Data for Prompt Searches for Very-High-Energy γ-Ray Counterparts to IceCube Astrophysical Neutrino Alerts

This dataset provides the multi-instrument spectral energy distribution (SED) data and upper limits corresponding to Figures 3–7 of the paper “Prompt Searches for Very-High-Energy γ-Ray Counterparts to IceCube Astrophysical Neutrino Alerts.”All data are stored in Enhanced Character-Separated Values (ECSV) format. 🔹 General Format File type: .ecsv (plain text, comma-delimited) Standard: Astropy ECSV 0.9–2.0 Delimiter: , Encoding: UTF-8 Purpose: Each file lists the energy-binned SED points or upper limits for a given source. Units: Explicitly stated in the header of each file. 🔹 Column Definitions (common across files) Column name Unit Type Description srcname — string Source or neutrino-event identifier en eV or keV float Bin center energy en_wlo, en_wup same as en float Lower and upper bin half-widths nufnu erg cm⁻² s⁻¹ float Differential photon flux at bin center nufnu_elo, nufnu_eup erg cm⁻² s⁻¹ float Lower and upper statistical uncertainties in nufnu dnde TeV⁻¹ cm⁻² s⁻¹ float Differential photon flux ($dN/dE$), when used instead of nufnu dnde_elo, dnde_eup TeV⁻¹ cm⁻² s⁻¹ float Lower and upper uncertainty in dnde tstart, tstop MJD float Start and stop times of the observation texpo s or h float Effective exposure time instrument — string Instrument or combined instruments used dataformat — string “ul” = upper limit; “flux” = measured flux comments — string Additional notes (e.g. confidence level, campaign, etc.)