The Local Ultraviolet to Infrared Treasury I. Survey Overview of the Broadband Imaging
The Local Ultraviolet to Infrared Treasury (LUVIT) is a Hubble Space Telescope program that combines newly acquired data in the near ultraviolet (NUV), optical, and near infrared (NIR) with archival optical and NIR imaging to produce multiband panchromatic resolved stellar catalogs for 23 pointings...
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Zusammenfassung: | The Local Ultraviolet to Infrared Treasury (LUVIT) is a Hubble Space
Telescope program that combines newly acquired data in the near ultraviolet
(NUV), optical, and near infrared (NIR) with archival optical and NIR imaging
to produce multiband panchromatic resolved stellar catalogs for 23 pointings in
22 low-mass, star-forming galaxies ranging in distance from the outskirts of
the Local Group to ~3.8 Mpc. We describe the survey design, detail the LUVIT
broadband filter observations and the archival datasets included in the LUVIT
reductions, and summarize the simultaneous multiband data reduction steps. The
spatial distributions and color-magnitude diagrams (CMDs) from the resulting
stellar catalogs are presented for each target, from the NUV to the NIR. We
demonstrate in which regions of the CMDs stars with NUV and optical, optical
and NIR, and NUV through NIR detections reside. For each target, we use the
results from artificial star tests to measure representative completeness,
bias, and total photometric uncertainty as a function of magnitude in each
broadband filter. We also assess which LUVIT targets have significant spatial
variation in the fraction of stars recovered at a given magnitude. The
panchromatic LUVIT stellar catalogs will provide a rich legacy dataset for a
host of resolved stellar population studies. |
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DOI: | 10.48550/arxiv.2410.20454 |