SIMBAD references

2018ApJ...852L...7E - Astrophys. J., 852, L7-L7 (2018/January-1)

Thirty-fold: extreme gravitational lensing of a quiescent galaxy at z = 1.6.

EBELING H., STOCKMANN M., RICHARD J., ZABL J., BRAMMER G., TOFT S. and MAN A.

Abstract (from CDS):

We report the discovery of eMACSJ1341-QG-1, a quiescent galaxy at z = 1.594 located behind the massive galaxy cluster eMACSJ1341.9-2442 (z = 0.835). The system was identified as a gravitationally lensed triple image in Hubble Space Telescope images obtained as part of a snapshot survey of the most X-ray luminous galaxy clusters at z > 0.5 and spectroscopically confirmed in ground-based follow-up observations with the ESO/X-Shooter spectrograph. From the constraints provided by the triple image, we derive a first, crude model of the mass distribution of the cluster lens, which predicts a gravitational amplification of a factor of ∼30 for the primary image and a factor of ∼6 for the remaining two images of the source, making eMACSJ1341-QG-1 by far the most strongly amplified quiescent galaxy discovered to date. Our discovery underlines the power of SNAPshot observations of massive, X-ray selected galaxy clusters for lensing-assisted studies of faint background populations.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): galaxies: clusters: individual: (eMACSJ1341.9-2442) - galaxies: evolution - galaxies: stellar content - gravitational lensing: strong - gravitational lensing: strong

Status at CDS:   being processed
// Examining the need for a new acronym.

Simbad objects: 4

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2020.03.31-01:31:27

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