The DEEP survey is a two-phased project using the
Keck telescopes to study the distant Universe. Phase 1 used the LRIS
spectrograph to study a sample of ~1000 galaxies to a limit of I=24.5.
This project was executed by the UCSC team and is a pilot program for
the phase 2 effort. Phase 2 of the DEEP project is using the new
DEIMOS
spectrograph to obtain spectra of ~50,000 faint galaxies with redshifts
z > 0.7. The scientific goals are to study the
evolution of properties of galaxies and the evolution of the
clustering of galaxies compared to samples at low redshift.
The survey is designed to have the fidelity of local redshift surveys
such as the
LCRS
survey, and to be complementary to ongoing large redshift surveys such as
the SDSS project and the
2dF survey.
The DEIMOS/DEEP or DEEP2 survey has been executed with resolution of
R ~ 5000, and we measure linewidths and rotation curves for a
substantial fraction of the target galaxies. DEEP2 will thus also
be complementary to the
VLT/VIRMOS Deep Survey,
which will survey more galaxies in a larger region of the sky but with
much lower spectral resolution and with fewer objects at high redshift.
This major survey is a collaboration between astronomers at UC Berkeley,
UC Santa Cruz, and the University of Hawaii. Faculty engaged in the survey
include Marc Davis (PI), Sandra Faber (PI of DEIMOS), David
Koo, Raja Guhathakurta, Nick Kaiser, and Ger Luppino.
The project includes many collaborators from outside of the Keck community,
including Andy Connolly and Alex Szalay.
Instrument
DEIMOS spectrograph on Keck II
Fields
Four, each 120' by 30'
Field Centers:
14 17, +52 30
Groth Survey Strip region
(field to be 120'x15', no color cuts used)
16 52, +34 55
Zone of very low extinction
23 30, +00 00
On SDSS deep strip
02 30, +00 00
On SDSS deep strip
Principal Redshift Range
0.75 < z < 1.4, preselected using BRI photometry
Grating and Spectra
1200 l/mm, 6500-9100Å useable range
[O II] 3727Å visible for 0.77 < z < 1.42
Resolution
1"" slits, FWHM = ~68 km/s at z = 1
Total Nights
80 (UC LMAP allocation)
Useable Months
April - October
Start/End date
Spring 2002 / Summer 2005
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| Number of Target Galaxies |
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| Number of Redshifts |
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| Number of Keck Nights |
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| Exposure time |
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| Magnitude Range |
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| % Sampled to Magnitude limit |
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| % Redshift Success |
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| % Linewidth Success |
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DEEP2 Members | ||
| Name | Position | Location |
| Marc Davis | Faculty | UC Berkeley |
| Sandra Faber | Faculty | UC Santa Cruz |
| Jeffrey Newman | Faculty | University of Pittsburgh |
| Michael Cooper | Faculty | UC Irvine/CGE |
| Puragra Guhathakurta | Faculty | UC Santa Cruz |
| David Koo | Faculty | UC Santa Cruz |
| Andrew Phillips | Research Staff | UCSC |
| Alison Coil | Faculty | UC San Diego |
| Nick Kaiser | Faculty | UH Manoa |
| Gerard Luppino | Faculty | UH Manoa |
| Andrew Connolly | Faculty | University of Washington |
| Greg Wirth | Research Staff | Keck Observatory |
| Andrew Connolly | Faculty | University of Washington |
| Doug Finkbeiner | Faculty | Harvard |
| Brian Gerke | Research Staff | LBNL |
| Renbin Yan | Faculty | Kentucky |
| Charlie Conroy | Faculty | UCSC |
| Ricardo Schiavon | Research Staff | Gemini Observatory |
| Ben Weiner | Research Staff | University of Arizona |
| Christopher Willmer | Research Staff | University of Arizona |
| Jennifer Lotz | Staff Scientist | STScI |
| Kamson Lai | Postdoc | UC Santa Cruz |
| Susan Kassin | Postdoc | GSFC |
| Aaron Dutton | Postdoc | MPIA |
| David Rosario | Postdoc | MPE |
| Anne Metevier | Faculty | Sonoma State |
| Justin Harker | Postdoc | UC Santa Cruz |
| Kai Noeske | Staff Scientist | STScI |
| Nick Konidaris | Postdoc | Caltech |
| Brian Lemaux | Postdoc | OAMP |
| Lihwai Lin | Research Staff | ASIAA Academica Sinica |