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74 papers · 1 filter
Orbital Period Changes in WZ Sagittae
Joseph Patterson, Geoffrey Stone, Jonathan Kemp +19
We report a long-term (1961-2017) study of the eclipse times in the dwarf nova WZ Sagittae, in an effort to learn its rate of orbital-period change. Some wiggles with a time scale…
Inferring the post-merger gravitational wave emission from binary neutron star coalescences
Katerina Chatziioannou, James Alexander Clark, Andreas Bauswein +3
We present a robust method to characterize the gravitational wave emission from the remnant of a neutron star coalescence. Our approach makes only minimal assumptions about the mor…
Constraining alternative theories of gravity using pulsar timing arrays
Neil J. Cornish, Logan O'Beirne, Stephen R. Taylor +1
The opening of the gravitational wave window by ground-based laser interferometers has made possible many new tests of gravity, including the first constraints on polarization. It…
Is there a UV/X-ray connection in IRAS 13224-3809?
D. J. K. Buisson, A. M. Lohfink, W. N. Alston +16
We present results from the optical, ultraviolet and X-ray monitoring of the NLS1 galaxy IRAS 13224-3809 taken with Swift and XMM-Newton during 2016. IRAS 13224-3809 is the most va…
The Association of Molecular Gas and Natal Super Star Clusters in Henize 2-10
Kelsey E. Johnson, Crystal L. Brogan, Remy Indebetouw +5
We present ALMA observations of the dwarf starburst galaxy Henize 2-10 in combination with previous SMA CO observations to probe the molecular environments of natal super star clus…
Optically discriminating carrier-induced quasiparticle band gap and exciton energy renormalization in monolayer MoS2
Kaiyuan Yao, Aiming Yan, Salman Kahn +7
Optoelectronic excitations in monolayer MoS2 manifest from a hierarchy of electrically tunable, Coulombic free-carrier and excitonic many-body phenomena. Investigating the fundamen…