Gregory Paciga

Gregory Paciga

Scientist by training, Tester by trade
Ph.D., Astronomy & Astrophysics

Email: gregory [at]

Gregory Paciga in the field

In the field searching for RFI.


I did my Ph.D. in Astronomy & Astrophysics at the University of Toronto. I worked on the GMRT-EoR project, which tried to measure the power-spectrum of neutral hydrogen structure at a redshift of about 9, using the Giant Metrewave Radio Telescope in India. While my academic research interests are observational cosmology and structure formation in the early universe, I have since left academia and am now working as a software developer and tester.


Paciga, Gregory; Albert, Joshua G.; Bandura, Kevin; Chang, Tzu-Ching; Gupta, Yashwant; Hirata, Christopher; Odegova, Julia; Pen, Ue-Li; Peterson, Jeffrey B.; Roy, Jayanta; Shaw, J. Richard; Sigurdson, Kris; Voytek, Tabitha. "A simulation-calibrated limit on the H I power spectrum from the GMRT Epoch of Reionization experiment". MNRAS, Vol. 433, Issue 1, p. 639-647. (astro-ph/1301.5906; ADS)

Paciga, Gregory; Chang, Tzu-Ching; Gupta, Yashwant; Nityanada, Rajaram; Odegova, Julia; Pen, Ue-Li; Peterson, Jeffrey; Roy, Jayanta; Sigurdson, Kris. "The GMRT-EoR Experiment: A new upper limit on the neutral hydrogen power spectrum at z ~ 8.6". MNRAS, Vol. 413, Issue 2, p. 1174-1183. (astro-ph/1006.1351; ADS)

Paciga, Gregory; Scott, Douglas; Chapin, Edward L. "Strong lensing of submillimetre galaxies: a tracer or foreground structure?". MNRAS, Vol. 395, Issue 2, p. 1153-1162. (astro-ph/0801.0274; ADS)

Fisher, J.; Paciga, G.; Xu, Li-Hong, Zhao, S.B., Moruzzi, G.; Lees, R.M. "Torsion rotation global analysis and database for the CH318OH isotopomer of methanol". Journal of Molecular Spectroscopy, Vol. 245, Issue 1, p. 7-20. (ADS)

My puppy does research too.