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Shedding Light on Dark Energy

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Shedding Light on Dark Energy

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    1. Shedding Light on Dark Energy

    2. Outline Introduction Cosmological Framework Early Signs of Dark Energy The Discovery of Dark Energy What is Dark Energy? Probing Dark Energy Dark Energy Projects Summary

    32. The Dark Energy Survey A study of the dark energy using four independent and complementary techniques Galaxy cluster surveys Galaxy power spectrum (BAO) Weak lensing SNe Ia distances Two linked, multi-band optical surveys (~24 - 25 mag) 5000 deg2 g, r, i and z (Z & Y) Repeated observations of 40 deg2 (J,H,Ks from VISTA) Instrument and schedule New 3 deg2 camera on the Blanco 4m on Cerro Tololo (Chile) Construction: 2004-2010 Survey Operations: 30% of telescope time over 5 years

    35. SPT Survey Region SPT will survey all the extragalactic sky south of declination d = 30 This corresponds to approximately 4000 deg2 of reasonably clean sky north of d = 75 20hr < a < 7hr This region is easily observable with the Blanco 4m on Cerro Tololo DES will provides redshifts for SZE clusters

    36. DES Instrument Design

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