Speckle Observations with PISCO in Calern (France): Orbit and Mass Determinations for 22 Visual Binaries

J. F. Ling , M. Scardia (1) , J. -L. Prieur (2) , R. W. Argyle , E. Aristidi (3) , A. Zanutta , L. Abe (3) , P. Bendjoya (3) , J. -P. Rivet (3) , D. Vernet (1)

1 OCA - Observatoire de la Côte d'Azur
2 IRAP - Institut de recherche en astrophysique et planétologie
3 LAGRANGE - Joseph Louis LAGRANGE

This paper presents orbits and masses for 22 visual double stars, partly derived using their last observations made with the speckle camera PISCO. For 13 of them we have determined their first-time orbits. Masses were calculated from Hipparcos and Gaia parallaxes when available, and from dynamical parallaxes otherwise. They are compared with masses deduced from spectral types. Other physical and orbital properties are also considered.

Keywords: WDS 15075+5516 (HU 143 Aa; Ab); WDS 15186+2356 (COU 307); WDS 16468+0821 (A 2784 AB); WDS 16497+5816 (MLR 430); WDS 19389+3514 (HU 953); WDS 20198+4522 (STT 406); WDS 20216+2346 (STF 2672); WDS 20550+2805 (BU 367 AB); WDS 22025+2612 (A 307); WDS 23009+3522 (HU 991); binaries: visual; Stars: fundamental parameters; Stars: individual: WDS 01151+3416 (HU 803); WDS 01450+5707 (BU 453 AB); WDS 01570+3101 (A 819 AB); WDS 09349+0515 (A 2757); WDS 10131+2725 (STT 213 AB); WDS 10163+1744 (STT 215); WDS 10287+4558 (A 1993); WDS 11468+1500 (BU 602); WDS 12194+1744 (A 2059); WDS 12335+0901 (REU 1); WDS 14358+0015 (BU 941 AB); WDS 15002+2129 (HU 907)

Domains: Sciences of the Universe [physics]

J. F. Ling, M. Scardia, J. -L. Prieur, R. W. Argyle, E. Aristidi, et al.. Speckle Observations with PISCO in Calern (France): Orbit and Mass Determinations for 22 Visual Binaries. Acta Astronomica, 2022, 72, pp.113-140. ⟨10.32023/0001-5237/72.2.3⟩. ⟨insu-03863534⟩