Science with the Ultraviolet Explorer (UVEX). (arXiv:2111.15608v2 [astro-ph.GA] UPDATED)

Science with the Ultraviolet Explorer (UVEX). (arXiv:2111.15608v2 [astro-ph.GA] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Kulkarni_S/0/1/0/all/0/1">S. R. Kulkarni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Harrison_F/0/1/0/all/0/1">Fiona A. Harrison</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Grefenstette_B/0/1/0/all/0/1">Brian W. Grefenstette</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Earnshaw_H/0/1/0/all/0/1">Hannah P. Earnshaw</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Andreoni_I/0/1/0/all/0/1">Igor Andreoni</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Berg_D/0/1/0/all/0/1">Danielle A. Berg</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bloom_J/0/1/0/all/0/1">Joshua S. Bloom</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cenko_S/0/1/0/all/0/1">S. Bradley Cenko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chornock_R/0/1/0/all/0/1">Ryan Chornock</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Christiansen_J/0/1/0/all/0/1">Jessie L. Christiansen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Coughlin_M/0/1/0/all/0/1">Michael W. Coughlin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Criswell_A/0/1/0/all/0/1">Alexander Wuollet Criswell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Darvish_B/0/1/0/all/0/1">Behnam Darvish</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Das_K/0/1/0/all/0/1">Kaustav K. Das</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+De_K/0/1/0/all/0/1">Kishalay De</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dessart_L/0/1/0/all/0/1">Luc Dessart</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dixon_D/0/1/0/all/0/1">Don Dixon</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dorsman_B/0/1/0/all/0/1">Bas Dorsman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+El_Badry_K/0/1/0/all/0/1">Kareem El-Badry</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Evans_C/0/1/0/all/0/1">Christopher Evans</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ford_K/0/1/0/all/0/1">K. E. Saavik Ford</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fremling_C/0/1/0/all/0/1">Christoffer Fremling</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gansicke_B/0/1/0/all/0/1">Boris T. Gansicke</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gezari_S/0/1/0/all/0/1">Suvi Gezari</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gotberg_Y/0/1/0/all/0/1">Y. Gotberg</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Green_G/0/1/0/all/0/1">Gregory M. Green</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Graham_M/0/1/0/all/0/1">Matthew J. Graham</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Heida_M/0/1/0/all/0/1">Marianne Heida</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ho_A/0/1/0/all/0/1">Anna Y. Q. Ho</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Jaodand_A/0/1/0/all/0/1">Amruta D. Jaodand</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Johns_Krull_C/0/1/0/all/0/1">Christopher M. Johns-Krull</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kasliwal_M/0/1/0/all/0/1">Mansi M. Kasliwal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lazzarini_M/0/1/0/all/0/1">Margaret Lazzarini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lu_W/0/1/0/all/0/1">Wenbin Lu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Margutti_R/0/1/0/all/0/1">Raffaella Margutti</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Martin_D/0/1/0/all/0/1">D. Christopher Martin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Masters_D/0/1/0/all/0/1">Daniel Charles Masters</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+McKernan_B/0/1/0/all/0/1">Barry McKernan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nissanke_S/0/1/0/all/0/1">Samaya M. Nissanke</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Parazin_B/0/1/0/all/0/1">B. Parazin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Perley_D/0/1/0/all/0/1">Daniel A. Perley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Phinney_E/0/1/0/all/0/1">E. Sterl Phinney</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Piro_A/0/1/0/all/0/1">Anthony L. Piro</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Raaijmakers_G/0/1/0/all/0/1">G. Raaijmakers</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rodriguez_A/0/1/0/all/0/1">Antonio C. Rodriguez</a>, et al. (8 additional authors not shown)

UVEX is a proposed medium class Explorer mission designed to provide crucial
missing capabilities that will address objectives central to a broad range of
modern astrophysics. The UVEX design has two co-aligned wide-field imagers
operating in the FUV and NUV and a powerful broad band medium resolution
spectrometer. In its two-year baseline mission, UVEX will perform a
multi-cadence synoptic all-sky survey 50/100 times deeper than GALEX in the
near/far ultraviolet, cadenced surveys of the LMC and SMC, rapid target of
opportunity followup, as well as spectroscopic followup of samples of stars and
galaxies. The science program is built around three pillars. First, UVEX will
explore the low-mass, low-metallicity galaxy frontier through imaging and
spectroscopic surveys that will probe key aspects of the evolution of galaxies
by understanding how star formation and stellar evolution at low metallicities
affect the growth and evolution of low-metallicity, low-mass galaxies in the
local universe. Such galaxies contain half the mass in the local universe, and
are analogs for the first galaxies, but observed at distances that make them
accessible to detailed study. Second, UVEX will explore the dynamic universe
through time-domain surveys and prompt spectroscopic followup capability will
probe the environments, energetics, and emission processes in the early
aftermaths of gravitational wave-discovered compact object mergers, discover
hot, fast UV transients, and diagnose the early stages of stellar explosions.
Finally, UVEX will become a key community resource by leaving a large all-sky
legacy data set, enabling a wide range of scientific studies and filling a gap
in the new generation of wide-field, sensitive optical and infrared surveys
provided by the Rubin, Euclid, and Roman observatories. This paper discusses
the scientific potential of UVEX, and the broad scientific program.

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