Results 51 to 60 of about 1,603 (188)

Discovery of Four Pulsars in a Pilot Survey at Intermediate Galactic Latitudes with FAST

open access: yesThe Astrophysical Journal, 2023
We present the discovery and timing results of four pulsars discovered in a pilot survey at intermediate Galactic latitudes with the Five-hundred Aperture Spherical Telescope (FAST). Among these pulsars, two belong to the category of millisecond pulsars (
Q. J. Zhi   +23 more
doaj   +1 more source

Nesting ecology of an ice‐associated seabird, Kittlitz's murrelet, at the northern edge of its range

open access: yesWildlife Society Bulletin, EarlyView.
We studied the Kittlitz's murrelet, an ice‐associated seabird of conservation concern, at the northern edge of its range. Over a 2‐year period, we estimated nest density and success at 2 sites, captured and telemetered nesting murrelets, and tested the use of a thermal camera to improve nest detection.
Michelle L. Kissling   +9 more
wiley   +1 more source

A Census of Pulsars in Possible Association with Galactic Open Clusters

open access: yesThe Astrophysical Journal Letters
Among the ∼4000 known pulsars in our Galaxy, ≲10% are found in globular clusters, but none has been confirmed in any open clusters yet, although they outnumber globular clusters by about 20 times.
Lu Zhou   +5 more
doaj   +1 more source

Real‐world insights on switching aflibercept dosage for enhanced outcomes in age‐related macular degeneration (RISE‐AMD): Safety data

open access: yesActa Ophthalmologica, EarlyView.
Abstract Purpose To evaluate real‐world safety experience with aflibercept 8 mg in a large case series of patients with neovascular age‐related macular degeneration (nAMD). Methods Due to a high proportion of patients on short treatment intervals, patients with nAMD at a Danish tertiary retina clinic were systematically switched to aflibercept 8 mg ...
Mary Graciya Karunainathan   +12 more
wiley   +1 more source

Pulsar Electrodynamics

open access: yesSymposium - International Astronomical Union, 1981
This paper briefly discusses the salient features of quasi-steady electrodynamics; that is to say it considers certain general properties of Maxwell's equations and their solutions when these equations are subjected to the constraint where ω is a constant angular frequency, ⊘ and t are the azimuthal angle and time, and the operators are applied only ...
openaire   +1 more source

Modeling the Radial Distribution of Pulsars in the Galaxy

open access: yesThe Astrophysical Journal Letters
The Parkes 20 cm multibeam pulsar surveys have discovered nearly half of the known pulsars and revealed many distant pulsars with high dispersion measures.
J. T. Xie   +4 more
doaj   +1 more source

A Study on the Evolution of Emission Altitude with Frequency Among 104 Normal Pulsars

open access: yesUniverse
Utilizing the databases from the European Pulsar Network (EPN), the Australia Telescope National Facility (ATNF), and published literature data, a geometric method was used to investigate the multifrequency emission altitude of 104 pulsars. We found that
Chaoxin Luo   +3 more
doaj   +1 more source

The strongest magnetic fields in the universe: How strong can they become?

open access: yesFrontiers in Physics, 2014
Magnetic fields in the universe are in general weak, of the order of µGauss only. However, in compact objects they assume extraordinarily large values. These are produced by gravitational collapse of massive magnetised objects.
Rudolf A. Treumann   +2 more
doaj   +1 more source

A Search for Pulsars around Sgr A* in the First Event Horizon Telescope Data Set

open access: yesThe Astrophysical Journal, 2023
In 2017 the Event Horizon Telescope (EHT) observed the supermassive black hole at the center of the Milky Way, Sagittarius A* (Sgr A*), at a frequency of 228.1 GHz ( λ = 1.3 mm).
Pablo Torne   +284 more
doaj   +1 more source

TMEM16A channel signalling microdomains in the regulation of vascular function

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of TMEM16A channel signalling microdomains. Calcium influx or calcium release from the endoplasmic/sarcoplasmic reticulum (ER/SR) activates TMEM16A channels through interactions with regulatory proteins in vascular smooth muscle cells or endothelial cells. TMEM16A channel activation drives chloride efflux,
Fênix Araujo, Swapnil K. Sonkusare
wiley   +1 more source

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