InformationBelow are a few selected plots I've made for my research, with a brief description for each. If you have any questions/comments/ideas, please get in touch.
gaussmodel in Xspec) is shown with a dotted line, and the interpolated version from the table model approximation with a solid line. The biggest difference between the truth and interpolated values are seen when the line energy is directly in-between two tabulated grid points.
Black hole spins with Athena/X-IFUIn this figure, a series of AGN X-ray spectra are simulated with Athena/X-IFU at incrementally brighter fluxes. The right panel shows the posterior points found for black hole spin vs. the height of the X-ray emitting source above the black hole (assuming the lamp post geometry). For low, intermediate and high spins, the X-IFU can constrain spin under the assumptions of the simulated model.
No-source probabilities are used to quantify detection significance in X-ray astronomy, and is the probability that some amount of detected counts in a source region (NAsrc) is caused by a background fluctuation (i.e. that there is "no source"). For more information, see discussion in Lansbury et al., (2014) or Weisskopf et al., (2007)
I created this GIF using code provided by George Lansbury to calculate no-source probabilities and estimate the posterior for the number of source counts. The left panel shows a simulated observation with the number of source+background counts consider in a given instance, as well as the number of background counts (fixed at 20 here). The middle panel shows the Binomial no-source probability distribution, with orange and green regions representing the no-source probabilities for the observation and for the number of counts required to reach a no-source probability of 1%. The right panel then shows the Bayesian posterior distribution on number of source counts using the formalism from Kraft et al., (1991).
Swift/Burst Alert Telescope 70-month catalogue
This is an interactive sky-map I created with the help of Adam Hill using Plotly. You can select the different redshift ranges in the legend to plot different selections on the skymap. Every source was detected in the 70 month Swift/Burst Alert Telescope catalogue, and the size of the points is proportional to the amount of hard X-ray (14-195 keV) flux detected by BAT at that position in the sky.
The NuSTAR Local AGN NH Distribution Survey (NuLANDS)
This is an interactive sky-map of the NuSTAR Local AGN NH Distribution Survey (NuLANDS) sample. Each point was selected based on their mid-to-far infrared flux detected by the InfraRed Astronomy Satellite (IRAS). NuLANDS was selected as an ~1 Ms Legacy Survey with NASA's NuSTAR space telescope to determine how obscured AGN are on average in the local Universe.