Scientific stories

The evidence behind the astrophysical picture

Evidence-led explanations of selected results, the measurements behind them, and the questions that remain open.

Observational composites of 2MASX J13003807+5454367 and FIRST J120041.4+314745, with Chandra X-ray emission in red, Hubble [O III] emission in green, and Hubble stellar continuum in blue. — X-ray: NASA/CXC; optical: NASA/ESA/HST; image processing and composition: Anna Trindade Falcão.

Two Quasars, Two Feedback Contexts

Chandra imaging spectroscopy and Hubble observations compare extended photoionized X-ray emission with [O III] morphology and optically measured kinematics in two luminous type 2 quasars.

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