High-resolution x-ray telescopes

O’Dell, Stephen L.; Brissenden, Roger; Davis, William J.; Elsner, Ronald F.; Elvis, M.; Freeman, Mark D.; Gaetz, T. J.; Gorenstein, P.; Gubarev, Mikhail V.; Jerius, D.; Juda, M.; Kolodziejczak, Jeffery J.; Murray, Stephen S.; Petre, Robert; Podgorski, William; Ramsey, Brian D.; Reid, Paul B.; Saha, Timo T.; Schwartz, D. A.; Trolier-McKinstry, Susan; Weisskopf, Martin C.; Wilke, Rudeger H. T.; Wolk, S. J.; Zhang, William W.

doi:10.1117/12.862315

Cited by 14 publications

(3 citation statements)

References 67 publications

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“…If the angular resolution of the detectors in the soft X-ray region (1-100 keV) following [78,79] falls at 4 , they could in principle be detected with the current available resolution of onboard detectors. Furthermore, the differences in polarization angles ψ = (ψ φ − ψ φ ) and in ellipticity angles χ = (χ φ − χ φ ) due to two different interactions also seem to come in the observable range in some energy intervals, as may be observed from the plot in Fig.…”

Section: Statistical Analysis With Data For Numerical Solutionsmentioning

confidence: 99%

Differentiating dilatons from the axions by their mixing with photons

Chaubey,

Jaiswal,

Singh

et al. 2024

Eur. Phys. J. C

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The quanta of scalar fields like the dilaton ($$\phi $$ ϕ ) of scale symmetry origin and those of pseudoscalar fields like the axion ($$\phi '$$ ϕ ′ ) of Peccei–Quinn symmetry origin couple to di-photons through dimension-5 operators. In a magnetized medium (MM), they in principle can interact with the two transverse ($$A_{\parallel ,\perp }$$ A ‖ , ⊥ ) and one longitudinal ($$A_{L}$$ A L ) degree of freedom of photons ($$\gamma $$ γ ) as long as the total spin is conserved. However, of $$\phi $$ ϕ and $$\phi '$$ ϕ ′ , only one interacts with $$A_{L}$$ A L . We found that the ambient external magnetic field B and media break the intrinsic Lorentz symmetry of the system affecting the dispersion relation of the propagating modes. The boost and the rotational symmetry along and around B are however the ones that are preserved. Invoking C, P, and T symmetries, we analyze the mixing dynamics of $$\phi \gamma $$ ϕ γ and $$\phi '\gamma $$ ϕ ′ γ systems and the structural difference in their mixing pattern. It is noted that while the $$\phi \gamma $$ ϕ γ mixing matrix is $$3\times 3$$ 3 × 3 , the $$\phi ^{\prime }\gamma $$ ϕ ′ γ is governed by a $$4\times 4$$ 4 × 4 mixing matrix. Using the exact solutions of both systems in MM, we estimate the strength of the electromagnetic (EM) signals available due to these interactions, which are found to be different in strength. We conclude by commenting on (a) the possibility of detecting this difference in polarimetric observables of the EM signal, (b) the implications of these different mixing patterns with respect to the minimum detectable signal for astrophysical observations, and (c) the variation in the energy of the dispersed photons of different polarization with the variation in B.

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Section: Statistical Analysis With Data For Numerical Solutionsmentioning

confidence: 99%

Differentiating dilatons from the axions by their mixing with photons

Chaubey,

Jaiswal,

Singh

et al. 2024

Eur. Phys. J. C

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“…The high signal to noise coupled with high angular resolution for space-based telescopes has resulted in discoveries related to nearly all types of celestial objects. 1,2 In the soft X-ray (SXR) region (~0.1 to 10 keV), the Chandra X-Ray Observatory has dominated with over 6000 science papers published since its launch in 1999. 3 In the hard X-ray (HXR) region (10 to ~120 keV) the recently launched Nuclear Spectroscopic Telescope Array (NuSTAR) observatory is making a similar impact.…”

Section: Introductionmentioning

confidence: 99%

SuperHERO: the next generation hard x-ray HEROES telescope

et al. 2014

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SuperHERO is a new high-resolution, Long Duration Balloon-capable, hard-x-ray (20-75 keV) focusing telescope for making novel astrophysics and heliophysics observations. The SuperHERO payload, currently in its proposal phase, is being developed jointly by the Astrophysics Office at NASA Marshall Space Flight Center and the Solar Physics Laboratory and the Wallops Flight Facility at NASA Goddard Space Flight Center. SuperHERO is a follow-on payload to the High Energy Replicated Optics to Explore the Sun (HEROES) balloon-borne telescope that recently flew from Fort Sumner, NM in September of 2013, and will utilize many of the same features. Significant enhancements to the HEROES payload will be made, including the addition of optics, novel solid-state multi-pixel CdTe detectors, integration of the Wallops Arc-Second Pointer and a significantly lighter gondola suitable for Long Duration Flights.

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“…In the soft x-ray regime (SXR), from ~0.1 to ~10 keV, focusing x-ray telescopes have made huge strides, culminating in the formation of the Chandra X-ray Observatory. Chandra offers sub-arcsec angular resolution and high-resolution dispersive spectroscopy [1]. Figure 1 shows the evolution in improved angular resolution for multiple missions: XMM-Newton, the Einstein Observatory, the Röntgen Satellite (ROSAT), and Chandra [2].…”

Section: Introductionmentioning

confidence: 99%

SuperHERO: Design of a new hard-X-ray focusing telescope

Gaskin

Elsner

Ramsey

et al. 2015

2015 IEEE Aerospace Conference

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SuperHERO is a hard x-ray (20-75 keV) balloonborne telescope, currently in its proposal phase, that will utilize high angular-resolution grazing-incidence optics, coupled to novel CdTe multi-pixel, fine-pitch (250 µm) detectors. The high-resolution electroformed-nickel, grazing-incidence optics were developed at MSFC, and the detectors were developed at the Rutherford Appleton Laboratory in the UK, and are being readied for flight at GSFC. SuperHERO will use two active pointing systems; one for carrying out astronomical observations and another for solar observations during the same flight. The telescope will reside on a light-weight, carboncomposite structure that will integrate the Wallops Arc Second Pointer into its frame, for arcsecond or better pointing. This configuration will allow for Long Duration Balloon flights that can last up to 4 weeks. This next generation design, which is based on the High Energy Replicated Optics (HERO) and HERO to Explore the Sun (HEROES) payloads, will be discussed, with emphasis on the core telescope components.

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High-resolution x-ray telescopes

Cited by 14 publications

References 67 publications

Differentiating dilatons from the axions by their mixing with photons

Differentiating dilatons from the axions by their mixing with photons

SuperHERO: the next generation hard x-ray HEROES telescope

SuperHERO: Design of a new hard-X-ray focusing telescope

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