Direct detectors for the Einstein inflation probe

Benford, Dominic J.; Moseley, H.; Žmuidzinas, J.

doi:10.1088/1742-6596/155/1/012001

Cited by 7 publications

(5 citation statements)

References 137 publications

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“…14 A possible exception may be the proposed Inflation Probe by NASA [83], dedicated to map the polarization of the Cosmic Microwave Background at 10 À16 Hz (see Figure 1 of Prince et al [12]). Notice also that precision timing of millisecond pulsars may be used for gravitational waves in the range 10 À7 À 10 À9 Hz [28][29][30].…”

Section: A Comment On the Approximation Used For The Harmonic Wave Fumentioning

confidence: 99%

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

Efroimsky¹

2014

ScienceOpen Research

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We analytically compute the long-term orbital variations of a test particle orbiting a central body acted upon by an incident monochromatic plane gravitational wave. We assume that the characteristic size of the perturbed two-body system is much smaller than the wavelength of the wave. Moreover, we also suppose that the wave's frequency n g is much smaller than the particle's orbital one n b . We make neither a priori assumptions about the direction of the wavevector b k nor on the orbital configuration of the particle. While the semi-major axis a is left unaffected, the eccentricity e, the inclination I, the longitude of the ascending node Ω, the longitude of pericenter ϖ and the mean anomaly M undergo non-vanishing long-term changes of the form dW=dt ¼ FðK ij ; e; I; X; xÞ; W ¼ e; I; X; -; M, where K ij ; i; j ¼ 1; 2; 3 are the coefficients of the tidal matrix K. Thus, in addition to the variations of its orientation in space, the shape of the orbit would be altered as well. Strictly speaking, such effects are not secular trends because of the slow modulation introduced by K and by the orbital elements themselves: they exhibit peculiar long-term temporal patterns which would be potentially of help for their detection in multidecadal analyses of extended data records of planetary observations of various kinds. In particular, they could be useful in performing independent tests of the inflation-driven ultra-low gravitational waves whose imprint may have been indirectly detected in the Cosmic Microwave Background by the Earthbased experiment BICEP2. Our calculation holds, in general, for any gravitationally bound two-body system whose orbital frequency n b is much larger than the frequency n g of the external wave, like, e.g., extrasolar planets and the stars orbiting the Galactic black hole. It is also valid for a generic perturbation of tidal type with constant coefficients over timescales of the order of the orbital period of the perturbed particle.

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Section: A Comment On the Approximation Used For The Harmonic Wave Fumentioning

confidence: 99%

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

Efroimsky¹

2014

ScienceOpen Research

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“…13 This is true if the standard Newtonian-Einsteinian laws of gravitation are involved. 14 A possible exception may be the proposed Inflation Probe by NASA [83], dedicated to map the polarization of the Cosmic Microwave Background at 10 À16 Hz (see Figure 1 of Prince et al [12]). Notice also that precision timing of millisecond pulsars may be used for gravitational waves in the range 10 À7 À 10 À9 Hz [28][29][30].…”

Section: A Comment On the Approximation Used For The Harmonic Wave Fumentioning

confidence: 99%

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

2014

ScienceOpen Astronomy &Amp; Astrophysics

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“…MKIDs have rapidly developed and have by now been implemented in various demonstrator instruments working in the millimetric and submillimetric bands [5,6] and promise to be the detectors of choice for future large focal plane missions for astronomy and cosmology [7], thanks to the fact that they are intrinsically multiplexable in the frequency domain.…”

Section: Introductionmentioning

confidence: 99%

Development of Kinetic Inductance Detectors for Cosmic Microwave Background experiments

et al. 2010

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We describe the design, optimization, electrical and optical tests of Microwave Kinetic Inductance Detectors (MKIDs) for the mm-wave range. Our detectors are based on a novel resonator design, and are suitable for ground-based astronomical observations in the 143 GHz atmospheric window. The measured optical Noise Equivalent Power (NEP) at 0.3 K is similar to 10(-16)W/root Hz under a 300 K background load. This is equivalent or better than the performance of the best current bolometric detectors for the 140 GHz atmospheric window, limited by atmospheric noise in the best available sites. We also describe which improvements can be introduced to reduce the NEP of our detector, for lower background applications (narrow band or space-based)

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Direct detectors for the Einstein inflation probe

Cited by 7 publications

References 137 publications

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

Orbital effects of a monochromatic plane gravitational wave with ultra-low frequency incident on a gravitationally bound two-body system

Development of Kinetic Inductance Detectors for Cosmic Microwave Background experiments

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