Results 41 to 50 of about 45,108 (242)

Possible Distance Indicators in Gamma-ray Pulsars [PDF]

open access: yes, 2011
Distance measurements of gamma-ray pulsars are challenging questions in present pulsar studies. The Large Area Telescope (LAT) aboard the Fermi gamma-ray observatory discovered more than 70 gamma-ray pulsars including 24 new gamma-selected pulsars which nearly have no distance information.
arxiv   +1 more source

Rotational evolution of the Crab pulsar in the wind braking model [PDF]

open access: yes, 2015
The pulsar wind model is updated by considering the effect of particle density and pulsar death. It can describe both the short term and long term rotational evolution of pulsars consistently. It is applied to model the rotational evolution of the Crab pulsar. The pulsar is spun down by a combination of magnetic dipole radiation and particle wind.
arxiv   +1 more source

Electrodynamics of Pulsar Magnetospheres [PDF]

open access: yesSpace Science Reviews, 2016
31 pages, 11 figures, Accepted for publication in Space Science Reviews. Chapter in ISSI book on "Jets and Winds in Pulsar Wind Nebulae and Gamma-ray Bursts"
Cerutti, Benoît, Beloborodov, Andrei
openaire   +6 more sources

Pulsar-candidate Selection Using a Generative Adversarial Network and ResNeXt

open access: yesThe Astrophysical Journal Supplement Series, 2022
Pulsar research has been a hot topic in the area of astronomy since they were first discovered. Pulsar discovery is fundamental for pulsar research. While pulsars are now visible across the electromagnetic spectrum, pulsar searches with modern radio ...
Qian Yin   +4 more
doaj   +1 more source

Spin Equilibrium of Rapidly Spinning Neutron Stars via Transient Accretion

open access: yesGalaxies, 2023
The concept of spin equilibrium due to an interaction between the stellar magnetosphere and a thin, Keplerian accretion disk, and a well-known formula of the corresponding equilibrium spin frequency, provide a key understanding of spin evolution and the ...
Sudip Bhattacharyya
doaj   +1 more source

Fluctuating neutron star magnetosphere: braking indices of eight pulsars, frequency second derivatives of 222 pulsars and 15 magnetars [PDF]

open access: yes, 2015
Eight pulsars have low braking indices, which challenge the magnetic dipole braking of pulsars. 222 pulsars and 15 magnetars have abnormal distribution of frequency second derivatives, which also make contradiction with classical understanding. How neutron star magnetospheric activities affect these two phenomena are investigated by using the wind ...
arxiv   +1 more source

The specifics of pulsar radio emission

open access: yesOpen Astronomy, 2022
A characteristic property of pulsars is pulsed periodic radio emission, which has a high stability of periods. Despite the high stability of the emission periods of pulsars, monitoring the time of arrival of pulses (timing) shows the presence of ...
Losovsky Boris Ya.
doaj   +1 more source

Identification of Tumor‐Specific Surface Proteins Enables Quantification of Extracellular Vesicle Subtypes for Early Detection of Pancreatic Ductal Adenocarcinoma

open access: yesAdvanced Science, EarlyView.
Pancreatic ductal adenocarcinoma (PDAC) extracellular vesicle (EV) surface protein assay operates via a two‐step workflow – Step 1: Click chemistry‐mediated enrichment of PDAC EVs by EV Click Beads, in the presence of one of the three trans‐cyclooctene‐grafted PDAC EV‐specific antibodies; Step 2: Quantification of the enriched PDAC EVs by reverse ...
Chen Zhao   +27 more
wiley   +1 more source

Radio counterparts of gamma-ray pulsars [PDF]

open access: yes, 2012
Observations of pulsars with the Large Area Telescope (LAT) on the Fermi satellite have revolutionized our view of the gamma-ray pulsar population. For the first time, a large number of young gamma-ray pulsars have been discovered in blind searches of the LAT data.
arxiv   +1 more source

Noninvasive Assessment of β‐Secretase Activity Through Click Chemistry‐Mediated Enrichment of Neuronal Extracellular Vesicles to Detect Alzheimer's Disease

open access: yesAdvanced Science, EarlyView.
This study presents the NEV β‐secretase activity assay, a groundbreaking method for noninvasive evaluation of β‐secretase activity in Alzheimer's disease (AD) patients, enabling the generation of individualized β‐secretase activity profiles.
Hyoyong Kim   +19 more
wiley   +1 more source

Home - About - Disclaimer - Privacy