LBT/MODS1 spectroscopy of two faint sources at z=6.4

We report the LBT/MODS1 spectroscopic confirmation of two images of faint Lyman alpha emitters at z = 6.4 behind the Frontier Fields galaxy cluster MACSJ0717.5+3745. A wide range of lens models suggests that the two images are highly magnified, with a strong lower...

Code developed by McLure et al.

McLure et al. (2011) developed a code to analyse the ultra­‐deep IRAC imaging available in the Hubble Ultra Deep Field (HUDF), based on using HST H­‐160 band imaging as prior information. The basic algorithm is very similar to that employed by TFIT and CONVPHOT. It is...

The colour distribution of galaxies at redshift five

We present the results of a study investigating the rest-frame ultra-violet (UV) spectral slopes of redshift z ≈ 5 Lyman-break galaxies (LBGs). By combining deep Hubble Space Telescope imaging of the CANDELS and HUDF fields with ground-based imaging from the UKIDSS...