HILIGT, Upper Limit Servers I -- Overview

TL;DR

HILIGT is a web-based tool that aggregates and visualizes flux measurements and upper limits from multiple X-ray and Gamma-ray observatories for specific astronomical objects, facilitating transient source analysis.

Contribution

It introduces a seamless, self-consistent web interface for accessing and analyzing multi-mission observational data of transient sources.

Findings

Supports data from XMM-Newton, INTEGRAL, and other missions.

Provides downloadable tables and plots of fluxes and upper limits.

Enhances transient source identification and cataloging.

Abstract

The advent of all-sky facilities, such as the Neil Gehrels Swift observatory, the All Sky Automated Search for Supernovae (ASASSN), eROSITA and Gaia has led to a new appreciation of the importance of transient sources in solving outstanding astrophysical questions. Identification and catalogue cross-matching of transients has been eased over the last two decades by the Virtual Observatory but we still lack a client capable of providing a seamless, self-consistent, analysis of all observations made of a particular object by current and historical facilities. HILIGT is a web-based interface which polls individual servers written for XMM-Newton, INTEGRAL and other missions, to find the fluxes, or upper limits, from all observations made of a given target. These measurements are displayed as a table or a time series plot, which may be downloaded in a variety of formats. HILIGT currently works with data from X-ray and Gamma-ray observatories.