[Surveys -- Oral ]

Results from the AEGIS-X survey of the Extended Groth Strip

Elise Laird, Imperial College London
AEGIS-X team

The AEGIS-X survey is a 3.4Ms Chandra survey of the Extended Groth Strip (EGS) region, designed primarily for studying the co-evolution of black holes and their host galaxies. The original phase of the survey comprised of 8 contiguous ACIS-I pointings, each with nominal exposure 200ks, covering a total area of approximately 0.67 deg$\^{2}$ in a strip of length 2 degrees. A total of 1325 band-merged sources were detected to a Poisson probability limit of $4 \times 10\^{-6}$, with limiting fluxes of $5.3\times 10\^{-17}$ erg cm$\^{2}$ s$\^{-1}$ in the soft (0.5--2 keV) band and $3.8 \times 10\^{-16}$ erg cm$\^{-2}$ s$\^{-1}$ in the hard (2--10 keV) band. These observations cover a region with excellent supporting ground and space-based panchromatic data (e.g. GALEX, HST/ACS, CFHTLS, Spitzer/IRAC, Spitzer/MIPS, VLA) and $\sim$20 000 spectroscopic redshifts from the DEEP2 and DEEP3 surveys. The second phase of AEGIS-X has recently been completed and comprises of an additional 1.6Ms in the central 3 pointings in the strip, where the supporting data is strongest. I will present the first results from the new, deeper AEGIS-X survey as well as reviewing some of the key results from the survey to date. In particular I will focus on the optical spectral properties, environment, stellar mass function and morphology of the X-ray sources.