EMCCD photometry reveals two new variable stars in the crowded central region of the globular cluster NGC 6981 (Research note)

Jesper Mirsa Skottfelt, D. M. Bramich, R. Figuera Jaimes, Uffe Gråe Jørgensen, N. Kanis, Kennet Bomann West Harpsøe, C. Liebig, M. T. Penny, K. A. Alsubai, J. M. Andersen, V. Bozza, P. Browne, S. Calchi Novati, Y. Damerdji, C. Diehl, M. Dominik, A. Elyiv, E. Giannini, F. Hessman, T. C. HinseM. Hundertmark, Diana Juncher, E. Kerins, Heidi Helena Korhonen, L. Mancini, R. Martin, M. Rabus, S. Rahvar, G. Scarpetta, J. Southworth, C. Snodgrass, R. A. Street, J. Surdej, J. Tregloan-Reed, C. Vilela, A. WilliamsVis 16 andreVis mindre