Results 11 to 20 of about 41,478 (242)
Graphite and Interstellar Extinction [PDF]
International Astronomical Union Colloquium, 1965 The Theory That Graphite Particles could be responsible for interstellar extinction is presented in references 1 and 2, and this paper will present evidence that further supports this contention. The complex dielectric constant (m = n(l — ik) for graphite has been measured as a function of energy by the authors of reference 3, and the optical constants
T. P. Stecher, Bertram Donn
openaire +2 more sources
Quantifying interstellar extinction at high Galactic latitudes [PDF]
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT A detailed map of the distribution of dust at high Galactic latitudes is essential for future cosmic microwave background polarization experiments because the dust, while diffuse, remains a significant foreground in these regions.
Matthew O’Callaghan +2 more
openaire +3 more sources
Measurements of Interstellar Extinction [PDF]
Symposium - International Astronomical Union, 1989 The results of interstellar extinction measurements from the near IR to the far-UV are reviewed. The average interstellar extinction curve for the diffuse cloud medium exhibits a nearly linear rise (in 1/λ) from 1 μm−1 to the 2.25 μm−1 “knee” in extinction where the slope changes.
D. Massa, Blair D. Savage
openaire +2 more sources
Interstellar extinction and interstellar polarization: Old and new models [PDF]
Journal of Quantitative Spectroscopy and Radiative Transfer, 2012 The review contains an analysis of the observed and model curves of the interstellar extinction and polarization. The observations mainly give information on dust in diffuse and translucent interstellar clouds. The features of various dust grain models including spherical/non-spherical, homogeneous/inhomogeneous particles are discussed.
Н. В. Вощинников
openaire +4 more sources
Probing X-ray Absorption and Optical Extinction in the Interstellar Medium Using Chandra Observations of Supernova Remnants [PDF]
, 2016 We present a comprehensive study of interstellar X-ray extinction using the extensive Chandra supernova remnant archive and use our results to refine the empirical relation between the hydrogen column density and optical extinction.
Foight, Dillon +3 more
core +2 more sources
Interstellar extinction at 10-20 microns [PDF]
, 1989 The IRAS low-resolution spectra (LRS) spectra of 117 stars of excellent signal/noise with optically thin silicate dust shells were analyzed. The stellar continua (assumed to be a cool black body) were subtracted, and the resulting dust shell spectra were
Rubin, Robert H., Simpson, Janet P.
core +2 more sources
Grain growth, optical polarisation, and extinction in interstellar clouds [PDF]
, 1989 Increases in the wavelength of maximum polarization and the ratio of total to selective extinction are generally assumed to be the result of grain growth in interstellar clouds.
Jones, A. P.
core +2 more sources
Astrophysics, 2016 This review describes our current understanding of interstellar extinction. This differ substantially from the ideas of the 20th century. With infrared surveys of hundreds of millions of stars over the entire sky, such as 2MASS, SPITZER-IRAC, and WISE, we have looked at the densest and most rarefied regions of the interstellar medium at distances of a ...
openaire +2 more sources
Mid-Infrared Extinction and its Variation with Galactic Longitude [PDF]
, 2009 Based on the data obtained from the Spitzer/GLIPMSE Legacy Program and the 2MASS project, we derive the extinction in the four IRAC bands, [3.6], [4.5], [5.8] and [8.0] micron, relative to the 2MASS Ks band (at 2.16 micron) for 131 GLIPMSE fields along ...
Aigen Li +42 more
core +2 more sources
The Astrophysical Journal Supplement Series, 2022 We have obtained accurate dust reddening from the far-ultraviolet to the mid-infrared for up to 5 million stars by the star-pair algorithm based on LAMOST stellar parameters along with Galaxy Evolution Explorer, Pan-STARRS 1, Gaia, Sloan Digital Sky ...
Ruoyi Zhang, Haibo Yuan
doaj +1 more source