COSMOS

COSMOS( Cosmic Evolution Survey )

Field

• 2 square degree, 最大的深场
• equatorial, for easy access to telescopes in both hemispheres

RA (J2000) = 10:00:28.6
DEC (J2000) = +02:12:21.0

Photometry

• HST ACS (IAB > 27 mag )
• WFC3 NIR
• UltraVISTA (YJHKs,Halpha(z=0.8_
• XMM-Newton
• Chandra
• GALEX
• CFHT
• Subaru
• Spitzer
• Hersechel (sub-millimeter)
• AzTEC, MAMBO (millimeter)
• VLA (radio)
• CANDELS

COSMOS/SMUVS

• The Spitzer Matching survey of the Ultra-VISTA ultra-deep stripes (SMUVS, Ashby et al. 2018) is an Exploration Science Program which collected infrared

imaging with Spitzer's data (Werner et al. 2004) with the Infrared Array Camera (IRAC, Fazio et al. 2004) at 3.6 and 4.5 um over 0.66 deg2 of the COSMOS �field.

• The region covered by SMUVS corresponds to the part of the COSMOS fi�eld with deepest near-IR data from the UltraVISTA program (McCracken et al. 2012) and optical Subaru data (Taniguchi et al. 2007).
• The SMUVS data has an average integration time of 25 h/pointing and reaches 80% completeness at 25.5 mag, both in the 3.6 and 4.5 um �lfilters (Deshmukh et al. 2018).

Spectra

• zCOSMOS

• VLT using the VIMOS spectrograph

1. 25,000 galaxies at 0.3 < z < 1.0 with IAB < 22.5
2. 12,500 star-forming galaxies color selected for 1.4 < z < 2.5

样本

• X-ray group sample

红移在0.2-12， 276 extended source identified from co-added XMM-Newton images

• COSMOS2015 released

photometric redshifts and stellar masses for more than half a million objects o

$YJHK_{\rm s}$ images from the UltraVISTA-DR2 survey, $Y$-band from Subaru/Hyper-Suprime-Cam and infrared data from the Spitzer Large Area Survey with the Hyper-Suprime-Cam Spitzer legacy program