Analyses with real data

5. Analyses with real data#

5.1. Producing plots#

For these analyses, we provide a command line tool in gw-smc-uitls that produces the comparison plots.

Its basic usage is:

gw_smc_utils_plot_event \
    --results <path to GW-SMC data release>/real_data/GW200129_bilby_result_pocomc.hdf5 \
    --labels pocomc \
    --data-release-path <path to the GWTC data releases> \
    --SID GW200129 \
    --extension pdf

Note

The parameters are currently hardcoded. We recommend using pesummary if you wish to explore more of the parameters. See the documentation for more details.

Alternatively, the Makefile in plotting includes commands to produces the plots (including automatically downloading the GWTC data releases). In the plotting directory run:

make GW150914_plots

or swap GW150914 for GW200129.

Results for GW150914#

Important

These figures are generated automatically and may use different random number generation compared to the results shown in the paper.

Intrinsic parameters

posterior distribution for GW150914 showing a subset of the intrinsic parameters.

Extrinsic parameters

posterior distribution for GW150914 showing the localization parameters.

Results for GW200129#

Important

These figures are generated automatically and may use different random number generation compared to the results shown in the paper.

Intrinsic parameters

posterior distribution for GW200129 showing a subset of the intrinsic parameters.

Extrinsic parameters

posterior distribution for GW200129 showing the localization parameters.

5.2. Running the analyses#

bilby_pipe ini files for both the events we analyse are included in experiments/real_data/<SID> where SID is either GW150914 or GW200129.

Fetching the PSDs#

Having downloaded the data releases, the PSDs are fetching using the fetch_psds command in the Makefile:

make fetch_psds

This will extract the PSDs from the GWTC data release files and save them to psds

Submitting the analyses#

Each ini file can be submitted by running:

bilby_pipe <ini file> --submit

5.3. Downloading the GWTC data release#

To download the GWTC data releases used for producing plots and running analyses run the following in the gwtc_data_releases directory of the repository:

make

This will only download the files that are necessary.

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