Dear colleagues,

We are pleased to announce the second v0 5 release of Epoch 2 HST mosaics obtained on the cluster Abell 2744, from the observations of this target from our Frontier Fields program ID 13495 (P I : J Lotz) These mosaics consist of 34 orbits of exposure time from Epoch 2, which is now about halfway through In this second epoch, the orientation of HST has enabled the the instruments to be swapped, in order to begin obtaining WFC3/IR imaging on the parallel field, and further ACS/WFC imaging on the primary field These mosaics have all been processed beyond the default pipeline calibration, including self-calibration for ACS and correction for time-variable sky background in WFC3/IR, and are all astrometrically aligned to the previous mosaics obtained during Epoch 1 of this target Further details are provided in the readme file, which can be obtained along with all the mosaics at the following link:

http://archive stsci edu/pub/hlsp/frontier/abell2744/images/hst/v0 5-20140606/

More general information about the data for this project can be obtained from our Frontier Fields MAST archive website: * http://archive stsci edu/prepds/frontier/ as well as our main Frontier Fields HST project website: * http://www stsci edu/hst/campaigns/frontier-fields/ and our Frontier Fields astronomer's blog: * https://blogs stsci edu/hstff/

We hope that these high-level science products are useful for your research, and we welcome any suggestions or questions that you may have about them

Best regards, Anton Koekemoer and the STScI Frontier Fields Team http://archive stsci edu/prepds/frontier/ http://www stsci edu/hst/campaigns/frontier-fields/Contact

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