Bubble space telescope observations of the gravitational lens system B1422+231

C. D. Impey, C. B. Foltz, C. E. Petry, I. W.A. Browne, A. R. Patnaik

Research output: Contribution to journalArticlepeer-review

45 Scopus citations

Abstract

Hubble Space Telescope observations of the gravitational lens system B1422+231 are presented. The spectra of the four components are virtually identical, although there are differences among the Lyα emission-line equivalent widths that might be due to microlensing. There are also significant differences between the component flux density ratios measured at radio and optical wavelengths. High-resolution imaging reveals the lens close to the faintest quasar image. The lens has photometric properties consistent with an elliptical galaxy at z ∼ 0.4. The addition of new constraints to simple lensing models affirms the B1422+231 system as a suitable tool for an eventual direct measure of the Hubble constant.

Original languageEnglish (US)
Pages (from-to)L53-L57
JournalAstrophysical Journal
Volume462
Issue number2 PART II
StatePublished - Jan 1 1996

Keywords

  • Gravitational lensing

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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