2237 + 0305 - a new and unusual gravitational lens

Journal Article · Wed May 01 00:00:00 EDT 1985 · Astron. J.; (United States)

DOI:https://doi.org/10.1086/113777· OSTI ID:5562457

Huchra, J; Gorenstein, M; Kent, S; Shapiro, I; Smith, G; Horine, E; Perley, R

A new gravitational lens system has been discovered which consists of a quasar at z = 1.695 nearly centered on a 15-mag spiral galaxy, 2237 + 0305, at z = 0.0394. At 2 arcsec resolution, only a single optical image of the quasar is visible; its centroid is located within approximately 0.3 arcsec of the center of the galaxy. Snapshot observations at the VLA yielded no detectable radio radiation, placing an upper limit of about 0.5 mJy on the combined flux density of the galaxy and quasar at a wavelength of 6 cm. A simple gravitational lens model that accounts for these observations is discussed. 17 references.

• Research Organization: Harvard-Smithsonian Center for Astrophysics, Cambridge, MA
• OSTI ID: 5562457
• Journal Information: Astron. J.; (United States), Vol. 90
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GRAVITATIONAL LENSES
MATHEMATICAL MODELS
ABSORPTION SPECTRA
EMISSION SPECTRA
FLUX DENSITY
GALAXIES
LYMAN LINES
MORPHOLOGY
QUASARS
RADIOASTRONOMY
RED SHIFT
SPIRAL CONFIGURATION
ASTRONOMY
CONFIGURATION
COSMIC RADIO SOURCES
LENSES
SPECTRA
640106* - Astrophysics & Cosmology- Cosmology