Searches for new physics in high-mass resonances with the ATLAS detector at the LHC

Many new physics scenarios beyond the Standard Model predict the presence of narrow or broad resonances decaying to a pair of fermions (light and heavy quarks, charged leptons and neutrinos) or bosons (gammagamma, WW, WZ, ZZ and HH). The high-mass resonant production of top-quark or vector boson pairs is also a good benchmark process for boosted top and massive boson tagging. This talk summarizes ATLAS searches for heavy resonances with LHC Run 1 data.