55..401G 1977A&A....55..401G
Clausen & Gronbech, Paper VIII. (CV Vel) 1977A&A....58..131C 1977A&A....58..131C
Jorgensen & Gronbech. Paper IXa. (AI Hya) 1978A&AS...33..103J 1978A&AS...33..103J
Jorgensen & Gronbech. Paper IXb. (AI Hya) 1978A&A....66..377J 1978A&A....66..377J
Clausen & Nordstrom, Paper Xa. (chi2 Hya) 1978A&A....67...15C 1978A&A....67...15C
Clausen & Nordstrom, Paper Xb. (chi2 Hya) 1978A&AS...31..307C 1978A&AS...31..307C
Clausen & Nordstrom, Paper XIa. (RS CHa) 1980A&A....83..339C 1980A&A....83..339C
Clausen & Nordstrom, Paper XIb. (RS Cha) 1978A&AS...33...87C 1978A&AS...33...87C
Jorgensen, Paper XIIb. (TV Cet) 1979A&A....72..356J 1979A&A....72..356J
Andersen et al., Paper XIII. (TY Pyx) 1981A&A...101....7A 1981A&A...101....7A
Andersen et al., Paper XIIIb. (TY Pyx) 1981A&AS...43..141A 1981A&AS...43..141A
Andersen & Clausen, Paper XIVb. (QX Car) 1982A&AS...49..571A 1982A&AS...49..571A
Clausen et al., Paper XVb. (V Pup) 1983A&AS...52..323C 1983A&AS...52..323C
Clausen & Nordstrom, Paper XVI. (VV Pyx) 1983A&AS...54..149C 1983A&AS...54..149C
Andersen et al., Paper XVII. (DM Vir) 1983A&AS...54..161A 1983A&AS...54..161A
Reipurth et al., Paper XVIII. (PV Pup) 1983A&AS...54..301R 1983A&AS...54..301R
Vaz et al., Paper XIX. (KM Hyd) 1983A&AS...54..475V 1983A&AS...54..475V
Andersen et al., Paper XX. (V760 Sco) 1985A&AS...61..353A 1985A&AS...61..353A
Gimenez et al., Paper XXIa. (V346 Cen) 1986A&A...160..310G 1986A&A...160..310G
Gimenez et al., Paper XXIb. (V346 Cen) 1986A&AS...66...45G 1986A&AS...66...45G
Gimenez & Clausen, Paper XXIIa. (GL Car) 1986A&A...161..275G 1986A&A...161..275G
Gimenez et al., Paper XXIIb. (GJ Car) 1985A&AS...62..179G 1985A&AS...62..179G
Andersen et al., Paper XXIII. (GZ CMa) 1985A&AS...59..349A 1985A&AS...59..349A
Gimenez et al., Paper XXIV. (QX Car, xi Phe, NO Pup) 1986A&A...159..157G 1986A&A...159..157G
Clausen et al., Paper XXV. (V451 Oph) 1987A&AS...68..141C 1987A&AS...68..141C
Helt, Paper XXVIa. (RY Aqr) 1987A&A...172..155H 1987A&A...172..155H
Helt, Paper XXVIb. (RY Aqr) 1987A&AS...68..187H 1987A&AS...68..187H
Gronbech, Paper XXVIIa. (AO Vel) 1987A&AS...68..317G 1987A&AS...68..317G
Clausen et al., Paper XXVIIb. (AO Vel) 1995, Cat. J/A+AS/109/425
Gronbech et al., Paper XXVIII. (BW Aqu) 1987A&AS...68..323G 1987A&AS...68..323G
Gronbech et al., Paper XXIX. (TZ Men) 1987A&AS...68..331G 1987A&AS...68..331G
Vaz et al., Paper XXXa. (LZ Cen) 1995, Cat. J/A+AS/112/123
Vaz et al., Paper XXXb. (LZ Cen) 1995A&A...301..693V 1995A&A...301..693V
Clausen et al., Paper XXXI. (EM Car) 1989A&AS...77..257C 1989A&AS...77..257C
Clausen et al., Paper XXXII. (V1031 Ori) 1989A&AS...81..197C 1989A&AS...81..197C
Clausen et al., Paper XXXIII. (TZ For) 1991A&AS...88..535C 1991A&AS...88..535C
Gimenez et al., Paper XXXIV. (CW Cep) 1990A&AS...86..259G 1990A&AS...86..259G
Clausen et al., Paper XXXV. (GG Lup) 1993, Cat. J/A/AS/101/563
Vaz et al., Paper XXXVI (V3903 Sgr) 1998, Cat. J/A+AS/128/251
Clausen et al., Paper XXXVII. (V539 Ara) 1996, Cat. J/A+AS/115/315
Vaz et al., Paper XXXVIII (V906 Sco) 1997, Cat. J/A+AS/125/471
Casey B.W., Mathieu R.D., Vaz L.P.R., Andersen J., Suntzeff N.B., 1998,
AJ, in press
(End) Patricia Bauer [CDS] 08-Dec-1997