interstellar absorption

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'interstellar absorption' can also refer to...

interstellar absorption

A reanalysis of interstellar OH absorption observations

Small-scale structure in the interstellar medium: time-varying interstellar absorption towards κ Velorum

Spatial and temporal variations in interstellar absorption towards HD 72127AB*

The interstellar extinction curve and the absorption spectra of two fulleranes

C-type shocks in the interstellar medium: profiles of CH+ and CH absorption lines

Absorption variability as a probe of the multiphase interstellar media surrounding active galaxies

The λ6614 diffuse interstellar absorption band: evidence for internal excitation of the carrier

Interstellar absorptions and shocked clouds towards the supernova remnant RX J0852.0-4622

Modelling the effect of absorption from the interstellar medium on transient black hole X-ray binaries

Detection of CaI and CH absorption at the velocity of the variable interstellar component towards κ Velorum

XMM–Newton/Reflection Grating Spectrometer detection of the missing interstellar O vii Kα absorption line in the spectrum of Cyg X-2

Calcium H&K and sodium D absorption induced by the interstellar and circumgalactic media of the Milky Way

Early-type stars observed in the ESO UVES Paranal Observatory Project – V. Time-variable interstellar absorption

Interstellar condensed (icy) amino acids and precursors: theoretical absorption and circular dichroism under UV and soft X-ray irradiation

The effect of interstellar absorption on measurements of the baryon acoustic peak in the Lyman α forest


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The absorption of starlight by dust and gas in the space between the stars; also known as interstellar extinction. The dust and gas are strongly concentrated towards the plane of our Galaxy. Interstellar absorption increases towards the shorter-wavelength (blue) end of the spectrum, and hence makes stars appear redder, so that the terms interstellar absorption and interstellar reddening are used almost interchangeably. As well as continuous absorption there are diffuse interstellar bands, such as that at 443 nm, due mostly to polycyclic aromatic hydrocarbons and other large carbon-bearing molecules. There are also atomic absorption lines such as the calcium H and K lines at 393 and 397 nm, the sodium D lines at 589.0 and 589.6 nm, and other weaker lines.

Subjects: Astronomy and Astrophysics.

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