Results 1 to 10 of about 3,259 (256)

A HYDROGENIC MOLECULAR ATMOSPHERE OF A NEUTRON STAR

open access: yesModern Physics Letters A, 2004
A model of a hydrogenic content of atmosphere of the isolated neutron star 1E1207.4-5209 is proposed. It is based on the assumption that the main component in the atmosphere is the exotic molecular ion [Formula: see text] and that there exists a magnetic field in the range of (4±2)×1014 G .
Turbiner, A. V., Vieyra, J. C. Lopez
openaire   +2 more sources

Photoionization of Hydrogen in Atmospheres of Magnetic Neutron Stars [PDF]

open access: yesThe Astrophysical Journal, 1997
19 pages including 8 figures, LaTeX (using aas2pp4.sty and epsf.sty). Accepted for publication in ApJ.
Potekhin, A. Y., Pavlov, G. G.
openaire   +2 more sources

Unfolding the Neutron Flux Spectrum on the Surface of Mars Using the MSL‐RAD and Odyssey‐HEND Data

open access: yesSpace Weather, 2023
Understanding the long‐term radiation environment at the surface of Mars allows us to estimate the exposure for future robotic and crewed missions. Typically, the radiation environment includes charged particles (i.e., protons and heavier ions) and ...
L. M. Martinez Sierra   +10 more
doaj   +1 more source

Model Atmospheres for Low-Field Neutron Stars [PDF]

open access: yesThe Astrophysical Journal, 1996
We compute model atmospheres and emergent spectra for low field (B<10^10 G) neutron stars, using new opacity and equation of state data from the OPAL project. These computations, incorporating improved treatments of flux transport and convective stability, provide spectra for hydrogen, solar abundance and iron atmospheres.
Rajagopal, Mohan, Romani, Roger
openaire   +2 more sources

A neutron star with a carbon atmosphere in the Cassiopeia A supernova remnant [PDF]

open access: yesNature, 2009
The surface of hot neutron stars is covered by a thin atmosphere. If there is accretion after neutron star formation, the atmosphere could be composed of light elements (H or He); if no accretion takes place or if thermonuclear reactions occur after accretion, heavy elements (for example, Fe) are expected.
Ho, Wynn C. G., Heinke, Craig O.
openaire   +4 more sources

Evaluation of Single Event Effect on RK3588 Neural Processing Unit Using Spallation Neutron Irradiation and Software Fault Injection

open access: yesApplied System Innovation
This research investigates atmospheric neutron-induced single event effects (SEEs) on advanced artificial intelligence (AI) chips during natural environment operation.
Weitao Yang   +4 more
doaj   +1 more source

Model Atmospheres for X-ray Bursting Neutron Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1986
Self consistent neutron star atmospheric models have been constructed which include the effects of Comptonization, free-free and bound-free absorption. It has been demonstrated that for parameters relevant to x-ray bursting neutron stars the atmosphere does not radiate like a blackbody during any phase of an x-ray burst.
R. A. London, W. M. Howard, R. E. Taam
openaire   +1 more source

Evaluation of Atmospheric Neutron Failure Rates and Damage Mechanisms of Ultra-high Voltage Thyristor for DC Transmission

open access: yesYuanzineng kexue jishu
As the core of high-voltage direct-current transmission technology, the DC converter valve and its key power device thyristor face a high risk of failure caused by atmospheric neutron when operating in high-altitude areas. The atmospheric neutron failure
PENG Chao1, ZHOU Yang2, CHEN Zhongyuan2, LEI Zhifeng1, MA Teng1, ZHANG Zhangang1, ZHANG Hong1, HE Yujuan1
doaj   +1 more source

Atmospheric Effects on Neutron Star Parameter Constraints with NICER

open access: yesThe Astrophysical Journal, 2023
We present an analysis of the effects of uncertainties in the atmosphere models on the radius, mass, and other neutron star parameter constraints for the NICER observations of rotation-powered millisecond pulsars.
Tuomo Salmi   +9 more
doaj   +1 more source

Influence of Solar Wind on Secondary Cosmic Rays and Atmospheric Electricity

open access: yesFrontiers in Earth Science, 2021
A relationship between the heliospheric magnetic field, atmospheric electric field, lightning activity, and secondary cosmic rays measured on the high mount of Lomnický Štít (2,634 m a.s.l.), Slovakia, during the declining phase of the solar cycle 24 is ...
Jaroslav Chum   +7 more
doaj   +1 more source

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