Gravity gradient noise from asteroids

Fedderke, Michael A.; Graham, Peter W.; Rajendran, Surjeet

doi:10.1103/physrevd.103.103017

Cited by 21 publications

(50 citation statements)

References 35 publications

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“…DM which can cool via emission of dark radiation will be more susceptible to collapse, and is likely to be more strongly constrained than models possessing only elastic cooling. Another particularly interesting case is electrically charged particles [67] or magnetic monopoles. Ultra-heavy monopoles and anti-monopoles could be captured in a WD and subsequently annihilate, igniting SN-we estimate that such a process can be used to place constraints on the flux of galactic monopoles ex-ceeding current limits [68].…”

Section: Discussionmentioning

confidence: 99%

Type Ia supernovae from dark matter core collapse

2019

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Dark matter (DM) which sufficiently heats a local region in a white dwarf will trigger runaway fusion, igniting a type Ia supernova (SN). In a companion paper, this instability was used to constrain DM heavier than 10 16 GeV which ignites SN through the violent interaction of one or two individual DM particles with the stellar medium. Here we study the ignition of supernovae by the formation and self-gravitational collapse of a DM core containing many DM particles. For non-annihilating DM, such a core collapse may lead to a mini black hole that can ignite SN through the emission of Hawking radiation, or possibly as a by-product of accretion. For annihilating DM, core collapse leads to an increasing annihilation rate and can ignite SN through a large number of rapid annihilations. These processes extend the previously derived constraints on DM to masses as low as 10 5 GeV.

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Section: Discussionmentioning

confidence: 99%

Type Ia supernovae from dark matter core collapse

2019

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“…We also show the sensitivities to a stochastic background through power-law-integrated (PI) curves [39] as thicker solid lines, again indicating the impact of GGN on these predictions by thick dashed lines. In the case of AION-km, we see that the PI sensitivity is impacted at low frequencies 10 −6 by the estimated GGN from asteroids [36], but we emphasize that there may also be important sources of instrumental noise at low frequencies, as well as other sources of GGN.…”

Section: (A) a Terrestrial Project: Aionmentioning

confidence: 69%

“…The solid thick lines show the sensitivities to stochastic backgrounds with power-law-integrated (PI) curves while the impact of unmitigated GGN is again shown as a dashed curve. We also show the GGN generated by asteroids[36] at low frequencies, as well as the noise due to unresolved galactic and extragalactic binaries. (Online version in colour.…”

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confidence: 98%

Prospective sensitivities of atom interferometers to gravitational waves and ultralight dark matter

Badurina

Buchmueller

Ellis

et al. 2021

Phil. Trans. R. Soc. A.

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We survey the prospective sensitivities of terrestrial and space-borne atom interferometers to gravitational waves generated by cosmological and astrophysical sources, and to ultralight dark matter. We discuss the backgrounds from gravitational gradient noise in terrestrial detectors, and also binary pulsar and asteroid backgrounds in space-borne detectors. We compare the sensitivities of LIGO and LISA with those of the 100 m and 1 km stages of the AION terrestrial AI project, as well as two options for the proposed AEDGE AI space mission with cold atom clouds either inside or outside the spacecraft, considering as possible sources the mergers of black holes and neutron stars, supernovae, phase transitions in the early Universe, cosmic strings and quantum fluctuations in the early Universe that could have generated primordial black holes. We also review the capabilities of AION and AEDGE for detecting coherent waves of ultralight scalar dark matter. AION-REPORT/2021-04 KCL-PH-TH/2021-61, CERN-TH-2021-116 This article is part of the theme issue ‘Quantum technologies in particle physics’.

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“…−1 with θ = θ(t) the angle about the orbit from perihelion (which by Kepler's Third Law of course evolves non-trivially in time for an elliptical orbit; see, e.g., the discussion in Appendix A.4 of Ref. [56]). This means that we can take r = a with −e ≤ δr(t) ≤ +e, and with δr(t) having dominant frequency content near and around inner Solar System orbital frequencies ∼ 10 −8 Hz-10 −7 Hz (i.e.…”

Section: Physical Parametersmentioning

confidence: 99%

“…Proposals utilizing astrometric techniques on large-scale survey data (e.g., Gaia [47] and Roman Space Telescope [48] surveys) are also able to access this band (see, e.g., Refs. [49][50][51][52][53][54][55]), but existing projections indicate that the levels of strain sensitivity attainable are somewhat modest [55]; such approaches are however able to overcome some important noise sources [56] that limit all local-TM-based techniques operating in the inner Solar System below ∼ µHz frequencies. Recent work has also studied how orbital perturbations (of, e.g., binary millisecond pulsars, or the Moon) that arise specifically from a broadband stochastic GW background could access this band [57,58].…”

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confidence: 99%

Asteroids for $μ$Hz gravitational-wave detection

Fedderke,

Graham,

Rajendran

2021

Preprint

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A major challenge for gravitational-wave (GW) detection in the µHz band is engineering a test mass (TM) with sufficiently low acceleration noise. We propose a GW detection concept using asteroids located in the inner Solar System as TMs. Our main purpose is to evaluate the acceleration noise of asteroids in the µHz band. We show that a wide variety of environmental perturbations are small enough to enable an appropriate class of ∼ 10 km-diameter asteroids to be employed as TMs. This would allow a sensitive GW detector in the band (few) × 10 −7 Hz fgw (few) × 10 −5 Hz, reaching strain hc ∼ 10 −19 around fgw ∼ 10 µHz, sufficient to detect a wide variety of sources. To exploit these asteroid TMs, human-engineered base stations could be deployed on multiple asteroids, each equipped with an electromagnetic (EM) transmitter/receiver to permit measurement of variations in the distance between them. We discuss a potential conceptual design with two base stations, each with a space-qualified optical atomic clock measuring the round-trip EM pulse travel time via laser ranging. Tradespace exists to optimize multiple aspects of this mission: for example, using a radio-ranging or interferometric link system instead of laser ranging. This motivates future dedicated technical design study. This mission concept holds exceptional promise for accessing this GW frequency band.

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Gravity gradient noise from asteroids

Cited by 21 publications

References 35 publications

Type Ia supernovae from dark matter core collapse

Type Ia supernovae from dark matter core collapse

Prospective sensitivities of atom interferometers to gravitational waves and ultralight dark matter

Asteroids for $μ$Hz gravitational-wave detection

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