Results 11 to 20 of about 408,744 (292)

Interstellar Silicon Depletion and the Ultraviolet Extinction [PDF]

The Astrophysical Journal, 2017
Abstract Spinning small silicate grains were recently invoked to account for the Galactic foreground anomalous microwave emission. These grains, if present, will absorb starlight in the far-ultraviolet (UV).
Ajay Mishra, Aigen Li
core   +5 more sources

Ultraviolet Extinction Properties in the Milky Way [PDF]

The Astrophysical Journal, 2004
We have assembled a homogeneous database of 417 ultraviolet (UV) extinction curves for reddened sightlines having International Ultraviolet Explorer (IUE) spectra. We have combined these with optical and 2MASS photometry allowing estimates of the ratio of total-to-selective extinction, R(V), for the entire sample. Fitzpatrick-Massa (FM) parameters have
Valencic, Lynne A., Clayton, Geoffrey C., Gordon, Karl D.   +2 more
openaire   +4 more sources

Ultraviolet Interstellar Extinction toward High Galactic Latitudes

The Astrophysical Journal
Nearby high Galactic latitude clouds provide a unique laboratory to study the physics and structure of the Galactic interstellar medium and the properties of the interstellar dust.
Ajay Mishra, Aigen Li
doaj   +2 more sources

Ultraviolet Passbands for a Space Multicolor Photometric System

Open Astronomy, 2003
The results of search for the optimal location of ultraviolet passbands for an extra-atmospheric photometric system are given. The addition of passbands near the well-known extinction bump at 218 nm to the photometric system makes it possible to ...
Ambartsoumian A. R., Mironov A. V., Zakharov A. I.   +2 more
doaj   +3 more sources

Expanded Sample of Small Magellanic Cloud Ultraviolet Dust Extinction Curves: Correlations between the 2175 Å Bump, q PAH, Ultraviolet Extinction Shape, and N(H i)/A(V)

The Astrophysical Journal
The Small Magellanic Cloud (SMC) shows a large variation in ultraviolet (UV) dust extinction curves, ranging from Milky Way (MW) like to significantly steeper curves with no detectable 2175 Å bump.
Karl D. Gordon, E. L. Fitzpatrick, Derck Massa, Ralph Bohlin, Jérémy Chastenet, Claire E. Murray, Geoffrey C. Clayton, Daniel J. Lennon, Karl A. Misselt, Karin Sandstrom   +9 more
doaj   +2 more sources

Extinction towards the cluster R136 in the Large Magellanic Cloud: An extinction law from the near-infrared to the ultraviolet [PDF]

, 2023
The cluster R136 in the giant star-forming region 30 Doradus in the Large Magellanic Cloud (LMC) offers a unique opportunity to resolve a stellar population in a starburst-like environment. We obtain the near-infrared to ultraviolet extinction towards 50
Brands, Sarah A., Gräfener, Götz, Bestenlehner, Joachim M., Alex de Koter, Saida M. Caballero-Nieves, Caballero-Nieves, S.M., de Koter, Alex, Brands, S.A., Kaper, Lex, Bestenlehner, J.M., Kaper, L., Paul A. Crowther, Caballero-Nieves, Saida M., Sarah A. Brands, Joachim M. Bestenlehner, Crowther, Paul A., Lex Kaper, Götz Gräfener, de Koter, A., Gräfener, G., Crowther, P.A., Graefener, Goetz   +21 more
core   +1 more source

ULTRAVIOLET EXTINCTION AT HIGH GALACTIC LATITUDES [PDF]

The Astrophysical Journal, 2013
12 pages, 10 figures, Accepted to the ...
Peek, J. E. G., Schiminovich, David
openaire   +2 more sources

The Ultraviolet Extinction in the GALEX Bands

The Astrophysical Journal, 2018
Abstract Interstellar extinction in ultraviolet is the most severe in comparison with optical and infrared wavebands and a precise determination plays an important role in correctly recovering the ultraviolet brightness and colors of objects.
Mingxu Sun, B. W. Jiang, He Zhao, Jian Gao, Shuang Gao, Mingjie Jian, Haibo Yuan   +6 more
openaire   +2 more sources

»Hope dies – Action begins« [PDF]

, 2019
"Hope dies - action begins" - this is the motto of the new global environmental movement "Extinction Rebellion" (XR). XR wants to make us all aware of finally taking radical measures against the gigantic species extinction and climate catastrophe.
Extinction Rebellion Hannover,
core   +1 more source

PROBING THE ROLE OF CARBON IN THE INTERSTELLAR ULTRAVIOLET EXTINCTION [PDF]

The Astrophysical Journal, 2015
We probe the role of carbon in the ultraviolet (UV) extinction by examining the relations between the amount of carbon required to be locked up in dust [C/H]_dust with the 2175 Angstrom extinction bump and the far-UV extinction rise, based on an analysis of the extinction curves along 16 Galactic sightlines for which the gas-phase carbon abundance is ...
Mishra, Ajay, Li, Aigen
openaire   +2 more sources