Tracking the X-ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

Kavli Affiliate: Nicola Omodei | First 5 Authors: Adam Ingram, Niek Bollemeijer, Alexandra Veledina, Michal Dovciak, Juri Poutanen | Summary: We report on an observational campaign on the bright black hole X-ray binary Swift J1727.8$-$1613 centered around five observations by the Imaging X-ray Polarimetry Explorer (IXPE). These observations track for the first time the evolution […]


Continue.. Tracking the X-ray Polarization of the Black Hole Transient Swift J1727.8-1613 during a State Transition

End-to-End Modeling of the TDM Readout System for CMB-S4

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: David C. Goldfinger, Zeeshan Ahmed, Darcy R. Barron, W. Bertrand Doriese, Malcolm Durkin | Summary: The CMB-S4 experiment is developing next-generation ground-based microwave telescopes to observe the Cosmic Microwave Background with unprecedented sensitivity. This will require an order of magnitude increase in the 100 mK detector count, […]


Continue.. End-to-End Modeling of the TDM Readout System for CMB-S4

End-to-End Modeling of the TDM Readout System for CMB-S4

Kavli Affiliate: Zeeshan Ahmed | First 5 Authors: David C. Goldfinger, Zeeshan Ahmed, Darcy R. Barron, W. Bertrand Doriese, Malcolm Durkin | Summary: The CMB-S4 experiment is developing next-generation ground-based microwave telescopes to observe the Cosmic Microwave Background with unprecedented sensitivity. This will require an order of magnitude increase in the 100 mK detector count, […]


Continue.. End-to-End Modeling of the TDM Readout System for CMB-S4

End-to-End Modeling of the TDM Readout System for CMB-S4

Kavli Affiliate: Kent Irwin | Summary:The CMB-S4 experiment is developing next-generation ground-based microwave telescopes to observe the Cosmic Microwave Background with unprecedented sensitivity. This will require an order of magnitude increase in the 100 mK detector count, which in turn increases the demands on the readout system. The CMB-S4 readout will use time division multiplexing […]


Continue.. End-to-End Modeling of the TDM Readout System for CMB-S4

Very Local Impact on the Spectrum of Cosmic-Ray Nuclei below 100 TeV

Kavli Affiliate: Igor Moskalenko | Summary:Recent measurements of primary and secondary CR spectra, their arrival directions, and our improved knowledge of the magnetic field geometry around the heliosphere allow us to set a bound on the distance beyond which a puzzling 10-TeV “bump” and certain related spectral features emphcannot originate. The sharpness of the spectral […]


Continue.. Very Local Impact on the Spectrum of Cosmic-Ray Nuclei below 100 TeV