• Corpus ID: 250113572

The 511-CAM Mission: A Pointed 511 keV Gamma-Ray Telescope with a Focal Plane Detector Made of Stacked Transition Edge Sensor Microcalorimeter Arrays

@inproceedings{Shirazi2022The5M,
  title={The 511-CAM Mission: A Pointed 511 keV Gamma-Ray Telescope with a Focal Plane Detector Made of Stacked Transition Edge Sensor Microcalorimeter Arrays},
  author={Farzane Shirazi and Md Arman Hossen and Daniel T. Becker and Daniel R. Schmidt and Daniel S Swetz and Douglas A. Bennett and Dana L Braun and Ephraim Gau and Fabian Kislat and Johnathon D. Gard and John A. B. Mates and Joel C. Weber and Nicole Rodriguez Cavero and Sohee Chun and Lindsey Lisalda and A. West and Bhupal Dev and Francesc Ferrer and Richard G. Bose and J. N. Ullom and Henric Krawczynski},
  year={2022}
}
. The 511 keV γ -ray emission from the galactic center region may fully or partially originate from the annihilation of positrons from dark matter particles with electrons from the interstellar medium. Alternatively, the positrons could be created by astrophysical sources, involving exclusively standard model physics. We describe here a new concept for a 511 keV mission called 511-CAM (511 keV gamma-ray CAmera using Micro-calorimeters) that combines focusing γ -ray optics with a stack of… 
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References

SHOWING 1-10 OF 79 REFERENCES

Detection of the 511 keV Galactic Positron Annihilation Line with COSI

The signature of positron annihilation, namely the 511 keV γ-ray line, was first detected coming from the direction of the Galactic center in the 1970s, but the source of Galactic positrons still

The 511 keV emission from positron annihilation in the Galaxy

The first $\ensuremath{\gamma}$-ray line originating from outside the Solar System that was ever detected is the 511 keV emission from positron annihilation in the Galaxy. Despite 30 years of intense

Hard x-ray/soft gamma-ray telescope designs for future astrophysics missions

We present several concept designs of hard X-ray/soft λ-ray focusing telescopes for future astrophysics missions. The designs are based on depth graded multilayer coatings. These have been

Imaging the 511 keV Positron Annihilation Sky with COSI

The balloon-borne Compton Spectrometer and Imager (COSI) had a successful 46-day flight in 2016. The instrument is sensitive to photons in the energy range 0.2–5 MeV. Compton telescopes have the

Positron annihilation spectrum from the Galactic Centre region observed by SPI/INTEGRAL, revisited: annihilation in a cooling ISM?

We analyse SPI/INTEGRAL data on the 511 keV line from the Galactic Centre, accumulated over ∼6 years of observations. We decompose the X-ray and soft gammaray emission of the central part of the

Search for 511 keV emission in satellite galaxies of the Milky Way with INTEGRAL/SPI

Context: The positron (e+) annihilation γ-ray signal in the Milky Way (MW) shows a puzzling morphology: a very bright bulge and a very low surface-brightness disk. A coherent explanation of the e+

The all-sky distribution of 511 keV electron-positron annihilation emission

We present a map of 511 keV electron-positron annihilation emission, based on data accumulated with the SPI spectrometer aboard ESA's INTEGRAL gamma-ray observatory, that covers approximately 95% of

Performance simulation of the soft gamma-ray concentrator

Abstract. The soft gamma-ray concentrator is a telescope mission concept utilizing a suitable arrangement of bent multilayer structures of alternating low- and high-density materials. This lens is

OSSE Mapping of Galactic 511 keV Positron Annihilation Line Emission

The Oriented Scintillation Spectrometer Experiment (OSSE) observations of the Galactic plane and Galactic center region have been combined with scanning observations by the Transient Gamma-Ray

An asymmetric distribution of positrons in the Galactic disk revealed by γ-rays

Positron production at this level from hard LMXBs in the Galactic bulge would reduce (and possibly eliminate) the need for more exotic explanations, such as those involving dark matter.
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