Results 81 to 90 of about 13,694 (217)

The Third Fermi Large Area Telescope Catalog of Gamma-Ray Pulsars

open access: yesThe Astrophysical Journal, 2023
We present 294 pulsars found in GeV data from the Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope. Another 33 millisecond pulsars (MSPs) discovered in deep radio searches of LAT sources will likely reveal pulsations once phase-connected
D. A. Smith   +170 more
doaj   +1 more source

Rfi Mitigation Implementation For Pulsar Radioastronomy

open access: yes, 2010
International audienceThe observation of known pulsars (pulsar timing) or the search for new pulsars can be limited by radio frequency interference (RFI) generated by Telecommunications activity. In this paper we propose several RFI mitigation techniques
Ait-Allal, Dalal   +4 more
core   +2 more sources

Methods for calibrating a cesium atomic clock using a pulsar time-scale

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Some millisecond pulsars exhibit extremely high rotational stability, which can form a pulsar-based time-scale. We employed a post-correction method to evaluate the feasibility of the pulsar time-scale (PT) as a time reference to calibrate the frequency of cesium clocks getting more accurate time signals.
Linlin Wang, Zhehao Zhang, Minglei Tong
openaire   +1 more source

Environmental stress reveals new insights regarding proteome rebalancing in Arabidopsis thaliana seeds

open access: yesThe Plant Journal, Volume 126, Issue 2, April 2026.
SUMMARY Seeds are resilient to genetic and envirxonmental perturbation. For example, they can compensate for the loss of highly abundant seed storage proteins (SSPs) while maintaining amino acid levels and composition, a process known as proteome rebalancing.
Huda Ansaf   +4 more
wiley   +1 more source

Noisy Timing Behavior is a Feature of Central Compact Object Pulsars

open access: yesThe Astrophysical Journal
We present a timing study of the three known central compact object (CCO) pulsars, isolated cooling neutron stars in supernova remnants, using observations from Chandra, XMM-Newton, and NICER spanning two decades.
K. I. Perez   +2 more
doaj   +1 more source

Research on establishing a joint time-scale of pulsar time and atomic time based on a wavelet analysis method

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT Pulsar time has different physical mechanisms from atomic time, and these two time-scales are complementary in terms of stability performance. The joint timekeeping of pulsar and atomic time is currently an important application direction.
Xingzhi Zhu   +6 more
openaire   +1 more source

Finding Local Parallel Electric Fields in Magnetotail Reconnection Using a Two‐Spacecraft Method

open access: yesGeophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract We investigate the use of a novel two‐spacecraft Liouville‐mapping method using data from the Magnetospheric Multiscale mission to determine local magnetic‐field‐aligned (parallel) electric fields in the Earth's magnetotail. The method detects the presence of local acceleration potentials by mapping phase‐space density between electron ...
J. D. White   +4 more
wiley   +1 more source

Retracing the Cold Plasma Dispersion Law in Pulsar B0329+54: New Insights into Frequency-dependent Dispersion Measures

open access: yesThe Astrophysical Journal
Multiple studies have investigated potential frequency-dependent dispersion measures (DMs) in PSR B0329+54, with sensitivities at levels of 10 ^−3 pc cm ^−3 or higher, using frequencies below 1 GHz. Utilizing the extensive bandwidth of the upgraded Giant
Shyam S. Sharma   +4 more
doaj   +1 more source

The KaVA and KVN Pulsar Project

open access: yes, 2014
We present our work towards using the Korean VLBI (Very Long Baseline Interferometer) Network (KVN) and VLBI Exploration of Radio Astronomy (VERA) arrays combined into the KVN and VERA Array (KaVA) for observations of radio pulsars at high frequencies ($\
Dodson, Richard   +6 more
core   +1 more source

Disengaging the Engine: Histone Deacetylases 1 and 2‐Mediated Acetylation of Hexokinase‐2 Regulates Energy Metabolism in Microglia Following Intracerebral Hemorrhage

open access: yesAdvanced Science, Volume 13, Issue 14, 9 March 2026.
This study demonstrates that HDAC1/2 knockout in microglia alleviates neurological deficits, preserves white matter, and accelerates hematoma clearance after ICH. HDAC1/2 inhibition reduces HK2 acetylation, shifts metabolism from glycolysis to fatty acid oxidation, reduces inflammation, and enhances phagocytosis.
Zhiwen Jiang   +9 more
wiley   +1 more source

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