Astronomy & Astrophysics manuscript no. bergond June 28, 2021 (DOI: will be inserted by hand later) Wide-field kinematics of globular clusters in the Leo I group⋆,⋆⋆ G. Bergond1,2,3, S. E. Zepf1, A. J. Romanowsky4,5, R. M. Sharples6, and K. L. Rhode7,8 1 Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA, e-mail:
[email protected] 2 Instituto de Astrof´isica de Andaluc´ıa, C/ Camino Bajo de Hu´etor 50, 18008 Granada, Spain 3 GEPI/CAI, Observatoire de Paris, 77, Avenue Denfert-Rochereau, 75014 Paris, France 4 Departamento de F´isica, Universidad de Concepci´on, Casilla 160-C, Concepci´on, Chile, e-mail:
[email protected] 5 School of Physics and Astronomy, University of Nottingham, University Park, Nottingham, NG7 2RD, UK 6 Department of Physics, University of Durham, South Road, Durham, DH1 3LE, UK, e-mail:
[email protected] 7 Department of Astronomy, Wesleyan University, Middletown, CT 06459, USA, e-mail:
[email protected] 8 Department of Astronomy, Yale University, P.O. Box 208101, New Haven, CT 06520, USA Received DD Month YYYY / Accepted DD Month YYYY Abstract. We present wide-field spectroscopy of globular clusters around the Leo I group galaxies NGC 3379 and NGC 3384 using the FLAMES multi-fibre instrument at the VLT. We obtain accurate radial velocities for 42 globular clusters (GCs) in total, 30 for GCs around the elliptical NGC 3379, eight around the lenticular NGC 3384, and four which may be associated with either galaxy. These data are notable for their large radial range extending from 0.′7 to 14.′5 (2 to 42 kpc) from the centre of NGC 3379, 1 and small velocity uncertainties of about 10 km s− .