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To find and download HEASARC data in the cloud, you can use astroquery.heasarc or download our new tool, hark.

The HEASARC and NuSTAR teams are greatly saddened by the sudden passing of Katja Pottschmidt. Most recently Katja was the lead scientist for the NuSTAR Guest Observer Facility (GOF), a role she had supported for many years. During her science career she worked on many other high energy astrophysics missions and played an integral role in advancing our knowledge of the universe. She was a wonderful colleague and friend and will be keenly missed by all who knew her.

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compbb: Comptonization, black body

Comptonized blackbody model by Nishimura, Mitsuda and Itoh (1986, PASJ 38, 819). The electron temperature should normally be kept fixed since the Compton $y$ parameter is the product of the electron temperature and optical depth.

par1 blackbody temperature (keV)
par2 electron temperature of the hot plasma (keV)
par3 optical depth of the plasma
norm $(L_{39}/D_{10})^2$, where $L_{39}$ is the source luminosity in units of $10^{39}$ erg/s and $D_{10}$ is the distance to the source in units of 10 kpc (the same definition used for the bbodyrad model)