Papers › MITEoR: A Scalable Interferometer for Precision 21 cm Cosmology
MITEoR: A Scalable Interferometer for Precision 21 cm Cosmology
Haoxuan Zheng, Max Tegmark, Victor Buza, Joshua S. Dillon, Hrant Gharibyan, Jack Hickish, Eben Kunz, Adrian Liu, Jon Losh, Andrew Lutomirski, Scott Morrison, Sruthi Narayanan, Ashley Perko, Devon Rosner, Nevada Sanchez, Katelin Schutz, Shana M. Tribiano, Michael Valdez, Hung-I Yang, Kristian Zarb Adami, Ioana Zelko, Kevin Zheng, Richard Armstrong, Richard F. Bradley, Matthew R. Dexter, Aaron Ewall-Wice, Alessio Magro, Michael Matejek, Edward Morgan, Abraham R. Neben, Qinxuan Pan, Robert F. Penna, Courtney M. Peterson, Meng Su, Joel Villasenor, Christopher L. Williams, Yan Zhu
The archive published only this paper's code-link row. Authors, date and abstract are from arXiv's metadata (CC0), read from the Kaggle arXiv metadata snapshot of 2026-09-12 where its title matched the archive's; the title is the archive's.
We report on the MIT Epoch of Reionization (MITEoR) experiment, a pathfinder low-frequency radio interferometer whose goal is to test technologies that improve the calibration precision and reduce the cost of the high-sensitivity 3D mapping required for 21 cm cosmology. MITEoR accomplishes this by using massive baseline redundancy, which enables both automated precision calibration and correlator cost reduction. We demonstrate and quantify the power and robustness of redundancy for scalability and precision. We find that the calibration parameters precisely describe the effect of the instrument upon our measurements, allowing us to form a model that is consistent with χ² per degree of freedom < 1.2 for as much as 80% of the observations. We use these results to develop an optimal estimator of calibration parameters using Wiener filtering, and explore the question of how often and how finely in frequency visibilities must be reliably measured to solve for calibration coefficients. The success of MITEoR with its 64 dual-polarization elements bodes well for the more ambitious Hydrogen Epoch of Reionization Array (HERA) project and other next-generation instruments, which would incorporate many identical or similar technologies.
Code
Repository list and official/mentioned flags are the archive's, frozen 2025-07-28. Reachability, where shown, is from one Syntology probe window (2026-09-16 to 2026-09-18); repositories not probed show nothing. GitHub stars are not tracked.
Code Syntology ran Syntology
Not run by Syntology. Nothing on this page verifies that the listed code works.
Results from the paper archive 2025-07-28
No leaderboard rows for this paper in the archive.
Report a problem or propose a change · a person checks every report against the paper or source before anything changes; decisions are listed on /corrections