Curt Cutler
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View article: A Tale of Two Black Holes: Multiband Gravitational-wave Measurement of Recoil Kicks
A Tale of Two Black Holes: Multiband Gravitational-wave Measurement of Recoil Kicks Open
The nonlinear dynamics of General Relativity leave their imprint on remnants of black hole mergers in the form of a recoil “kick.” The kick has profound astrophysical implications across the black hole mass spectrum, from stellar-mass to s…
View article: Erratum: “The NANOGrav 15 yr Data Set: Search for Signals from New Physics” (2023, ApJL 951 L11)
Erratum: “The NANOGrav 15 yr Data Set: Search for Signals from New Physics” (2023, ApJL 951 L11) Open
Erratum: "The NANOGrav 15 yr Data Set: Search for Signals from New Physics" (2023, ApJL 951 L11), Adeela Afzal, Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Bence Bécsy, Jose Juan Blanco-Pillad…
View article: A Tale of Two Black Holes: Multiband Gravitational-Wave Measurement of Recoil Kicks
A Tale of Two Black Holes: Multiband Gravitational-Wave Measurement of Recoil Kicks Open
The non-linear dynamics of General Relativity leave their imprint on remnants of black hole mergers in the form of a recoil ``kick''. The kick has profound astrophysical implications across the black hole mass range from stellar to super-m…
View article: Comparing Recent Pulsar Timing Array Results on the Nanohertz Stochastic Gravitational-wave Background
Comparing Recent Pulsar Timing Array Results on the Nanohertz Stochastic Gravitational-wave Background Open
The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohertz gravitational-wave background (GWB). Given that each PTA …
View article: Data-Driven Approaches to Searches for the Technosignatures of Advanced Civilizations
Data-Driven Approaches to Searches for the Technosignatures of Advanced Civilizations Open
Humanity has wondered whether we are alone for millennia. The discovery of life elsewhere in the Universe, particularly intelligent life, would have profound effects, comparable to those of recognizing that the Earth is not the center of t…
View article: The NANOGrav 15 yr Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational-wave Background
The NANOGrav 15 yr Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational-wave Background Open
The NANOGrav 15 yr data set shows evidence for the presence of a low-frequency gravitational-wave background (GWB). While many physical processes can source such low-frequency gravitational waves, here we analyze the signal as coming from …
View article: The NANOGrav 15 yr Data Set: Search for Signals from New Physics
The NANOGrav 15 yr Data Set: Search for Signals from New Physics Open
The 15 yr pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low-frequency gravitational-wave (GW) background. In this paper, we inv…
View article: The NANOGrav 15 yr Data Set: Evidence for a Gravitational-wave Background
The NANOGrav 15 yr Data Set: Evidence for a Gravitational-wave Background Open
We report multiple lines of evidence for a stochastic signal that is correlated among 67 pulsars from the 15 yr pulsar timing data set collected by the North American Nanohertz Observatory for Gravitational Waves. The correlations follow t…
View article: The NANOGrav 15-year Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational Wave Background
The NANOGrav 15-year Data Set: Constraints on Supermassive Black Hole Binaries from the Gravitational Wave Background Open
The NANOGrav 15-year data set shows evidence for the presence of a low-frequency gravitational-wave background (GWB). While many physical processes can source such low-frequency gravitational waves, here we analyze the signal as coming fro…
View article: Nonlocal parameter degeneracy in the intrinsic space of gravitational-wave signals from extreme-mass-ratio inspirals
Nonlocal parameter degeneracy in the intrinsic space of gravitational-wave signals from extreme-mass-ratio inspirals Open
Extreme-mass-ratio inspirals will be prized sources for the upcoming\nspace-based gravitational-wave observatory LISA. The hunt for these is beset by\nmany open theoretical and computational problems in both source modeling and\ndata analy…
View article: Non-local parameter degeneracy in the intrinsic space of gravitational-wave signals from extreme-mass-ratio inspirals
Non-local parameter degeneracy in the intrinsic space of gravitational-wave signals from extreme-mass-ratio inspirals Open
Extreme-mass-ratio inspirals will be prized sources for the upcoming space-based gravitational-wave observatory LISA. The hunt for these is beset by many open theoretical and computational problems in both source modeling and data analysis…
View article: Sensitivity limits of space-based interferometric gravitational wave observatories from the solar wind
Sensitivity limits of space-based interferometric gravitational wave observatories from the solar wind Open
Space-based interferometric gravitational wave instruments such as the\nESA/NASA Laser Interferometer Space Antenna (LISA) observe gravitational waves\nby measuring changes in the light travel time between widely-separated\nspacecraft. One…
View article: Robust numerical computation of the 3D scalar potential field of the cubic Galileon gravity model at solar system scales
Robust numerical computation of the 3D scalar potential field of the cubic Galileon gravity model at solar system scales Open
Direct detection of dark energy or modified gravity may finally be within reach due to ultrasensitive instrumentation such as atom interferometry capable of detecting incredibly small scale accelerations. Forecasts, constraints and measure…
View article: Modeling the Uncertainties of Solar System Ephemerides for Robust Gravitational-wave Searches with Pulsar-timing Arrays
Modeling the Uncertainties of Solar System Ephemerides for Robust Gravitational-wave Searches with Pulsar-timing Arrays Open
The regularity of pulsar emissions becomes apparent once we reference the pulses’ times of arrivals to the inertial rest frame of the solar system. It follows that errors in the determination of Earth's position with respect to the solar s…
View article: Building A Field: The Future of Astronomy with Gravitational Waves, A\n State of The Profession Consideration for Astro2020
Building A Field: The Future of Astronomy with Gravitational Waves, A\n State of The Profession Consideration for Astro2020 Open
Harnessing the sheer discovery potential of gravitational wave astronomy will\nrequire bold, deliberate, and sustained efforts to train and develop the\nrequisite workforce. The next decade requires a strategic plan to build -- from\nthe g…
View article: Building A Field: The Future of Astronomy with Gravitational Waves, A State of The Profession Consideration for Astro2020
Building A Field: The Future of Astronomy with Gravitational Waves, A State of The Profession Consideration for Astro2020 Open
Harnessing the sheer discovery potential of gravitational wave astronomy will require bold, deliberate, and sustained efforts to train and develop the requisite workforce. The next decade requires a strategic plan to build -- from the grou…
View article: The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky
The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky Open
The first terrestrial gravitational wave interferometers have dramatically underscored the scientific value of observing the Universe through an entirely different window, and of folding this new channel of information with traditional ast…
View article: The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky
The Laser Interferometer Space Antenna: Unveiling the Millihertz Gravitational Wave Sky Open
The first terrestrial gravitational wave interferometers have dramatically underscored the scientific value of observing the Universe through an entirely different window, and of folding this new channel of information with traditional ast…
View article: What can we learn from multi-band observations of black hole binaries?
What can we learn from multi-band observations of black hole binaries? Open
We discuss some of the synergies that result when the same black hole (BH) binaries are observed both by space-based and ground-based gravitational-wave (GW) observatories. E.g., we show how combining such GW data sets can break degeneraci…
View article: What we can learn from multi-band observations of black hole binaries
What we can learn from multi-band observations of black hole binaries Open
The LIGO/Virgo gravitational-wave (GW) interferometers have to-date detected ten merging black hole (BH) binaries, some with masses considerably larger than had been anticipated. Stellar-mass BH binaries at the high end of the observed mas…
View article: The Architecture of the LISA Science Analysis
The Architecture of the LISA Science Analysis Open
The space-based gravitational-wave (henceforth, GW!) observatory LISA (Amaro-Seoane et al., 2017) will o˙er unparalleled science returns, including a view of massive black hole mergers up to high redshifts, precision tests of general relat…
View article: Expanding the LISA Horizon from the Ground
Expanding the LISA Horizon from the Ground Open
The Laser Interferometer Space Antenna (LISA) gravitational-wave (GW) observatory will be limited in its ability to detect mergers of binary black holes (BBHs) in the stellar-mass range. A future ground-based detector network, meanwhile, w…
View article: Experimental results from the ST7 mission on LISA Pathfinder
Experimental results from the ST7 mission on LISA Pathfinder Open
The Space Technology 7 Disturbance Reduction System (ST7-DRS) is a NASA technology demonstration payload that operated from January 2016 through July 2017 on the European Space Agency’s (ESA) LISA Pathfinder spacecraft. The joint goal of t…
View article: Solar System Ephemerides, Pulsar Timing, Gravitational Waves, & Navigation
Solar System Ephemerides, Pulsar Timing, Gravitational Waves, & Navigation Open
In-spiraling supermassive black holes should emit gravitational waves, which would produce characteristic distortions in the time of arrival residuals from millisecond pulsars. Multiple national and regional consortia have constructed puls…
View article: Using eigenmode-mixing to measure or constrain the Sun's interior B-field
Using eigenmode-mixing to measure or constrain the Sun's interior B-field Open
Understanding the generation and distribution of the Sun's interior magnetic (B-) field is a longstanding challenge. Here we describe how measurements of the Sun's oscillation eigenfunctions might be used to measure the Sun's interior B-fi…
View article: Laser Interferometer Space Antenna
Laser Interferometer Space Antenna Open
Following the selection of The Gravitational Universe by ESA, and the successful flight of LISA Pathfinder, the LISA Consortium now proposes a 4 year mission in response to ESA's call for missions for L3. The observatory will be based on t…
View article: Laser Interferometer Space Antenna
Laser Interferometer Space Antenna Open
Following the selection of The Gravitational Universe by ESA, and the successful flight of LISA Pathfinder, the LISA Consortium now proposes a 4 year mission in response to ESA's call for missions for L3. The observatory will be based on t…
View article: Free-flight experiments in LISA Pathfinder
Free-flight experiments in LISA Pathfinder Open
The LISA Path finder mission will demonstrate the technology of drag-free test masses for use as inertial references in future space-based gravitational wave detectors. To accomplish this, the Path finder spacecraft will perform drag-free …
View article: Counting and confusion: Bayesian rate estimation with multiple populations
Counting and confusion: Bayesian rate estimation with multiple populations Open
We show how to obtain a Bayesian estimate of the rates or numbers of signal and background events from a set of events when the shapes of the signal and background distributions are known, can be estimated, or approximated; our method work…