HERMES: Gamma-ray burst and gravitational wave counterpart hunter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00138382" target="_blank" >RIV/00216224:14310/24:00138382 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.aanda.org/articles/aa/full_html/2024/09/aa50006-24/aa50006-24.html" target="_blank" >https://www.aanda.org/articles/aa/full_html/2024/09/aa50006-24/aa50006-24.html</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/0004-6361/202450006" target="_blank" >10.1051/0004-6361/202450006</a>

Jazyk výsledku

angličtina

Název v původním jazyce

HERMES: Gamma-ray burst and gravitational wave counterpart hunter

Popis výsledku v původním jazyce

Gamma-ray bursts (GRBs) bridge relativistic astrophysics and multimessenger astronomy. Space–based γ- and X-ray wide-field detectors have proven essential for detecting and localizing the highly variable GRB prompt emission, which is also a counterpart of gravitational wave events. We studied the capability of detecting long and short GRBs with the High Energy Rapid Modular Ensemble of Satellites (HERMES) Pathfinder (HP) and SpIRIT, namely a swarm of six 3U CubeSats to be launched in early 2025, and a 6U CubeSat launched on December 1 2023. We also studied the capabilities of two advanced configurations of swarms of more than eight satellites with improved detector performances (HERMES Constellations). The HERMES detectors, sensitive down to ∼2–3 keV, will be able to detect faint and soft GRBs, which comprise X-ray flashes and high-redshift bursts. By combining state-of-the-art long- and short-GRB population models with a description of the single module performance, we estimate that HP will detect ∼195−21+22 long GRBs (3.4−0.8+0.3 at redshift z &gt; 6) and ∼19−3+5 short GRBs per year. The larger HERMES Constellations under study can detect between ∼1300 and ∼3000 long GRBs per year and between ∼160 and ∼400 short GRBs per year, depending on the chosen configuration, with a rate of long GRBs above z &gt; 6 of between 30 and 75 per year. Finally, we explored the capability of HERMES to detect short GRBs as electromagnetic counterparts of binary neutron star (BNS) mergers detected as gravitational signals by current and future ground–based interferometers. Under the assumption that the GRB jets are structured, we estimate that HP can provide up to ∼1 (14) yr−1 joint detections during the fifth LIGO–Virgo–KAGRA observing run (Einstein Telescope single triangle 10 km arm configuration). These numbers become ∼4 (100) yr−1, respectively, for the HERMES Constellation configuration.

Název v anglickém jazyce

HERMES: Gamma-ray burst and gravitational wave counterpart hunter

Popis výsledku anglicky

Gamma-ray bursts (GRBs) bridge relativistic astrophysics and multimessenger astronomy. Space–based γ- and X-ray wide-field detectors have proven essential for detecting and localizing the highly variable GRB prompt emission, which is also a counterpart of gravitational wave events. We studied the capability of detecting long and short GRBs with the High Energy Rapid Modular Ensemble of Satellites (HERMES) Pathfinder (HP) and SpIRIT, namely a swarm of six 3U CubeSats to be launched in early 2025, and a 6U CubeSat launched on December 1 2023. We also studied the capabilities of two advanced configurations of swarms of more than eight satellites with improved detector performances (HERMES Constellations). The HERMES detectors, sensitive down to ∼2–3 keV, will be able to detect faint and soft GRBs, which comprise X-ray flashes and high-redshift bursts. By combining state-of-the-art long- and short-GRB population models with a description of the single module performance, we estimate that HP will detect ∼195−21+22 long GRBs (3.4−0.8+0.3 at redshift z &gt; 6) and ∼19−3+5 short GRBs per year. The larger HERMES Constellations under study can detect between ∼1300 and ∼3000 long GRBs per year and between ∼160 and ∼400 short GRBs per year, depending on the chosen configuration, with a rate of long GRBs above z &gt; 6 of between 30 and 75 per year. Finally, we explored the capability of HERMES to detect short GRBs as electromagnetic counterparts of binary neutron star (BNS) mergers detected as gravitational signals by current and future ground–based interferometers. Under the assumption that the GRB jets are structured, we estimate that HP can provide up to ∼1 (14) yr−1 joint detections during the fifth LIGO–Virgo–KAGRA observing run (Einstein Telescope single triangle 10 km arm configuration). These numbers become ∼4 (100) yr−1, respectively, for the HERMES Constellation configuration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Astronomy and Astrophysics

ISSN

0004-6361

e-ISSN

—

Svazek periodika

689

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

12

Strana od-do

1-12

Kód UT WoS článku

001400091800009

EID výsledku v databázi Scopus

2-s2.0-85204190736