Extragalactic abstracts - IRSA - California Institute of Technology
Extragalactic abstracts - IRSA - California Institute of Technology
Extragalactic abstracts - IRSA - California Institute of Technology
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Spitzer_Approved_<strong>Extragalactic</strong><br />
Mar 25, 10 16:24 Page 361/742<br />
Spitzer Space Telescope − Legacy General Observer Proposal #50249<br />
Ultra−Deep MIPS Imaging <strong>of</strong> the Lockman Hole<br />
Principal Investigator: Eiichi Egami<br />
Institution: Steward Observatory, University <strong>of</strong> Arizona<br />
Technical Contact: Eiichi Egami, Steward Observatory, University <strong>of</strong> Arizona<br />
Co−Investigators:<br />
James Bock, JPL/Caltech<br />
Herve Dole, IAS, Paris<br />
James Dunlop, ROE, Edingburgh<br />
David Elbaz, CEA, Saclay<br />
Guenther Hasinger, MPE. Munich<br />
Rob Ivison, ROE, Edingburgh<br />
Guilaine Lagache, IAS, Paris<br />
Dieter Lutz, MPE, Munich<br />
Delphine Marcillac, University <strong>of</strong> Arizona<br />
Seb Oliver, University <strong>of</strong> Sussex<br />
Casey Papovich, University <strong>of</strong> Arizona<br />
Jean−Loup Puget, IAS, Paris<br />
George Rieke, University <strong>of</strong> Arizona<br />
Manolis Rovilos, MPE, Munich<br />
Benjamin Weiner, University <strong>of</strong> Arizona<br />
Christopher Willmer, University <strong>of</strong> Arizona<br />
Science Category: cosmology<br />
Observing Modes: MipsScan MipsTp<br />
Hours Approved: 101.7<br />
Abstract:<br />
The Lockman Hole is the region on the sky with the lowest HI column density,<br />
which translates into the lowest X−ray absorption, lowest dust extinction, and<br />
lowest infrared cirrus emission. This makes the Lockman Hole the cosmic window<br />
through which the deepest and cleanest images <strong>of</strong> the Universe can be obtained at<br />
a variety <strong>of</strong> wavelengths. Because <strong>of</strong> this, it has been the prime target for many<br />
deep surveys in the past, and therefore <strong>of</strong>fers superb data sets, especially in<br />
the X−ray, submm, and radio. Despite all these advantages the Lockman Hole<br />
<strong>of</strong>fers, it has not been imaged with MIPS to the depth comparable to those <strong>of</strong><br />
GOODS/HDF−N, GOODS/CDF−S, and EGS. Considering that Spitzer is nearing the end<br />
<strong>of</strong> its cryogenic mission, we believe that it is extremely important to conduct<br />
equally deep MIPS imaging <strong>of</strong> the Lockman Hole in Cycle 5. Ultra−deep MIPS<br />
imaging <strong>of</strong> the Lockman Hole is especially crucial for Herschel, which will<br />
obtain deep 24’x24’ images <strong>of</strong> the Lockman Hole at 100, 160, 250, 350, and 500<br />
um as part <strong>of</strong> the Guaranteed time programs. Here, we propose to obtain<br />
confusion−limited MIPS maps <strong>of</strong> the Lockman Hole as an essential part <strong>of</strong> the<br />
Spitzer legacy. Such ultra−deep MIPS maps will nicely complement the Herschel<br />
data in the near future. A new and innovative aspect <strong>of</strong> this proposed program is<br />
the attempt to perform absolute calibration <strong>of</strong> the ultra−deep MIPS maps with<br />
carefully designed Total Power Mode observations. Such observations, attempted<br />
for the first time here with MIPS, will allow us to characterize the properties<br />
<strong>of</strong> the cosmic infrared background with a much improved accuracy and precision.<br />
The ultra−deep maps will also have powerful applications in determining the<br />
spectral energy distributions <strong>of</strong> high−redshift infrared galaxies, and in<br />
studying the properties <strong>of</strong> active galactic nuclei with strong obscuration in the<br />
X−ray.<br />
Spitzer_Approved_<strong>Extragalactic</strong><br />
Printed_by_SSC<br />
Mar 25, 10 16:24 Page 362/742<br />
Spitzer Space Telescope − Guaranteed Time Observer Proposal #30478<br />
The Evolution <strong>of</strong> Galaxy Dark Matter and Stellar Mass to z = 1.2 : IRAC Imaging<br />
<strong>of</strong> the Deep Lens Survey Field F2<br />
Principal Investigator: Giovanni Fazio<br />
Institution: Harvard−Smithsonian Astrophysical Observatory<br />
Technical Contact: Gillian Wilson, Caltech<br />
Co−Investigators:<br />
Jiasheng Huang, Harvard Smithsonian Center for Astrophysics<br />
Mark Lacy, SSC / Caltech<br />
Jason Surace, SSC / Caltech<br />
Gillian Wilson, <strong>California</strong> <strong>Institute</strong> <strong>of</strong> <strong>Technology</strong><br />
Science Category: Cosmology<br />
Observing Modes: IracMap<br />
Hours Approved: 34.5<br />
Abstract:<br />
We propose to image 4 square degrees with IRAC (to 120s depth) to carry out a<br />
unique project to directly compare the stellar mass content <strong>of</strong> galaxies with the<br />
masses <strong>of</strong> their dark halos. The IRAC observations will complement a parallel<br />
ground−based weak lensing analysis <strong>of</strong> the same field, currently being undertaken<br />
by the Deep Lens Survey (DLS) team. The proposed field is one <strong>of</strong> five fields<br />
comprising the ultradeep BVRz’ 20 square degree DLS survey. We will<br />
photometrically (and spectroscopically) subdivide galaxies by redshift,<br />
luminosity and morphological type, measure average dark matter halos from the<br />
full 20 square degrees and average stellar mass for galaxies <strong>of</strong> the same type<br />
from the 4 square degree field. This dataset will allow us to study the<br />
evolution <strong>of</strong> baryons relative to the dark matter to z = 1.2<br />
Thursday March 25, 2010 xgal_covers.txt<br />
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