VizieR Online Data Catalog: Tidal scars of the Small Magellanic Cloud (De Leo+, 2020)

Our data is complementary to those from Dobbie et al. (2014MNRAS.442.1663D, Cat. J/MNRAS/442/1663), who performed a similar study but covered mainly the SMC body. We sampled regions between the fields from Dobbie et al. (2014MNRAS.442.1663D, Cat. J/MNRAS/442/1663) and went slightly further in some directions. The spectroscopic targets were selected from the expected position of the upper RGB in the colour-magnitude diagram (CMD) from the Two Micron All Sky Survey (2MASS; Skrutskie et al. 2006AJ....131.1163S, Cat. VII/233).

The spectroscopic observations were secured on the nights of the 2011i October 2 and 3, and 2014 November 10, 11, and 12 with the AAOmega spectrograph (Saunders et al. 2004SPIE.5492..389S) fed by the Two Degree Field (2dF) multiobject system installed at the prime focus of the Anglo-Australian Telescope located at Siding Spring Observatory (Australia). The 2dF + AAOmega is a dual-beam spectrograph that allows to allocate up to 400 2arcsec-size optical fibres within a 2° field of view. In the red arm, we used the grating 1700D centred on ~8500Å, providing a spectral resolution of R~8500. For each field we acquired three exposures of 3600s. In total, we obtained spectra with a signal-to-noise ratio (SNR) per pixel larger than 5 for 2573 stars.

Table A1 reports the 1861 stars of our data set with radial velocity determinations.

(1 data file).