1 / 13

Some HERA Slides

Some HERA Slides. D. Jacobs June 2014. Hydrogen Epoch of Reionization Array. 14m transit dish, 576 element array PAPER feed MWA-type node architecture Fast focus minimizes chromaticity Joint MWA - PAPER enterprise 0.1 km^2 (same collecting area as arecibo, 80x the survey speed).

luzs
Download Presentation

Some HERA Slides

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Some HERA Slides • D. Jacobs • June 2014

  2. Hydrogen Epoch of Reionization Array • 14m transit dish, 576 element array • PAPER feed • MWA-type node architecture • Fast focus minimizes chromaticity • Joint MWA - PAPER enterprise • 0.1 km^2 (same collecting area as arecibo, 80x the survey speed) http://reionization.org

  3. Hydrogen Epoch of Reionization Array • 14m transit dish, 576 element array • PAPER feed • MWA-type node architecture • Fast focus minimizes chromaticity • Joint MWA - PAPER enterprise • 0.1 km^2 (same collecting area as arecibo, 80x the survey speed) http://reionization.org

  4. Size of HERA

  5. credit: Leung 2014

  6. Imaging with HERA

  7. HERA sensitivity to different models for foregrounds ranging from pessimistic to optimistic Pober et al 2013b

  8. antenna config: hex grid + outriggers • complete coverage of uv plane to ~500lambda • deep coverage of centrally condensed core at brightest EoR modes • redundant spacings for sky independent calibration • outriggers double resolution at hex locations double radius of complete uv coverage

  9. Dish design criteria: reflection amplitude lower than 60dB above 60ns VNA measurements of prototype HERA dish

More Related