Legacy ExtraGalactic UV Survey (LEGUS) with The Hubble Space Telescope.   I. Survey Description

D. Calzetti (1); J.C. Lee (2); E. Sabbi (2); A. Adamo (3); L.J. Smith; (4); J.E. Andrews (5); L. Ubeda (2); S.N. Bright (2); D. Thilker (6); A.; Aloisi (2); T.M. Brown (2); R. Chandar (7); C. Christian (2); M. Cignoni (2),; G.C. Clayton (8); R. da Silva (9); S.E. de Mink (10); C. Dobbs (11); B.G.; Elmegreen (12); D.M. Elmegreen (13); A.S. Evans (14); M. Fumagalli (15); J.S.; Gallagher (16); D.A. Gouliermis (17); E.K. Grebel (17); A. Herrero (18); D.A.; Hunter (19); K.E. Johnson (14); R.C. Kennicutt (20); H. Kim (21); M.R.; Krumholz (9); D. Lennon (22); K. Levay (2); C. Martin (23); P. Nair (24); A.; Nota (4); G. Oestlin (3); A. Pellerin (25); J. Prieto (26); M.W. Regan (2),; J.E. Ryon (16); D. Schaerer (27); D. Schiminovich (28); M. Tosi (29); S.D.; Van Dyk (30); R. Walterbos (31); B.C. Whitmore (2); A. Wofford (32). ((1); UMass; (2) STScI; (3) U.Stockholm; (4) ESA/STScI; (5) U.Arizona; (6) JHU; (7); U.Toledo; (8) Louisiana State U.; (9) UC Santa Cruz; (10) Amsterdam U.; (11); U.Exeter; (12) IBM; (13) Vassar Coll.; (14) U.Virginia; (15) Durham U.; (16); U.Wisconsin; (17) U.Heidelberg; (18) IAC; (19) Lowell Obs.; (20); IoA-U.Cambridge; (21) KASI; (22) ESAC; (23) Caltech; (24) U.Alabama; (25); SUNY-Geneseo; (26) Princeton U.; (27) U.Geneva; (28) Columbia U.; (29); INAF-Bologna; (30) IPAC/Caltech; (31) NMSU; (32) IAP)

arXiv:1410.7456·astro-ph.GA·June 23, 2015

Legacy ExtraGalactic UV Survey (LEGUS) with The Hubble Space Telescope. I. Survey Description

D. Calzetti (1), J.C. Lee (2), E. Sabbi (2), A. Adamo (3), L.J. Smith, (4), J.E. Andrews (5), L. Ubeda (2), S.N. Bright (2), D. Thilker (6), A., Aloisi (2), T.M. Brown (2), R. Chandar (7), C. Christian (2), M. Cignoni (2),, G.C. Clayton (8), R. da Silva (9), S.E. de Mink (10)

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TL;DR

LEGUS is a comprehensive Hubble Space Telescope survey studying star formation in nearby galaxies across multiple wavelengths, providing detailed data on stars and clusters to inform galaxy evolution theories.

Contribution

This paper details the survey design, observational strategy, and initial science results of LEGUS, establishing a foundation for future high-redshift galaxy studies.

Findings

01

Accurate recent star formation histories derived from resolved stars.

02

Extinction-corrected ages and masses of star clusters obtained.

03

Extensive catalogs of massive stars and clusters created.

Abstract

The Legacy ExtraGalactic UV Survey (LEGUS) is a Cycle 21 Treasury program on the Hubble Space Telescope, aimed at the investigation of star formation and its relation with galactic environment in nearby galaxies, from the scales of individual stars to those of ~kpc-size clustered structures. Five-band imaging, from the near-ultraviolet to the I-band, with the Wide Field Camera 3, plus parallel optical imaging with the Advanced Camera for Surveys, is being collected for selected pointings of 50 galaxies within the local 12 Mpc. The filters used for the observations with the Wide Field Camera 3 are: F275W(2,704 A), F336W(3,355 A), F438W(4,325 A), F555W(5,308 A), and F814W(8,024 A); the parallel observations with the Advanced Camera for Surveys use the filters: F435W(4,328 A), F606W(5,921 A), and F814W(8,057 A). The multi-band images are yielding accurate recent (<~50 Myr) star formation…

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