GOODS Redshift surveys of galaxies on GOODS fields - PowerPoint PPT Presentation

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GOODS Redshift surveys of galaxies on GOODS fields

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DEIMOS Deep Imaging Multi-Object Spectrograph. ... Spectrograph, the largest spectroscopic detector of its type: Advanced optics ... – PowerPoint PPT presentation

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Title: GOODS Redshift surveys of galaxies on GOODS fields


1
GOODS Redshift surveys of galaxies on GOODS
fields
Maret Einasto GOODS seminar 20 21. aprill,
Tartu Observatoorium
2
Deep samples 70ies Local Supercluster, z lt
0.04 1994 Abell clusters and superclusters, z lt
0.12 1998 LCRS, z lt 0.2 2002 SDSS, z lt
0.2 2004 GOODS, z lt 2 (!)
GOODS
SDSS
Abell clusters
LCRS
3
GOODS Redshifts ground-based telescopes
The Team Keck Redshift Survey of the GOODS-
North Field (Wirth et al. 2004,
0401353) Spectroscopic redshifts in the ACS-GOODS
region of the HDF-N (Cowie et al. 2004,
0401354) VIMOS VLT Deep Survey redshifts in the
CDFS (Le Fevre et al. 2004, 0403628)
4
DEIMOS at Keck
DEIMOS Deep Imaging Multi-Object
Spectrograph. Keck II 10m telescope double-beam
(optical and infrared) Spectrograph, the largest
spectroscopic detector of its type Advanced
optics Detector 8 CCDs (2000x4000 pixels) A
slitmask system, 140 galaxies at the same
time Software suite for setup, alignment and data
reduction
Deimos spectra small group of
galaxies Colors, magnitudes, redshifts Linewidths
(rotational velocities), metallicity, star
formation rate, -gt properties of galaxies at
various redshifs
5
The Team Keck Redshift Survey of the GOODS-
North Field (Wirth et al. 2004, 0401353)
http//www2.keck.hawaii.edu/science/tksurvey/
1536 redshifts R 24.3 completeness 60
individual spectra for all objects available
TKRS Total Knee Replacement Surgery
6
ACS 43
ACS X 6165.6 ACS Y 2088.0 RA
123611.664 DEC 621318.25 Rmag 24.06
z 1.38133 TKRS Nr. 3227 Mosaic X
2027.6 Mosaic Y 1157.0
CXO
ACS F435W
ACS F606W
ACS F850 LP
ACS F755W
DEIMOS 1D spectrum FITS
DEIMOS R
7
Spectroscopic redshifts in the the HDF-N
region (Cowie et al. 2004, 0401354) 787 spectra,
R lt 24.5, B lt 25, or z lt 24) DEIMOS and LRIS
(Low Resolution Imaging) Spectrographs Completenes
s 60 90 AGN signatures? http//www.ifa.hawaii.
edu/users/cowie/hhdt/acs_tables.html
8
VIMOS at ESO VLT
VIMOS spectrograph at Melipal 8.2 m telescope
Wide-Field imaging (14x16) MOS spectroscopy
(up to 650 slits) Wavelength accuracy better than
1 Å
9
VVDS VIMOS VLT Deep Survey redshifts in the
CDFS (Le Fevre et al. 2004, 0403628)
I lt 24 mag, 1599 redshifts Area 21x21.6
arcmin Completeness 88
Slit masks EIS photometric catalog (ESO Imaging
Survey) Mask Manufacturing Unit at ESO Paranal
10
VVDS completeness and I magnitude distribution
The magnitude distribution of galaxies with
secure redshift measurements, uncertain and
failed measurements (open, dashed, filled
histograms). The ratio of secure and all
measurements.
I magnitude distribution of VVDS objects compared
to the distribution of all objects in the area
of EIS photometric Catalog (filled and open
histogram)
11
VVDS redshift distribution of galaxies and
absolute magnitude redshift distribution
12
Data ID, coordinates, magnitudes, redshift,
HST-GOODS images, Vimos VLT spectrum, 1599
objects
13
Galaxy systems in TKRS
Z 0.45
Z 0.47
Z 0.48
14
Journey into the HDF_North
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