B2114+022: A gravitational lens and/or what?

• Tipo: Artigo em Livro de Atas de Conferência Internacional
• Data: 2001

Autores

Augusto, P (Autor) Outra; Browne, IWA (Autor) Outra; Wilkinson, PN (Autor) Outra; Jackson, N (Autor) Outra; Fassnacht, CD (Autor) Outra

Ata de Conferência Internacional

Título: GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS

Páginas: 75-76

Conference on Gravitational Lensing - Recent Progress and Future Goals

BOSTON, MA, JUL 25-30, 1999

Indexação

ISI Web of Knowledge - 0 Citações

Outras Informações

ID Authenticus: P-000-Y2T

Abstract (EN): B2114+022 is an on-going seven years old mystery. A unique object among the about 15000 radio sources of JVAS+CLASS, it has had extensive data collected over the years: VLA, MERLIN, VLBI, Keck and HST, among other. Its radio structure consists of four radio components (two compact and two extended; the widest separation is 2."5) in a configuration unlike that of any known lens system. No optical counterparts of any of these radio loud components are seen down to H = 23 mag or I = 25 mag, although two galaxies with I less than or equal to 21 mag (z = 0.3157 and z = 0.5883) are seen in the field. Astrometric measurements suggest that these are close to three of the four radio components. Heavy optical extinction is ruled out for the farthest component. Hypothesis for what might be going on in this puzzling system include two-screen gravitational lensing and multiple active galactic nuclei.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 2