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Related papers: Tracing Star Formation in Cool Core Clusters with …

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We present GALEX near ultraviolet (NUV:1750 - 2750A) and far ultraviolet (FUV: 1350 - 1750A) imaging observations of two 1.2 degree diameter fields in the Hyades and Pleiades open clusters in order to detect possible UV variability of the…

Astrophysics of Galaxies · Physics 2015-05-13 S. E. Browne , B. Y. Welsh , J. M. Wheatley

We present the first results of an ongoing spectroscopic survey of galaxies selected in the rest-frame ultraviolet (UV). The redshift distribution extends over 0<z<0.5 and a high fraction of the sources show intense nebular emission lines…

Astrophysics · Physics 2009-10-30 M. A. Treyer , R. S. Ellis , B. Milliard , J. Donas , T. J. Bridges

AIMS: Search for star formation regions in the hosts of potentially young radio galaxies (Gigahertz Peaked Spectrum and Compact Steep Spectrum sources). METHODS: Near-UV imaging with the Hubble Space Telescope Advanced Camera for Surveys.}…

Astrophysics · Physics 2009-11-13 A. Labiano , C. P. O'Dea , P. D. Barthel , W. H. de Vries , S. A. Baum

The giant galaxies located at the centers of cluster cooling flows are frequently sites of vigorous star formation. In some instances, star formation appears to have been triggered by the galaxy's radio source. The colors and spectral…

Astrophysics · Physics 2009-10-31 B. R. McNamara

We present a local sample (z<0.15) of 280 Star-Forming Compact Groups (SFCGs) of galaxies identified in the ultraviolet Galaxy Evolution EXplorer (GALEX) All-sky Imaging Survey (AIS). So far, just one prototypical example of SFCG, the Blue…

Astrophysics of Galaxies · Physics 2015-09-09 Jonathan D. Hernandez-Fernandez , Claudia Mendes de Oliveira

Through the study of two absorption spectral features in the optical range (Mg2 and the 4000 A break), we find evidence for star formation in the inner regions of cooling-flow galaxies. The application of simple stellar population models…

Astrophysics · Physics 2015-06-24 N. Cardiel , J. Gorgas , A. Aragon-Salamanca

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. We find for the first time that GCs associated with the Sagittarius dwarf…

Astrophysics of Galaxies · Physics 2013-01-21 E. Dalessandro , R. P. Schiavon , F. R. Ferraro , S. T. Sohn , B. Lanzoni , R. W. O' Connell

We combine GALEX (ultra-violet; UV) and SDSS (optical) photometry to study the recent star formation histories of ~100 field galaxies on the optical red sequence, a large fraction of which exhibit widespread signs of disturbed morphologies…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Sugata Kaviraj

Ultraviolet imaging with the Galaxy Evolution Explorer (GALEX) has revealed an extensive sample of UV-bright stellar complexes in the extreme outer disk of M83, extending to about four times the radius where the majority of HII regions are…

We investigate the nature of the diffuse intra-cluster ultraviolet light seen in twelve local starburst galaxies, using long-slit ultraviolet spectroscopy obtained with the Space Telescope Imaging Spectrograph (STIS) aboard the Hubble Space…

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

We present a Chandra study of 38 X-ray luminous clusters of galaxies in the ROSAT Brightest Cluster Sample (BCS) that lie at z~0.15-0.4. We find that the majority of clusters at moderate redshift generally have smooth, relaxed morphologies…

Astrophysics · Physics 2009-09-17 F. E. Bauer , A. C. Fabian , J. S. Sanders , S. W. Allen , R. M. Johnstone

Metal-poor solar-type stars display a significant reduction in metal-line blanketing at short wavelengths, leading to an excess of near-ultraviolet (NUV) flux compared to their metal-rich counterparts. We utilize GALEX NUV and $\it{Gaia}$…

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 and the first IR1.1 internal release, with the RC3…

The combination of both contributions from the observed UV emission and the absorbed radiations reprocessed in the infrared represents the ideal approach to constrain the activity of massive star formation in galaxies. Using recent results…

Astrophysics · Physics 2007-05-23 E. Le Floc'h , the MIPS team

We present a systematic study of gas density perturbations in cool cores of high-mass galaxy clusters. We select 12 relaxed clusters from the Cluster Lensing And Supernova survey with Hubble (CLASH) sample and analyze their cool core…

Cosmology and Nongalactic Astrophysics · Physics 2020-04-08 Shutaro Ueda , Yuto Ichinohe , Sandor M. Molnar , Keiichi Umetsu , Tetsu Kitayama

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…

We carried out a systematic search for new star clusters in a field of 5$^{\circ} \times5^{\circ}$ centred close to the Galactic Nucleus using the infrared JHK$_s$ 2MASS Survey archive. In addition we searched for embedded clusters in the…

Astrophysics · Physics 2007-05-23 C. M. Dutra , E. Bica

During the UIT/Astro Spacelab missions, the Ultraviolet Imaging Telescope obtained spatially resolved far-UV (lambda 1500 A) imagery of ~35 galaxies exhibiting recent massive star formation. The sample includes disk systems, irregular,…

Astrophysics · Physics 2009-10-28 Michael N. Fanelli , Theodore P. Stecher , the UIT Science Team

Clusters of galaxies are strong emitters of EUV and soft X-rays substantially in excess of the contribution from the hot intra-cluster medium at X-ray temperatures. After the initial discovery of EUV excess emission in the Virgo cluster,…

Astrophysics · Physics 2016-11-03 Max Bonamente , Richard Lieu
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