Structure and Kinematics of Early-Type Galaxies from Integral-Field Spectroscopy

Understand

Observations of galaxy isophotes, longs-slit kinematics and high-resolution photometry suggested a possible dichotomy between two distinct classes of E galaxies.

• But these methods are expensive for large galaxy samples.
• Instead, integral-field spectroscopic can efficiently recognize the shape, dynamics and stellar population of complete samples of early-type galaxies (ETGs).
• These studies showed that the two main classes, the fast and slow rotators, can be separated using stellar kinematics.