English
Related papers

Related papers: The Diffuse Galactic Far-Ultraviolet Sky

200 papers

We report the first observations of far-ultraviolet (FUV: 1000 -- 1150 \AA) diffuse radiation from the Small Magellanic Cloud (SMC) using observations from the {\em Far Ultraviolet Spectroscopic Explorer (FUSE)}. The strength of FUV diffuse…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Ananta C. Pradhan , Jayant Murthy , Amit Pathak

We investigate the amount and spatial distribution of interstellar dust in edge-on spiral galaxies, using detailed radiative transfer modeling of a homogeneous sample of 12 galaxies selected from the CALIFA survey. Our automated fitting…

We present surface photometry of a sample of 52 galaxies from the GALEX and 2MASS data archives, these include 32 normal elliptical galaxies, 10 ellipticals with weak Liner or other nuclear activity, and 10 star forming ellipticals or…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-27 David Carter , Sally Pass , Joseph Kennedy , Arna M. Karick , Russell J. Smith

We report the analysis results of far ultraviolet (FUV) observations, made for a broad region around $\alpha$ Vir (Spica) including the interaction zone of Loop I and the Local Bubble. The whole region was optically thin and a general…

Astrophysics of Galaxies · Physics 2015-06-16 Yeon-Ju Choi , Kyoung-Wook Min , Kwang-Il Seon , Tae-Ho Lim , Young-Soo Jo , Jae-Woo Park

Interstellar dust at high Galactic latitudes can influence astronomical foreground subtraction, produce diffuse scattered light, and soften the ultraviolet spectra of quasars. In a sample of 94 sight lines toward quasars at high latitude…

Astrophysics of Galaxies · Physics 2023-11-21 J. Michael Shull , Georgia V. Panopoulou

Based on the slopes between DESI $g,r$ and IRAS 100 $\mu m$ intensities, specifically $k_{g}$ and $k_{r}$, we have constructed a substantial sample of Galactic cirri. This sample covers 561.25 deg$^2$ at high Galactic latitudes (|b| $\geq$…

Astrophysics of Galaxies · Physics 2025-02-06 Yunning Zhao , Wei Zhang , Lin Ma , Shiming Wen , Hong Wu

We use a newly assembled large sample of 3,545 star-forming galaxies with secure spectroscopic, grism, and photometric redshifts at z=1.5-2.5 to constrain the relationship between UV slope (beta) and dust attenuation (L(IR)/L(UV)=IRX). Our…

We compile a new sample of 115 nearby, non-Seyfert galaxies spanning a wide range of star formation activities, from starburst to nearly dormant, based on ultraviolet (UV) observations with various satellites. We combine these observations…

Astrophysics · Physics 2009-11-10 X. Kong , S. Charlot , J. Brinchmann , S. M. Fall

We present results from a GALEX ultraviolet (UV) survey of a complete sample of 390 galaxies within ~11 Mpc of the Milky Way. The UV data are a key component of the composite Local Volume Legacy (LVL), an ultraviolet-to-infrared imaging…

We present results of the first unbiased search for extended UV (XUV)-disk galaxies undertaken to determine the space density of such galaxies. Our sample contains 561 local (0.001 < z < 0.05) galaxies that lie in the intersection of…

The attenuation of starlight by interstellar dust is investigated in a sample of low redshift, disk-dominated star-forming galaxies using photometry from GALEX and SDSS. By considering broadband colors as a function of galaxy inclination we…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-18 Charlie Conroy , David Schiminovich , Michael R. Blanton

The relation between the ratio of infrared (IR) and ultraviolet (UV) flux densities (the infrared excess: IRX) and the slope of the UV spectrum (\beta) of galaxies plays a fundamental role in the evaluation of the dust attenuation of star…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Tsutomu T. Takeuchi , Fang-Ting Yuan , Akira Ikeyama , Katsuhiro L. Murata , Akio K. Inoue

Cross-correlation of the DIRBE 100 micron survey with previously published H-alpha maps tests correlations between far-infrared dust and the warm ionized interstellar medium in different regions of the sky. A 10 x 12 deg patch at Galactic…

Astrophysics · Physics 2009-10-30 A. Kogut

Hubble Space Telescope observations with Wide Field Camera 3/IR reveal that galaxies at z~7 have very blue ultraviolet (UV) colors, consistent with these systems being dominated by young stellar populations with moderate or little…

Astrophysics of Galaxies · Physics 2015-06-16 Taysun Kimm , Renyue Cen

Extinction in ultraviolet is much more significant than in optical or infrared, which can be very informative to precisely measure the extinction and understand the dust properties in the low extinction areas. The high Galactic latitude sky…

Astrophysics of Galaxies · Physics 2021-06-23 Mingxu Sun , Biwei Jiang , Haibo Yuan , Jun Li

For the first time we have combined dispersion measures and emission measures towards 38 pulsars at KNOWN distances from which we derived the mean electron density in clouds, N_c, and their volume filling factor, F_v, averaged along the…

Astrophysics · Physics 2009-11-13 Elly M. Berkhuijsen , Peter Mueller

We present the Bayesian Global Sky Model (B-GSM), a new absolutely calibrated model of the diffuse Galactic foreground at frequencies below 408 MHz. We assemble a dataset of publicly available diffuse emission maps at frequencies between 45…

Instrumentation and Methods for Astrophysics · Physics 2025-04-08 George Carter , Will Handley , Mark Ashdown , Nima Razavi-Ghods

The first Herschel Hi-Gal images of the galactic plane unveil the far-infrared diffuse emission of the interstellar medium with an unprecedented angular resolution and sensitivity. In this paper, we present the first analysis of these data…

Astrophysics of Galaxies · Physics 2015-05-20 M. Compiegne , N. Flagey , A. Noriega-Crespo , P. G. Martin , J. -P. Bernard , R. Paladini , S. Molinari

Variations in the attenuation law have a significant impact on observed spectral energy distributions for galaxies. As one important observational property for galaxies at ultraviolet and infrared wavelength bands, the correlation between…

Astrophysics of Galaxies · Physics 2014-06-20 Ye-Wei Mao , Xu Kong , Lin Lin
‹ Prev 1 4 5 6 7 8 10 Next ›