The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud

C. Alcock; R. A. Allsman; D. R. Alves; T. S. Axelrod; A. Becker; D. P. Bennett; K. H. Cook; K. C. Freeman; K. Griest; W. A. Lawson; M. J. Lehner; S. L. Marshall; D. Minniti; B. A. Peterson; Karen R. Pollard; M. R. Pratt; P. J. Quinn; A. W. Rodgers; W. Sutherland; A. Tomaney; D. L. Welch

doi:10.1086/300317

The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud

C. Alcock, R. A. Allsman, D. R. Alves, T. S. Axelrod, A. Becker, D. P. Bennett, K. H. Cook, K. C. Freeman, K. Griest, W. A. Lawson, M. J. Lehner, S. L. Marshall, D. Minniti, B. A. Peterson, Karen R. Pollard, M. R. Pratt, P. J. Quinn, A. W. Rodgers, W. Sutherland, A. TomaneyD. L. Welch

Exact Sciences School

Resultado de la investigación: Article

70 Citas (Scopus)

Resumen

We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V₀ = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)₀〉, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes M_V = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)₀〉.

Idioma original	English
Páginas (desde-hasta)	1921-1933
Número de páginas	13
Publicación	Astronomical Journal
Volumen	115
N.º	5
DOI	https://doi.org/10.1086/300317
Estado	Published - 1 ene 1998

Huella dactilar

variable stars

Magellanic clouds

stars

luminosity

color

project

curves

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Citar esto

Alcock, C., Allsman, R. A., Alves, D. R., Axelrod, T. S., Becker, A., Bennett, D. P., ... Welch, D. L. (1998). The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud. Astronomical Journal, 115(5), 1921-1933. https://doi.org/10.1086/300317

Alcock, C. ; Allsman, R. A. ; Alves, D. R. ; Axelrod, T. S. ; Becker, A. ; Bennett, D. P. ; Cook, K. H. ; Freeman, K. C. ; Griest, K. ; Lawson, W. A. ; Lehner, M. J. ; Marshall, S. L. ; Minniti, D. ; Peterson, B. A. ; Pollard, Karen R. ; Pratt, M. R. ; Quinn, P. J. ; Rodgers, A. W. ; Sutherland, W. ; Tomaney, A. ; Welch, D. L. / The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud. En: Astronomical Journal. 1998 ; Vol. 115, N.º 5. pp. 1921-1933.

@article{12494e8d99194e098fc3152c3b75c293,

title = "The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud",

abstract = "We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V0 = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes MV = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉.",

keywords = "Magellanic clouds, Stars: Population II, Stars: variables: other",

author = "C. Alcock and Allsman, {R. A.} and Alves, {D. R.} and Axelrod, {T. S.} and A. Becker and Bennett, {D. P.} and Cook, {K. H.} and Freeman, {K. C.} and K. Griest and Lawson, {W. A.} and Lehner, {M. J.} and Marshall, {S. L.} and D. Minniti and Peterson, {B. A.} and Pollard, {Karen R.} and Pratt, {M. R.} and Quinn, {P. J.} and Rodgers, {A. W.} and W. Sutherland and A. Tomaney and Welch, {D. L.}",

year = "1998",

month = "1",

day = "1",

doi = "10.1086/300317",

language = "English",

volume = "115",

pages = "1921--1933",

journal = "Astronomical Journal",

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Alcock, C, Allsman, RA, Alves, DR, Axelrod, TS, Becker, A, Bennett, DP, Cook, KH, Freeman, KC, Griest, K, Lawson, WA, Lehner, MJ, Marshall, SL, Minniti, D, Peterson, BA, Pollard, KR, Pratt, MR, Quinn, PJ, Rodgers, AW, Sutherland, W, Tomaney, A & Welch, DL 1998, 'The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud', Astronomical Journal, vol. 115, n.º 5, pp. 1921-1933. https://doi.org/10.1086/300317

The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud. / Alcock, C.; Allsman, R. A.; Alves, D. R.; Axelrod, T. S.; Becker, A.; Bennett, D. P.; Cook, K. H.; Freeman, K. C.; Griest, K.; Lawson, W. A.; Lehner, M. J.; Marshall, S. L.; Minniti, D.; Peterson, B. A.; Pollard, Karen R.; Pratt, M. R.; Quinn, P. J.; Rodgers, A. W.; Sutherland, W.; Tomaney, A.; Welch, D. L.

En: Astronomical Journal, Vol. 115, N.º 5, 01.01.1998, p. 1921-1933.

Resultado de la investigación: Article

TY - JOUR

T1 - The macho project LMC variable star inventory. VII. The discovery of RV Tauri stars and new type II cepheids in the Large Magellanic Cloud

AU - Alcock, C.

AU - Allsman, R. A.

AU - Alves, D. R.

AU - Axelrod, T. S.

AU - Becker, A.

AU - Bennett, D. P.

AU - Cook, K. H.

AU - Freeman, K. C.

AU - Griest, K.

AU - Lawson, W. A.

AU - Lehner, M. J.

AU - Marshall, S. L.

AU - Minniti, D.

AU - Peterson, B. A.

AU - Pollard, Karen R.

AU - Pratt, M. R.

AU - Quinn, P. J.

AU - Rodgers, A. W.

AU - Sutherland, W.

AU - Tomaney, A.

AU - Welch, D. L.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V0 = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes MV = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉.

AB - We report the discovery of RV Tauri stars in the Large Magellanic Cloud (LMC). In light- and color-curve behavior, the RV Tauri stars appear to be a direct extension of the type II Cepheids to longer periods. A single period-luminosity-color relationship is seen to describe both the type II Cepheids and the RV Tauri stars in the LMC. We derive the relation V0 = 17.89(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉, which is valid for type II Cepheids and RV Tauri stars in the period range 0.9 < log P < 1.75. Assuming a distance modulus to the LMC of 18.5, the relation in terms of the absolute luminosities becomes MV = -0.61(±0.20)-2.95(±0.12) log P + 5.49(±0.35)〈(V - R)0〉.

KW - Magellanic clouds

KW - Stars: Population II

KW - Stars: variables: other

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AN - SCOPUS:0042383958

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JO - Astronomical Journal