VizieR Online Data Catalog: Phot. & sp. follow-up of type Ia SN2020esm (Dimitriadis+, 2022)

We obtained optical photometric observations of SN 2020esm with various telescopes/instruments.

Our main photometry was performed with the SINISTRO cameras of the Las Cumbres Observatory Global Telescope Network (LCOGT) network of 1m telescopes (NOAO2020A-012 and NOAO2020B-011, PI: Foley). Images were obtained in ugri, from 2020 March 25 UT (approximately 3 days after discovery and 11 days before peak brightness) until 2020 July 22 UT (107 days after maximum).

Additional griz photometry was obtained through the Young Supernova Experiment (YSE; Jones+ 2021ApJ...908..143J) with the Pan-STARRS1 telescope (PS1) between 2020 March 25 UT and 2020 July 24 UT, BVgri photometry with the 1m telescope at the Lulin observatory in Taiwan, and griz photometry with the 0.7m telescope of the Thacher observatory in California (J. J. Swift et al. 2022, in preparation). Late-time griz imaging (at 280 and 305 days from maximum brightness) was performed with the Gemini Multi-Object Spectrograph (GMOS) on the 8.1m Gemini North telescope in Maunakea (GN-2020B-Q-324 and GN-2021A-DD-102, PI: Foley) and F555W and F814W imaging with HST/WFC3 at 356 days from maximum brightness (SNAP-16239, PI: Foley).

UV photometric observations were performed with the Ultraviolet Optical Telescope (UVOT) on board the Neil Gehrels Swift Observatory from 2020 March 24 UT until 2020 March 30 UT, with template images obtained on 2020 March 21 UT.

Spectroscopic coverage of SN 2020esm ranges from roughly -12 to +307d relative to the B-band maximum. We obtained a total of seven spectroscopic observations with the Folded Low Order whYte-pupil Double-dispersed Spectrograph (FLOYDS) spectrograph on the Faulkes 2m telescopes of the LCOGTN robotic network (NOAO2020A-012, PI: Foley), one spectrum with the Kast spectrograph on the Lick Shane telescope (2020A-S011, PI: Foley), two spectra with the Low-Resolution Imaging Spectrometer (LRIS) on the Keck I telescope (2020A-U209, PI: Foley), and one spectrum with GMOS on the Gemini North telescope (GN-2021A-DD-102, PI: Foley).

(4 data files).