# The benefit of simultaneous seven-filter imaging: 10 years of GROND observations

## TL;DR

This paper reviews a decade of scientific achievements using the GROND seven-channel imager, highlighting its versatility in various astrophysical research areas beyond its original purpose of gamma-ray burst observations.

## Contribution

It demonstrates the broad scientific impact of the GROND instrument over 10 years, showcasing its utility across multiple astrophysical disciplines.

## Key findings

- Extensive use in diverse research topics including exoplanets, binaries, galaxies, and quasars.
- Successful rapid multi-band imaging for gamma-ray burst afterglows.
- Versatile scheduling and simultaneous multi-band imaging enhance observational efficiency.

## Abstract

A variety of scientific results have been achieved over the last 10 years with the GROND simultaneous 7-channel imager at the 2.2m telescope of the Max-Planck Society at ESO/La Silla. While designed primarily for rapid observations of gamma-ray burst afterglows, the combination of simultaneous imaging in the Sloan g'r'i'z' and near-infrared JHK bands at a medium-sized (2.2m) telescope and the very flexible scheduling possibility has resulted in an extensive use for many other astrophysical research topics, from exoplanets and accreting binaries to galaxies and quasars.