Results 1 to 10 of about 1,811,071 (203)

Interstellar X-Ray Absorption and Scattering

open access: yesThe Astrophysical Journal
Accurate estimates of the absorption of X-rays by interstellar gas and dust are of crucial importance for the analysis and interpretation of almost all astronomical soft X-ray observations.
Linli Yan, Aigen Li, Fangjun Lu
doaj   +3 more sources

Interstellar Absorption and Dust Scattering

open access: yes, 2023
Invited chapter for the "handbook of X-ray and Gamma-ray Astrophysics" (Eds. C. Bambi and A. Santangelo, Springer Singapore, 2022).
Elisa Costantini
exaly   +4 more sources

INTERSTELLAR ABSORPTION IN SOME DIRECTIONS

open access: yesOdessa Astronomical Publications, 2017
Interstellar absorption has been investigated towards Captain Areas KA-64, KA-65, KA-86, KA-87, KA- 88, KA-98 by the method of a colour excess. The star magnitudes V and colour indexes (B-V) of stars were received by Yasinskaya et al.
M. P. Yasinskaya, A. V. Dragunova
doaj   +3 more sources

On the Absorption of X‐Rays in the Interstellar Medium

open access: yesAstrophysical Journal, 2000
ApJ, in press, for associated software see http://astro.uni-tuebingen.de/nh/
Joern Wilms
exaly   +3 more sources

Variations of Interstellar Ultra-Violet Absorption [PDF]

open access: yesSymposium - International Astronomical Union, 1973
It is shown that mixtures of graphite core-ice mantle grains with large and small mean size and graphite grains provide good fits to the observed interstellar extinction curve.
SYÛZO Isobe
exaly   +2 more sources

A reanalysis of interstellar OH absorption observations [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1996
We reconsider the rotational analysis of the absorption electronic A-X and D-X band systems of OH and show that interstellar observations of OH in front of bright stars have been interpreted with oscillator strengths that are too small by a factor of 2.
Roueff E
exaly   +2 more sources

A survey of ultraviolet interstellar absorption lines

open access: yesThe Astrophysical Journal Supplement Series, 1983
A telescope-spectrometer on the Copernicus spacecraft made possible the measurement of many ultraviolet absorption lines produced by the interstellar gas. The present survey provides data on ultraviolet absorption lines in the spectra of 88 early-type stars.
R. Bohlin   +6 more
semanticscholar   +2 more sources

SPECTROPHOTOMETRIC MEASURES OF INTERSTELLAR LIGHT ABSORPTION [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1930
R. Trumpler
semanticscholar   +2 more sources

Detection of PAH Absorption and Determination of the Mid-infrared Diffuse Interstellar Extinction Curve from the Sight Line toward Cyg OB2-12 [PDF]

open access: yesAstrophysical Journal, 2020
The sight line toward the luminous blue hypergiant Cyg OB2-12 is widely used to study interstellar dust on account of its large extinction (AV ≃ 10 mag) and the fact that this extinction appears to be dominated by dust typical of the diffuse interstellar
B. Hensley, B. Draine
semanticscholar   +1 more source

INTERSTELLAR MEDIUM AND DECAMETER RADIO SPECTROSCOPY [PDF]

open access: yesRadio Physics and Radio Astronomy, 2021
Purpose: The analytical review of the main results of research in the new direction of the low-frequency radio astronomy, the interstellar medium radio spectroscopy at decameter waves, which had led to astrophysical discovery, recording of the radio ...
S. V. Stepkin   +3 more
doaj   +1 more source

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