Carbon stars as standard candles: I. The luminosity function of carbon stars in the Magellanic Clouds

@article{Ripoche2020CarbonSA,
  title={Carbon stars as standard candles: I. The luminosity function of carbon stars in the Magellanic Clouds},
  author={P. Ripoche and J. Heyl and J. Parada and H. Richer},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020},
  volume={495},
  pages={2858-2866}
}
  • P. Ripoche, J. Heyl, +1 author H. Richer
  • Published 2020
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • Our goal in this paper is to derive a carbon-star luminosity function that will eventually be used to determine distances to galaxies at $50$-$60$ Mpc and hence yield a value of the Hubble constant. Cool N-type carbon stars exhibit redder near-infrared colours than oxygen-rich stars. Using Two Micron All Sky Survey near-infrared photometry and the Gaia Data Release 2, we identify carbon stars in the Magellanic Clouds (MC) and the Milky Way (MW). Carbon stars in the MC appear as a distinct… CONTINUE READING
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