NICER Discovery of Millisecond X-ray Pulsations and an Ultracompact Orbit in IGR J17494-3030

Kavli Affiliate: Deepto Chakrabarty | First 5 Authors: Mason Ng, Paul S. Ray, Peter Bult, Deepto Chakrabarty, Gaurava K. Jaisawal | Summary: We report the detection of 376.05 Hz (2.66 ms) coherent X-ray pulsations in NICER observations of a transient outburst of the low-mass X-ray binary IGR J17494-3030 in 2020 October/November. The system is an […]


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Dynamical Masses and Stellar Evolutionary Model Predictions of M-Stars

Kavli Affiliate: Gregory J. Herczeg | First 5 Authors: Jamila Pegues, Ian Czekala, Sean M. Andrews, Karin I. Öberg, Gregory J. Herczeg | Summary: In this era of Gaia and ALMA, dynamical stellar mass measurements provide benchmarks that are independent of observations of stellar characteristics and their uncertainties. These benchmarks can then be used to […]


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Point absorbers in Advanced LIGO

Kavli Affiliate: Lee McCuller | First 5 Authors: Aidan F. Brooks, Gabriele Vajente, Hiro Yamamoto, Rich Abbott, Carl Adams | Summary: Small, highly absorbing points are randomly present on the surfaces of the main interferometer optics in Advanced LIGO. The resulting nano-meter scale thermo-elastic deformations and substrate lenses from these micron-scale absorbers significantly reduces the […]


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Point absorbers in Advanced LIGO

Kavli Affiliate: Richard Mittleman | First 5 Authors: Aidan F. Brooks, Gabriele Vajente, Hiro Yamamoto, Rich Abbott, Carl Adams | Summary: Small, highly absorbing points are randomly present on the surfaces of the main interferometer optics in Advanced LIGO. The resulting nano-meter scale thermo-elastic deformations and substrate lenses from these micron-scale absorbers significantly reduces the […]


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Symmetry energy effect on the secondary component of GW190814 as a neutron star

Kavli Affiliate: Renxin Xu | First 5 Authors: Xuhao Wu, Shishao Bao, Hong Shen, Renxin Xu, | Summary: The secondary component of GW190814 with a mass of 2.50-2.67 $M_{odot}$ may be the lightest black hole or the heaviest neutron star ever observed in a binary compact object system. To explore the possible equation of state […]


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Detector fabrication development for the LiteBIRD satellite mission

Kavli Affiliate: Keith L. Thompson | First 5 Authors: Benjamin Westbrook, Christopher Raum, Shawn Beckman, Adrian T. Lee, Nicole Farias | Summary: LiteBIRD is a JAXA-led strategic Large-Class satellite mission designed to measure the polarization of the cosmic microwave background and cosmic foregrounds from 34 to 448 GHz across the entire sky from L2 in […]


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DESC DC2 Data Release Note

Kavli Affiliate: Eli S. Rykoff | First 5 Authors: LSST Dark Energy Science Collaboration, Bela Abolfathi, Robert Armstrong, Humna Awan, Yadu N. Babuji | Summary: In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the LSST Dark Energy Science Collaboration (LSST DESC) has created a 300 […]


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DESC DC2 Data Release Note

Kavli Affiliate: Seth W. Digel | First 5 Authors: LSST Dark Energy Science Collaboration, Bela Abolfathi, Robert Armstrong, Humna Awan, Yadu N. Babuji | Summary: In preparation for cosmological analyses of the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), the LSST Dark Energy Science Collaboration (LSST DESC) has created a 300 […]


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Rapid accretion state transitions following the tidal disruption event AT2018fyk

Kavli Affiliate: Dheeraj R. Pasham | First 5 Authors: Thomas Wevers, Dheeraj R. Pasham, Sjoert van Velzen, James C. A. Miller-Jones, Phil Uttley | Summary: Following a tidal disruption event (TDE), the accretion rate can evolve from quiescent to near-Eddington levels and back over months – years timescales. This provides a unique opportunity to study […]


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Rapid accretion state transitions following the tidal disruption event AT2018fyk

Kavli Affiliate: Ronald Remillard | First 5 Authors: Thomas Wevers, Dheeraj R. Pasham, Sjoert van Velzen, James C. A. Miller-Jones, Phil Uttley | Summary: Following a tidal disruption event (TDE), the accretion rate can evolve from quiescent to near-Eddington levels and back over months – years timescales. This provides a unique opportunity to study the […]


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