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Zaven Arzoumanian

university of maryland baltimore county

67H-index
582Paper Count
1.8WCitation Count
Published Papers 148
Publication Date
Origin of the Stellar Fe Kα Line Clarified with Far-ultraviolet and X-Ray Observations of a Superflare on the RS Canum Venaticorum-type Star UX Arietis
err2026-05-01
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PREAI
errInoue, Shun; Iwakiri, Wataru Buz; Kimura, Tomoki; Enoto, Teruaki; Notsu, Yuta; Uchida, Hiroyuki; Hamaguchi, Kenji; Toriumi, Shin; Yamazaki, Atsushi; Tsuchiya, Fuminori; Murakami, Go; Yoshioka, Kazuo; Arzoumanian, Zaven; Gendreau, Keith
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CHIME-o-Grav: Wideband Timing of Four Millisecond Pulsars from the NANOGrav 15 yr Dataset
err2026-04-21
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errOAAI
errGabriella Y. Agazie; David L. Kaplan; Abhimanyu Susobhanan; Ingrid H. Stairs; Deborah C. Good; Bradley W. Meyers; Emmanuel Fonseca; Timothy T. Pennucci; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Paul T. Baker; Paul R. Brook; Alyssa Cassity; H. Thankful Cromartie; Kathryn Crowter; Megan E. DeCesar; Paul B. Demorest; Timothy Dolch; Fengqiu Adam Dong; Elizabeth C. Ferrara; William Fiore; Gabriel E. Freedman; Nate Garver-Daniels; Peter A. Gentile; Joseph Glaser; Jeffrey S. Hazboun; Ross J. Jennings; Megan L. Jones; Matthew Kerr; Michael T. Lam; Duncan R. Lorimer; Jing Luo; Ryan S. Lynch; Alexander McEwen; James W. McKee; Maura A. McLaughlin; Natasha McMann; Cherry Ng; David J. Nice; Benetge B. P. Perera; Nihan S. Pol; Henri A. Radovan; Scott M. Ransom; Paul S. Ray; Alexander Saffer; Ann Schmiedekamp; Carl Schmiedekamp; Brent J. Shapiro-Albert; Kevin Stovall; Joseph K. Swiggum; Mercedes S. Thompson; Haley M. Wahl
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The Radius of PSR J0437–4715 from NICER Data
err2026-03-27
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errOAAI
errM. C. Miller; A. J. Dittmann; I. M. Holt; F. K. Lamb; C. Chirenti; Z. Arzoumanian; J. Berteaud; S. Bogdanov; K. C. Gendreau; W. C. G. Ho; S. M. Morsink; P. S. Ray; R. A. Remillard; Z. Wadiasingh; M. T. Wolff
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Searching for Exotrojans in Pulsar Systems
err2026-03-13
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errOAAI
errJackson D. Taylor; Emmanuel Fonseca; Lankeswar Dey; Sergey Zharikov; Aida Kirichenko; Joseph Glaser; Gabriella Agazie; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Paul T. Baker; Paul R. Brook; H. Thankful Cromartie; Kathryn Crowter; Megan E. DeCesar; Paul B. Demorest; Timothy Dolch; Elizabeth C. Ferrara; William Fiore; Gabriel E. Freedman; Nate Garver-Daniels; Peter A. Gentile; Deborah C. Good; Jeffrey S. Hazboun; Ross J. Jennings; Megan L. Jones; David L. Kaplan; Matthew Kerr; Michael T. Lam; T. Joseph W. Lazio; Duncan R. Lorimer; Jing Luo; Ryan S. Lynch; Alexander McEwen; Maura A. McLaughlin; Natasha McMann; Bradley W. Meyers; Cherry Ng; David J. Nice; Timothy T. Pennucci; Benetge B. P. Perera; Nihan S. Pol; Henri A. Radovan; Scott M. Ransom; Paul S. Ray; Ann Schmiedekamp; Carl Schmiedekamp; Brent J. Shapiro-Albert; Ingrid H. Stairs; Kevin Stovall; Abhimanyu Susobhanan; Joseph K. Swiggum; Haley M. Wahl
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The NANOGrav 15 yr Dataset: Improved Timing Precision with Very Long Baseline Interferometry Astrometric Priors
err2026-03-02
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errOAAI
errSofia V. Sosa Fiscella; Michael T. Lam; Gabriella Agazie; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Paul T. Baker; Paul R. Brook; H. Thankful Cromartie; Kathryn Crowter; María Silvina De Biasi; Megan E. DeCesar; Paul B. Demorest; Timothy Dolch; Elizabeth C. Ferrara; William Fiore; Emmanuel Fonseca; Gabriel E. Freedman; Nate Garver-Daniels; Peter A. Gentile; Joseph Glaser; Deborah C. Good; Jeffrey S. Hazboun; Ross J. Jennings; Megan L. Jones; David L. Kaplan; Matthew Kerr; Duncan R. Lorimer; Jing Luo; Ryan S. Lynch; Alexander McEwen; Maura A. McLaughlin; Natasha McMann; Bradley W. Meyers; Cherry Ng; David J. Nice; Timothy T. Pennucci; Benetge B. P. Perera; Nihan S. Pol; Henri A. Radovan; Scott M. Ransom; Paul S. Ray; Ann Schmiedekamp; Carl Schmiedekamp; Brent J. Shapiro-Albert; Ingrid H. Stairs; Kevin Stovall; Abhimanyu Susobhanan; Joseph K. Swiggum; Haley M. Wahl
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The NANOGrav 15 yr Dataset: Targeted Searches for Supermassive Black Hole Binaries
err2026-02-05
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errOAAI
errNikita Agarwal; Gabriella Agazie; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Jeremy G. Baier; Paul T. Baker; Bence Bécsy; 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; Graham Doskoch; 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 Gültekin; 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; Shania Nichols; 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; The NANOGrav Collaboration
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Inferring MBH–Mbulge Evolution from the Gravitational-wave Background
err2026-01-22
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errOAAI
errCayenne Matt; Kayhan Gültekin; Luke Zoltan Kelley; Laura Blecha; Joseph Simon; Gabriella Agazie; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Jeremy G. Baier; Paul T. Baker; Bence Bécsy; 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; 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; C. J. Harris; Jeffrey S. Hazboun; Ross J. Jennings; Aaron D. Johnson; Megan L. Jones; David L. Kaplan; 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; 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; Brent J. Shapiro-Albert; Xavier Siemens; Sophia V. Sosa Fiscella; Ingrid H. Stairs; Daniel R. Stinebring; Kevin Stovall; Abhimanyu Susobhanan; Joseph K. Swiggum; Jacob Taylor; Stephen R. Taylor; Mercedes S. Thompson; Jacob E. Turner; Michele Vallisneri; Rutger van Haasteren; Sarah J. Vigeland; Haley M. Wahl; Kevin P. Wilson; Caitlin A. Witt; David Wright; Olivia Young
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The NANOGrav 15 yr Dataset: Search for Gravitational Scattering of Pulsars by Free-floating Objects in Interstellar Space
err2026-01-19
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errOAAI
errLankeswar Dey; Ross J. Jennings; Jackson D. Taylor; Joseph Glaser; Maura A. McLaughlin; Gabriella Agazie; Akash Anumarlapudi; Anne M. Archibald; Zaven Arzoumanian; Paul T. Baker; Paul R. Brook; H. Thankful Cromartie; Kathryn Crowter; Megan E. DeCesar; Paul B. Demorest; Timothy Dolch; Elizabeth C. Ferrara; William Fiore; Emmanuel Fonseca; Gabriel E. Freedman; Nate Garver-Daniels; Peter A. Gentile; Deborah C. Good; Jeffrey S. Hazboun; Megan L. Jones; David L. Kaplan; Matthew Kerr; Michael T. Lam; T. Joseph W. Lazio; Duncan R. Lorimer; Jing Luo; Ryan S. Lynch; Alexander McEwen; Natasha McMann; Bradley W. Meyers; Cherry Ng; David J. Nice; Timothy T. Pennucci; Benetge B. P. Perera; Nihan S. Pol; Henri A. Radovan; Scott M. Ransom; Paul S. Ray; Ann Schmiedekamp; Carl Schmiedekamp; Brent J. Shapiro-Albert; Ingrid H. Stairs; Kevin Stovall; Abhimanyu Susobhanan; Joseph K. Swiggum; Haley M. Wahl; (NANOGrav collaboration)
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New and updated timing models for seven young energetic X-ray pulsars, including the Big Glitcher PSR J0537−6910
err2025-12-23
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errWynn C G Ho; Lucien Kuiper; Cristóbal M Espinoza; Timothy Leon; Bennett Waybright; Sebastien Guillot; Zaven Arzoumanian; Slavko Bogdanov; Alice K Harding
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Eclipsing Stellar Flare on the Demon Star Algol Binary System Observed during the MAXI–NICER Follow-up Campaign in 2018
err2025-12-18
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errKazuya Nakayama; Wataru Buz Iwakiri; Teruaki Enoto; Shun Inoue; Yuta Notsu; Keith Gendreau; Zaven Arzoumanian; Kenji Hamaguchi; Tatehiro Mihara
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Quasiperiodic Variation during a Fast X-Ray Outburst of a High-mass X-Ray Binary MAXI J0709-159/LY CMa Observed by NICER
err2025-08-29
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errOAAI
errMutsumi Sugizaki; Tatehiro Mihara; Kohei Kobayashi; Megumi Shidatsu; Wataru Iwakiri; Keith Gendreau; Zaven Arzoumanian; Douglas J. K. Buisson; Sean N. Pike
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Timing and Spectral Evolution of the Magnetar 1E 1841-045 in Outburst
err2025-08-06
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PREAI
errGeorge Younes; Samuel K. Lander; Matthew G. Baring; Marlon L. Bause; Rachael Stewart; Zaven Arzoumanian; Hoa Dinh Thi; Teruaki Enoto; Keith C. Gendreau; Tolga Güver; Alice K. Harding; Wynn C. G. Ho; Chin-Ping Hu; Alex Van Kooten; Chryssa Kouveliotou; Niccolò Di Lalla; Alexander McEwen; Michela Negro; Mason Ng; David M. Palmer; Laura G. Spitler; Zorawar Wadiasingh
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SRG/eROSITA No. 5: Discovery of Quasiperiodic Eruptions Every ∼3.7 days from a Galaxy at z > 0.1
err2025-08-01
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PREAI
errR. Arcodia; P. Baldini; A. Merloni; A. Rau; K. Nandra; J. Chakraborty; A. J. Goodwin; M. J. Page; J. Buchner; M. Masterson; I. Monageng; Z. Arzoumanian; D. Buckley; E. Kara; G. Ponti; M. E. Ramos-Ceja; M. Salvato; K. Gendreau; I. Grotova; M. Krumpe
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Pulse Profile Variability of PSR J1022+1001 in NANOGrav Data
err2025-05-06
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errOAAI
errFiore, William; McLaughlin, Maura A.; Agazie, Gabriella; Anumarlapudi, Akash; Archibald, Anne M.; Arzoumanian, Zaven; Baker, Paul T.; Brook, Paul R.; Cromartie, H. Thankful; Crowter, Kathryn; DeCesar, Megan E.; Demorest, Paul B.; Dey, Lankeswar; Dolch, Timothy; Ferrara, Elizabeth C.; Fonseca, Emmanuel; Freedman, Gabriel E.; Garver-Daniels, Nate; Gentile, Peter A.; Glaser, Joseph; Good, Deborah C.; Hazboun, Jeffrey S.; Jennings, Ross J.; Jones, Megan L.; Kaplan, David L.; Kerr, Matthew; Lam, Michael T.; Lorimer, Duncan R.; Luo, Jing; Lynch, Ryan S.; McEwen, Alexander; McMann, Natasha; Meyers, Bradley W.; Ng, Cherry; Nice, David J.; Pennucci, Timothy T.; Perera, Benetge B. P.; Pol, Nihan S.; Radovan, Henri A.; Ransom, Scott M.; Ray, Paul S.; Schmiedekamp, Ann; Schmiedekamp, Carl; Shapiro-Albert, Brent J.; Stairs, Ingrid H.; Stovall, Kevin; Susobhanan, Abhimanyu; Swiggum, Joseph K.; Wahl, Haley M.
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Exploring Pulsar Timing Precision: A Comparative Study of Polarization Calibration Methods for NANOGrav Data from the Green Bank Telescope
err2024-12-06
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errDey, Lankeswar; Mclaughlin, Maura A.; Wahl, Haley M.; Demorest, Paul B.; Arzoumanian, Zaven; Blumer, Harsha; Brook, Paul R.; Burke-Spolaor, Sarah; Cromartie, H. Thankful; Decesar, Megan E.; Dolch, Timothy; Ellis, Justin A.; Ferdman, Robert D.; Ferrara, Elizabeth C.; Fiore, William; Fonseca, Emmanuel; Garver-Daniels, Nate; Gentile, Peter A.; Glaser, Joseph; Good, Deborah C.; Jennings, Ross J.; Jones, Megan L.; Lam, Michael T.; Lorimer, Duncan R.; Luo, Jing; Lynch, Ryan S.; Ng, Cherry; Nice, David J.; Pennucci, Timothy T.; Pol, Nihan S.; Ransom, Scott M.; Spiewak, Renee; Stairs, Ingrid H.; Stovall, Kevin; Swiggum, Joseph K.
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A NICER View of PSR J1231-1411: A Complex Case
err2024-11-13
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errOAAI
errSalmi, Tuomo; Deneva, Julia S.; Ray, Paul S.; Watts, Anna L.; Choudhury, Devarshi; Kini, Yves; Vinciguerra, Serena; Cromartie, H. Thankful; Wolff, Michael T.; Arzoumanian, Zaven; Bogdanov, Slavko; Gendreau, Keith; Guillot, Sebastien; Ho, Wynn C. G.; Morsink, Sharon M.; Cognard, Ismael; Guillemot, Lucas; Theureau, Gilles; Kerr, Matthew
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Exploring Waveform Variations among Neutron Star Ray-tracing Codes for Complex Emission Geometries
err2024-11-04
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errOAAI
errChoudhury, Devarshi; Watts, Anna L.; Dittmann, Alexander J.; Miller, M. Coleman; Morsink, Sharon M.; Salmi, Tuomo; Vinciguerra, Serena; Bogdanov, Slavko; Guillot, Sebastien; Wolff, Michael T.; Arzoumanian, Zaven
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A Comprehensive Study of Thermonuclear X-Ray Bursts from 4U 1820-30 with NICER: Accretion Disk Interactions and a Candidate Burst Oscillation
err2024-10-25
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errOAAI
errJaisawal, Gaurava K.; Bostanci, Z. Funda; Boztepe, Tugba; Guver, Tolga; Strohmayer, Tod E.; Ballantyne, David R.; Beck, Jens H.; Gogus, Ersin; Altamirano, Diego; Arzoumanian, Zaven; Chakrabarty, Deepto; Gendreau, Keith C.; Guillot, Sebastien; Ludlam, Renee M.; Ng, Mason; Sanna, Andrea; Chenevez, Jerome
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A More Precise Measurement of the Radius of PSR J0740+6620 Using Updated NICER Data
err2024-10-18
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errOAAI
errDittmann, Alexander J.; Miller, M. Coleman; Lamb, Frederick K.; Holt, Isiah M.; Chirenti, Cecilia; Wolff, Michael T.; Bogdanov, Slavko; Guillot, Sebastien; Ho, Wynn C. G.; Morsink, Sharon M.; Arzoumanian, Zaven; Gendreau, Keith C.
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The Radius of the High-mass Pulsar PSR J0740+6620 with 3.6 yr of NICER Data
err2024-10-18
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errOAAI
errSalmi, Tuomo; Choudhury, Devarshi; Kini, Yves; Riley, Thomas E.; Vinciguerra, Serena; Watts, Anna L.; Wolff, Michael T.; Arzoumanian, Zaven; Bogdanov, Slavko; Chakrabarty, Deepto; Gendreau, Keith; Guillot, Sebastien; Ho, Wynn C. G.; Huppenkothen, Daniela; Ludlam, Renee M.; Morsink, Sharon M.; Ray, Paul S.
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