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Related papers: The NANOGrav 15-year Data Set: Search for Gravitat…
200 papers
We present the results of a Bayesian search for gravitational wave (GW) memory in the NANOGrav 12.5-yr data set. We find no convincing evidence for any gravitational wave memory signals in this data set (Bayes factor = 2.8). As such, we go…
General Relativity and Quantum Cosmology · Physics
2023-07-27
Gabriella Agazie , Zaven Arzoumanian , Paul T. Baker , Bence Bécsy , Laura Blecha , Harsha Blumer , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Rand Burnette , Robin Case , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Megan E. DeCesar , Dallas DeGan , Paul B. Demorest , Timothy Dolch , Brendan Drachler , Justin A. Ellis , Robert D. Ferdman , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Nate Garver-Daniels , Peter A. Gentile , Joseph Glaser , Deborah C. Good , Kayhan Gültekin , Jeffrey S. Hazboun , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Patrick M. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Nihan S. Pol , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Shashwat C. Sardesai , Kai Schmitz , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Sophia V. Sosa Fiscella , Renée Spiewak , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Jerry P. Sun , Joseph K. Swiggum , Jacob Taylor , Stephen R. Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Sarah J. Vigeland , Haley M. Wahl , Caitlin A. Witt , Olivia Young
Pulsar timing array collaborations, such as the North American Nanohertz Observatory for Gravitational Waves (NANOGrav), are seeking to detect nanohertz gravitational waves emitted by supermassive black hole binaries formed in the aftermath…
Astrophysics of Galaxies · Physics
2023-08-02
Zaven Arzoumanian , Paul T. Baker , Laura Blecha , Harsha Blumer , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Bence Bécsy , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Siyuan Chen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Megan E. DeCesar , Paul B. Demorest , Timothy Dolch , Brendan Drachler , Justin A. Ellis , E. C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Nathan Garver-Daniels , Peter A. Gentile , Joseph Glaser , Deborah C. Good , Kayhan Gültekin , Jeffrey S. Hazboun , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Joey Shapiro Key , Nima Laal , Michael T. Lam , William G Lamb , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Dustin R. Madison , Alexander McEwen , Maura A. McLaughlin , Chiara M. F. Mingarelli , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Nihan S. Pol , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena Siwek , Renée Spiewak , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Joseph K. Swiggum , Jessica Sydnor , Stephen R. Taylor , Jacob E. Turner , Michele Vallisneri , Sarah J. Vigeland , Haley M. Wahl , Gregory Walsh , Caitlin A. Witt , Olivia Young
The recent detection of a stochastic signal in the NANOGrav 15-year data set has aroused great interest in uncovering its origin. However, the evidence for the Hellings-Downs correlations, a key signature of the gravitational-wave…
Cosmology and Nongalactic Astrophysics · Physics
2024-05-07
Zu-Cheng Chen , Yu-Mei Wu , Yan-Chen Bi , Qing-Guo Huang
Evidence for a low-frequency stochastic gravitational wave background has recently been reported based on analyses of pulsar timing array data. The most likely source of such a background is a population of supermassive black hole binaries,…
High Energy Astrophysical Phenomena · Physics
2023-07-26
Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Paul T. Baker , Bence Bécsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Robin Case , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Tyler Cohen , James M. Cordes , Neil Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Megan DeCesar , Paul B. Demorest , Matthew C. Digman , Timothy Dolch , Brendan Drachler , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel Freedman , Nathaniel Garver-Daniels , Peter Gentile , Joseph Glaser , Deborah Good , Kayhan Gültekin , Jeffrey Hazboun , Sophie Hourihane , Ross Jennings , Aaron D. Johnson , Megan Jones , Andrew R. Kaiser , David Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey Key , Nima Laal , Michael Lam , William G. Lamb , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Santiago Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin Madison , Alexander McEwen , James W. McKee , Maura McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Chiara M. F. Mingarelli , andrea mitridate , priya natarajan , Cherry Ng , David Nice , Stella Koch Ocker , Ken Olum , Timothy T. Pennucci , Benetge Perera , Polina Petrov , Nihan Pol , Henri A. Radovan , Scott Ransom , Paul S. Ray , Joseph Romano , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena Siwek , Ingrid Stairs , Dan Stinebring , Kevin Stovall , Abhimanyu Susobhanan , Joseph Swiggum , Jacob Taylor , Stephen Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Rutger van Haasteren , Sarah J. Vigeland , Haley M. Wahl , Caitlin Witt , Olivia Young
The mergers of supermassive black hole binaries (SMBHBs) promise to be incredible sources of gravitational waves (GWs). While the oscillatory part of the merger gravitational waveform will be outside the frequency sensitivity range of…
High Energy Astrophysical Phenomena · Physics
2020-02-05
K. Aggarwal , Z. Arzoumanian , P. T. Baker , A. Brazier , P. R. Brook , S. Burke-Spolaor , S. Chatterjee , J. M. Cordes , N. J. Cornish , F. Crawford , H. T. Cromartie , K. Crowter , M. Decesar , P. B. Demorest , T. Dolch , J. A. Ellis , R. D. Ferdman , E. C. Ferrara , E. Fonseca , N. Garver-Daniels , P. Gentile , D. Good , J. S. Hazboun , A. M. Holgado , E. A. Huerta , K. Islo , R. Jennings , G. Jones , M. L. Jones , D. L. Kaplan , L. Z. Kelley , J. S. Key , M. T. Lam , T. J. W. Lazio , L. Levin , D. R. Lorimer , J. Luo , R. S. Lynch , D. R. Madison , M. A. McLaughlin , S. T. McWilliams , C. M. F. Mingarelli , C. Ng , D. J. Nice , T. T. Pennucci , N. S. Pol , S. M. Ransom , P. S. Ray , X. Siemens , J. Simon , R. Spiewak , I. H. Stairs , D. R. Stinebring , K. Stovall , J. K. Swiggum , S. R. Taylor , M. Vallisneri , R. Van Haasterer , S. J. Vigeland , C. A. Witt , W. W. Zhu
We search NANOGrav's 12.5-year data set for evidence of a gravitational wave background (GWB) with all the spatial correlations allowed by general metric theories of gravity. We find no substantial evidence in favor of the existence of such…
General Relativity and Quantum Cosmology · Physics
2021-12-20
Zaven Arzoumanian , Paul T. Baker , Harsha Blumer , Bence Becsy , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Maria Charisi , Shami Chatterjee , Siyuan Chen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Megan E. DeCesar , Dallas M. DeGan , Paul B. Demorest , Timothy Dolch , Brendan Drachler , Justin A. Ellis , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Nathan Garver-Daniels , Peter A. Gentile , Deborah C. Good , Jeffrey S. Hazboun , A. Miguel Holgado , Kristina Islo , Ross J. Jennings , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Joey Shapiro Key , Nima Laal , Michael T. Lam , T. Joseph W. Lazio , Duncan R. Lorimer , Tingting Liu , Jing Luo , Ryan S. Lynch , Dustin R. Madison , Alexander McEwen , Maura A. McLaughlin , Chiara M. F. Mingarelli , Cherry Ng , David J. Nice , Ken D. Olum , Timothy T. Pennucci , Nihan S. Pol , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Shashwat C. Sardesai , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Renee Spiewak , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Jerry P. Sun , Joseph K. Swiggum , Stephen R. Taylor , Jacob E. Turner , Michele Vallisneri , Sarah J. Vigeland , Haley M. Wahl , Caitlin A. Witt
The recently detected stochastic signal by several pulsar timing array collaborations, offers an opportunity to scrutinize the fundamental properties of gravity, including the potential mass of the graviton. In this study, we analyze the…
Cosmology and Nongalactic Astrophysics · Physics
2025-03-28
Yu-Mei Wu , Zu-Cheng Chen , Yan-Chen Bi , Qing-Guo Huang
We report multiple lines of evidence for a stochastic signal that is correlated among 67 pulsars from the 15-year pulsar-timing data set collected by the North American Nanohertz Observatory for Gravitational Waves. The correlations follow…
High Energy Astrophysical Phenomena · Physics
2023-06-29
Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Paul T. Baker , Bence Becsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Rand Burnette , Robin Case , Maria Charisi , Shami Chatterjee , Katerina Chatziioannou , Belinda D. Cheeseboro , Siyuan Chen , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Curt J. Cutler , Megan E. DeCesar , Dallas DeGan , Paul B. Demorest , Heling Deng , Timothy Dolch , Brendan Drachler , Justin A. Ellis , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Nate Garver-Daniels , Peter A. Gentile , Kyle A. Gersbach , Joseph Glaser , Deborah C. Good , Kayhan Gultekin , Jeffrey S. Hazboun , Sophie Hourihane , Kristina Islo , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Tonia C. Klein , Nima Laal , Michael T. Lam , William G. Lamb , T. Joseph W. Lazio , Natalia Lewandowska , Tyson B. Littenberg , Tingting Liu , Andrea Lommen , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Margaret A. Mattson , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Priyamvada Natarajan , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Polina Petrov , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Levi Schult , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Jerry P. Sun , Abhimanyu Susobhanan , Joseph K. Swiggum , Jacob Taylor , Stephen R. Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Rutger van Haasteren , Sarah J. Vigeland , Haley M. Wahl , Qiaohong Wang , Caitlin A. Witt , Olivia Young
The recently reported signal of common red noise between pulsars by several pulsar timing array collaborations has been thought as evidence of the stochastic gravitational wave background (SGWB) due to the Helling-Downs correlation. In this…
Gravitational waves offer a new window to probe the nature of gravity, including answering if the mediating particle, graviton, has a non-zero mass or not. Pulsar timing arrays measure stochastic gravitational wave background (SGWB) at…
General Relativity and Quantum Cosmology · Physics
2025-03-28
Yu-Mei Wu , Zu-Cheng Chen , Qing-Guo Huang
Among efforts to detect gravitational radiation, pulsar timing arrays are uniquely poised to detect "memory" signatures, permanent perturbations in spacetime from highly energetic astrophysical events such as mergers of supermassive black…
Astrophysics of Galaxies · Physics
2015-09-23
Z. Arzoumanian , A. Brazier , S. Burke-Spolaor , S. J. Chamberlin , S. Chatterjee , B. Christy , J. M. Cordes , N. J. Cornish , P. B. Demorest , X. Deng , T. Dolch , J. A. Ellis , R. D. Ferdman , E. Fonseca , N. Garver-Daniels , F. Jenet , G. Jones , V. M. Kaspi , M. Koop , M. T. Lam , T. J. W. Lazio , L. Levin , A. N. Lommen , D. R. Lorimer , J. Luo , R. S. Lynch , D. R. Madison , M. A. McLaughlin , S. T. McWilliams , D. J. Nice , N. Palliyaguru , T. T. Pennucci , S. M. Ransom , X. Siemens , I. H. Stairs , D. R. Stinebring , K. Stovall , J. Swiggum , M. Vallisneri , R. van Haasteren , Y. Wang , W. W. Zhu
Convincing evidence of a stochastic gravitational wave (GW) background has been found by the NANOGrav Collaboration in the 15-year data set. From this signal, we can evaluate the possibility of its source being from the early Universe…
Cosmology and Nongalactic Astrophysics · Physics
2024-08-30
Chris Choi , Jacob Magallanes , Murman Gurgenidze , Tina Kahniashvili
Pulsar-timing-array experiments have reported evidence for a stochastic background of nanohertz gravitational waves consistent with the signal expected from a population of supermassive--black-hole binaries. Their analyses assume power-law…
High Energy Astrophysical Phenomena · Physics
2025-03-17
Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Jeremy George Baier , Paul T. Baker , Bence Bécsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Katerina Chatziioannou , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Megan E. DeCesar , Paul B. Demorest , Heling Deng , Lankeswar Dey , Timothy Dolch , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Emiko C. Gardiner , Nate Garver-Daniels , Peter A. Gentile , Kyle A. Gersbach , Joseph Glaser , Deborah C. Good , Kayhan Gültekin , Jeffrey S. Hazboun , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , Bjorn Larsen , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Jessie C. Runnoe , Alexander Saffer , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Sophia V. Sosa Fiscella , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Abhimanyu Susobhanan , Joseph K. Swiggum , Stephen R. Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Sarah J. Vigeland , Haley M. Wahl , Caitlin A. Witt , David Wright , Olivia Young
We perform the first search for an isotropic non-tensorial gravitational-wave background (GWB) allowed in general metric theories of gravity in the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) 12.5-year data set.…
Cosmology and Nongalactic Astrophysics · Physics
2025-03-28
Zu-Cheng Chen , Chen Yuan , Qing-Guo Huang
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) project currently observes 43 pulsars using the Green Bank and Arecibo radio telescopes. In this work we use a subset of 17 pulsars timed for a span of roughly five…
Astrophysics of Galaxies · Physics
2015-06-19
Z. Arzoumanian , A. Brazier , S. Burke-Spolaor , S. J. Chamberlin , S. Chatterjee , J. M. Cordes , P. B. Demorest , X. Deng , T. Dolch , J. A. Ellis , R. D. Ferdman , N. Garver-Daniels , F. Jenet , G. Jones , V. M. Kaspi , M. Koop , M. Lam , T. J. W. Lazio , A. N. Lommen , D. R. Lorimer , J. Luo , R. S. Lynch , D. R. Madison , M. McLaughlin , S. T. McWilliams , D. J. Nice , N. Palliyaguru , T. T. Pennucci , S. M. Ransom , A. Sesana , X. Siemens , I. H. Stairs , D. R. Stinebring , K. Stovall , J. Swiggum , M. Vallisneri , R. van Haasteren , Y. Wang , W. W. Zhu
The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has reported evidence for the presence of an isotropic nanohertz gravitational wave background (GWB) in its 15 yr dataset. However, if the GWB is produced by a…
High Energy Astrophysical Phenomena · Physics
2023-06-30
Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Paul T. Baker , Bence Bécsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Megan E. DeCesar , Paul B. Demorest , Timothy Dolch , Brendan Drachler , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Emiko Gardiner , Nate Garver-Daniels , Peter A. Gentile , Joseph Glaser , Deborah C. Good , Kayhan Gültekin , Jeffrey S. Hazboun , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Levi Schult , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Abhimanyu Susobhanan , Joseph K. Swiggum , Stephen R. Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Sarah J. Vigeland , Haley M. Wahl , Caitlin A. Witt , Olivia Young
We present the first targeted searches for continuous gravitational waves (CWs) from 114 active galactic nuclei (AGN) that may host supermassive black hole binaries, using the NANOGrav 15 yr data set. By incorporating electromagnetic priors…
High Energy Astrophysical Phenomena · Physics
2026-04-24
Nikita Agarwal , Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Jeremy G. Baier , Paul T. Baker , Bence Becsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Rand Burnette , Robin Case , J. Andrew Casey-Clyde , Yu-Ting Chang , Maria Charisi , Shami Chatterjee , Tyler Cohen , Paolo Coppi , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Megan E. DeCesar , Paul B. Demorest , Heling Deng , Lankeswar Dey , Timothy Dolch , Daniel J. D'Orazio , Ellis Eisenberg , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Emiko C. Gardiner , Nate Garver-Daniels , Peter A. Gentile , Kyle A. Gersbach , Joseph Glaser , Matthew J. Graham , Deborah C. Good , Kayhan Gultekin , C. J. Harris , Jeffrey S. Hazboun , Forrest Hutchison , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , Bjorn Larsen , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Cayenne Matt , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Priyamvada Natarajan , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Polina Petrov , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Jessie C. Runnoe , Alexander Saffer , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Federico Semenzato , Brent J. Shapiro-Albert , Rohan Shivakumar , Xavier Siemens , Joseph Simon , Sophia V. Sosa Fiscella , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Abhimanyu Susobhanan , Joseph K. Swiggum , Jacob A. Taylor , Stephen R. Taylor , Mercedes S. Thompson , Jacob E. Turner , Michele Vallisneri , Rutger van Haasteren , Sarah J. Vigeland , Haley M. Wahl , London Willson , Kevin P. Wilson , Caitlin A. Witt , David Wright , Olivia Young , Qinyuan Zheng
Evidence has emerged for a stochastic signal correlated among 67 pulsars within the 15-year pulsar-timing data set compiled by the NANOGrav collaboration. Similar signals have been found in data from the European, Indian, Parkes, and…
High Energy Astrophysical Phenomena · Physics
2025-05-26
Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Jeremy G. Baier , Paul T. Baker , Bence Becsy , Laura Blecha , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , J. Andrew Casey-Clyde , Maria Charisi , Shami Chatterjee , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Megan E. DeCesar , Paul B. Demorest , Heling Deng , Lankeswar Dey , Timothy Dolch , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Emiko C. Gardiner , Nate Garver-Daniels , Peter A. Gentile , Kyle A. Gersbach , Joseph Glaser , Deborah C. Good , Lydia Guertin , Kayhan Gultekin , Jeffrey S. Hazboun , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , Bjorn Larsen , T. Joseph W. Lazio , Natalia Lewandowska , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Hannah Middleton , Chiara M. F. Mingarelli , Andrea Mitridate , Christopher J. Moore , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Jessie C. Runnoe , Alexander Saffer , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Sophia V. Sosa Fiscella , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Abhimanyu Susobhanan , Joseph K. Swiggum , Stephen R. Taylor , Jacob E. Turner , Caner Unal , Michele Vallisneri , Alberto Vecchio , Sarah J. Vigeland , Haley M. Wahl , Caitlin A. Witt , David Wright , Olivia Young
We search for a first-order phase transition gravitational wave signal in 45 pulsars from the NANOGrav 12.5 year dataset. We find that the data can be modeled in terms of a strong first order phase transition taking place at temperatures…
Cosmology and Nongalactic Astrophysics · Physics
2022-01-12
Zaven Arzoumanian , Paul T. Baker , Harsha Blumer , Bence Bécsy , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Maria Charisi , Shami Chatterjee , Siyuan Chen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Megan E. DeCesar , Paul B. Demorest , Timothy Dolch , Justin A. Ellis , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Nathan Garver-Daniels , Peter A. Gentile , Deborah C. Good , Jeffrey S. Hazboun , A. Miguel Holgado , Kristina Islo , Ross J. Jennings , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Joey Shapiro Key , Nima Laal , Michael T. Lam , T. Joseph W. Lazio , Vincent S. H. Lee , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Dustin R. Madison , Maura A. McLaughlin , Chiara M. F. Mingarelli , Andrea Mitridate , Cherry Ng , David J. Nice , Timothy T. Pennucci , Nihan S. Pol , Scott M. Ransom , Paul S. Ray , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Renée Spiewak , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Jerry P. Sun , Joseph K. Swiggum , Stephen R. Taylor , Jacob E. Turner , Michele Vallisneri , Sarah J. Vigeland , Caitlin A. Witt , Kathryn M. Zurek
The 15-year 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…
High Energy Astrophysical Phenomena · Physics
2023-06-29
Adeela Afzal , Gabriella Agazie , Akash Anumarlapudi , Anne M. Archibald , Zaven Arzoumanian , Paul T. Baker , Bence Bécsy , Jose Juan Blanco-Pillado , Laura Blecha , Kimberly K. Boddy , Adam Brazier , Paul R. Brook , Sarah Burke-Spolaor , Rand Burnette , Robin Case , Maria Charisi , Shami Chatterjee , Katerina Chatziioannou , Belinda D. Cheeseboro , Siyuan Chen , Tyler Cohen , James M. Cordes , Neil J. Cornish , Fronefield Crawford , H. Thankful Cromartie , Kathryn Crowter , Curt J. Cutler , Megan E. DeCesar , Dallas DeGan , Paul B. Demorest , Heling Deng , Timothy Dolch , Brendan Drachler , Richard von Eckardstein , Elizabeth C. Ferrara , William Fiore , Emmanuel Fonseca , Gabriel E. Freedman , Nate Garver-Daniels , Peter A. Gentile , Kyle A. Gersbach , Joseph Glaser , Deborah C. Good , Lydia Guertin , Kayhan Gültekin , Jeffrey S. Hazboun , Sophie Hourihane , Kristina Islo , Ross J. Jennings , Aaron D. Johnson , Megan L. Jones , Andrew R. Kaiser , David L. Kaplan , Luke Zoltan Kelley , Matthew Kerr , Joey S. Key , Nima Laal , Michael T. Lam , William G. Lamb , T. Joseph W. Lazio , Vincent S. H. Lee , Natalia Lewandowska , Rafael R. Lino dos Santos , Tyson B. Littenberg , Tingting Liu , Duncan R. Lorimer , Jing Luo , Ryan S. Lynch , Chung-Pei Ma , Dustin R. Madison , Alexander McEwen , James W. McKee , Maura A. McLaughlin , Natasha McMann , Bradley W. Meyers , Patrick M. Meyers , Chiara M. F. Mingarelli , Andrea Mitridate , Jonathan Nay , Priyamvada Natarajan , Cherry Ng , David J. Nice , Stella Koch Ocker , Ken D. Olum , Timothy T. Pennucci , Benetge B. P. Perera , Polina Petrov , Nihan S. Pol , Henri A. Radovan , Scott M. Ransom , Paul S. Ray , Joseph D. Romano , Shashwat C. Sardesai , Ann Schmiedekamp , Carl Schmiedekamp , Kai Schmitz , Tobias Schröder , Levi Schult , Brent J. Shapiro-Albert , Xavier Siemens , Joseph Simon , Magdalena S. Siwek , Ingrid H. Stairs , Daniel R. Stinebring , Kevin Stovall , Peter Stratmann , Jerry P. Sun , Abhimanyu Susobhanan , Joseph K. Swiggum , Jacob Taylor , Stephen R. Taylor , Tanner Trickle , Jacob E. Turner , Caner Unal , Michele Vallisneri , Sonali Verma , Sarah J. Vigeland , Haley M. Wahl , Qiaohong Wang , Caitlin A. Witt , David Wright , Olivia Young , Kathryn M. Zurek