High-resolution Spectroscopic Metallicities of Milky Way Cepheid Standards and Their Impact on the Leavitt Law and the Hubble Constant

Milky Way Cepheid variables with accurate Hubble Space Telescope photometry have been established as standards for primary calibration of the cosmic distance ladder to achieve a percent-level determination of the Hubble constant ( H _0 ). These 75 Cepheid standards are the fundamental sample for inv...

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Principais autores:	Anupam Bhardwaj, Adam G. Riess, Giovanni Catanzaro, Erasmo Trentin, Vincenzo Ripepi, Marina Rejkuba, Marcella Marconi, Chow-Choong Ngeow, Lucas M. Macri, Martino Romaniello, Roberto Molinaro, Harinder P. Singh, Shashi M. Kanbur
格式:	Artigo
語言:	Inglês
出版:	IOP Publishing 2023-01-01
叢編:	The Astrophysical Journal Letters
主題:	Distance indicators Stellar pulsations Hubble constant Cepheid variable stars
在線閱讀:	https://doi.org/10.3847/2041-8213/acf710
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