The interstellar 2200A feature

Details The interstellar 2200A feature The interstellar 2200A feature

Sep 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987qjras..28..284c&link_type=abstract

Royal Astronomical Society, Quarterly Journal (ISSN 0035-8738), vol. 28, Sept. 1987, p. 284-288.

Astronomy and Astrophysics

Astronomy

Charge Transfer, Hydrogen, Interstellar Extinction, Metal Ions, Neutral Gases, Ultraviolet Spectra, Astronomical Models, Iron, Magnesium, Silicon

Scientific paper

The cause of the interstellar 2200 Å feature is still unknown, over 20 years after its discovery. The feature varies independently of the rest of the extinction curve implying that a different physical mechanism is at work. The suggestion is made here that the 2200 Å feature might be caused by charge transfer between neutral hydrogen and singly ionized iron, silicon and magnesium.

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