Fig. 7 from The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXII. The Discovery of Cepheids in NGC 1326A

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The Hubble Space Telescope Key Project on the Extragalactic Distance Scale. XXII. The Discovery of Cepheids in NGC 1326A

Authors: Charles F. Prosser, Robert C. Kennicutt, Jr., Fabio Bresolin, Abhijit Saha, Shoko Sakai, Wendy L. Freedman, Jeremy R. Mould, Laura Ferrarese, Holland C. Ford, Brad K. Gibson, John A. Graham, John G. Hoessel, John P. Huchra, Shaun M. Hughes, Garth D. Illingworth, Daniel D. Kelson, Lucas Macri, Barry F. Madore, Nancy A. Silbermann, and Peter B. Stetson

Prosser et al. 1999 The Astrophysical Journal 525 80.

Provider: AAS Journals

Caption: Fig. 7.

PL relations in V (top) and I (bottom) for Cepheids in NGC 1326A, based on the DoPHOT photometry. Cepheids included in the fitting are shown as filled circles, while open circles denote Cepheids that were rejected from the fit, as described in § 6.1. The solid line shows the fitted PL relation, while the dashed lines show the 2 σ intrinsic width of the PL relation in the LMC.

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