Images and spectra of the host galaxy of the QSO Markarian 1014

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Astronomical Photography, Galactic Nuclei, Quasars, Absorption Spectra, Charge Coupled Devices, Early Stars, Galactic Radiation, Late Stars, Spectral Line Width

Scientific paper

Images and spectra of the extended luminous material associated with the low-redshift QSO Markarian 1014 are presented. Stellar absorption lines indicative of an admixture of early- and late-type stars are present at the same redshift as that of the QSO nucleus. The distribution of the luminous material is highly asymmetric, appears spiral-like, and on a deep CCD image, its total extent is about 90 kpc. Markarian 1014 is one of the most striking examples yet found of a galaxy with a fairly luminous QSO nucleus. The large extent and asymmetry of the stellar distribution and the spectroscopic evidence for a recent burst of star formation point to a large-scale perturbation of the galaxy, perhaps the result of a recent interaction or merger.

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