Sky visibility analysis for astrophysical data return maximization in HERMES constellation

Colagrossi, Andrea; Prinetto, Jacopo; Silvestrini, Stefano; Lavagna, Michèle

doi:10.1117/1.jatis.6.4.048001

Cited by 19 publications

(31 citation statements)

References 12 publications

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“…The Italian High Energy Rapid Modular Ensemble of Satellites (HERMES) mission will be a constellation of CubeSats, where each satellite will carry a detector sensitive in the energy range of 2 keV-1 MeV [28]. The demonstration mission is expected to be launched in 2022 and will consist of 7 satellites.…”

Section: Microsatellite Payload Studymentioning

confidence: 99%

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

Dániel¹,

Marsikova

Hudec

et al. 2022

Universe

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This paper presents microsatellite spacecraft payload study for prompt observation of transient astrophysical objects in X-ray energy range. By combining telescope concepts and miniaturized detectors, the small spacecraft will be able to probe the X-ray temporal emissions of bright events such as Gamma-Ray Bursts (GRBs), X-ray transients or the electromagnetic counterparts of Gravitational Wave Events (GWEs), but also short and long term observations of other types of variable X-ray sources. The spacecraft is based on the CubeSat nanosatellite platform with a volume of 16U. The spacecraft carries two types of X-ray telescopes onboard. The first is intended for X-ray transient monitoring and localization, and the second for detailed spectroscopic observation. The X-ray monitor/localization telescope with wide field of view of several arc degrees is used for localization and flux measurement of X-ray transients, as well as for permanent monitoring of Galactic center area. This telescope is based on Lobster Eye X-ray optics together with pixel detector based on the Timepix3 Quad detector. Rapid follow-up observation by soft X-ray spectroscopy is enabled by a second X-ray spectroscopic telescope with limited FOV (Field of View) of several arcmins with no spatial and/or angular resolution. The spectroscopic telescope uses condenser optics based on replicated parabolic total reflection system (or, alternatively, Wolter system) and a Ketek X-ray SDD detector with energy resolution of about 130 eV as a detector. In addition to technical and instrumental aspects, observational strategy and astrophysical issues and justifications are also addressed in the paper.

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Section: Microsatellite Payload Studymentioning

confidence: 99%

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

Dániel¹,

Marsikova

Hudec

et al. 2022

Universe

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“…A more extensive description of HERMES mission concept is given in other proceedings in this volume. [2][3][4]…”

Section: Hermes Mission Conceptmentioning

confidence: 99%

An innovative architecture for a wide band transient monitor on board the HERMES nano-satellite constellation

Fuschino,

Campana,

Labanti

et al. 2021

Preprint

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The HERMES-TP/SP mission, based on a nanosatellite constellation, has very stringent constraints of sensitivity and compactness, and requires an innovative wide energy range instrument. The instrument technology is based on the "siswich" concept, in which custom-designed, low-noise Silicon Drift Detectors are used to simultaneously detect soft X-rays and to readout the optical light produced by the interaction of higher energy photons in GAGG:Ce scintillators. To preserve the inherent excellent spectroscopic performances of SDDs, advanced readout electronics is necessary. In this paper, the HERMES detector architecture concept will be described in detail, as well as the specifically developed front-end ASICs (LYRA-FE and LYRA-BE) and integration solutions. The experimental performance of the integrated system composed by scintillator+SDD+LYRA ASIC will be discussed, demonstrating that the requirements of a wide energy range sensitivity, from 2 keV up to 2 MeV, are met in a compact instrument.

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“…Each individual HERMES pathfinder payload should be able to detect >150 GRBs per year, ~10% of which should be short GRBs [36]. Of course, the number of GRB observed by at least three satellites is lower than this figure, and strongly depend on the optimization procedures [27]. Once a GRB is observed by three or more satellites its position in the sky can be reconstructed using the arrival delay time of the photons on different detectors.…”

Section: Expected Performances and Trade-off Studies For The Choice O...mentioning

confidence: 99%

“…Once a GRB is observed by three or more satellites its position in the sky can be reconstructed using the arrival delay time of the photons on different detectors. [14] presents a detailed analysis of the localization performances expected using the optimizations at the basis of the [27] simulated mission analysis. This is aimed at maximizing the total number of GRBs observed simultaneously by at least three satellites with a minimum projected baseline higher that a reference value.…”

Section: Expected Performances and Trade-off Studies For The Choice O...mentioning

confidence: 99%

See 1 more Smart Citation

The HERMES-technologic and scientific pathfinder

Fiore¹,

Burderi²,

Lavagna³

et al. 2020

Space Telescopes and Instrumentation 2020: Ultraviolet to Gamma Ray

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HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites Technologic and Scientific Pathfinder) is a constellation of six 3U nano-satellites hosting simple but innovative X-ray detectors, characterized by a large energy band and excellent temporal resolution, and thus optimized for the monitoring of Cosmic High Energy transients such as Gamma Ray Bursts and the electromagnetic counterparts of Gravitational Wave Events, and for the determination of their positions. The projects are funded by the Italian Ministry of University and Research and by the Italian Space Agency, and by the European Union's Horizon 2020 Research and Innovation Program under Grant Agreement No. 821896. HERMES-TP/SP is an in-orbit demonstration, that should be tested starting from 2022. It is intrinsically a modular experiment that can be naturally expanded to provide a global, sensitive all sky monitor for high-energy transients.

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Sky visibility analysis for astrophysical data return maximization in HERMES constellation

Cited by 19 publications

References 12 publications

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

Small Spacecraft Payload Study for X-ray Astrophysics including GRB Science

An innovative architecture for a wide band transient monitor on board the HERMES nano-satellite constellation

The HERMES-technologic and scientific pathfinder

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