Extended warm gas in the ULIRG Mrk273: Galactic outflows and tidal debris J. Rodríguez Zaurín, C. N. Tadhunter, D. S. N. Rupke, S. Veilleux, H. W. W. Spoon, M. Chiaberge, C. Ramos Almeida, D. Batcheldor and W. B. Sparks A&A, 571 (2014) A57 Published online: 07 November 2014 DOI: 10.1051/0004-6361/201423540