we briefly comment on this at the end of section 3. i think the two main reasons are (i) as far as i understand, jonnie's original analysis had a small numerical error which worked in SKA's favor; and (ii) our fiducial analysis includes an additional 25% uncertainty accounting for errors in numerical EoR implementations. indeed the later is the bottleneck in nailing down the large-scales in our models (table 3), thus limiting the scientific return from higher SKA sensitivity. SKA still does better in narrow-band measurements (fig. 3), where the additional small-scale information leverages the lack of information on the redshift evolution of the large-scale power. -a
On 29.01.2015., at 17.05, Chris Carilli <[email protected]> wrote: > > > Great. you should look at the new Greig and Mesinger paper on sensitivities > to cosmological parameters. hera seems to do very well wrt ska. better > than in Jonnie's analysis, i think. not sure why. > > cc > > > > On 01/29/2015 08:57 AM, Gianni Bernardi wrote: >> Hi HERAtics, >> as I mentioned at last week's telecon, I'm planning to attend the >> reionization meeting in Greece next May and, after I've talked to the other >> participants and heard what they propose to present, there is a slot >> available to give an overview of HERA on the behalf of the collaboration. >> I'd like to do that if everybody's happy with it and propose the following >> title and abstract: >> >> Title: "Beyond the first generation of 21cm radio interferometers: the >> Hydrogen Epoch of Reionization Array (HERA)" >> >> Abstract: "The ongoing pursuit of the redshifted 21cm signal by the first >> generation of 21cm instruments (GMRT, LOFAR, MWA, PAPER) has dramatically >> improved our knowledge of the instrumental design, observational as well >> data analysis techniques required to detect the 21cm signal. The Hydrogen >> Epoch of Reionization Array (HERA) is indeed a next generation 21cm radio >> interferometer that draws from lessons from its predecessors, particularly >> on array redundancy and foreground avoidance. In my talk I will describe the >> HERA and its goals, as well as its early deployment at the Karoo radio quiet >> site." >> >> I might not be able to calling in for the telecon tonight, so, please, email >> me any input a/o amend related to above. If no objections, I'd submit it >> later in the evening, >> thanks >> >> Gianni > >
