HCG 57: Evidence for Shock-heated Intergalactic Gas from X-Rays and Optical Emission Line Spectroscopy by Ewan O’Sullivan, P. N. Appleton, B. A. Joshi, Lauranne Lanz, Katherine Alatalo, Jan M. Vrtilek, Andreas Zezas, Laurence P. David

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Revisiting the Group-dominant Elliptical NGC 5044 in the Radio Band: Continuum Emission and Detection of H i Absorption by Kamlesh Rajpurohit, Tirna Deb, Konstantinos Kolokythas, Kshitij Thorat, Ewan O’Sullivan, Gerrit Schellenberger, Laurence P. David, Jan M. Vrtilek, Simona Giacintucci, William Forman, Christine Jones, Mpati Ramatsoku

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Probing the High-frequency Variability of NGC 5044: The Key to Active Galactic Nucleus Feedback by Gerrit Schellenberger, Ewan O’Sullivan, Laurence P. David, Jan Vrtilek, Charles Romero, Glen Petitpas, William Forman, Simona Giacintucci, Mark Gurwell, Christine Jones, Kamlesh Rajpurohit, Francesco Ubertosi, Tiziana Venturi

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