text: 422,19,1209288887400570880,312448486,Dr. Karan Jani,NEW PAPER - we revisit an intermediate mass black hole trigger in @LIGO. We find it to be consistent with binary black hole merger of 150 SOLAR MASSES.  Heard right - BLACK HOLES that are one-hundred-fifty times heavier than Sun !  Beat that 2019🖖🏻 <LINK> <LINK> @alexandernitz @LIGO Indeed we focused on the new PE machinery. This trigger was very marginal for the matched filtering searches. Was loud (significant) only for the Burst search. Not surprising though 🙌🏻,https://arxiv.org/abs/1912.10533,"Gravitational wave (GW) measurements provide the most robust constraints of the mass of astrophysical black holes. Using state-of-the-art GW signal models and a unique parameter estimation technique, we infer the source parameters of the loudest marginal trigger, GW170502, found by LIGO from 2015 to 2017. If this trigger is assumed to be a binary black hole merger, we find it corresponds to a total mass in the source frame of $157^{+55}_{-41}~\rm{M}_\odot$ at redshift $z=1.37^{+0.93}_{-0.64}$. The primary and secondary black hole masses are constrained to $94^{+44}_{-28}~\rm{M}_{\odot}$ and $62^{+30}_{-25}~\rm{M}_{\odot}$ respectively, with 90\% confidence. Across all signal models, we find $\gtrsim 70\%$ probability for the effective spin parameter $\chi_\mathrm{eff}>0.1$. Furthermore, we find that the inclusion of higher-order modes in the analysis narrows the confidence region for the primary black hole mass by 10\%, however, the evidence for these modes in the data remains negligible. The techniques outlined in this study could lead to robust inference of the physical parameters for all intermediate-mass black hole binary candidates $(\gtrsim100~\mathrm{M}_\odot)$ in the current GW network. ","Inferring Parameters of GW170502: The Loudest Intermediate-mass Black