The Subaru FMOS galaxy redshift survey (FastSound). IV. New constraint on gravity theory from redshift space distortions atz∼ 1.4
نویسندگان
چکیده
منابع مشابه
The Subaru FMOS Galaxy Redshift Survey ( FastSound ) . III . The mass - metallicity
We present the results from a large near-infrared spectroscopic survey with Subaru/FMOS (FastSound) consisting of ∼ 4,000 galaxies at z ∼ 1.4 with significant Hα detection. We measure the gas-phase metallicity from the [N II]λ6583/Hα emission line ratio of the composite spectra in various stellar mass and star-formation rate bins. The resulting mass-metallicity relation generally agrees with pr...
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We have investigated the redshift space distortions in the optically selected Durham/UKST Galaxy Redshift Survey using the 2-point galaxy correlation function perpendicular and parallel to the observer's line of sight, ξ(σ, π). We present results for the real space 2-point correlation function, ξ(r), by inverting the optimally estimated projected correlation function, which is obtained by integ...
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We propose the first large-scale cosmological redshift survey of the z > 1 Universe using the newly commissioned FMOS wide-field spectrograph in order to test for predicted gravitational departures from General Relativity in the early Universe. Spectroscopic redshifts will be secured using the Hα emission line for 20,000 galaxies with 0.7 < z < 1.6 over 30 deg by the target selection method tha...
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The radial component of the peculiar velocities of galaxies cause displacements in their positions in redshift space. We study the effect of the peculiar velocities on the linear redshift space two point correlation function. Our analysis takes into account the radial nature of the redshift space distortions and it highlights the limitations of the plane parallel approximation. We consider the ...
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Comparing measurements of redshift-space distortions (RSDs) with geometrical observations of the expansion of the Universe offers tremendous potential for testing general relativity on very large scales. The basic linear theory of RSDs in the distant-observer limit has been known for 25 years and the effect has been conclusively observed in numerous galaxy surveys. The next generation of galaxy...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 2016
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/psw029