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Title: Reconstruction with velocities
ABSTRACT Reconstruction is becoming a crucial procedure of galaxy clustering analysis for future spectroscopic redshift surveys to obtain subper cent level measurement of the baryon acoustic oscillation scale. Most reconstruction algorithms rely on an estimation of the displacement field from the observed galaxy distribution. However, the displacement reconstruction degrades near the survey boundary due to incomplete data and the boundary effects extend to $${\sim}100\, \mathrm{Mpc}/h$$ within the interior of the survey volume. We study the possibility of using radial velocities measured from the cosmic microwave background observation through the kinematic Sunyaev–Zeldovich effect to improve performance near the boundary. We find that the boundary effect can be reduced to $${\sim}30-40\, \mathrm{Mpc}/h$$ with the velocity information from Simons Observatory. This is especially helpful for dense low redshift surveys where the volume is relatively small and a large fraction of total volume is affected by the boundary.  more » « less
Award ID(s):
1713791
PAR ID:
10148310
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
Monthly Notices of the Royal Astronomical Society
Volume:
494
Issue:
3
ISSN:
0035-8711
Page Range / eLocation ID:
4244 to 4254
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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