The Galex Ultraviolet Variability (GUVV) Catalog

Abstract

We present Version 1.0 of the NASA Galaxy Evolution Explorer (GALEX) ultraviolet variability catalog (GUVV) that contains information on 84 time-variable and transient sources gained with simultaneous near and far ultraviolet photometric observations. These time-variable sources were serendipitously revealed in the various 1.2 degree star fields currently being surveyed by the GALEX satellite in two ultraviolet bands (NUV 1750-2750A, FUV 1350-1750A) with limiting AB magnitudes of 23-25. The largest-amplitude variable objects presently detected by GALEX are M-dwarf flare stars, which can brighten by 5-10 mag in both the NUV and FUV bands during short duration (< 500s) outbursts. Other types of large-amplitude ultraviolet variable objects include ab-type RR Lyrae stars, which can vary periodically by 2-5mag in the GALEX FUV band. This first GUVV catalog lists galactic positions and possible source identifications in order to provide the astronomical community with a list of time-variable objects that can now be repeatedly observed at other wavelengths. We expect the total number of time-variable source detections to increase as the GALEX mission progresses, such that later version numbers of the GUVV catalog will contain substantially more variable sources.

References in corpus (5)

• The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
• The USNO-B Catalog
• The First Data Release of the Sloan Digital Sky Survey
• The On-Orbit Performance of the Galaxy Evolution Explorer
• Large-Amplitude Ultraviolet Variations in the RR Lyrae Star ROTSE-I J143753.84+345924.8

Cited by in corpus (21)

• Horizontal Branch Stars: The Interplay between Observations and Theory, and Insights into the Formation of the Galaxy
• UV/Optical Detections of Candidate Tidal Disruption Events by GALEX and CFHTLS
• Science with a wide-field UV transient explorer
• The GALEX Time Domain Survey I. Selection and Classification of Over a Thousand UV Variable Sources
• The detection of M-dwarf UV flare events in the GALEX data archives
• A Search for Fast Optical Transients in the Pan-STARRS1 Medium-Deep Survey: M Dwarf Flares, Asteroids, Limits on Extragalactic Rates, and Implications for LSST
• Data Mining for Dwarf Novae in SDSS, GALEX and Astrometric Catalogues
• The Second Galex Ultraviolet Variability (GUVV-2) Catalog
• The UV Emission of Stars in LAMOST Survey I. Catalogs
• Compact white-dwarf binaries in the combined SRG/eROSITA/SDSS eFEDS survey
• Stellar Flares Are Far-Ultraviolet Luminous
• White dwarf binaries Across the H-R Diagram
• Detecting Variability in Massive Astronomical Time-Series Data II: Variable Candidates in the Northern Sky Variability Survey
• New Time-Resolved, Multi-Band Flares In The GJ 65 System With gPhoton
• The Identification of RR Lyrae and Delta Scuti Stars from Variable GALEX Ultraviolet Sources
• Near-ultraviolet detections of four dwarf nova candidates in the globular cluster 47 Tucanae
• Prospects for Observations of Transient UV Events with the TAUVEX UV Observatory
• TUVOpipe: a pipeline to search for UV transients with Swift-UVOT
• On the Use of Field RR Lyrae as Galactic Probes -- VIII. Early Formation of the Galactic Spheroid
• Spectroscopic and Photometric Observations of Unidentified Ultraviolate Variable Objects in GUVV-2 Catalog
• The Near Ultraviolet Transient Surveyor (NUTS): An ultraviolet telescope to observe variable sources