Low Radio Frequency Observations from the Moon Enabled by NASA Landed Payload Missions

Burns, Jack O.; MacDowall, R. J.; Bale, S. D.; Hallinan, Gregg; Bassett, Neil; Hegedus, Alexander M.

doi:10.3847/psj/abdfc3

Cited by 22 publications

(9 citation statements)

References 79 publications

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“…In addition, there are a number of significant efforts underway to make these type of measurements [Griessmeier et al, 2011]. Plans are underway to develop an extensive radio observatory on the far side of the moon, named FARSIDE [Burns et al, 2020]. This system is being designed to detect radio emission not only from solar system objects but from stellar radio bursts and the CMI emissions from potentially habitable exoplanets in the frequency range from 0.1-40 MHz, which encompasses both AKR and Io-DAM emission frequencies.…”

Section: Discussionmentioning

confidence: 99%

Magnetospheres of Terrestrial Exoplanets and Exomoons: Implications for Habitability and Detection

Green¹,

Boardsen

Dong

2021

ApJL

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Characterizing habitable exoplanets and/or their moons is of paramount importance. Here we show the results of our magnetic field topological modeling, which demonstrate that terrestrial exoplanet–exomoon coupled magnetospheres work together to protect the early atmospheres of both the exoplanet and the exomoon. When exomoon magnetospheres are within the exoplanet's magnetospheric cavity, the exomoon magnetosphere acts like a protective magnetic bubble providing an additional magnetopause confronting the stellar winds when the moon is on the dayside. In addition, magnetic reconnection would create a critical pathway for the atmosphere exchange between the early exoplanet and exomoon. When the exomoon's magnetosphere is outside of the exoplanet's magnetosphere it then becomes the first line of defense against strong stellar winds, reducing the exoplanet's atmospheric loss to space. A brief discussion is given on how this type of exomoon would modify radio emissions from magnetized exoplanets.

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Section: Discussionmentioning

confidence: 99%

Magnetospheres of Terrestrial Exoplanets and Exomoons: Implications for Habitability and Detection

Green¹,

Boardsen

Dong

2021

ApJL

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“…Several experiments have been proposed or planned to operate in the lunar farside, taking advantage of the pristine environs. These include Dark Ages Polarimeter PathfindER (DAPPER) [Burns et al, 2019b], Lunar Surface Electromagnetics Experiment (LuSEE) [Bale et al, 2020], Dark Ages Reionization Explorer (DARE) [Burns et al, 2012], the , Radio wave Observations at the Lunar Surface of the photoElectron Sheath (ROLSES) [Burns et al, 2021] and FARSIDE [Burns et al, 2019a]. PRATUSH -Probing ReionizA-Tion of the Universe using Signal from Hydrogen is a cosmology experiment from India proposed to detect the global 21-cm signal from CD/EoR in orbit around the moon.…”

Section: Ongoing Global Signal Experimentsmentioning

confidence: 99%

Synthetic Observations with the Square Kilometre Array (SKA) -- development towards an end-to-end pipeline

Mazumder¹,

Datta²,

Rao³

et al. 2022

Preprint

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Detection of the redshifted 21-cm signal of neutral hydrogen from the Cosmic Dawn and the Epoch of Reionization is one of the final frontiers of modern observational cosmology. The inherently faint signal makes it susceptible to contamination by several sources like astrophysical foregrounds and instrumental systematics. Nevertheless, developments achieved in the recent times will combine to make signal detection possible with the upcoming Square Kilometer Array (SKA), both statistically and via tomography. This review describes an indigenously developed end-to-end pipeline that simulates sensitive interferometric observations. It mainly focuses on the requirements for Hi detection in interferometers. In its present form, it can mimic the effects of realistic point source foregrounds and systematics-calibration error and position error on 21-cm observations. The performance of the pipeline is demonstrated for test cases with 0.01% calibration error and position error. Its performance is consistent across telescope, foreground, and signal models. The focus of the simulation pipeline during the initial stages was for EoR science. But since this is a general interferometric simulation pipeline, it will be helpful to the entire SKA user community, irrespective of the science goals.

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“…ROLSES will be delivered to the nearside in 2023. the LuSEE experiment is composed of two separate payloads, LuSEE-lite, which will launch to the south pole farside in 2024, and LuSEE-Night, which will land at a mid-latitude farside location in 2025. All three of these experiments have been selected for flight through NASA's Commercial Lunar Payload Services (CLPS) program (Burns et al 2021). Although lunar observations are free of earth's ionosphere, any potential measurement of the global 21 cm signal still requires extremely careful data analysis.…”

Section: Introductionmentioning

confidence: 99%

Constraining a Model of the Radio Sky Below 6 MHz Using the Parker Solar Probe/FIELDS Instrument in Preparation for Upcoming Lunar-based Experiments

Bassett¹,

Rapetti²,

Nhan³

et al. 2023

Preprint

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We present a Bayesian analysis of data from the FIELDS instrument on board the Parker Solar Probe (PSP) spacecraft with the aim of constraining low frequency ( 6 MHz) sky in preparation for several upcoming lunar-based experiments. We utilize data recorded during PSP's "coning roll" maneuvers, in which the axis of the spacecraft is pointed 45 • off of the Sun. The spacecraft then rotates about a line between the Sun and the spacecraft with a period of 24 minutes. We reduce the data into two formats: roll-averaged, in which the spectra are averaged over the roll, and phase-binned, in which the spectra are binned according to the phase of the roll. We construct a forward model of the FIELDS observations that includes numerical simulations of the antenna beam, an analytic emissivity function of the galaxy, and estimates of the absorption due to free electrons. Fitting 5 parameters, we find that the roll-averaged data can be fit well by this model and we obtain posterior parameter constraints that are in general agreement with previous estimates. The model is not, however, able to fit the phasebinned data well, likely due to limitations such as the lack of non-smooth emission structure at both small and large scales, enforced symmetry between the northern and southern galactic hemispheres, and large uncertainties in the free electron density. This suggests that significant improvement in the low frequency sky model is needed in order to fully and accurately represent the sky at frequencies below 6 MHz.

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Low Radio Frequency Observations from the Moon Enabled by NASA Landed Payload Missions

Cited by 22 publications

References 79 publications

Magnetospheres of Terrestrial Exoplanets and Exomoons: Implications for Habitability and Detection

Magnetospheres of Terrestrial Exoplanets and Exomoons: Implications for Habitability and Detection

Synthetic Observations with the Square Kilometre Array (SKA) -- development towards an end-to-end pipeline

Constraining a Model of the Radio Sky Below 6 MHz Using the Parker Solar Probe/FIELDS Instrument in Preparation for Upcoming Lunar-based Experiments

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