Science with the SPHEREx All-Sky Galaxy Survey

Speaker: Richard Feder (UC Berkeley) In Person and zoom 

Zoom info: https://stanford.zoom.us/my/sihanyuan?pwd=QnpsUHZWWGJ2ekVYWmZVL3BmM0gzZz09

SPHEREx is NASA’s next MIDEX mission and is in the final stages of preparation, with an imminent launch set for late February 2025. Over the course of the nominal two-year survey, SPHEREx will obtain low-resolution NIR spectra spanning 0.75-5 um for O(10^9) galaxies and stars, unlocking a host of science cases that includes constraints on local primordial non-Gaussianity, redshift tomography of diffuse EBL fluctuations, and more general studies of galaxy evolution. In this talk I will describe recent preparations to simulate and ingest the oncoming deluge of survey data from SPHEREx, going from raw spectro-images to galaxy redshift catalogs. As time permits I will highlight some of the challenges and opportunities for SPHEREx galaxy clustering measurements on ultra-large scales.