English
Related papers

Related papers: The Second Galex Ultraviolet Variability (GUVV-2) …

200 papers

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…

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

We have performed a wide-area ultraviolet (UV) imaging survey using the GALaxy Evolution eXplorer (GALEX) to search for bright, point-like UV sources behind M31's extended halo. Our survey consisted of 46 pointings covering an effective…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Andrew Fittingoff , J. Xavier Prochaska , Jasonjot S. Kalirai , Jay Strader , Puragra Guhathakurta , Kyle F. Kaplan

Solar-type members of the rich, nearly Solar-age and Solar-metallicity M67 open cluster are systematically investigated for ultraviolet variability. We utilize archival Galaxy Evolution Explorer (GALEX) data which features several imaging…

Solar and Stellar Astrophysics · Physics 2025-05-20 Carl Melis , Ekamjot Kaire

In this paper, we report the detections of stellar variabilities from the first 2-year observations of sky area of about 1300 square degrees from the Tsinghua University-NAOC Transient Survey (TNTS). A total of 1237 variable stars…

Solar and Stellar Astrophysics · Physics 2015-09-23 Xinyu Yao , Lingzhi Wang , Xiaofeng Wang , Tianmeng Zhang , Juncheng Chen , Wenlong Yuan , Jun Mo , Wenxiong Li , Zhiping Jin , Xuefeng Wu , JunDan Nie , Xu Zhou

We present ultraviolet (UV) integrated colors of 44 Galactic globular clusters (GGCs) observed with the Galaxy Evolution Explorer (GALEX) in both FUV and NUV bands. This data-base is the largest homogeneous catalog of UV colors ever…

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 observations of a deep near-ultraviolet (NUV) survey of the Kepler field made in 2012 with the Galaxy Evolution Explorer (GALEX) Complete All-Sky UV Survey Extension (CAUSE). The GALEX-CAUSE Kepler survey (GCK) covers 104 square…

Solar and Stellar Astrophysics · Physics 2015-11-11 Manuel Olmedo , James Lloyd , Eric E. Mamajek , Miguel Chávez , Emanuele Bertone , D. Christopher Martin , James D. Neill

We investigate near-ultraviolet (NUV) variability in the Galactic globular cluster (GC) 47 Tucanae (47 Tuc). This work was undertaken within the GC sub-project of the Transient UV Objects project, a programme which aims to find and study…

High Energy Astrophysical Phenomena · Physics 2020-02-26 David Modiano , Aastha S. Parikh , Rudy Wijnands

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 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

The VISTA Variables in the Via Lactea (VVV) survey obtained near-infrared photometry toward the Galactic bulge and the southern disc plane for a decade (2010 - 2019). We designed a modified Lomb-Scargle method to search for large-amplitude…

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 searched the Northern Hemisphere Fields of the GALEX Time-Domain Survey (TDS) for galaxies with UV variability indicative of active galactic nuclei (AGNs). We identified 48 high-probability candidate AGNs from a parent sample of 1819…

Astrophysics of Galaxies · Physics 2024-05-31 Erik J. Wasleske , Vivienne F. Baldassare , Christopher M. Carroll

We selected 82 u-band variable objects based on the u-band photometry data from SCUSS and SDSS, in the field of LAMOST Complete Spectroscopic Survey of Pointing Area at Southern Galactic Cap. The magnitude variation of the targets is…

We present a catalog of 36,120 QSO candidates from the Galaxy Evolution Explorer (GALEX) Release Two (GR2) UV catalog and the USNO-A2.0 optical catalog. The selection criteria are established using known quasars from the Sloan Digital Sky…

Astrophysics · Physics 2011-02-11 David W. Atlee , Andrew Gould

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 quantify the variability of faint unresolved optical sources using a catalog based on multiple SDSS imaging observations. The catalog covers SDSS Stripe 82, and contains 58 million photometric observations in the SDSS ugriz system for…

We present a catalogue of 618 high amplitude infrared variable stars (1 < DeltaK < 5 mag) detected by the two widely separated epochs of 2.2 um data in the UKIDSS Galactic plane survey, from searches covering 1470 deg^2. Most were…

Solar and Stellar Astrophysics · Physics 2017-10-11 P. W. Lucas , L. C. Smith , C. Contreras Pena , Dirk Froebrich , Janet E. Drew , M. S. N. Kumar , J. Borissova , D. Minniti , R. Kurtev , M. Monguio

We have obtained deep far- (FUV) and near-ultraviolet (NUV) images of the inner region of the dense globular cluster M15 with the Advanced Camera for Surveys on board the Hubble Space Telescope. The FUV-NUV colour-magnitude diagram shows a…

Astrophysics · Physics 2010-01-28 A. Dieball , C. Knigge , D. R. Zurek , M. M. Shara , K. S. Long , P. A. Charles , D. Hannikainen