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The Galaxy Evolution Explorer (GALEX) has produced the largest photometric catalogue of ultraviolet (UV) sources. As such, it has defined the new standard bands for UV photometry: the near UV band (NUV) and the far UV band (FUV). However,…

Instrumentation and Methods for Astrophysics · Physics 2016-11-30 Leire Beitia-Antero , Ana I. Gomez de Castro

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

In this paper we introduce the deepest and most extensive ultraviolet extragalactic source catalogs of the Virgo Cluster area to date. Archival and targeted GALEX imaging is compiled and combined to provide the deepest possible coverage…

The Galaxy Evolution Explorer (GALEX) imaged the sky in two Ultraviolet (UV) bands, far-UV (FUV) and near-UV (NUV), delivering the first comprehensive sky surveys at these wavelengths. The GALEX database contains FUV and NUV images,…

Astrophysics of Galaxies · Physics 2018-02-14 Luciana Bianchi , Bernard Shiao , David Thilker

We present the motivations for and methods we used to create a new ground-based photometric survey of the field targeted by the NASA Kepler Mission. The survey contains magnitudes for 4414002 sources in one or more of the UBV filters,…

Solar and Stellar Astrophysics · Physics 2015-06-04 Mark E. Everett , Steve B. Howell , Karen Kinemuchi

The Galaxy Evolution Explorer (GALEX) imaged the sky in the Ultraviolet (UV) for almost a decade, delivering the first sky surveys at these wavelengths. Its database contains far-UV (FUV, $\lambda$$_{eff}$ $\sim$ 1528\AA) and near-UV (NUV,…

Astrophysics of Galaxies · Physics 2018-02-14 Luciana Bianchi

Using the far-UV (FUV) and near-UV (NUV) photometry from the NASA Galaxy Evolution Explorer (GALEX), we searched for evidence of increased stellar activity due to tidal and/or magnetic star-planet interactions (SPI) in the 272 of known FGK…

Solar and Stellar Astrophysics · Physics 2015-06-12 Evgenya L. Shkolnik

We present ultraviolet photometry (NUV band, 180--280 nm) of 405 asteroids observed serendipitously by the Galaxy Evolution Explorer (GALEX) from 2003--2012. All asteroids in this sample were detected by GALEX at least twice. Unambiguous…

Earth and Planetary Astrophysics · Physics 2015-08-19 Adam Waszczak , Eran O. Ofek , Shrinivas R. Kulkarni

We present the ultraviolet (UV) imaging observation of planetary nebulae (PNe) using archival data of Galaxy Evolution Explorer (GALEX). We found 358 PNe detected by GALEX in near-UV (NUV). We have compiled a catalogue of 108 extended PNe…

Astrophysics of Galaxies · Physics 2019-11-06 Ananta C. Pradhan , Swayamtrupta Panda , Mudumba Parthasarathy , Jayant Murthy , Devendra K. Ojha

We present the second Galaxy Evolution Explorer (GALEX) Ultraviolet Variability (GUVV-2) Catalog that contains information on 410 newly discovered time-variable sources gained through simultaneous near (NUV 1750-2750A) and far (FUV…

Astrophysics · Physics 2009-11-13 Jonathan M. Wheatley , Barry Y. Welsh , Stanley E. Browne

We assembled a catalogue of bright, hot subdwarf and white dwarf stars extracted from a joint ultraviolet, optical, and infrared source list. The selection is secured using colour criteria that correlate well with effective temperatures…

Solar and Stellar Astrophysics · Physics 2015-05-19 S. Vennes , A. Kawka , P. Nemeth

We present the first catalogue of point-source UV-excess sources selected from the UVEX survey. UVEX images the Northern Galactic Plane in the U, g, r and HeI5875 bands in the Galactic latitude range -5deg<b<+5deg. Through an automated…

The ultraviolet catalog of nearby galaxies made by \citet{Gil07} presents the integrated photometry and surface brightness profiles for 1034 nearby galaxies observed by \textit{Galaxy Evolution Explorer} (\textit{GALEX}). We provide an…

Astrophysics of Galaxies · Physics 2015-09-16 Yu Bai , Hu Zou , JiFeng Liu , Song Wang

We report on intriguing photometric properties of Galactic stars observed in the GALEX satellite's far-UV and near-UV bandbasses as well as from the SDSS survey and the Kepler Input Catalog. First, the FUV-NUV color distribution of stars in…

Solar and Stellar Astrophysics · Physics 2015-06-19 Myron Smith , Luciana Bianchi , Bernard Shiao

We have carried out a Galaxy Evolution Explorer (GALEX) Cycle 1 guest investigator program covering 56 square degrees near the Taurus T association and 12 square degrees along the northern edge of the Upper Scorpius OB association. We…

Solar and Stellar Astrophysics · Physics 2026-03-23 Krzysztof Findeisen , Lynne Hillenbrand

We present an update of our low-resolution spectroscopic follow-up and model atmosphere analysis of hot subdwarf stars from the Galaxy Evolution Explorer (GALEX) survey. Targets were selected on the basis of colour indices calculated from…

Solar and Stellar Astrophysics · Physics 2012-12-06 Péter Németh , Adéla Kawka , Stéphane Vennes

We present a catalog of 71,364 point-like UV sources with SDSS photometry and GALEX FUV-NUV less or equal 0.1mag. The limit corresponds to stellar Teff greater than 15,000 to 20,000K, slightly depending on gravity but nearly…

Solar and Stellar Astrophysics · Physics 2024-09-10 Luciana Bianchi

Using archival observations recorded over a 5+ year timeframe with the NASA Galaxy Evolution Explorer (GALEX) satellite, we present a study of the ultraviolet (UV) variability of 4360 quasars of redshifts up to z=2.5 that have optical…

Astrophysics of Galaxies · Physics 2015-05-27 Barry Y. Welsh , Jonathan M. Wheatley , James D. Neill

We present comprehensive catalogs of hot star candidates in the Milky Way, selected from GALEX far-UV (FUV, 1344-1786 AA) and near-UV (NUV, 1771-2831 AA) imaging. The FUV and NUV photometry allows us to extract the hottest stellar objects,…

Solar and Stellar Astrophysics · Physics 2015-05-20 Luciana Bianchi , Boryana Efremova , James Herald , Leo Girardi , Alexandre Zabot , Paola Marigo , Christopher Martin

The Galaxy Evolution Explorer (GALEX) satellite performed the first and only large-area UV survey, which in tandem with the Sloan Digital Sky Survey (SDSS) has facilitated modeling of the spectral energy distributions (SEDs) of low-redshift…

Astrophysics of Galaxies · Physics 2023-07-27 Chandler Osborne , Samir Salim , Mederic Boquien , Mark Dickinson , Stephane Arnouts
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