Hunting for Dark Matter and New Physics with GECCO

Kavli Affiliate: Sven C. Herrmann | First 5 Authors: Adam Coogan, Alexander Moiseev, Logan Morrison, Stefano Profumo, Matthew G. Baring | Summary: We outline the science opportunities in the areas of searches for dark matter and new physics offered by a proposed future MeV gamma-ray telescope, the Galactic Explorer with a Coded Aperture Mask Compton […]


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PSR J1810+1744: Companion Darkening and a Precise High Neutron Star Mass

Kavli Affiliate: Roger W. Romani | First 5 Authors: Roger W. Romani, D. Kandel, Alexei V. Filippenko, Thomas G. Brink, WeiKang Zheng | Summary: Keck-telescope spectrophotometry of the companion of PSR J1810+1744 shows a flat, but asymmetric light-curve maximum and a deep, narrow minimum. The maximum indicates strong gravity darkening near the L_1 point, along […]


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The design of the Ali CMB Polarization Telescope receiver

Kavli Affiliate: Keith L. Thompson, Chao-Lin Kuo | First 5 Authors: Maria Salatino, Jason E. Austermann, Keith L. Thompson, Peter A. R. Ade, Xiran Bai | Summary: Ali CMB Polarization Telescope (AliCPT-1) is the first CMB degree-scale polarimeter to be deployed on the Tibetan plateau at 5,250m above sea level. AliCPT-1 is a 90/150 GHz […]


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The design of the Ali CMB Polarization Telescope receiver

Kavli Affiliate: Keith L. Thompson | First 5 Authors: Maria Salatino, Jason E. Austermann, Keith L. Thompson, Peter A. R. Ade, Xiran Bai | Summary: Ali CMB Polarization Telescope (AliCPT-1) is the first CMB degree-scale polarimeter to be deployed on the Tibetan plateau at 5,250m above sea level. AliCPT-1 is a 90/150 GHz 72 cm […]


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Discovery of soft and hard X-ray time lags in low-mass AGNs

Kavli Affiliate: Daniel R. Wilkins | First 5 Authors: Labani Mallick, Daniel R. Wilkins, William N. Alston, Alex Markowitz, Barbara De Marco | Summary: The scaling relations between the black hole (BH) mass and soft lag properties for both active galactic nuclei (AGNs) and BH X-ray binaries (BHXRBs) suggest the same underlying physical mechanism at […]


Continue.. Discovery of soft and hard X-ray time lags in low-mass AGNs

Discovery of soft and hard X-ray time lags in low-mass AGNs

Kavli Affiliate: Daniel R. Wilkins | First 5 Authors: Labani Mallick, Daniel R. Wilkins, William N. Alston, Alex Markowitz, Barbara De Marco | Summary: The scaling relations between the black hole (BH) mass and soft lag properties for both active galactic nuclei (AGNs) and BH X-ray binaries (BHXRBs) suggest the same underlying physical mechanism at […]


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Measuring $H_0$ using X-ray and SZ effect observations of dynamically relaxed galaxy clusters

Kavli Affiliate: Adam B. Mantz | First 5 Authors: Jenny T. Wan, Adam B. Mantz, Jack Sayers, Steven W. Allen, R. Glenn Morris | Summary: We use a sample of 14 massive, dynamically relaxed galaxy clusters to constrain the Hubble Constant, $H_0$, by combining X-ray and Sunyaev-Zel’dovich (SZ) effect signals measured with Chandra, Planck and […]


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First Star Formation in the Presence of Primordial Magnetic Fields

Kavli Affiliate: Tom Abel | First 5 Authors: Daegene Koh, Tom Abel, Karsten Jedamzik, , | Summary: It has been recently claimed that primordial magnetic fields could relieve the cosmological Hubble tension. We consider the impact of such fields on the formation of the first cosmological objects, mini-halos forming stars, for present-day field strengths in […]


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Enhancing the sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment to low energy signals

Kavli Affiliate: T. A. Shutt | First 5 Authors: D. S. Akerib, A. K. Al Musalhi, S. K. Alsum, C. S. Amarasinghe, A. Ames | Summary: Two-phase xenon detectors, such as that at the core of the forthcoming LZ dark matter experiment, use photomultiplier tubes to sense the primary (S1) and secondary (S2) scintillation signals […]


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Determining Dark Matter-Electron Scattering Rates from the Dielectric Function

Kavli Affiliate: Noah Kurinsky | First 5 Authors: Yonit Hochberg, Yonatan Kahn, Noah Kurinsky, Benjamin V. Lehmann, To Chin Yu | Summary: We show that the rate for dark matter-electron scattering in an arbitrary material is determined by an experimentally measurable quantity, the complex dielectric function, for any dark matter interaction that couples to electron […]


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