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 |
| Puragra Guhathakurta | Faculty | UC Santa Cruz |
| David Koo | Faculty | UC Santa Cruz |
| Nick Kaiser | Faculty | UH Manoa |
| Gerard Luppino | Faculty | UH Manoa |
| Peter Eisenhardt | Faculty | JPL |
| Andrew Connolly | Faculty | University of Pittsburgh |
| Andrew Phillips | Research Staff | UCSC |
| Greg Wirth | Research Staff | Keck Observatory |
| Jeffrey Newman | Faculty | University of Pittsburgh |
| Alison Coil | Hubble Fellow | University of Arizona |
| Darren Croton | Postdoc | UC Berkeley |
| Michael Cooper | Spitzer Fellow | University of Arizona |
| Brian Gerke | Postdoc | Stanford University |
| Renbin Yan | Postdoc | University of Toronto |
| Charlie Conroy | Former Undergraduate | UC Berkeley |
| Ricardo Schiavon | Research Staff | Gemini Observatory |
| Ben Weiner | Researcher | University of Arizona |
| Christopher Willmer | Researcher | University of Arizona |
| Jennifer Lotz | Postdoc | NOAO |
| Susan Kassin | Postdoc | UC Santa Cruz |
| Aaron Dutton | Postdoc | UC Santa Cruz |
| David Rosario | Postdoc | UC Santa Cruz |
| Anne Metevier | NSF Fellow | UC Santa Cruz |
| Kai Noeske | Postdoc | Harvard/SAO |
| Genevieve Graves | Grad Student | UC Santa Cruz |
| Nick Konidaris | Grad Student | UC Santa Cruz |
| Brian Lemaux | Grad Student | UC Davis |
| Lihwai Lin | Postdoc | National Taiwan University/UC Santa Cruz |
| Tela Favaloro | Undergraduate | UC Santa Cruz |
| Roger Griffith | Undergraduate | UC Berkeley |