Open access
Aug 2026
Recovering the effective impact parameters in integral-field absorption-line tomography
Integral-field-unit (IFU) spectroscopy of extended background sources, such as gravitational arcs, delivers many closely spaced absorption sightlines through the circumgalactic medium (CGM) of foreground galaxies. However, the source extent and smearing through the point spread function (PSF) cause each spaxel to integ...
J. Hernández-Guajardo, L. Barrientos, C. Ledoux et al.
· Astronomy & Astrophysics · 0 citations