Our JWST early release science (ERS) proposal “Through the Looking GLASS: A JWST Exploration of Galaxy Formation and Evolution from Cosmic Dawn to Present Day” was selected as one of 13 successful programs.
The ERS programs will run in the first 5 months of JWST’s science operations (end of 2019 – early 2020) and will showcase JWST’s instrument capabilities, and provide science-enabling products to help the astronomical community maximize the science output of the JWST mission.
The GLASS ERS program will provide NIRISS and NIRSpec spectroscopy in the Frontier Field cluster Abell 2744, as well as NIRCam parallel imaging. More details about our ERS program are available at glass.astro.ucla.edu/ers
Schmidt et al. (2014), ApJÂ 782:L36Â
The first GLASS dataÂ arrived on 2013 December 24 and 30 and consists of 10029 and 3812 secondsÂ of G102 and G141 spectroscopy on MACS0717, respectively, and comprise only ~1/20th of the final GLASS data product.
For the 9 redshiftÂ 6 galaxy candidates in MACS0717 with GLASS grism spectra clear of contamination we do not detect any emission lines down to aÂ 1Ïƒ noise level of âˆ¼5Ã—10âˆ’18 erg sâˆ’1 cmâˆ’2. This confirms that the targeted high redshift candidates are notÂ strong line emitters at lower redshift.
Furthermore, we spectroscopically confirm four multiply imaged strongly lensed systems by detecting emission lines ([OIII] and [OII]) Â the GLASS grism spectra, confirming the proposedÂ photometric redshifts from the literature.Â
For more details follow the link to ADSÂ .