SVOM pointing strategy: how to optimize the redshift measurements?

TL;DR

This paper presents an optimized pointing strategy for the SVOM mission to maximize the number of gamma-ray bursts with measurable redshifts by coordinating space-based detection with ground-based follow-up.

Contribution

It introduces a novel pointing strategy that integrates space and ground constraints to enhance redshift measurement success for GRBs.

Findings

Optimized pointing strategy increases localized GRBs suitable for redshift measurement.

Combining space and ground constraints improves scientific return.

Strategy effectively balances detection and follow-up capabilities.

Abstract

The Sino-French SVOM mission (Space-based multi-band astronomical Variable Objects Monitor) has been designed to detect all known types of gamma-ray bursts (GRBs) and to provide fast and reliable GRB positions. In this study we present the SVOM pointing strategy which should ensure the largest number of localized bursts allowing a redshift measurement. The redshift measurement can only be performed by large telescopes located on Earth. The best scientific return will be achieved if we are able to combine constraints from both space segment (platform and payload) and ground telescopes (visibility).