Multifrequency observations of the quasi-stellar object Ton 1542

Details Multifrequency observations of the quasi-stellar object Ton 1542 Multifrequency observations of the quasi-stellar object Ton 1542

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..699w&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 96, Sept. 1984, p. 699-704. Research supported by the G

Astronomy and Astrophysics

Astronomy

2

Astronomical Spectroscopy, Quasars, Radio Emission, Ultraviolet Astronomy, Balmer Series, H Lines, Iue

Scientific paper

The authors present single-epoch multifrequency data for the radio-quiet low-redshift QSO Ton 1542, spanning radio through ultraviolet wavelengths. They measure a 3σ upper limit of 9.2 mJy for the 20.3 GHz flux density. The first ultraviolet spectrum of this object is presented and discussed. The authors find a particularly strong excess of flux density at ≡3000 Å, which is likely to be dominated by Balmer continuum emission. They also find a Lα/Hβ flux ratio of ≡17, which is higher than that usually observed in QSOs.

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