Publications (41)
The Recent Star Formation in NGC 6822: an Ultraviolet Study
Boryana V. Efremova, Luciana Bianchi, David A. Thilker +15
We characterize the star formation in the low-metallicity galaxy NGC 6822 over the past few hundred million years, using GALEX far-UV (FUV, 1344-1786 A) and near-UV (NUV, 1771-2831…
Nitrogen Production in Starburst Galaxies Detected by GALEX
Ryan P. Mallery, Lisa Kewley, R. Michael Rich +22
We investigate the production of nitrogen in star forming galaxies with ultraviolet (UV) radiation detected by the Galaxy Evolution Explorer Satellite (GALEX). We use a sample of 8…
The Galaxy Evolution Explorer: A Space Ultraviolet Survey Mission
D. Christopher Martin, James Fanson, David Schiminovich +21
We give an overview of the Galaxy Evolution Explorer (GALEX), a NASA Explorer Mission launched on April 28, 2003. GALEX is performing the first space UV sky-survey, including imagi…
Ongoing Formation of Bulges and Black Holes in the Local Universe: New Insights from GALEX
Guinevere Kauffmann, Timothy M. Heckman, Tamas Budavari +21
We analyze a volume-limited sample of massive bulge-dominated galaxies with data from both the Sloan Digital Sky Survey and the Galaxy Evolution Explorer (GALEX) satellite. The gal…
The Star Formation Rate Function of the Local Universe
D. Christopher Martin, Mark Seibert, Veronique Buat +22
We have derived the bivariate luminosity function for the far ultraviolet (1530Angstroms) and far infrared (60 microns). We used matched GALEX and IRAS data, and redshifts from NED…
UV emission and Star Formation in Stephan's Quintet
C. Kevin Xu, Jorge Iglesias-Paramo, Denis Burgarella +22
we present the first GALEX UV images of the well known interacting group of galaxies, Stephan's Quintet (SQ). We detect widespread UV emission throughout the group. However, there…
Statistical Properties of the GALEX/SDSS matched source catalogs, and classification of the UV sources
Luciana Bianchi, Lino Rodriguez-Merino, Maurice Viton +30
We use the Galaxy Evolution Explorer (GALEX) Medium and All-Sky-Imaging Survey (MIS & AIS) data from the first public data release (GR1), matched to the Sloan Digital Sky Survey (S…
GALEX Observations of an Energetic Ultraviolet Flare on the dM4e Star GJ 3685A
Richard D. Robinson, Jonathan M. Wheatley, Barry Y. Welsh +23
The Galaxy Evolution Explorer (GALEX) satellite has obtained high time resolution ultraviolet photometry during a large flare on the M4 dwarf star GJ 3685A. Simultaneous NUV (1750…
UV and FIR selected star-forming galaxies at z=0: differences and overlaps
C. Kevin Xu, Veronique Buat, Jorge Iglesias-Páramo +22
We study two samples of local galaxies, one is UV (GALEX) selected and the other FIR (IRAS) selected, to address the question whether UV and FIR surveys see the two sides ('bright'…
The DEEP2 Galaxy Redshift Survey: AEGIS Observations of a Dual AGN at z=0.7
Brian F. Gerke, Jeffrey A. Newman, Jennifer Lotz +15
We present evidence for a dual Active Galactic Nucleus (AGN) within an early-type galaxy at z=0.709 in the Extended Groth Strip. The galaxy lies on the red sequence, with absolute…
IR and UV Galaxies at z=0.6 -- Evolution of Dust Attenuation and Stellar Mass as Revealed by SWIRE and GALEX
C. Kevin Xu, David Shupe, Veronique Buat +19
We study dust attenuation and stellar mass of star-forming galaxies using new SWIRE observations in IR and GALEX observations in UV. Two samples are selected from t…
The WiggleZ Dark Energy Survey: small-scale clustering of Lyman Break Galaxies at z < 1
Chris Blake, Russell Jurek, Sarah Brough +15
The WiggleZ Dark Energy Survey is a large-scale structure survey of intermediate-redshift UV-selected emission-line galaxies scheduled to cover 1000 sq deg, spanning a broad redshi…
GALEX Ultraviolet Photometry of Globular Clusters in M31: Three Year Results and a Catalog
Soo-Chang Rey, R. Michael Rich, Sangmo T. Sohn +23
We present ultraviolet (UV) photometry of M31 globular clusters (GCs) found in 23 Galaxy Evolution Explorer (GALEX) images covering the entirety of M31. We detect 485 and 273 GCs (…
Extinction Corrected Star Formation Rates Empirically Derived from Ultraviolet-Optical Colors
Marie Treyer, David Schiminovich, Ben Johnson +20
Using a sample of galaxies from the Sloan Digital Sky Survey spectroscopic catalog with measured star-formation rates (SFRs) and ultraviolet (UV) photometry from the GALEX Medium I…
Ultraviolet, Optical, and Infrared Constraints on Models of Stellar Populations and Dust Attenuation
Benjamin D. Johnson, David Schiminovich, Mark Seibert +19
The color of galaxies is a fundamental property, easily measured, that constrains models of galaxies and their evolution. Dust attenuation and star formation history (SFH) are the…
The Look-back Time Evolution of Far-Ultraviolet Flux from the Brightest Cluster Elliptical Galaxies at z < 0.2
Chang H. Ree, Young-Wook Lee, Sukyoung K. Yi +28
We present the GALEX UV photometry of the elliptical galaxies in Abell clusters at moderate redshifts (z < 0.2) for the study of the look-back time evolution of the UV upturn pheno…
The UV-optical Galaxy Color-Magnitude Diagram I: Basic Properties
Ted K. Wyder, D. Christopher Martin, David Schiminovich +19
We have analyzed the bivariate distribution of galaxies as a function of ultraviolet-optical colors and absolute magnitudes in the local universe. The sample consists of galaxies w…
Radial variation of attenuation and star formation in the largest late-type disks observed with GALEX
Samuel Boissier, Armando Gil de Paz, Alessandro Boselli +24
For a sample of 43 nearby, late-type galaxies, we have investigated the radial variation of both the current star formation rate and the dust-induced UV light attenuation. To do th…
A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe
David A. Thilker, Luciana Bianchi, Gerhardt Meurer +26
We have initiated a search for extended ultraviolet disk (XUV-disk) galaxies in the local universe. Herein, we compare GALEX UV and visible--NIR images of 189 nearby (D40 Mpc) S…
Lyman alpha emitting galaxies at 0.2 < z < 0.35 from GALEX spectroscopy
Jean-Michel Deharveng, Todd Small, Tom A. Barlow +19
The GALEX (Galaxy Evolution Explorer) spectroscopic survey mode, with a resolution of about 8 A in the FUV (1350 - 1750 A) and about 20 A in the NUV (1950 - 2750 A) is used for a s…
Keck/Deimos Spectroscopy of a GALEX UV Selecte Sample from the Medium Imaging Survey
Ryan P. Mallery, R. Michael Rich, Samir Salim +20
We report results from a pilot program to obtain spectroscopy for objects detected in the Galaxy Evolution Explorer (GALEX) Medium Imaging Survey (MIS). Our study examines the prop…
The Properties of Ultraviolet-Luminous Galaxies at the Current Epoch
Timothy M. Heckman, Charles G. Hoopes, Mark Seibert +23
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 lu…
The Galex Ultraviolet Variability (GUVV) Catalog
Barry Y. Welsh, Jonathan M. Wheatley, Kenneth Heafield +24
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 gain…
NGC 404, A Rejuvenated Lenticular Galaxy on a Merger-Induced, Blueward Excursion into the Green Valley
David A. Thilker, Luciana Bianchi, David Schiminovich +14
We have discovered recent star formation in the outermost portion (1-4x R_25) of the nearby lenticular (S0) galaxy NGC 404 using GALEX UV imaging. FUV-bright sources are strongly c…
Clustering Properties of restframe UV selected galaxies I: the correlation length derived from GALEX data in the local Universe
Bruno Milliard, Sebastien Heinis, Jeremy Blaizot +25
We present the first measurements of the angular correlation function of galaxies selected in the far (1530 A) and near (2310 A) Ultraviolet from the GALEX survey fields overlappin…
The Diverse Properties of the Most Ultraviolet Luminous Galaxies Discovered by the Galaxy Evolution Explorer
Charles G. Hoopes, Timothy M. Heckman, Samir Salim +21
We report on the properties of a sample of ultraviolet luminous galaxies (UVLGs) selected by matching the Galaxy Evolution Explorer (GALEX) Surveys with the Sloan Digital Sky Surve…
Galaxy Clustering and Large-Scale Structure from z = 0.2 to z = 0.5 in Two Norris Redshift Surveys
Todd Small, Chung-Pei Ma, Wallace Sargent +1
(abridged) We present a study of the nature and evolution of large-scale structure based on two independent redshift surveys of faint field galaxies conducted with the 176-fiber No…
The Ultraviolet-Optical Color-Magnitude Diagram III: Constraints on Evolution from the Blue to Red Sequence
D. Christopher Martin, Ted K. Wyder, David Schiminovich +17
We introduce a new quantity, the mass flux density of galaxies evolving from the blue sequence to the red sequence. We propose a simple technique for constraining this mass flux us…
Number Counts of GALEX Sources in FUV (1530A) and NUV (2310A) Bands
C. Kevin Xu, Jose Donas, Stephane Arnouts +21
Number Counts of galaxies in two GALEX bands (FUV: 1530A and NUV: 2310A, both in AB magnitudes) are reported. They provide for the first time in the literature homogeneously calibr…
The Calibration and Data Products of the Galaxy Evolution Explorer
Patrick Morrissey, Tim Conrow, Tom A. Barlow +20
We describe the calibration status and data products pertaining to the GR2 and GR3 data releases of the Galaxy Evolution Explorer (GALEX). These releases have identical pipeline ca…
The WiggleZ Dark Energy Survey: Survey Design and First Data Release
Michael J. Drinkwater, Russell J. Jurek, Chris Blake +24
The WiggleZ Dark Energy Survey is a survey of 240,000 emission line galaxies in the distant universe, measured with the AAOmega spectrograph on the 3.9-m Anglo-Australian Telescope…
Ultraviolet through Infrared Spectral Energy Distributions from 1000 SDSS Galaxies: Dust Attenuation
Benjamin D. Johnson, David Schiminovich, Mark Seibert +19
The meaningful comparison of models of galaxy evolution to observations is critically dependent on the accurate treatment of dust attenuation. To investigate dust absorption and em…
GALEX UV Color Relations for Nearby Early-Type Galaxies
Jose Donas, Jean-Michel Deharveng, R. Michael Rich +23
We use GALEX/optical photometry to construct color-color relationships for early-type galaxies sorted by morphological type. We have matched objects in the GALEX GR1 public release…
Tidal Dwarf Galaxies around a Post-merger Galaxy, NGC 4922
Yun-Kyeong Sheen, Hyunjin Jeong, Sukyoung K. Yi +20
One possible channel for the formation of dwarf galaxies involves birth in the tidal tails of interacting galaxies. We report the detection of a bright UV tidal tail and several yo…
The UV Galaxy Luminosity Function in the Local Universe from GALEX Data
Ted K. Wyder, Marie A. Treyer, Bruno Milliard +22
We present the results of a determination of the galaxy luminosity function at ultraviolet wavelengths at redshifts of from GALEX data. We determined the luminosity fun…
The Star Formation and Extinction Co-Evolution of UV-Selected Galaxies over 0.05<z<1.2
D. Christopher Martin, Todd Small, David Schiminovich +22
We use a new stacking technique to obtain mean mid IR and far IR to far UV flux ratios over the rest near-UV/near-IR color-magnitude diagram. We employ COMBO-17 redshifts and COMBO…
Clustering Properties of restframe UV selected galaxies II: Migration of Star Formation sites with cosmic time from GALEX and CFHTLS
Sebastien Heinis, Bruno Milliard, Stephane Arnouts +24
We analyze the clustering properties of ultraviolet selected galaxies by using GALEX-SDSS data at z<0.6 and CFHTLS deep u' imaging at z=1. These datasets provide a unique basis at…
Suppression of star formation in early-type galaxies by feedback from supermassive black holes
Kevin Schawinski, Sadegh Khochfar, Sugata Kaviraj +21
Detailed high-resolution observations of the innermost regions of nearby galaxies have revealed the presence of supermassive black holes1. These black holes may interact with their…
The WiggleZ project: AAOmega and Dark Energy
Karl Glazebrook, Chris Blake, Warrick Couch +16
We describe the `WiggleZ' spectroscopic survey of 280,000 star-forming galaxies selected from a combination of GALEX ultra-violet and SDSS + RCS2 optical imaging. The fundamental g…
UV Star Formation Rates in the Local Universe
Samir Salim, R. Michael Rich, Stéphane Charlot +21
We measure star formation rates of ~50,000 optically-selected galaxies in the local universe (z~0.1), spanning a range from gas-rich dwarfs to massive ellipticals. We obtain dust-c…
The detection of M-dwarf UV flare events in the GALEX data archives
Barry Y. Welsh, Jonathan M. Wheatley, Mark Seibert +13
We present the preliminary results from implementing a new software tool that enables inspection of time-tagged photon data for the astronomical sources contained within individual…