UV-TO-FIR ANALYSIS OF SPITZER /IRAC SOURCES IN THE EXTENDED GROTH STRIP. I. MULTI-WAVELENGTH PHOTOMETRY AND SPECTRAL ENERGY DISTRIBUTIONS

Abstract

We present an IRAC 3.6+4.5 µm selected catalog in the Extended Groth Strip (EGS) containing photometry from the ultraviolet to the far-infrared and stellar parameters derived from the analysis of the multi-wavelength data. In this paper, we describe the method used to build coherent spectral energy distributions (SEDs) for all the sources. In a companion paper, we analyze those SEDs to obtain robust estimations of stellar parameters such as photometric redshifts, stellar masses, and star formation rates. The catalog comprises 76,936 sources with [3.6]≤23.75 mag (85% completeness level of the IRAC survey in the EGS) over 0.48 deg 2 . For approximately 16% of this sample, we are able to deconvolve the IRAC data to obtain robust fluxes for the multiple counterparts found in groundbased optical images. Typically, the SEDs of the IRAC sources in our catalog count with more than 15 photometric data points, spanning from the ultraviolet wavelengths probed by GALEX to the farinfrared observed by Spitzer, and going through ground-and space-based optical and near-infrared data taken with 2-8 meter class telescopes. Approximately 95% and 90% of all IRAC sources are detected in the deepest optical and near-infrared bands. These fractions are reduced to 85% and 70% for SNR>5 detections in each band. Only 10% of the sources in the catalog have optical spectroscopy and redshift estimations. Almost 20% and 2% of the sources are detected by MIPS at 24 and 70 µm, respectively. We also cross-correlate our catalog with public X-ray and radio catalogs. Finally, we present the Rainbow Navigator public web-interface utility, designed to browse all the data products resulting from this work, including images, spectra, photometry, and stellar parameters.

EVIDENCE FOR UBIQUITOUS COLLIMATED GALACTIC-SCALE OUTFLOWS ALONG THE STAR-FORMING SEQUENCE ATz∼ 0.5

“…Both the MOIRCS Deep Survey and FIREWORKS also include Spitzer/ IRAC and MIPS photometry from the Spitzer Space Telescope Legacy Program (Dickinson et al 2003). In the EGS, we use the catalogs published in Barro et al (2011), which incorporate u-band and optical photometry from the CFHTLS, 7 near-IR photometry from Bundy et al (2006), 4 bands of IRAC imaging from Barmby et al (2008), and MIPS 24 μm imaging from the MIPS GTO and FIDEL surveys. In addition, we use NUV fluxes from the source catalog of the GALEX public data release GR6 in each of our fields.…”

“…Specifically, for galaxies in the GOODS-N field, we use ground-based U-band photometry, b 435 v 606 i 775 z 850 , and JHK s measurements provided by the MOIRCS Deep Survey (Kajisawa et al 2011). For galaxies in the EGS, we use ground-based ugriz and J, K, and K s photometry from Barro et al (2011), and for galaxies in the GOODS-S field we use U 38 BVRI photometry, z 850 measurements, and VLT/ISAAC JK s …”

“…In the EGS, we use photometry from catalogs published in Barro et al (2011). These catalogs incorporate GALEX NUV photometry available from GR3, ugriz photometry from the CFHTLS, 14 MMT/Megacam u -band photometry, CFHT-12k B and I-band photometry, HST/ACS v 606 photometry, J-, K-, and K s -band near-IR photometry from Palomar/ WIRC (Bundy et al 2006) and Subaru/MOIRCS, 4 bands of IRAC imaging from Barmby et al (2008), and MIPS 24 μm imaging from the MIPS GTO and FIDEL surveys.…”

“…These catalogs incorporate GALEX NUV photometry available from GR3, ugriz photometry from the CFHTLS, 14 MMT/Megacam u -band photometry, CFHT-12k B and I-band photometry, HST/ACS v 606 photometry, J-, K-, and K s -band near-IR photometry from Palomar/ WIRC (Bundy et al 2006) and Subaru/MOIRCS, 4 bands of IRAC imaging from Barmby et al (2008), and MIPS 24 μm imaging from the MIPS GTO and FIDEL surveys. Photometry from additional optical and NIR pass bands are provided by Barro et al (2011), but we do not make use of them here. Photometry was measured in a fixed Kron elliptical aperture in 14 www.cfht.hawaii.edu/Science/CFHTLS-DATA/ all bands.…”

CANDELS Multi-wavelength Catalogs: Source Identification and Photometry in the CANDELS Extended Groth Strip

“…A number of multi-wavelength photometric catalogs have been produced in the EGS field, (Bundy et al 2006;Ilbert et al 2006;Barro et al 2011a;Whitaker et al 2011 andSkelton et al 2014). This section compares the CANDELS multi-wavelength photometry to the three publicly available catalogs that have a broad wavelength coverage and include the IRAC bands.…”