Matches in SemOpenAlex for { <https://semopenalex.org/work/W2526742515> ?p ?o ?g. }
- W2526742515 endingPage "2544" @default.
- W2526742515 startingPage "2517" @default.
- W2526742515 abstract "Peculiar velocity surveys present a very promising route to measuring the growth rate of large-scale structure and its scale dependence. However, individual peculiar velocity surveys suffer from large statistical errors due to the intrinsic scatter in the relations used to infer a galaxy's true distance. In this context we use a Fisher Matrix formalism to investigate the statistical benefits of combining multiple peculiar velocity surveys. We find that for all cases we consider there is a marked improvement on constraints on the linear growth rate $fsigma_{8}$. For example, the constraining power of only a few peculiar velocity measurements is such that the addition of the 2MASS Tully-Fisher survey (containing only $sim2,000$ galaxies) to the full redshift and peculiar velocity samples of the 6-degree Field Galaxy Survey (containing $sim 110,000$ redshifts and $sim 9,000$ velocities) can improve growth rate constraints by $sim20%$. Furthermore, the combination of the future TAIPAN and WALLABY+WNSHS surveys has the potential to reach a $sim3%$ error on $fsigma_{8}$, which will place tight limits on possible extensions to General Relativity. We then turn to look at potential systematics in growth rate measurements that can arise due to incorrect calibration of the peculiar velocity zero-point and from scale-dependent spatial and velocity bias. For next generation surveys, we find that neglecting velocity bias in particular has the potential to bias constraints on the growth rate by over $5sigma$, but that an offset in the zero-point has negligible impact on the velocity power spectrum." @default.
- W2526742515 created "2016-10-07" @default.
- W2526742515 creator A5049123839 @default.
- W2526742515 creator A5070066156 @default.
- W2526742515 creator A5084029871 @default.
- W2526742515 date "2016-09-28" @default.
- W2526742515 modified "2023-09-23" @default.
- W2526742515 title "Cosmological forecasts for combined and next-generation peculiar velocity surveys" @default.
- W2526742515 cites W1510529058 @default.
- W2526742515 cites W1540356931 @default.
- W2526742515 cites W1773473406 @default.
- W2526742515 cites W1859388247 @default.
- W2526742515 cites W1913081498 @default.
- W2526742515 cites W1938366638 @default.
- W2526742515 cites W1944901286 @default.
- W2526742515 cites W1970495075 @default.
- W2526742515 cites W1973175534 @default.
- W2526742515 cites W1975948265 @default.
- W2526742515 cites W1977188135 @default.
- W2526742515 cites W1978178159 @default.
- W2526742515 cites W1979503956 @default.
- W2526742515 cites W1980708053 @default.
- W2526742515 cites W1981766631 @default.
- W2526742515 cites W1983954444 @default.
- W2526742515 cites W1983968449 @default.
- W2526742515 cites W1987522415 @default.
- W2526742515 cites W1988123625 @default.
- W2526742515 cites W1995568970 @default.
- W2526742515 cites W2001290456 @default.
- W2526742515 cites W2006251234 @default.
- W2526742515 cites W2009350306 @default.
- W2526742515 cites W2011301426 @default.
- W2526742515 cites W2016537404 @default.
- W2526742515 cites W2018083552 @default.
- W2526742515 cites W2023068686 @default.
- W2526742515 cites W2023293058 @default.
- W2526742515 cites W2023900725 @default.
- W2526742515 cites W2026036361 @default.
- W2526742515 cites W2031659458 @default.
- W2526742515 cites W2038101582 @default.
- W2526742515 cites W2040444105 @default.
- W2526742515 cites W2040676684 @default.
- W2526742515 cites W2041561966 @default.
- W2526742515 cites W2042707894 @default.
- W2526742515 cites W2042905846 @default.
- W2526742515 cites W2043420039 @default.
- W2526742515 cites W2051694884 @default.
- W2526742515 cites W2052394465 @default.
- W2526742515 cites W2055502763 @default.
- W2526742515 cites W2061923933 @default.
- W2526742515 cites W2065889919 @default.
- W2526742515 cites W2067535194 @default.
- W2526742515 cites W2072182744 @default.
- W2526742515 cites W2073163146 @default.
- W2526742515 cites W2073554859 @default.
- W2526742515 cites W2079260504 @default.
- W2526742515 cites W2081198904 @default.
- W2526742515 cites W2087114528 @default.
- W2526742515 cites W2093632493 @default.
- W2526742515 cites W2097016324 @default.
- W2526742515 cites W2102084015 @default.
- W2526742515 cites W2102336972 @default.
- W2526742515 cites W2103305323 @default.
- W2526742515 cites W2114661386 @default.
- W2526742515 cites W2114744410 @default.
- W2526742515 cites W2124002579 @default.
- W2526742515 cites W2126320623 @default.
- W2526742515 cites W2128130302 @default.
- W2526742515 cites W2128759530 @default.
- W2526742515 cites W2130563989 @default.
- W2526742515 cites W2131988425 @default.
- W2526742515 cites W2142220522 @default.
- W2526742515 cites W2145211869 @default.
- W2526742515 cites W2156305595 @default.
- W2526742515 cites W2156426159 @default.
- W2526742515 cites W2157671444 @default.
- W2526742515 cites W2178290338 @default.
- W2526742515 cites W2211491388 @default.
- W2526742515 cites W2248105255 @default.
- W2526742515 cites W2276171767 @default.
- W2526742515 cites W2345663868 @default.
- W2526742515 cites W2952455394 @default.
- W2526742515 cites W2964076761 @default.
- W2526742515 cites W3098627924 @default.
- W2526742515 cites W3099548339 @default.
- W2526742515 cites W3100519378 @default.
- W2526742515 cites W3101299375 @default.
- W2526742515 cites W3102474852 @default.
- W2526742515 cites W3102678232 @default.
- W2526742515 cites W3104943378 @default.
- W2526742515 cites W3105800782 @default.
- W2526742515 cites W3106314966 @default.
- W2526742515 cites W3106436086 @default.
- W2526742515 cites W3106530008 @default.
- W2526742515 cites W3121769860 @default.
- W2526742515 cites W3122149089 @default.
- W2526742515 cites W3122585830 @default.
- W2526742515 cites W3124888198 @default.