SIMBAD references

2008AJ....135..520O - Astron. J., 135, 520-526 (2008/February-0)

Discovery of four gravitationally lensed quasars from the Sloan Digital Sky Survey.

OGURI M., INADA N., CLOCCHIATTI A., KAYO I., SHIN M.-S., HENNAWI J.F., STRAUSS M.A., MOROKUMA T., SCHNEIDER D.P. and YORK D.G.

Abstract (from CDS):

We present the discovery of four gravitationally lensed quasars selected from the spectroscopic quasar catalog of the Sloan Digital Sky Survey (SDSS). We describe imaging and spectroscopic follow-up observations that support the lensing interpretation of the following four quasars: SDSS J0832+0404 (image separation θ = 198, source redshift zs=1.115, lens redshift zl=0.659); SDSS J1216+3529 (θ=149, zs=2.012); SDSS J1322+1052 (θ=200, zs=1.716); and SDSS J1524+4409 (θ=167, zs=1.210, zl=0.320). Each system has two lensed images. We find that the fainter image component of SDSS J0832+0404 is significantly redder than the brighter component, perhaps because of differential reddening by the lensing galaxy. The lens potential of SDSS J1216+3529 might be complicated by the presence of a secondary galaxy near the main lensing galaxy.

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Journal keyword(s): gravitational lensing - quasars: general

Nomenclature: Table 2, Fig.2: [OIC2008] J0832+0404 A (Nos A-B, G). Table 3, Fig.5: [OIC2008] J1216+3529 AN (Nos A-B, G1-G2). Table 4, Fig.7: [OIC2008] J1322+1052 A (Nos A-B, G). Table 5, Fig.9: [OIC2008] J1524+4409 A (Nos A-B, G).

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Simbad objects: 10

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