Results 111 to 120 of about 98,496 (277)

Search for an Isotropic Gravitational-wave Background with the Parkes Pulsar Timing Array

The Astrophysical Journal Letters, 2023
Pulsar timing arrays aim to detect nanohertz-frequency gravitational waves (GWs). A background of GWs modulates pulsar arrival times and manifests as a stochastic process, common to all pulsars, with a signature spatial correlation.
Daniel J. Reardon, Andrew Zic, Ryan M. Shannon, George B. Hobbs, Matthew Bailes, Valentina Di Marco, Agastya Kapur, Axl F. Rogers, Eric Thrane, Jacob Askew, N. D. Ramesh Bhat, Andrew Cameron, Małgorzata Curyło, William A. Coles, Shi Dai, Boris Goncharov, Matthew Kerr, Atharva Kulkarni, Yuri Levin, Marcus E. Lower, Richard N. Manchester, Rami Mandow, Matthew T. Miles, Rowina S. Nathan, Stefan Osłowski, Christopher J. Russell, Renée Spiewak, Songbo Zhang, Xing-Jiang Zhu   +28 more
doaj   +1 more source

Formation of Millisecond Pulsars from Accretion Induced Collapse and Constraints on Pulsar Gamma Ray Burst Models [PDF]

, 1997
We study accretion induced collapse of magnetized white dwarfs as an origin of millisecond pulsars. We apply magnetized accretion disk models to the pre-collapse accreting magnetic white dwarfs and calculate the white dwarf spin evolution.
Aly J. J., Asseo E., Backer D. C., Cameron A. C., Canal R., Chanmugam G., de Cool M., Eric G. Blackman, Finn L. S., Insu Yi, Lamb F. K., Livio M., Lovelace R. V. E., Low B. C., Martin P. G., Morris S. L., Tsvetkov V. P., van den Heuvel E. P. H., Verbund F., Wang Y., Wang Y., Warner B., Warner B., Wu K.   +23 more
core   +3 more sources

DISCOVERY OF A REDBACK MILLISECOND PULSAR CANDIDATE: 3FGL J0212.1+5320 [PDF]

, 2016
We present a multiwavelength study of the unidentified Fermi object, 3FGL J0212.1+5320. Within the 95% error ellipse, Chandra detects a bright X-ray source (i.e., erg cm−2 s−1) that has a low-mass optical counterpart ( and K).
Kwan-Lok Li, A. Kong, X. Hou, J. Mao, J. Strader, L. Chomiuk, E. Tremou   +6 more
semanticscholar   +1 more source

Heavy Elements and Electromagnetic Transients from Neutron Star Mergers

Annalen der Physik, Volume 536, Issue 2, February 2024.
Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley   +1 more source

AN ACTIVE, ASYNCHRONOUS COMPANION TO A REDBACK MILLISECOND PULSAR [PDF]

, 2016
PSR J1723−2837 is a “redback” millisecond pulsar (MSP) with a low-mass companion in a 14.8 hr orbit. The system’s properties closely resemble those of “transitional” MSPs that alternate between spin-down and accretion-powered states.
A. V. Staden, J. Antoniadis
semanticscholar   +1 more source

A VLITE Search for Millisecond Pulsars in Globular Clusters: Discovery of a Pulsar in GLIMPSE-C01

The Astrophysical Journal
We present results from a search for pulsars in globular clusters, including the discovery of a new millisecond pulsar in the stellar cluster GLIMPSE-C01.
Amaris V. McCarver, Thomas J. Maccarone, Scott M. Ransom, Tracy E. Clarke, Simona Giacintucci, Wendy M. Peters, Emil Polisensky, Kristina Nyland, Tasha Gautam, Paulo C. C. Freire, Blagoy Rangelov   +10 more
doaj   +1 more source

PSR J1024–0719: A MILLISECOND PULSAR IN AN UNUSUAL LONG-PERIOD ORBIT [PDF]

, 2016
PSR J1024–0719 is a millisecond pulsar that was long thought to be isolated. However, puzzling results concerning its velocity, distance, and low rotational period derivative have led to a reexamination of its properties.
D. Kaplan, T. Kupfer, D. Nice, A. Irrgang, U. Heber, Z. Arzoumanian, E. Beklen, K. Crowter, M. DeCesar, P. Demorest, T. Dolch, J. Ellis, R. Ferdman, E. Ferrara, E. Fonseca, P. Gentile, G. Jones, Megan L. Jones, S. Kreuzer, M. Lam, L. Levin, D. Lorimer, R. Lynch, M. Mclaughlin, A. Miller, C. Ng, T. Pennucci, T. Prince, S. Ransom, P. Ray, R. Spiewak, I. Stairs, K. Stovall, J. Swiggum, Weiwei Zhu   +34 more
semanticscholar   +1 more source

The NANOGrav 15 yr Data Set: Detector Characterization and Noise Budget

The Astrophysical Journal Letters, 2023
Pulsar timing arrays (PTAs) are galactic-scale gravitational wave (GW) detectors. Each individual arm, composed of a millisecond pulsar, a radio telescope, and a kiloparsecs-long path, differs in its properties but, in aggregate, can be used to extract ...
Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Bence Bécsy, Laura Blecha, Adam Brazier, Paul R. Brook, Sarah Burke-Spolaor, 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, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Lydia Guertin, 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, 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, The NANOGrav Collaboration   +91 more
doaj   +1 more source

A Millisecond Pulsar Discovery in a Survey of Unidentified Fermi γ-Ray Sources with LOFAR [PDF]

, 2017
Using LOFAR, we have performed a very-low-frequency (115−155 MHz) radio survey for millisecond pulsars (MSPs). The survey targeted 52 unidentified Fermi γ-ray sources. Employing a combination of coherent and incoherent dedispersion, we have mitigated the
Z. Pleunis, Z. Pleunis, C. Bassa, J. Hessels, J. Hessels, V. Kondratiev, V. Kondratiev, F. Camilo, I. Cognard, I. Cognard, J. Grießmeier, J. Grießmeier, B. Stappers, A. V. Amesfoort, S. Sanidas   +14 more
semanticscholar   +1 more source

A NICER Thermonuclear Burst from the Millisecond X-Ray Pulsar SAX J1808.4–3658 [PDF]

Astrophysical Journal, 2019
The Neutron Star Interior Composition Explorer (NICER) has extensively monitored the 2019 August outburst of the 401 Hz millisecond X-ray pulsar SAX J1808.4–3658.
P. Bult, G. K. Jaisawal, T. Güver, T. Strohmayer, D. Altamirano, Z. Arzoumanian, D. Ballantyne, D. Chakrabarty, J. Chenevez, K. Gendreau, S. Guillot, R. Ludlam   +11 more
semanticscholar   +1 more source