Abstract
R-band images of two z=1 quasars show faint (m = 21 — 22) galaxies close (2 — 3" or ≤ 10kpc) to the line of sight to the quasars. For one of the objects a galaxy with a huge (35˝ or 153 kpc radius) halo has been claimed to cause an absorption line in the quasar spectrum; however these observations show that the absorption may be due to galaxies much closer to the quasar, therefore not requiring huge halos. Since cases like these may easily be overlooked, not all huge galaxy halos may be real! These galaxies also amplify the quasars by gravitational lensing by factors of 1.2 to 2.
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References
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© 1995 Springer-Verlag Berlin Heidelberg
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Fried, J.W. (1995). Galaxies Close to the Line of Sight to two z=1 Quasars — Implications for Galactic Halos and Gravitational Lensing. In: Meylan, G. (eds) QSO Absorption Lines. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-49458-4_57
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DOI: https://doi.org/10.1007/978-3-540-49458-4_57
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