J. A. Braatz

TL;DR: In this article, an improved approach for fitting maser data and obtained better distance estimates for four galaxies previously published by the Megamaser Cosmology Project: UGC 3789, NGC 6264 and NGC 6323, with a confidence level varying from 95% to 99% for different treatments of the peculiar velocities.

TL;DR: In this article, the scaling relations between macroscopic galaxy properties and supermassive black hole (BH) mass were investigated using new precision measurements of black hole masses from water megamaser disks.

TL;DR: The Long Baseline Campaign (LBC) was carried out from 2014 September to late November, culminating in end-to-end observations, calibrations, and imaging of selected Science Verification (SV) targets as discussed by the authors.

TL;DR: In this article, the authors conducted a survey for 1.3 cm water maser emission toward the nuclei of nearby active galaxies, the most sensitive large survey for H2O masers to date.

TL;DR: In this paper, the authors used the H2O megamaser to measure the angular-diameter distance to NGC 6264 using four observations with the Very Long Baseline Array, the Green Bank Telescope (GBT), and the Effelsberg telescope.