Paschen-alpha in 3C 273

Details Paschen-alpha in 3C 273 Paschen-alpha in 3C 273

Aug 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...208l..11g&link_type=abstract

Astrophysical Journal, vol. 208, Aug. 15, 1976, pt. 2, p. L11, L12.

Astronomy and Astrophysics

Astrophysics

38

Astronomical Spectroscopy, Infrared Spectra, Paschen Series, Quasars, Balmer Series, Emission Spectra, H Beta Line, Interstellar Extinction, Spectrum Analysis

Scientific paper

Paschen-alpha has been detected as an emission line in the 2-micron
spectrum of the quasi-stellar object 3C 273. The observed ratio of I(H
beta)/I(Paschen-alpha) indicates that the line-emitting region in 3C 273
is only lightly reddened. The steep Balmer decrement in 3C 273 is
apparently an intrinsic property of the spectrum.

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