MW67

1
Planned SIRTF Surveys
Area Deg2
5-s limiting flux, mJy (5-s limiting magnitude)
  limiting flux model dependent due to
predicted confusion - MIPS Real Deep Survey will
cover only 0.02 square degree - Locations of
Surveys as follows WIDE NOAO Deep Field DEEP
HDF-N, Groth Strip, CXO-S, SSA 13, Lockman
Hole, XMM Deep GOODS HDF-N, CXO-SREAL DEEP
Groth Strip FIRST LOOK North Ecliptic Pole
- GOODS Survey may go somewhat deeper in IRAC
bands over 0.02 sq degrees
2
What is the Role of Dust in Galaxy Formation?
Circles show positions of sub-millimeter (SCUBA)
sources without optical counterparts. These
sources are thought to have redshifts between 2
and 4 and may be dusty protogalaxies undergoing
an initial burst of star formation. SIRTF will
discover further examples, determine the
redshifts of these sources and study them in
detail
3
IRS Modules Provide DiagnosticCapability out to
High Redshift
IRS High-Res
IRS Low-Res
4
Arp220 at High Z
5
The Groth Strip Surveys by SIRTF and Others
6
Extragalactic Science in the Legacy Program
7
Anchor Points in the Local Universe (SINGS Team)
The Distant Universe
The Local Universe
Simulated galaxy spectrum (z1)
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History of Star FormationWhat is the Effect of
Dust?
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SIRTF Fills the Gap
10
Nested Survey Strategy/Lifting the Mass-Age
Degeneracy
Distance
(redshift)
6
GOODS
5
SINGS SWIRE Groth Strip (GTO) GOODS
4
Groth Strip
(GTO)
3
SWIRE
2
1
Survey Area
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Deep Survey Redshift Distribution at 70?m
(M. Rieke, MIPS)
12
Predicted Galaxy Number Counts In the Far
Infrared

( M. Rieke, MIPS)
Areal density at which MIPS is confused at 24?m
MIPS at 70?m
source density on the sky at which MIPS will
be confusion-limited (10 beams/source)
MIPS at 160?m
Plots from Tan et al.
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SIRTF Observations may Resolve the Infrared
Background at 160 ?m

• 160 micron
  simulated sky, observed at different resolutions

DIRBE 45 ISO
90 MIPS 45
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Influence of Resolution on Deep Far Infrared
Confusion-Limited Surveys
(H.Dole, MIPS)
Simulations of a 34 x 34 sky at 70
mm Extragalactic Sources 400.000 sources
between 1 mJy and 2 Jy (Dole H. et al 
astro-ph/0002283) Foreground Galactic Cirrus NH
1020 cm-2
IRAS resolution
ISOPHOT resolution
MIPS resolution
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Influence of Resolution on Deep Far Infrared
Confusion-Limited Surveys
(H. Dole, (H.Dole, MIPS) MIPS)
Simulations of a 34 x 34 sky at 160 mm ZOOM on
a 6.7  x 6.7 square Extragalactic Sources
600.000 sources between 1 mJy and 2 Jy (Dole H.
et al  astro-ph/0002283) Foreground Galactic
Cirrus NH 1020 cm-2
IRAS resolution
ISOPHOT resolution
MIPS resolution
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SIRTF and the Cosmic Infrared Background
( M. Rieke, MIPS)
estimated flux in galaxies to be detected by
MIPS, lower limit to total background
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Great Observatories Synergy(Provided by GOODS
team)
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Comparing HST and SIRTF (simulated) Images of the
HDF
GOODS Team
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SIRTF and the X-Ray Universe
(GOODS team)
SIRTF may detect redshifted embedded x-ray
sources Luminous Type 2 AGN without optical
counterparts. ? Limits to be reached by GOODS
Team in program of coordinated x-Ray/UV/Optical/SI
RTF imaging
CHANDRA long exposure
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SIRTFs Legacy to NGST(Provided by GOODS Team)