Star Formation at z ~ 6: The Hubble Ultra Deep Parallel Fields | Zendy

R. J. Bouwens | Zendy; G. D. Illingworth | Zendy; Rodger I. Thompson | Zendy; John P. Blakeslee | Zendy; Mark Dickinson | Zendy; Tom Broadhurst | Zendy; Daniel J. Eisenstein | Zendy; Xiaohui Fan | Zendy; Marijn Franx | Zendy; G. R. Meurer | Zendy; Pieter van Dokkum | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Star Formation at z ~ 6: The Hubble Ultra Deep Parallel Fields

Author(s) -

R. J. Bouwens,

G. D. Illingworth,

Rodger I. Thompson,

John P. Blakeslee,

Mark Dickinson,

Tom Broadhurst,

Daniel J. Eisenstein,

Xiaohui Fan,

Marijn Franx,

G. R. Meurer,

Pieter van Dokkum

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 - 10.1086/421016

Subject(s) - redshift , cosmic variance , physics , astrophysics , hubble deep field , scaling , hubble ultra deep field , luminosity function , luminosity , star formation , galaxy , mathematics , geometry

We report on the i-dropouts detected in two exceptionally deep ACS fields(B_{435}, V_{606}, i_{775}, and z_{850} with 10 sigma limits of 28.8, 29.0,28.5, and 27.8, respectively) taken in parallel with the UDF NICMOSobservations. Using an i-z>1.4 cut, we find 30 i-dropouts over 21 arcmin^2 downto z_AB=28.1, or 1.4 i-dropouts arcmin^{-2}, with significant field-to-fieldvariation (as expected from cosmic variance). This extends i-dropout searchessome ~0.9^m further down the luminosity function than was possible in the GOODSfield, netting a ~7x increase in surface density. An estimate of the sizeevolution for UV bright objects is obtained by comparing the composite radialflux profile of the bright i-dropouts (z<27.2) with scaled versions of theHDF-N + HDF-S U-dropouts. The best-fit is found with a (1+z)^{-1.57_{-0.53}^{+0.50}} scaling in size (for fixed luminosity), extending lower redshift(1

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