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

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…

Astrophysics of Galaxies · Physics 2015-06-23 D. Calzetti , J. C. Lee , E. Sabbi , A. Adamo , L. J. Smith , J. E. Andrews , L. Ubeda , S. N. Bright , D. Thilker , A. Aloisi , T. M. Brown , R. Chandar , C. Christian , M. Cignoni , G. C. Clayton , R. da Silva , S. E. de Mink , C. Dobbs , B. G. Elmegreen , D. M. Elmegreen , A. S. Evans , M. Fumagalli , J. S. Gallagher , D. A. Gouliermis , E. K. Grebel , A. Herrero , D. A. Hunter , K. E. Johnson , R. C. Kennicutt , H. Kim , M. R. Krumholz , D. Lennon , K. Levay , C. Martin , P. Nair , A. Nota , G. Oestlin , A. Pellerin , J. Prieto , M. W. Regan , J. E. Ryon , D. Schaerer , D. Schiminovich , M. Tosi , S. D. Van Dyk , R. Walterbos , B. C. Whitmore , A. Wofford , .

Legacy ExtraGalactic UV Survey with The Hubble Space Telescope. Stellar cluster catalogues and first insights into cluster formation and evolution in NGC 628

We report the large effort which is producing comprehensive high-level young star cluster (YSC) catalogues for a significant fraction of galaxies observed with the Legacy ExtraGalactic UV Survey (LEGUS) Hubble treasury program. We present…

Astrophysics of Galaxies · Physics 2017-06-21 A. Adamo , J. E. Ryon , M. Messa , H. Kim , K. Grasha , D. O. Cook , D. Calzetti , J. C. Lee , B. C. Whitmore , B. G. Elmegreen , L. Ubeda , L. J. Smith , S. N. Bright , A. Runnholm , J. E. Andrews , M. Fumagalli , D. A. Gouliermis , L. Kahre , P. Nair , D. Thilker , R. Walterbos , A. Wofford , A. Aloisi , G. Ashworth , T. M. Brown , R. Chandar , C. Christian , M. Cignoni , G. C. Clayton , D. A. Dale , S. E. de Mink , C. Dobbs , D. M. Elmegreen , A. S. Evans , J. S. Gallagher , E. K. Grebel , A. Herrero , D. A. Hunter , K. E. Johnson , R. C. Kennicutt , M. R. Krumholz , D. Lennon , K. Levay , C. Martin , A. Nota , G. Ostlin , A. Pellerin , J. Prieto , M. W. Regan , E. Sabbi , E. Sacchi , D. Schaerer , D. Schiminovich F. Shabani , M. Tosi , S. D. Van Dyk , E. Zackrisson

Star Cluster Catalogs for the LEGUS Dwarf Galaxies

We present the star cluster catalogs for 17 dwarf and irregular galaxies in the $HST$ Treasury Program "Legacy ExtraGalactic UV Survey" (LEGUS). Cluster identification and photometry in this subsample are similar to that of the entire LEGUS…

Astrophysics of Galaxies · Physics 2019-02-13 D. O. Cook , J. C. Lee , A. Adamo , H. Kim , R. Chandar , B. C. Whitmore , A. Mok , J. E. Ryon , D. A. Dale , D. Calzetti , J. E. Andrews , A. Aloisi , G. Ashworth , S. N. Bright , T. M. Brown , C. Christian , M. Cignoni , G. C. Clayton , R. da Silva , S. E. de Mink , C. L. Dobbs , B. G. Elmegreen , D. M. Elmegreen , A. S. Evans , M. Fumagalli , J. S. Gallagher , D. A. Gouliermis , K. Grasha , E. K. Grebel , A. Herrero , D. A. Hunter , E. I. Jensen , K. E. Johnson , L. Kahre , R. C. Kennicutt , M. R. Krumholz , N. J. Lee , D. Lennon , S. Linden , C. Martin , M. Messa , P. Nair , A. Nota , G. Ostlin , R. C. Parziale , A. Pellerin , M. W. Regan , E. Sabbi , E. Sacchi , D. Schaerer , D. Schiminovich , F. Shabani , F. A. Slane , J. Small , C. L. Smith , L. J. Smith , S. Taibi , D. A. Thilker , I. C. de la Torre , M. Tosi , J. A. Turner , L. Ubeda , S. D. Van Dyk , R. A. M. Walterbos , A. Wofford

A Comprehensive Comparative Test of Seven Widely-Used Spectral Synthesis Models Against Multi-Band Photometry of Young Massive Star Clusters

We test the predictions of spectral synthesis models based on seven different massive-star prescriptions against Legacy ExtraGalactic UV Survey (LEGUS) observations of eight young massive clusters in two local galaxies, NGC 1566 and NGC…

Astrophysics of Galaxies · Physics 2016-03-16 A. Wofford , S. Charlot , G. Bruzual , J. J. Eldridge , D. Calzetti , A. Adamo , M. Cignoni , S. E. de Mink , D. A. Gouliermis , K. Grasha , E. K. Grebel , J. Lee , G. Östlin , L. J. Smith , L. Uveda , E. Zackrisson

Lenticular galaxies with UV-rings

By using the public UV imaging data obtained by the GALEX (Galaxy Ultraviolet Explorer) for nearby galaxies, we have compiled a list of lenticular galaxies possessing ultraviolet rings - starforming regions tightly confined to particular…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Marina A. Ilyina , Olga K. Sil'chenko

The Hierarchical Distribution of the Young Stellar Clusters in Six Local Star Forming Galaxies

We present a study of the hierarchical clustering of the young stellar clusters in six local (3--15 Mpc) star-forming galaxies using Hubble Space Telescope broad band WFC3/UVIS UV and optical images from the Treasury Program LEGUS (Legacy…

Astrophysics of Galaxies · Physics 2017-05-24 K. Grasha , D. Calzetti , A. Adamo , H. Kim , B. G. Elmegreen , D. A. Gouliermis , D. A. Dale , M. Fumagalli , E. K. Grebel , K. E. Johnson , L. Kahre , R. C. Kennicutt , M. Messa , A. Pellerin , J. E. Ryon , L. J. Smith , F. Shabani , D. Thilker , L. Ubeda

Radii of Young Star Clusters in Nearby Galaxies

We measure the projected half-light radii of young star clusters in 31 galaxies from the Legacy Extragalactic UV Survey (LEGUS). We implement a custom pipeline specifically designed to be robust against contamination, which allows us to…

Astrophysics of Galaxies · Physics 2021-10-20 Gillen Brown , Oleg Y. Gnedin

A GALEX Ultraviolet Imaging Survey of Galaxies in the Local Volume

We present results from a GALEX ultraviolet (UV) survey of a complete sample of 390 galaxies within ~11 Mpc of the Milky Way. The UV data are a key component of the composite Local Volume Legacy (LVL), an ultraviolet-to-infrared imaging…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Janice C. Lee , Armando Gil de Paz , Robert C. Kennicutt, , Matthew Bothwell , Julianne Dalcanton , José G. Funes , S. J. , Benjamin Johnson , Shoko Sakai , Evan Skillman , Christy Tremonti , Liese van Zee

The Properties of Ultraviolet-Luminous Galaxies at the Current Epoch

We have used the first matched set of GALEX and SDSS data to investigate the properties of a sample of 74 nearby galaxies with far-ultraviolet luminosities chosen to overlap the luminosity range of typical high-z Lyman Break Galaxies…

Astrophysics · Physics 2009-11-10 Timothy M. Heckman , Charles G. Hoopes , Mark Seibert , Christopher Martin , Samir Salim , R. Michael Rich , Guinevere Kauffmann , Stephane Charlot , Tom A. Barlow , Luciana Bianchi , Yong-Ik Byun , Jose Donas , Karl Forster , Patrick N. Jelinsky , Young-Wook Lee , Barry F. Madore , Roger F. Malina , Bruno Milliard , Patrick F. Morrissey , Susan G. Neff , David Schiminovich , Oswald H. W. Siegmund , Todd Small , Alex S. Szalay , Barry Y. Welsh , Ted K. Wyder

Studying Large and Small Scale Environments of Ultraviolet Luminous Galaxies

Studying the environments of 0.4<z<1.2 UV-selected galaxies, as examples of extreme star-forming galaxies (with star formation rates in the range of 3-30 M_sol/yr), we explore the relationship between high rates of star-formation, host halo…

Astrophysics of Galaxies · Physics 2009-07-22 Antara R. Basu-Zych , David Schiminovich , Sebastien Heinis , Roderik Overzier , Tim Heckman , Michel Zamojski , Olivier Ilbert , Anton M. Koekemoer , Tom A. Barlow , Luciana Bianchi , Tim Conrow , Jose Donas , Karl G. Forster , Peter G. Friedman , Young-Wook Lee , Barry F. Madore , D. Christopher Martin , Bruno Milliard , Patrick Morrissey , Susan G. Neff , R. Michael Rich Samir Salim , Mark Seibert , Todd A. Small , Alex S. Szalay , Ted K. Wyder , Sukyoung Yi

CFHT Legacy Ultraviolet Extension (CLUE): Witnessing Galaxy Transformations up to 7 Mpc from Rich Cluster Cores

Using the optical data from the Wide component of the CFHT Legacy Survey, and new ultraviolet data from GALEX, we study the colours and specific star formation rates (SSFR) of ~100 galaxy clusters at 0.16<z<0.36, over areas extending out to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Ting Lu , David Gilbank , Sean McGee , Michael Balogh , Sarah Gallagher

Star formation histories of the LEGUS dwarf galaxies (III): the non-bursty nature of 23 star forming dwarf galaxies

We derive the recent star formation histories of 23 active dwarf galaxies using HST observations from the Legacy Extragalactic UV Survey (LEGUS). We apply a color-magnitude diagram fitting technique using two independent sets of stellar…

Astrophysics of Galaxies · Physics 2020-01-08 M. Cignoni , E. Sacchi , M. Tosi , A. Aloisi , D. O. Cook , D. Calzetti , J. C. Lee , E. Sabbi , D. A. Thilker , A. Adamo , D. A. Dale , B. G. Elmegreen , J. S. Gallagher , E. K. Grebel , K. E. Johnson , M. Messa , L. J. Smith , L. Ubeda

UVUDF: Ultraviolet Imaging of the Hubble Ultradeep Field with Wide-field Camera 3

We present an overview of a 90-orbit Hubble Space Telescope treasury program to obtain near ultraviolet imaging of the Hubble Ultra Deep Field using the Wide Field Camera 3 UVIS detector with the F225W, F275W, and F336W filters. This survey…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-15 Harry I. Teplitz , Marc Rafelski , Peter Kurczynski , Nicholas A. Bond , Norman Grogin , Anton M. Koekemoer , Hakim Atek , Thomas M. Brown , Dan Coe , James W. Colbert , Henry C. Ferguson , Steven L. Finkelstein , Jonathan P. Gardner , Eric Gawiser , Mauro Giavalisco , Caryl Gronwall , Daniel J. Hanish , Kyoung-Soo Lee , Duilia F. de Mello , Swara Ravindranath , Russell E. Ryan , Brian D. Siana , Claudia Scarlata , Emmaris Soto , Elysse N. Voyer , Arthur M. Wolfe

The Ultraviolet Sky: An Overview from the GALEX Surveys

The Galaxy Evolution Explorer (GALEX) has performed the first surveys of the sky in the Ultraviolet (UV). Its legacy is an unprecedented database with more than 200 million source measurements in far-UV (FUV) and near-UV (NUV), as well as…

Astrophysics of Galaxies · Physics 2018-02-14 Luciana Bianchi , Alberto Conti , Bernie Shiao

The Young and the Dustless: Interpreting Radio Observations of UltraViolet Luminous Galaxies

Ultraviolet Luminous Galaxies (UVLGs) have been identified as intensely star-forming, nearby galaxies. A subset of these, the supercompact UVLGs, are believed to be local analogs of high redshift Lyman Break Galaxies. Here we investigate…

Astrophysics · Physics 2009-11-13 Antara R. Basu-Zych , David Schiminovich , Benjamin D. Johnson , Charles Hoopes , Roderik Overzier , Marie A. Treyer , Timothy M. Heckman , Tom A. Barlow , Luciana Bianchi , Tim Conrow , Jose Donas , Karl G. Forster , Peter G. Friedman , Young-Wook Lee , Barry F. Madore , D. Christopher Martin , Bruno Milliard , Patrick Morrissey , Susan G. Neff , R. Michael Rich , Samir Salim , Mark Seibert , Todd A. Small , Alex S. Szalay , Ted K. Wyder , Suk Young Yi

The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. IX. The Atlas of Multiple Stellar Populations

We use high-precision photometry of red-giant-branch (RGB) stars in 57 Galactic globular clusters (GCs), mostly from the `Hubble Space Telescope (HST) UV Legacy Survey of Galactic globular clusters', to identify and characterize their…

Solar and Stellar Astrophysics · Physics 2016-10-12 A. P. Milone , G. Piotto , A. Renzini , A. F. Marino , L. R. Bedin , E. Vesperini , F. D'Antona , D. Nardiello , J. Anderson , I. R. King , D. Yong , A. Bellini , A. Aparicio , B. Barbuy , T. M. Brown , S. Cassisi , S. Ortolani , M. Salaris , A. Sarajedini , R. P. van der Marel

Galaxy UV Legacy Project: Survey Description and First Insights Into NGC 4449 Recent History of Star Formation

The Galaxy UV Legacy Project (GULP) is a Cycle 28 Treasury program with the Hubble Space Telescope (HST) designed to characterize resolved massive stars, OB associations, and young star clusters (YSCs) in 26 nearby star-forming galaxies.…

Astrophysics of Galaxies · Physics 2026-03-09 E. Sabbi , B. Meena , P. Zeidler , V. Bajaj , D. Calzetti , J. J. Eldridge , P. Facchini , S. Linden , P. A. Crowther , A. Adamo , L. Bianchi , M. Cignoni , B. G. Elmegreen , D. M. Elmegreen , J. S. Gallagher , M. Gennaro , E. K. Grebel , R. S. Klessen , A. Pasquali , L. J. Smith , A. Wofford

Star Cluster Formation and Evolution in M101: An Investigation with the Legacy Extragalactic UV Survey

We present Hubble Space Telescope WFC3/UVIS (F275W, F336W) and ACS/WFC optical (F435W, F555W, and F814W) observations of the nearby grand-design spiral galaxy M101 as part of the Legacy Extragalactic UV Survey (LEGUS). Compact sources…

Astrophysics of Galaxies · Physics 2022-08-31 S. T. Linden , G. Perez , D. Calzetti , S. Maji , M. Messa , B. C. Whitmore , R. Chandar , A. Adamo , K. Grasha , D. O. Cook , B. G. Elmegreen , D. A. Dale , E. Sacchi , E. Sabbi , E. K. Grebel , L. Smith

Star Cluster Properties in Two LEGUS Galaxies Computed with Stochastic Stellar Population Synthesis Models

We investigate a novel Bayesian analysis method, based on the Stochastically Lighting Up Galaxies (slug) code, to derive the masses, ages, and extinctions of star clusters from integrated light photometry. Unlike many analysis methods, slug…

Astrophysics of Galaxies · Physics 2015-10-28 Mark R. Krumholz , Angela Adamo , Michele Fumagalli , Aida Wofford , Daniela Calzetti , Janice C. Lee , Bradley C. Whitmore , Stacey N. Bright , Kathryn Grasha , Dimitrios A. Gouliermis , Hwihyun Kim , Preethi Nair , Jenna E. Ryon , Linda J. Smith , David Thilker , Leonardo Ubeda , Erik Zackrisson

Hierarchical Star Formation in Nearby LEGUS Galaxies

Hierarchical structure in ultraviolet images of 12 late-type LEGUS galaxies is studied by determining the numbers and fluxes of nested regions as a function of size from ~1 to ~200 pc, and the number as a function of flux. Two starburst…

Astrophysics of Galaxies · Physics 2015-06-19 Debra Meloy Elmegreen , Bruce G. Elmegreen , Angela Adamo , Alessandra Aloisi , Jennifer Andrews , Francesca Annibali , Stacey N. Bright , Daniela Calzetti , Michele Cignoni , Aaron S. Evans , John S. Gallagher , Dimitrios A. Gouliermis , Eva K. Grebel , Deidre A. Hunter , Kelsey Johnson , Hwi Kim , Janice Lee , Elena Sabbi , Linda Smith , David Thilker , Monica Tosi , Leonardo Ubeda