A Space-based All-sky MeV γ-ray Survey with the Electron Tracking Compton Camera

Simple item page
dc.contributor.authorHamaguchi, Kenji
dc.contributor.authorTanimori, Toru
dc.contributor.authorTakada, Atsushi
dc.contributor.authorBeacom, John F.
dc.contributor.authorGunji, Shuichi
dc.contributor.authorMori, Masaki
dc.contributor.authorNakamori, Takeshi
dc.contributor.authorShrader, Chris R.
dc.contributor.authorSmith, David M.
dc.contributor.authorTamagawa, Toru
dc.contributor.authorTsurutani, Bruce T.
dc.date.accessioned2019-11-14T16:20:30Z
dc.date.available2019-11-14T16:20:30Z
dc.date.issued2019-07
dc.description.abstractThematic Activity/Project/state of the Profession Consideration Area: A sensitive survey of the MeV γ-ray sky is needed to understand important astrophysical problems such as γ-ray bursts in the early universe, progenitors of Type Ia supernovae, and the nature of dark matter. However, the study has not progressed remarkably since the limited survey by COMPTEL onboard CGRO in the 1990s. Tanimori et al. have developed a Compton camera that tracks the trajectory of each recoil electron in addition to the information obtained by the conventional Compton cameras, leading to superior imaging. This Electron Tracking Compton Camera (ETCC) facilitates accurate reconstruction of the incoming direction of each MeV photon from a wide sky at ∼degree angular resolution and with minimized particle background using trajectory information. The latest ETCC model, SMILE-2+, made successful astronomical observations during a day balloon flight in 2018 April and detected diffuse continuum and 511 keV annihilation line emission from the Galactic Center region at a high significance in ∼2.5 hours. We believe that MeV observations from space with upgraded ETCCs will dramatically improve our knowledge of the MeV universe. We advocate for a space-based all-sky survey mission with multiple ETCCs onboard and detail its expected benefits.en_US
dc.description.urihttps://arxiv.org/abs/1907.06658en_US
dc.format.extent14 pagesen_US
dc.genrejournal articles preprintsen_US
dc.identifierdoi:10.13016/m2eoj3-0myg
dc.identifier.citationKenji Hamaguchi and Toru Tanimori and Atsushi Takada and John F. Beacom and Shuichi Gunji and Masaki Mori and Takeshi Nakamori and Chris R. Shrader and David M. Smith and Toru Tamagawa and Bruce T. Tsurutani, A Space-based All-sky MeV gamma-ray Survey with the Electron Tracking Compton Camera, 2019, https://arxiv.org/abs/1907.06658en_US
dc.identifier.urihttp://hdl.handle.net/11603/16291
dc.language.isoen_USen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.subjectelectron tracking compton cameraen_US
dc.subjectMeV γ-rayen_US
dc.titleA Space-based All-sky MeV γ-ray Survey with the Electron Tracking Compton Cameraen_US
dc.typeTexten_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1907.06658.pdf
Size:
1.22 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.56 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection