Early-excess Type Ia supernovae in the ZTF volume-limited sample have larger SALT2 stretch (7.91 sigma) and r-band secondary maximum flux (6.25 sigma) than no-excess events, with weaker host differences.
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Not All Who Wander Are Lost: Early Excess Demographics in the Volume-limited ZTF DR2 SN Ia Sample
Early-excess Type Ia supernovae in the ZTF volume-limited sample have larger SALT2 stretch (7.91 sigma) and r-band secondary maximum flux (6.25 sigma) than no-excess events, with weaker host differences.