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- W1944111504 endingPage "738" @default.
- W1944111504 startingPage "724" @default.
- W1944111504 abstract "Using Hubble Space Telescope Advanced Camera for Surveys (HST/ACS) and Wide Field Camera 3 (WFC3) observations from the Panchromatic Hubble Andromeda Treasury (PHAT), we present new period–luminosity (P-L) relations for Cepheid variables in M31. Cepheids from several ground-based studies are identified in the PHAT photometry to derive new P-L and Wesenheit P-L relations in the near infrared and visual filters. We derive a distance modulus to M31 of 24.51 ± 0.08 in the IR bands and 24.32 ± 0.09 in the visual bands, including the first P-L relations in the F475W and F814W filters for M31. Our derived visual and IR distance moduli disagree at slightly more than a 1σ level. Differences in the P-L relations between ground-based and HST observations are investigated for a subset of Cepheids. We find a significant discrepancy between ground-based and HST P-L relations with the same Cepheids, suggesting adverse effects from photometric contamination in ground-based Cepheid observations. Additionally, a statistically significant radial trend in the P-L relation is found which does not appear to be explained by metallicity." @default.
- W1944111504 created "2016-06-24" @default.
- W1944111504 creator A5027159284 @default.
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- W1944111504 creator A5045010033 @default.
- W1944111504 creator A5052619589 @default.
- W1944111504 creator A5083249765 @default.
- W1944111504 date "2015-05-29" @default.
- W1944111504 modified "2023-10-17" @default.
- W1944111504 title "Panchromatic Hubble Andromeda Treasury XIII: The Cepheid period-luminosity relation in M31" @default.
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- W1944111504 doi "https://doi.org/10.1093/mnras/stv880" @default.