VizieR Online Data Catalog: UV to NIR obs. of SN 2019ehk (Jacobson-Galan+, 2020)

In this paper, we present, analyze, and model multiwavelength observations (X-ray to radio) of a new CaST, SN 2019ehk, discovered by astronomer Joel Shepherd on 2019 April 29 (MJD 58602.24) using a TEC 140mm APO refracting telescope and Atik 460 EX Mono camera with an SDSS g filter.

We started observing SN 2019ehk with the Ultraviolet Optical Telescope (UVOT) on board the Neil Gehrels Swift Observatory on 2019 May 1 until 2019 May 26 (δt=2.8-27.3days since explosion).

SN 2019ehk was imaged between 2019 April 30 and 2019 August 1 (δt=1.2-94.2days since explosion) with the Direct camera on the Swope 1m telescope at Las Campanas Observatory, Chile and the PlaneWave CDK-700 0.7m telescope at Thacher Observatory in Ojai, California. Observations were performed in Johnson BV and Sloan ugriz filters.

Las Cumbres Observatory (LCO) UBVgri-band data of SN 2019ehk were obtained with the Sinistro cameras on the 1m telescopes at Sutherland (South Africa), CTIO (Chile), Siding Spring (Australia), and McDonald (USA), through the Global Supernova Project.

SN 2019ehk was also observed with ATLAS, a twin 0.5m telescope system installed on Haleakala and Mauna Loa in the Hawai'ian islands that robotically surveys the sky in cyan (c) and orange (o) filters.

Additional follow-up photometry on SN 2019ehk was gathered at the Konkoly Observatory, Hungary, using the 0.8m RC80 telescope equipped with a CCD camera and BVg'r'i'z' filters.

SN 2019ehk was observed with Shane/Kast, SOAR/Goodman, and Keck/LRIS between -12 days and +257 days relative to the second light-curve peak. SN 2019ehk was observed using EFOSC2 at the 3.58m ESO New Technology Telescope (NTT) on 2019 May 13. LCO optical spectra were taken with the FLOYDS spectrographs mounted on the 2m Faulkes Telescope North and South at Haleakala (USA) and Siding Spring (Australia), respectively, through the Global Supernova Project. One low-resolution optical spectrum was taken with the 300l/mm grating on the Boller & Chivens (B&C) spectrograph mounted on the 2.3m Bok telescope on Kitt Peak on 2019 June 5. Additionally, one moderate-resolution spectrum was taken with the Binospec spectrograph on the MMT using the 600l/mm grating on 2019 June 3. The spectroscopic observations of SN 2019ehk were also collected using the Xinglong 2.16m telescope (+BFOSC), and the Lijiang 2.4m telescope (+YFOSC) in China. On 2019 June 22 (MJD 58656.0), we used the Triple-Spec instrument at SOAR to obtain a set of three ABBA observations of SN2019ehk. A full log of spectroscopic observations is presented in Table A9.

(4 data files).