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207th AAS Meeting Washington D.C., 8-13 January 2005 1 The Spitzer SWIRE Legacy Program Spitzer Wide-Area Infrared Extragalactic Survey Mari Polletta (UCSD)

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Presentation on theme: "207th AAS Meeting Washington D.C., 8-13 January 2005 1 The Spitzer SWIRE Legacy Program Spitzer Wide-Area Infrared Extragalactic Survey Mari Polletta (UCSD)"— Presentation transcript:

1 207th AAS Meeting Washington D.C., 8-13 January The Spitzer SWIRE Legacy Program Spitzer Wide-Area Infrared Extragalactic Survey Mari Polletta (UCSD) & the SWIRE Team On behalf of the PI: Carol Lonsdale Support for this work was provided by NASA Contract 1407

2 207th AAS Meeting Washington D.C., 8-13 January Exploring the Wide Universe... how wide? ELAIS-N1 9 deg 2 ELAIS-N2 4 deg 2 Lockman-Hole 11 deg 2 CDFS 8 deg 2 XMM-LSS 9 deg 2 ELAIS-S1 7 deg 2 49 deg 2 MOON  2 Million Galaxies up to z=3 & hundreds of 100 Mpc scale cells

3 207th AAS Meeting Washington D.C., 8-13 January SWIRE finds high-z ULIRGs: Starbursts & AGN IRAC convex spectral shape  Starlight IRAC red power-law  AGN

4 207th AAS Meeting Washington D.C., 8-13 January Ultra-luminous & Massive Starbursts at high-z Bright sub-mm (1.2mm; MAMBO) fluxes (~5mJy) confirm extreme IR luminosities (Omont/Lonsdale et al., in prep) M  stellar masses (Berta et al. 2005) See also Posters: High-z ULIRGs in the SWIRE Survey Lonsdale et al Far-IR SEDs of ULIRGs in the SWIRE Survey Shupe et al.

5 207th AAS Meeting Washington D.C., 8-13 January SWIRE AGN studies Type 1 AGN Type 2 AGN Normal galaxy SED study of X-ray sources in ELAIS-N1 (Franceschini et al. 2005, AJ, 129, 2074) IR properties of type 1 QSO from SDSS (Hatziminauglou et al. 2005, AJ, 129, 1198) High-z (z>3) type 1 QSO luminosity function (Siana et al. 2005, PhD Thesis) See also Posters: The Chandra/SWIRE Medium- depth X-ray Survey B. Wilkes et al Third degree examination of AGN in the Chandra/SWIRE Survey M. Polletta et al. See also Posters: Statistical and physical infrared properties of AGN as measured by SWIRE (E. Hatziminaoglou et al.) Heavily obscured (Compton-thick) AGN in the Chandra/SWIRE Survey (Polletta et al. 2006, ApJ accepted)

6 207th AAS Meeting Washington D.C., 8-13 January SWIRE on galaxy evolution SWIRE is able to probe the luminous end of the LFs (rare objects), across a wide redshift range (z<2). ● Weak evolution at 3.6 and 4.5 μm similar to evolution in K band (Pozzetti et al. 2003) ● Stronger evolution at longer wavelengths (mid-IR) (Babbedge et al. 2006, in prep. & Onyett et al. 2006, in prep.) Photometric z (Rowan-Robinson et al. 2005, AJ, 129, 1183) See also Posters : VVDS-SWIRE: 3780 galaxies with redshifts 0.1 to 3 (Le Fevre et al.) VVDS Redshift of 24 Microns SWIRE Sources (Le Brun et al.) VVDS-SWIRE evolution of the rest frame K-band LF from z=1.5 (Arnouts et al.) Lockman-Hole, ELAIS-N1 and ELAIS-N2

7 207th AAS Meeting Washington D.C., 8-13 January Large Scale Structure studies T wo clusters of galaxies at z = separated by ~6.5 arcmin (~2Mpc h=0.7) (Valtchanov et al., in prep.) XMM (45 ksec) [0.5-2] keV 30’ diameter ELAIS-N1 ● XMM-LSS discovery of a z=1.22 galaxy cluster (Bremer et al., submitted) ● IR (K-3.6 μm) red selected clusters at z~1 (Waddington et al., in prep.) ● Highly significant measurements of clustering of 3.6μm- selected galaxies (Waddington et al., in prep) ● Consistent with deep (but small) K-band surveys and with simple stable clustering models (Oliver et al. 2004) ● Current semi-analytic models, e.g. GalICS, agree with data but are limited by the small area and have a too high mass limit (Waddington et al.) GalICS 3.6μm angular correlation function

8 207th AAS Meeting Washington D.C., 8-13 January SWIRE traces large scale structures in the far-IR ● F ield-to-field variations up to a factor of 2 ● 10-20% dispersion at faint fluxes and larger at bright fluxes due to local structure (e.g., ELAIS-N2) (Alfonso-Luis et al., in prep.) ● Large-scale structure has been measured in all Spitzer MIPS channels covering all SWIRE fields. ● Significant multi-fractal behavior in all channels. (Fang et al., in prep.) (see Poster 63.49) ● Tentative evidence for strong clustering of 24μm-selected (U)LIRGs at z=0.6 (SWIRE/VVDS spectroscopic survey) and z=1-2 (photometric selection) => massive halos (Oliver et al., Farrah/Lonsdale et al., in prep) ● Counts-in-cells distributions consistent with a gravitational quasi- equilibrium distribution function (Masci et al., in press) Mid- and far-IR sources counts (Shupe et al., in prep.) and models (Berta et al., Rowan-Robinson et al., Xu et al., in prep)

9 207th AAS Meeting Washington D.C., 8-13 January 2005 SWIRE investigates star-formation activity in nearby galaxies See also Poster Morphological studies of SWIRE galaxies in the UGC ACS field (Perez-Fournon et al.; Hatziminaoglou et al. 2005, MNRAS, 364, 47) IR properties of blue and red optical sequence galaxies (Davoodi et al., in prep.) Disk+ Nucleus HST g IRAC 3.6μm MIPS 24μm Quiescent nucleus Active Star-forming regions Red sequence Blue sequence Disk and off-nuclear Starburst activity in the Tadpole Galaxy (Jarrett et al., 2006, AJ, 131, 261) Images: U g r i μm

10 207th AAS Meeting Washington D.C., 8-13 January 2005 GALEX: Star-formation and dust extinction in local and z=0.6 galaxies (D. Schiminovich et al., Xu et al.) GOODS: Mid vs Far-IR in star-forming galaxies Poster (Monkiewicz et al.) SHADES: SEDs of Sub-mm galaxies (Clements et al., in prep.) ATLAS: Radio sources in CDFS Poster (Norris et al., in prep.) MAMBO observations of SWIRE ULIRGs (Omont et al., in prep) Clusters of Galaxies at 1

11 207th AAS Meeting Washington D.C., 8-13 January Summary Tens of thousands of ULIRGs & HLIRGs and very massive (M  >10 11 M  ) star- forming galaxies at z>1-2 IR properties of AGN (unobscured and obscured) up to z<4 Evidence for the existence of Compton-thick AGN (>25 deg -2 ) Strong galaxy evolution in the mid-IR (24 μm) Clustering detected in all Spitzer bands and for a variety of samples Found clusters at z=1-2 Mid-IR source counts variations amongst the fields Star-forming activity in nearby galaxies, a case study: the Tadpole Optical red-sequence galaxies explained by old stellar populations or obscured starburst activity

12 207th AAS Meeting Washington D.C., 8-13 January SWIRE Posters ULIRGs LSS AGN Galaxy evolution Brown Dwarfs & stars SWIRE Data High Redshift ULIRGs in the SWIRE Survey C. J. Lonsdale et al Far-Infrared Spectral Energy Distributions of ULIRGs in the SWIRE Survey D.L. Shupe et al Galaxy clustering in far-infrared SWIRE fields F. Fang et al The Chandra/SWIRE Medium-depth X-ray Survey B. Wilkes et al Third degree examination of AGN in the Chandra/SWIRE Survey M. Polletta et al Statistical and physical infrared properties of AGN as measured by SWIRE E. Hatziminaoglou et al VVDS-SWIRE: 3780 galaxies with redshifts 0.1 to 3 O. Le Fevre et al VVDS Redshift of 24 Microns SWIRE Sources V. Le Brun et al VVDS-SWIRE evolution of the rest frame K-band LF from z=1.5 S. Arnouts et al Morphological studies of SWIRE galaxies in the UGC ACS field I. Perez-Fournon et al Preliminary Results of the Spitzer SWIRE Brown Dwarf Survey D. L. Padgett et al Stellar Objects with Infrared Excess in SWIRE F. Y. Morales et al Data Processing and Validation of the SWIRE Survey J.A. Surace et al Spitzer Data at the NASA/IPAC Infrared Science Archive (IRSA) G.B. Berriman et al.


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