Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...301l..45c&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 301, Feb. 15, 1986, p. L45-L48.
Astronomy and Astrophysics
Astrophysics
37
Astrometry, Big Bang Cosmology, Cepheid Variables, Galactic Structure, Distance, Light Curve, M Stars, Stellar Luminosity, Stellar Magnitude, Stellar Spectrophotometry, Supergiant Stars
Scientific paper
The authors report the first definite detection of Cepheid variables in M101, a galaxy of fundamental importance to the extragalactic distance scale. The Cepheids are the most distant ever found, and their discovery illustrates the ready feasibility of sampling through modern digital means these most primary of standard candles over a wide volume of the universe.
Aaronson Marc
Cook Kem H.
Illingworth Garth
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