The Herschel Lensing Survey (HLS): Overview

E. Egami, M. Rex, T. D. Rawle, P. G. Pérez-González, J. Richard, J. P. Kneib, D. Schaerer, B. Altieri, I. Valtchanov, A. W. Blain, D. Fadda, M. Zemcov, J. J. Bock, F. Boone, C. R. Bridge, B. Clement, F. Combes, M. Dessauges-Zavadsky, C. D. Dowell, O. IlbertR. J. Ivison, M. Jauzac, D. Lutz, L. Metcalfe, A. Omont, R. Pelló, M. J. Pereira, G. H. Rieke, G. Rodighiero, I. Smail, G. P. Smith, G. Tramoy, G. L. Walth, P. Van Der Werf, M. W. Werner

Research output: Contribution to journalArticlepeer-review

88 Scopus citations


The Herschel Lensing Survey (HLS) will conduct deep PACS and SPIRE imaging of ~40 massive clusters of galaxies. The strong gravitational lensing power of these clusters will enable us to penetrate through the confusion noise, which sets the ultimate limit on our ability to probe the Universe with Herschel. Here we present an overview of our survey and a summary of the major results from our science demonstration phase (SDP) observations of the Bullet cluster (z = 0.297). The SDP data are rich and allow us to study not only the background high-redshift galaxies (e.g., strongly lensed and distorted galaxies at z = 2.8 and 3.2) but also the properties of cluster-member galaxies. Our preliminary analysis shows a great diversity of far-infrared/submillimeter spectral energy distributions (SEDs), indicating that we have much to learn with Herschel about the properties of galaxy SEDs. We have also detected the Sunyaev-Zel'dovich (SZ) effect increment with the SPIRE data. The success of this SDP program demonstrates the great potential of the Herschel Lensing Survey to produce exciting results in a variety of science areas.

Original languageEnglish (US)
Article numberL12
JournalAstronomy and astrophysics
Issue number7-8
StatePublished - Jul 16 2010


  • galaxies: clusters: general
  • galaxies: evolution
  • galaxies: high-redshift
  • infrared: galaxies
  • submillimeter: galaxies

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science


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