Results 41 to 50 of about 22,313 (204)

Discovery of three binary millisecond pulsars

open access: yesThe Astrophysical Journal, 1994
We report the discovery of three binary millisecond pulsars in circular orbits with low-mass companions from a continuing survey of the southern sky with the Parkes radio telescope. The three pulsars, PSR J0034-0534, PSR J1045-4509, and PSR J2145-0750 have pulse periods of 1.87, 7.47, and 16.05 ms and orbital periods of 1.6, 4.1, and 6.8 days ...
Bailes, M.   +9 more
openaire   +3 more sources

Eight new MSPs in NGC 6440 and NGC 6441

open access: yes, 2007
We report the discovery of five new millisecond pulsars in the globular cluster NGC 6440 and three new ones in NGC 6441; each cluster has one previously known pulsar. Four of the new pulsars are found in binary systems.
A. Cumming   +10 more
core   +1 more source

Searching for gravitational waves from known pulsars [PDF]

open access: yes, 2005
We present upper limits on the amplitude of gravitational waves from 28 isolated pulsars using data from the second science run of LIGO. The results are also expressed as a constraint on the pulsars' equatorial ellipticities.
Abbott, R   +401 more
core   +2 more sources

A Hydrodynamic Bioreactor for High‐Yield Production of Extracellular Vesicles from Stem Cell Spheroids with Defined Cargo Profiling

open access: yesAdvanced Science, Volume 13, Issue 10, 18 February 2026.
This study harnesses hydrodynamic flows to generate, confine and stimulate stem cell spheroids, enabling the large‐scale production of extracellular vesicles (EVs). This innovative method not only streamlines spheroid formation and subsequent EV release in a single, integrated process, but also ensures the generation of EVs with enhanced biological ...
Solène Lenoir   +7 more
wiley   +1 more source

The Timing of Nine Globular Cluster Pulsars

open access: yes, 2012
We have used the Robert C. Byrd Green Bank Telescope to time nine previously known pulsars without published timing solutions in the globular clusters M62, NGC 6544, and NGC 6624.
Biggs   +32 more
core   +1 more source

Overcoming the Challenges of Transmural Durable Lesions With PFA—Impact of Electrode Design and Contact Assessment

open access: yesPacing and Clinical Electrophysiology, Volume 49, Issue 1, Page 25-31, January 2026.
Abstract Electrode design and reliable contact assessment are critical for creating durable pulsed field ablation (PFA) lesions to treat atrial fibrillation while minimizing collateral damage. This review introduces a novel “map‐and‐ablate” PFA catheter featuring flat electrodes, thermal contact assessment, and fully customizable electrode selection ...
Lea Melki   +3 more
wiley   +1 more source

Gamma-ray binaries: pulsars in disguise? [PDF]

open access: yesAstronomy & Astrophysics, 2006
20 pages, 20 figures, accepted for publication in A& ...
openaire   +4 more sources

The Intrabinary Shock and Companion Star of Redback Pulsar J2215+5135

open access: yesThe Astrophysical Journal
PSR J2215+5135 (J2215) is a “redback” spider pulsar, where the intrabinary shock (IBS) wraps around the pulsar rather than the stellar-mass companion. Spider orbital light curves are modulated, dominated by their binary companion thermal emission in the ...
Andrew G. Sullivan, Roger W. Romani
doaj   +1 more source

Leveraging Compressed Sensing and Radiomics for Robust Feature Selection for Outcome Prediction in Personalized Ultra‐Fractionated Stereotactic Adaptive Radiotherapy

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 12, December 2025.
A compressed sensing (CS)‐based feature selection method is proposed to select the most informative elements in the radiomic features extracted from medical images of personalized ultra‐fractionated stereotactic adaptive treatment. The CS‐based approach is able to simplify the feature selection process and enhance the accuracy and robustness of a ...
Yajun Yu   +3 more
wiley   +1 more source

RELATIVISTIC SPIN-PRECESSION IN BINARY PULSARS [PDF]

open access: yesThe Twelfth Marcel Grossmann Meeting, 2012
After the first prediction to expect geodetic precession in binary pulsars in 1974, made immediately after the discovery of a pulsar with a companion, the effects of relativistic spin precession have now been detected in all binary systems where the magnitude of the precession rate is expected to be sufficiently high.
openaire   +2 more sources

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