The Extreme Universe Space Observatory on a Super-Pressure Balloon II Mission

Wiencke, L.; Jem-Euso,; Collaborations, Poemma

doi:10.22323/1.358.0466

Cited by 14 publications

(13 citation statements)

References 10 publications

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“…The Extreme Universe Space Observatory -Super Pressure Balloon (EUSO-SPB2) [3] is a cosmic ray detector, acting as a payload on board of a NASA super pressure balloon. EUSO-SPB2 is primarily a technological and scientific pathfinder, see Fig.…”

Section: Missionmentioning

confidence: 99%

EUSO-SPB2 Telescope Optics and Testing

Kungel¹

2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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The Extreme Universe Space Observatory -Super Pressure Balloon (EUSO-SPB2) mission will fly two custom telescopes that feature Schmidt optics to measure Čerenkov-and fluorescence-emission of extensive air-showers from cosmic rays at the PeV and EeV-scale, and search for -neutrinos. Both telescopes have 1-meter diameter apertures and UV/UV-visible sensitivity. The Čerenkov telescope uses a bifocal mirror segment alignment, to distinguish between a direct cosmic ray that hits the camera versus the Čerenkov light from outside the telescope. Telescope integration and laboratory calibration will be performed in Colorado. To estimate the point spread function and efficiency of the integrated telescopes, a test beam system that delivers a 1-meter diameter parallel beam of light is being fabricated. End-to-end tests of the fully integrated instruments will be carried out in a field campaign at dark sites in the Utah desert using cosmic rays, stars, and artificial light sources. Laser tracks have long been used to characterize the performance of fluorescence detectors in the field. For EUSO-SPB2 an improvement in the method that includes a correction for aerosol attenuation is anticipated by using a bi-dynamic Lidar configuration in which both the laser and the telescope are steerable. We plan to conduct these field tests in Fall 2021 and Spring 2022 to accommodate the scheduled launch of EUSO-SPB2 in 2023 from Wanaka, New Zealand.

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Section: Missionmentioning

confidence: 99%

EUSO-SPB2 Telescope Optics and Testing

Kungel¹

2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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“…Various methods including machine learning, were used to search the data for traces of EAS from UHECR, unfortunately no CR candidate was found agreeing with simulations. The collaboration is in the middle of the preparation for a follow-up mission, EUSO-SPB2 [22] with an anticipated launch date of March 2022. This mission expands the science goal to include the measurement of background signals for upward going ν τ -events in support of a future space based UHECR observatory like the Probe of Extreme Energy Multi Messenger Astronomy (POEMMA) [21].…”

Section: Conclusion and Euso-spb2mentioning

confidence: 99%

Results of the EUSO-SPB1 flight

Eser,

Olinto,

Wiencke

2019

Preprint

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The latest and most advanced effort towards a space-based optical cosmic ray detector developed within the Joint Experiment Mission for the Extreme Universe Space Observatory (JEM-EUSO) collaboration was the Extreme Universe Space Observatory on a Super Pressure Balloon (EUSO-SPB1) mission. The EUSO-SPB1 instrument looks for UV light emitted by extensive air showers above the detectors energy threshold of 3 EeV. This detector was launched in 2017 out of Wanaka, New Zealand as a mission of opportunity on a NASA SPB. Over 27 hours of data was taken in air shower detection mode during the 12-day flight over the Pacific Ocean. Besides an overview of the instrument and the mission details, we will show the results of the data analysis of the flight. Methods to search for tracks and other interesting signals were developed and applied to the flight data set revealing different types of events. But no obvious track of a cosmic ray candidate was found. This result is in agreement with a detailed simulation study performed after the flight to include the different conditions. Data of the flown IR camera and weather forecast model were used to determine the cloud conditions within the telescopes FoV. The presented results are also discussed in various separate contributions at this conference. The experience gained during this flight is essential for the preparation of the follow-up mission EUSO-SPB2 which is planned to launch in 2022.

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“…The planned Extreme Universe Space Observatory aboard a Super Pressure Balloon II (EUSO-SPB2) [1] and future Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) [2] missions utilize this concept from sub-orbital and orbital altitudes, respectively, by employing fast imaging (20 ns), Schimdt Optical Cherenkov telescopes to monitor near the Earth limb to capture the bright, beamed Cherenkov emission from Earth-skimming neutrino events.…”

Section: Introductionmentioning

confidence: 99%

Detection of Above the Limb Cosmic Rays in the Optical Cherenkov Regime Using Sub-Orbital and Orbital Instruments

Cummings¹,

Aloisio²,

Eser³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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Many upcoming experiments seek to observe high energy cosmic events while observing from either sub-orbital or orbital altitudes, using the Earth atmosphere as an extremely large instrumental volume, thereby increasing the geometric acceptance of ground-based instruments in addition to supplying uniform exposure in both hemispheres. In particular, the planned Extreme Universe Space Observatory aboard a Super Pressure Balloon-2 (EUSO-SPB2) and future Probe Of Extreme Multi-Messenger Astrophysics (POEMMA) experiments will both utilize UV sensitive optical cameras with nanosecond time resolution and observe near the Earth's limb to attempt to capture the Cherenkov emission produced by upwards going extensive air showers (EASs) sourced from high energy cosmic neutrino interactions in the Earth. In addition, these Cherenkov cameras also have coverage above the Earth limb, allowing access to the Cherenkov emission produced by cosmic rays skimming the Earth atmosphere at high altitudes. We show that sub-orbital and orbital based optical Cherenkov telescopes are quite sensitive to the above the limb cosmic ray signal, in particular the sub-orbital case being sensitive down to PeV scale energies, allowing for high event rates even for short observation periods. We argue that because the properties of the arriving Cherenkov photons are similar for neutrino induced EASs and those induced by above the limb cosmic rays, the latter provides an excellent benchmark for qualifying the technique for neutrino observation with a well understood and guaranteed signal.

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The Extreme Universe Space Observatory on a Super-Pressure Balloon II Mission

Cited by 14 publications

References 10 publications

EUSO-SPB2 Telescope Optics and Testing

EUSO-SPB2 Telescope Optics and Testing

Results of the EUSO-SPB1 flight

Detection of Above the Limb Cosmic Rays in the Optical Cherenkov Regime Using Sub-Orbital and Orbital Instruments

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