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

• Type: Article in International Conference Proceedings Book
• Date: 2001

Authors

Augusto, P (Author) Other; Browne, IWA (Author) Other; Wilkinson, PN (Author) Other; Jackson, N (Author) Other; Fassnacht, CD (Author) Other

Conference proceedings International

Title: GRAVITATIONAL LENSING: RECENT PROGRESS AND FUTURE GOALS

Pages: 75-76

Conference on Gravitational Lensing - Recent Progress and Future Goals

BOSTON, MA, JUL 25-30, 1999

Indexing

ISI Web of Knowledge - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2