A Probablez ∼ 7 Galaxy Strongly Lensed by the Rich Cluster A2218: Exploring the Dark Ages | Zendy

JeanPaul Kneib | Zendy; Richard S. Ellis | Zendy; Michael R. Santos | Zendy; Johan Richard | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

A Probablez ∼ 7 Galaxy Strongly Lensed by the Rich Cluster A2218: Exploring the Dark Ages

Author(s) -

JeanPaul Kneib,

Richard S. Ellis,

Michael R. Santos,

Johan Richard

Publication year - 2004

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/386281

Subject(s) - physics , astrophysics , redshift , galaxy , astronomy , star formation , photometry (optics) , reionization , photometric redshift , spectral energy distribution , weak gravitational lensing , stars

We discuss the observational properties of a remarkably faint triply-imagedgalaxy revealed in a deep z-band ACS observation of the lensing cluster A2218.A well-constrained mass model for the cluster, which incorporates the outcomeof recent Keck spectroscopic campaigns, suggests that the triple system arisesvia a z>6 source viewed at high magnification (~x25). Optical and IR photometryfrom HST and Keck confirms the lensing hypothesis and suggests a significantdiscontinuity occurs in the spectral energy distribution within 9250-9850A. Ifthis break is associated with Gunn-Peterson absorption from neutralhydrogen,6.6

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research