Data

Data from : SKY-SURF: Panchromatic constraints on the Extragalactic Background Light and Zodical Light sources through all-sky foreground measurements

The University of Western Australia
Windhorst, Rogier A. ; Ryan, Russell E. ; Arendt, Richard G. ; Casertano, Stefano ; Cohen, Seth H. ; Driver, Simon ; Dwekg, Eli ; Grogin, Norman ; Jansen, Rolf A. ; Kashlinsky, Alexander ; Kenyon, Scott J. ; Koekemoer, Anton M. ; MacKenty, John W. ; Pirzkal, Norbert ; Robotham, Aaron
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More than 95% of all photons in the HST Archive come from <5 AU. Yet, no precise panchromatic all-sky HST measurement of foregrounds exists. Project SKY-SURF will use HST's unique capability as absolute photometer to measure the absolute 0.2-1.7 micron all-sky surface brightness (SB) from 57,302 ACS and WFC3 datasets in 1100 fields. This Legacy dataset will constrain the diffuse UV-nearIR sky components: Zodiacal Light (ZL; inner solar system), Kuiper Belt Objects (KBOs; outer solar system), Diffuse Galactic Light (DGL), and Extragalactic Background Light (EBL). SKY-SURF will: (1) construct optimized panchromatic object catalogs, and an all-sky model of the (time-dependent) ZL, plus the DGL at 10 deg resolution in the UV,U,B,V,r,i,z,Y,J,H filters free of discrete objects; (2) determine the integrated EBL to <3% by measuring panchromatic galaxy counts over 1100 HST fields, averaging over cosmic-variance effects on the EBL, as most of the EBL comes from 18-25 mag galaxies. We will use SKY-SURF's panchromatic ZL+DGL model to: (3) help recalibrate the direct EBL measurements to <4%; (4) assess how much DIFFUSE EBL can exist beyond the (extrapolated) discrete galaxy counts: Intra-galaxy Halo Light, Intra-Group Light, Intra-Cluster Light, etc.; (5) constrain the count-slope of very faint KBOs and grains in the outer solar system at R>28 mag, sampling their size-distribution from 1 km-0.1 mm; constrain the KBO flux-integral as a small excess on top of the Zodi foreground around Ecliptic latitude b_Ecl 0. (6) release to MAST panchromatic legacy products: optimized object catalogs, absolutely calibrated sky-SB data, and models of the ZL(t), DGL, and EBL.

Notes

External Organisations
University of Maryland, Baltimore; Arizona State University; Science Systems and Applications, Inc.; Smithsonian Institution; Space Telescope Science Institute; University of Arizona; Johns Hopkins University; National Aeronautics and Space Administration
Associated Persons
Rogier A. Windhorst (Creator); Russell E. Ryan (Creator); Richard G. Arendt (Creator); Stefano Casertano (Creator); Seth H. Cohen (Creator); Eli Dwekg (Creator); Norman Grogin (Creator); Rolf A. Jansen (Creator); Alexander Kashlinsky (Creator); Scott J. Kenyon (Creator); Anton M. Koekemoer (Creator); John W. MacKenty (Creator); Norbert Pirzkal (Creator)

Issued: 2019-06

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Other Information
SKY-SURF: Panchromatic constraints on the Extragalactic Background Light and Zodical Light sources through all-sky foreground measurements: HST Proposal

url : http://research-repository.uwa.edu.au/en/publications/cffdbf5e-115b-40b7-a142-13dbe523da58

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Identifiers
  • global : 0578863e-e7c9-4d47-98c6-65766712b9ad