Kavli Affiliate: Claudio Ricci
| First 5 Authors: Juna A. Kollmeier, Juna A. Kollmeier, , ,
| Summary:
The Sloan Digital Sky Survey-V (SDSS-V) is pioneering panoptic spectroscopy:
it is the first all-sky, multi-epoch, optical-to-infrared spectroscopic survey.
SDSS-V is mapping the sky with multi-object spectroscopy (MOS) at telescopes in
both hemispheres (the 2.5-m Sloan Foundation Telescope at Apache Point
Observatory and the 100-inch du Pont Telescope at Las Campanas Observatory),
where 500 zonal robotic fiber positioners feed light from a wide-field focal
plane to an optical (R$sim 2000$, 500 fibers) and a near-infrared (R$sim
22,000$, 300 fibers) spectrograph. In addition to these MOS capabilities, the
survey is pioneering ultra wide-field ($sim$ 4000~deg$^2$) integral field
spectroscopy enabled by a new dedicated facility (LVM-I) at Las Campanas
Observatory, where an integral field spectrograph (IFS) with 1801
lenslet-coupled fibers arranged in a 0.5 degree diameter hexagon feeds multiple
R$sim$4000 optical spectrographs that cover 3600-9800 angstroms. SDSS-V’s
hardware and multi-year survey strategy are designed to decode the
chemo-dynamical history of the Milky Way Galaxy and tackle fundamental open
issues in stellar physics in its Milky Way Mapper program, trace the growth
physics of supermassive black holes in its Black Hole Mapper program, and
understand the self-regulation mechanisms and the chemical enrichment of
galactic ecosystems at the energy-injection scale in its Local Volume Mapper
program. The survey is well-timed to multiply the scientific output from major
all-sky space missions. The SDSS-V MOS programs began robotic operations in
2021; IFS observations began in 2023 with the completion of the LVM-I facility.
SDSS-V builds upon decades of heritage of SDSS’s pioneering advances in data
analysis, collaboration spirit, infrastructure, and product deliverables in
astronomy.
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