Two blue arcs associated with the cD galaxy of Abell 963

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185168· OSTI ID:6921104

Lavery, R J; Henry, J P

Two blue arcs associated with the cD galaxy in Abell 963 have been found. They are different in physical length, angle subtended, and distance from the nucleus of the cD, are on opposite sides of the cD galaxy, and both arcs appear concentric about the nucleus. The arcs are patchy and extremely blue, having colors bluer than the bluest members of the Abell 963 cluster. The cD galaxy is highly elliptical, epsilon roughly 0.5, with one, possibly both arcs, being bisected by the major axis of the cD. It is suggested that the most likely mechanism for the origin of the arcs is gravitational lensing of a high-redshift galaxy by the cD galaxy and the associated cluster core. 23 references.

• Research Organization: Hawaii Univ., Honolulu (USA); Mount Stromlo and Siding Spring Observatories, Canberra (Australia)
• OSTI ID: 6921104
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 329; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
640106 -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COLOR
CONFIGURATION
ELLIPTICAL CONFIGURATION
GALAXIES
GALAXY CLUSTERS
GALAXY NUCLEI
GRAVITATIONAL LENSES
LENSES
MATHEMATICAL MODELS
MORPHOLOGY
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
ORIGIN
PHYSICAL PROPERTIES