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The Baryon Acoustic Oscillation (BAO) feature in the two-point correlation function (TPCF) of discrete tracers such as galaxies is an accurate standard ruler. The covariance matrix of the TPCF plays an important role in determining how the precision
Externí odkaz:
http://arxiv.org/abs/2407.04692
Baryon Acoustic Oscillations (BAOs) are crucial in cosmological analysis, providing a standard ruler, as well as constraints on dark energy. In General Relativity models, the BAO Linear Point - the midpoint between the dip and the peak in the correla
Externí odkaz:
http://arxiv.org/abs/2406.09379
Autor:
Lee, Jaemyoung Jason, Sako, Masao, Kessler, Richard, Malz, Alex I., Collaboration, The LSST Dark Energy Science
Differential Chromatic Refraction (DCR) is caused by the wavelength dependence of our atmosphere's refractive index, which shifts the apparent positions of stars and galaxies and distorts their shapes depending on their spectral energy distributions
Externí odkaz:
http://arxiv.org/abs/2405.04522
Akademický článek
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