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Related papers: Deep GALEX Observations of the Coma Cluster: Sourc…

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We combine data from SDSS and the GALEX and Spitzer observatories to create a sample of galaxies observed homogeneously from the UV to the Far-IR. This sample, consisting of ~460 galaxies observed spectroscopically by SDSS provides a…

We investigate the Coma cluster galaxy luminosity function (GLF) at faint magnitudes, in particular in the u* band by applying photometric redshift techniques applied to deep u*, B, V, R, I images covering a region of ~1deg2 (R 24). Global…

Astrophysics · Physics 2009-11-13 C. Adami , O. Ilbert , R. Pello , J. C. Cuillandre , F. Durret , A. Mazure , J. P. Picat , M. P. Ulmer

The imaging Compton telescope COMPTEL aboard NASA's Compton Gamma-Ray Observatory has opened the MeV gamma-ray band as a new window to astronomy. COMPTEL provided the first complete all-sky survey in the energy range 0.75 to 30 MeV. The…

Astrophysics · Physics 2009-10-31 V. Schoenfelder , the COMPTEL Collaboration

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

The large-scale distribution of globular clusters in the central region of the Coma cluster of galaxies is derived through the analysis of Hubble Space Telescope/Advanced Camera for Surveys data. Data from three different HST observing…

Astrophysics of Galaxies · Physics 2018-11-30 Juan P. Madrid , Conor R. O'Neill , Alexander T. Gagliano , Joshua R. Marvil

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…

Cosmic photons can be efficiently collected by broadband intensity mapping but information on their emission redshift and frequency is largely lost. We introduce a technique to statistically recover these otherwise collapsed dimensions by…

Cosmology and Nongalactic Astrophysics · Physics 2019-06-12 Yi-Kuan Chiang , Brice Ménard , David Schiminovich

We constrain the assembly history of galaxies in the projected central 0.5 Mpc of the Coma cluster by performing structural decomposition on 69 massive (M_star >= 10^9 M_sun) galaxies using high-resolution F814W images from the HST Treasury…

Single-dish far-infrared (far-IR) and sub-millimetre (sub-mm) point source catalogues and their connections with catalogues at other wavelengths are of paramount importance. However, due to the large mismatch in spatial resolution,…

Context. The APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) is the first systematic survey of the inner Galactic plane in the sub-millimetre. The observations were carried out with the Large APEX Bolometer Camera (LABOCA), an…

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 the study of a large sample of early-type dwarf galaxies in the Coma cluster observed with DEIMOS on the Keck II to determine their internal velocity dispersion. We focus on a subsample of 41 member dwarf elliptical galaxies for…

Cosmology and Nongalactic Astrophysics · Physics 2012-03-15 E. Kourkchi , H. G. Khosroshahi , D. Carter , A. M. Karick , E. Mármol-Queraltó , K. Chiboucas , R. B. Tully , B. Mobasher , R. Guzmán , A. Matković , N. Gruel

Circumgalactic dust grains trace the circulation of mass and metals between star-forming regions and gaseous galactic halos, giving insight into feedback and tidal stripping processes. We perform a search for ultraviolet (UV) reflection…

Astrophysics of Galaxies · Physics 2024-08-23 Erin Boettcher , Edmund Hodges-Kluck

The first large sample of Lyman Break Galaxies (LBGs) at z~1 is selected from GALEX Far-UV and Near-UV images of the Chandra Deep Field South. This multi-wavelength study is based on the wealth of data available in this field: SPITZER-MIPS…

Astrophysics · Physics 2007-05-23 D. Burgarella , P. Perez-Gonzalez , V. Buat , T. T. Takeuchi , S. Lauger , G. Rieke , O. Ilbert , ;

This study employs stellar parameters from spectroscopic surveys and Zhang et al. based on Gaia XP spectra, along with photometric data from GALEX, UVOT, and Gaia, to obtain extensive ultraviolet color excess information for the relevant…

Astrophysics of Galaxies · Physics 2025-05-07 Dongliang Yang , Mingxu Sun , Biwei Jiang , Wenyuan Cui , Ruoyi Zhang , Luyao Shi , Jiachen Wei

We recently identified a population of low surface brightness objects in the field of the z=0.023 Coma cluster, using the Dragonfly Telephoto Array. Here we present Keck spectroscopy of one of the largest of these "ultra-diffuse galaxies"…

Ultra diffuse galaxies (UDGs) reveal extreme properties. Here we compile the largest study to date of 85 globular cluster (GC) systems around UDGs in the Coma cluster, using new deep ground-based imaging of the known UDGs and existing…

Astrophysics of Galaxies · Physics 2020-02-05 Duncan A. Forbes , Adebusola Alabi , Aaron J. Romanowsky , Jean P. Brodie , Nobuo Arimoto

We analyze the wavelength-dependent variability of a sample of spectroscopically confirmed active galactic nuclei (AGN) selected from near-UV ($NUV$) variable sources in the GALEX Time Domain Survey that have a large amplitude of optical…

High Energy Astrophysical Phenomena · Physics 2016-12-28 T. Hung , S. Gezari , D. O. Jones , R. P. Kirshner , R. Chornock , E. Berger , A. Rest , M. Huber , G. Narayan , D. Scolnic , C. Waters , R. Wainscoat , D. C. Martin , K. Forster , J. D. Neill

We present samples of starburst galaxies that represent the extremes discovered with infrared and ultraviolet observations, including 25 Markarian galaxies, 23 ultraviolet luminous galaxies discovered with GALEX, and the 50 starburst…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Lusine A. Sargsyan , Daniel W. Weedman , James R. Houck

Using the GALEX ultraviolet imagers we have observed a region of nebulosity first identified as starlight scattered by interstellar dust by Sandage (1976). Apart from airglow and zodiacal emission, we have found a diffuse UV background of…