Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· References in the article
· Citations to the Article (53) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
A test for transverse motions of clusters of galaxies
Authors:
Birkinshaw, M.; Gull, S. F.
Affiliation:
AA(Mullard Radio Astronomy Observatory, Cambridge, England), AB(Mullard Radio Astronomy Observatory, Cambridge, England)
Publication:
Nature, vol. 302, Mar. 24, 1983, p. 315-317. (Nature Homepage)
Publication Date:
03/1983
Category:
Astronomy
Origin:
STI
NASA/STI Keywords:
BRIGHTNESS DISTRIBUTION, GALACTIC CLUSTERS, GRAVITATIONAL LENSES, VELOCITY MEASUREMENT, BACKGROUND RADIATION, DYNAMIC CHARACTERISTICS, MICROWAVES
DOI:
10.1038/302315a0
Bibliographic Code:
1983Natur.302..315B

Abstract

The two-sided brightness pattern of a gravitationally lens dual-image is shown to hold information on the transverse velocity of the lens. The radiation passing one side of the lens is shown to gain brightness, while the opposite holds true on the other side of the lens. The magnitude of the effect is quantified, and the transverse velocity of a moving lens is demonstrated to be available by considering the fractional changes in photon energy produced by an encounter with the lens. Detectors with limits near 0.1 mK sensitivity are necessary for registering the projected changes.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints