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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, Volume 115, No. 5, Year 1998

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〉.

Alcock, Charles R.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Berkeley University of California, Berkeley
Allsman, Roberta A.
1. Australia, Canberra The Australian National University
Alves, David R.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Davis University of California, Davis
Axelrod, Timothy S.
1. Australia, Canberra Australian National University, Mount Stromlo Observatory
Becker, Andrew C.
1. United States, Berkeley University of California, Berkeley
2. United States, Seattle University of Washington
Bennett, David P.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Berkeley University of California, Berkeley
3. United States, Notre Dame University of Notre Dame
Cook, Kem H.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Berkeley University of California, Berkeley
Freeman, Kenneth C.
1. Australia, Canberra Australian National University, Mount Stromlo Observatory
Griest, Kim
1. United States, Berkeley University of California, Berkeley
2. United States, La Jolla University of California, San Diego
Lawson, Warrick A.
1. Australia, Canberra University of new South Wales at Australian Defence Force Academy
Lehner, Matthew J.
1. United States, Berkeley University of California, Berkeley
2. United States, La Jolla University of California, San Diego
Marshall, Stuart L.
1. United States, Livermore Lawrence Livermore National Laboratory
2. United States, Berkeley University of California, Berkeley
Minniti, Dante
1. United States, Berkeley University of California, Berkeley
Peterson, Bruce A.
1. Australia, Canberra Australian National University, Mount Stromlo Observatory
Pollard, Karen R.
1. South Africa, Cape Town South African Astronomical Observatory
2. New Zealand, Christchurch University of Canterbury
Pratt, Mark R.
1. United States, Berkeley University of California, Berkeley
2. United States, Seattle University of Washington
Quinn, Peter J.
1. Germany, Garching Bei Munchen European Southern Observatory
Rodgers, Alexander W.
1. Australia, Canberra Australian National University, Mount Stromlo Observatory
Sutherland, William J.
1. United Kingdom, Oxford University of Oxford
Tomaney, Austin B.
1. United States, Berkeley University of California, Berkeley
2. United States, Seattle University of Washington
Welch, Douglas L.
1. Canada, Hamilton Mcmaster University

AFRICAN RESEARCH NEXUS

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

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AFRICAN RESEARCH NEXUS

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

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African Research Nexus

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