Results 71 to 80 of about 451,275 (174)

On the Interstellar Extinction Curve toward HD 93222, a Sight Line with an Exceedingly Narrow 2175 Å Extinction Bump

The Astrophysical Journal
The 2175 Å extinction bump, the most prominent spectral feature superimposed on the interstellar extinction curve, is widely seen in the interstellar medium of the Milky Way and external galaxies, both near and far.
Qian Wang, Aigen Li, X. J. Yang
doaj   +1 more source

Extinction curves, extinction laws, and the failure of interstellar dust models

Astronomy & Astrophysics
The interpretation of ultraviolet Galactic interstellar extinction curves is obscured today by accumulated assumptions, such as a purported link between the 2200 Å bump and metallicity, that are not firmly supported by observations.
Zagury Frédéric
doaj   +1 more source

Interstellar Dust Grain Alignment [PDF]

, 2018
Dust induced polarization is an efficient probe of the interstellar magnetic field. The combination of short wavelength dichroic extinction polarimetry with far-infrared/sub-mm wave emission observations, using modern instruments, allow us to measure the
Andersson, B.-G.
core  

Swift Ultraviolet Observations of Supernova 2014J in M82: Large Extinction from Interstellar Dust [PDF]

, 2015
We present optical and ultraviolet (UV) photometry and spectra of the very nearby and highly reddened supernova (SN) 2014J in M82 obtained with the Swift Ultra-Violet/Optical Telescope (UVOT).
Kuin, N. Paul, Smitka, Michael T., Siegel, Michael, Krisciunas, K, Krisciunas, Kevin, Wang, Lifan, de Pasquale, Massimiliano, Milne, PA, Pasquale, MD, Hartmann, DH, de Pasquale, Massımılıano, Breeveld, A, Wang, L, Brown, PJ, Smitka, MT, Hartmann, Dieter H., Brown, Peter J., Page, Mat, Page, M, Breeveld, Alice, Kuin, NPM, Siegel, M, Milne, Peter A., Siegel, M., Wang, L., De Pasquale, M., Smitka, M. T., Page, M., Breeveld, A., Kuin, N. P., Brown, P. J., Hartmann, D. H., Krisciunas, K., Milne, P. A.   +33 more
core   +1 more source

Correlations between Dust Extinction Features across All Wavelength Scales: From Diffuse Interstellar Bands to R(V)

The Astrophysical Journal
Understanding variations in the dust extinction curve is imperative for using dust as a tracer of local structure in the interstellar medium, understanding dust chemistry, and performing extinction corrections.
Andrew K. Saydjari, Gregory M. Green
doaj   +1 more source

The End of the Road for Far-infrared Reddening Maps? Evidence for Reddening Errors Driven by Changes in Polycyclic Aromatic Hydrocarbon Abundance

The Astrophysical Journal
Accurate correction for extinction by Galactic dust is essential for studying the extragalactic sky. In the low-extinction regions of the Ursa Major molecular cloud complex, we demonstrate that Galactic dust reddening maps constructed from observations ...
Dennis Lee, Brandon S. Hensley, Tzu-Ching Chang, Olivier Doré   +3 more
doaj   +1 more source

Observational constraints on interstellar dust models [PDF]

, 1989
No single model has been able to account for all of the observed spectroscopic properties of interstellar or circumstellar dust. The reason for this is that, despite the agreement that the grains are composed of silicaceous/metal oxide and carbonaceous ...
Hackwell, James A., Russell, Ray W., Hecht, James H.   +2 more
core  

Large Variations Seen in First Ultraviolet Spectroscopic M33 Dust Extinction Curves

The Astrophysical Journal
Dust extinction curves provide one of the main avenues to understanding the detailed nature of dust grains and accounting for the effects of dust on observations of many astrophysical objects. For the first time, spectroscopic ultraviolet (UV) extinction
Karl D. Gordon, Petia Yanchulova Merica-Jones, Geoffrey C. Clayton, Ralph Bohlin, Marjorie Decleir, Claire E. Murray, Luciana Bianchi   +6 more
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Abstracts

Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley   +1 more source

On Predicting the Polarization of Low Frequency Emission by Diffuse Interstellar Dust

, 2007
Several of the current and next-generation cosmic microwave background (CMB) experiments have polarimetric capability, promising to add to the finesse of precision cosmology.
P.G. Martin
core   +1 more source