UltraVISTA
The UltraVISTA program aims to provide extremely deep near-infrared YJHKs and narrow-band NB118 photometry on the COSMOS field. The survey is divided into two components, the "deep" component which covers a 1.5 x 1.2 deg contiguous region in the COSMOS field, and the "ultra-deep" component which covers 4 ultra-deep stripes in the field.
Contact: Henry McCracken - h.j.mccracken [at] gmail.com
Figure: UltraVISTA Ultra-deep and deep surveys and ACS coverage. North is up and east is to the left.
Subaru Hyper Suprime-Cam
We have used University of Hawaii observing time (PI: G. Hasinger) to obtain new, deep optical images with the Subaru Hyper Suprime-Cam (HSC) instrument.
We have obtained a total of 2, 4, 2, and 6 hours exposure in the g, i, z, and y-band, respectively in two observing runs in March 2014 and January 2015.
The seeing was between 0.5 and 1.1”. For the y-band in particular, these observations are the deepest ever taken in the COSMOS field. The y-band limit
is about 1 magnitude deeper than the Ultravista data. The following image shows a comparison of the y-band image from Ultravista (left) and HSC (right).
Contact: G. Hasinger - hasinger [at] ifa.hawaii.edu
Other programs
Significant amounts of time have been allocated to COSMOS with ground based telescopes. These are summarized in the table below.
| Telescope | Bands | Area | Instruments | Ref/contact |
| CFHT | u*,i*, H, Ks | 2 | MegaPrime, WIRCAM | Henry McCracken - h.j.mccracken [at] gmail.com |
| CFHT-LS | u*,g*,r*,i*,z* | 1 | MegaPrime | Henry McCracken - h.j.mccracken [at] gmail.com |
| VISTA | Y,J,H,Ks | 1.5 | VCAM |
McCracken et al. 2012, Laigle et al. 2015 Henry McCracken - h.j.mccracken [at] gmail.com |
| Subaru | B,g’,V,r’,i’,z’,z’’ + 12 Intermediate and 2 Narrow Bands | 2 | Suprime-Cam | Peter Capak - capak [at] astro.caltech.edu |
| UKIRT | Y,J | 2 | WFCAM |
Mara Salvato - mara [at] mpe.mpg.de Peter Capak - capak [at] astro.caltech.edu |
| Blanco | Ks | 2 | ISPI | Peter Capak - capak [at] astro.caltech.edu |
| Mayall | Ks | 2 | FLAMINGOS | Peter Capak - capak [at] astro.caltech.edu |
| Mayall | J1,J2,J3,H1,H3, Ks | 0.3 | NEWFIRM | Pieter Van Dokkum - pieter.vandokkum [at] yale.edu |
