VizieR Online Data Catalog: Differential photometry & radial velocities of HATS-70 (Zhou+, 2019)

The transits of HATS-70b were first identified by the HATSouth network (Bakos et al. 2013PASP..125..154B). To provide continuous coverage of large fields of the sky, HATSouth operates a network of telescopes across the Southern hemisphere, at Las Campanas Observatory in Chile, at the High Energy Spectroscopic Survey site in Namibia, and at Siding Spring Observatory (SSO) in Australia. A series of photometric follow-up observations were obtained for the transits of HATS-70b. These observations were gathered over the course of 5 years, covering photometric bands ranging from g in the blue to Ks in the near-infrared. The egress of HATS-70b was captured on 2013 Oct 26 with the 0.9 m SMARTS Telescope at Cerro Tololo Inter-American Observatory. A full I band transit on 2014 Mar 13 was observed with the Danish Faint Object Spectrograph and Camera on the Danish 1.54 m (DK 1.54 m) telescope at La Silla, Chile. A partial transit was obtained with the IRIS2 infrared camera on the Anglo-Australian Telescope at SSO, Australia, on 2016 Feb 16. The observations were obtained in the Ks band and were reduced as per the procedure described in Zhou et al. (2014MNRAS.445.2746Z). The 1 m Swope telescope, located at Las Campanas Observatory, was used on 2016 Feb 19 to obtain a g full transit using its e2v CCD camera. An i band egress of HATS-70b was observed with the 0.7 m Chilean-Hungarian Automated Telescope (CHAT) on 2018 Jan 14. CHAT is a dedicated transit-follow-up telescope located at Las Campanas Observatory, and makes use of a 2Kx2K back-illuminated CCD yielding a pixel scale of 0.6"/pixel over a field of view of 21'x21'. Observations from the Las Cumbres Observatory (LCO; Brown et al. 2013PASP..125.1031B) 1 m telescope at the South African Astronomical Observatory on 2018 Jan 16 covered the full transit in i band with the Sinistro camera. Seven observations were obtained with the CORALIE spectrograph (Queloz et al. 2001Msngr.105....1Q) on the Euler 1.2 m telescope at La Silla Observatory, Chile. Spectra from CORALIE covers the range of 3900-6800 Å at a resolution of λ/Δλ=R=60000. Our observations were obtained with integration times of 1800-3600 s, yielding a signal-to-noise ratio of ~20 per resolution element. An additional 12 observations were obtained with FEROS (Kaufer & Pasquini 1998SPIE.3355..844K) on the MPG 2.2 m telescope at La Silla. FEROS is a fiber fed spectrograph with spectral resolution of R=48000 over the wavelength range of 3500-9200 Å. The radial velocities from CORALIE and FEROS are listed in Table 4.

(2 data files).