Results 151 to 160 of about 6,211,798 (244)
Determination of the length of coronal loops from the decay of X-ray flares
, 2007 . We illustrate a procedure to estimate the length of stellar coronal loops from the decay of X-ray flares observed with ROSAT/PSPC. As we did in the first paper of this series for solar flares, we use extensive hydrodynamic modeling, and the synthesis ...
F. Reale, Ii Stellar, G. Micela
core
Gamma ray Cerenkov telescope image analysis [PDF]
, 1997 The subject of this thesis is ground based gamma ray astronomy using the imaging atmospheric Cerenkov technique. The first two chapters are introductory, and describe the field of gamma ray astronomy, the generation of extensive air showers in the ...
Holder, J., Holder, Jamie
core
, 2004 Observations of magnetically active stars with Chandra and XMM-Newton have deepened our knowledge of the physics of the atmospheres in late-type stars. In this review paper, I discuss two topics that have profited significantly from Chandra and XMM-Newton.
openaire +2 more sources
The Astrophysical JournalThe Galactic center exhibits a persistent 0.511 MeV emission characteristic of electron–positron annihilation. Various astrophysical sources may be responsible for supplying the positrons, yet their contributions with respect to the total annihilation ...
Argen Gian Detoito, Henric Krawczynski
doaj +1 more source
Journal of Animal Physiology and Animal Nutrition, Volume 110, Issue 5, Page 792-805, September 2026.ABSTRACT Former food products (FFP) are food industry leftovers that can be used as feed ingredients. We investigated the effects of sugary FFP on growth, feeding behaviour, carcass and meat quality of pigs fattened to a heavy weight. Three inclusion levels were tested: 0% (FFP‐0 = control), 20% (FFP‐20) and 40% (FFP‐40) FFP in grower (20–60 kg BW ...
Marjeta Čandek‐Potokar +4 more
wiley +1 more source
Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight
Experimental Physiology, Volume 111, Issue 9, Page 4015-4040, 1 September 2026.Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley +1 more source
The Astrophysical JournalThe X-ray and extreme ultraviolet (XUV) emission from M stars can drive the atmospheric escape on planets orbiting them. M stars are also known for their frequent emission of stellar flares, which will increase the high-energy flux received by their ...
Laura N. R. do Amaral +3 more
doaj +1 more source
The Astrophysical JournalAlgol is a well-known eclipsing binary hosting an active and variable star that exhibits frequent stellar flares. Here, we report our preplanned and coordinated rapid X-ray follow-up observations of an eclipsing flare on Algol.
Kazuya Nakayama +8 more
doaj +1 more source
Starspots: A Key to the Stellar Dynamo
Living Reviews in Solar Physics, 2005 Magnetic activity similar to that of the Sun is observed on a variety of cool stars with external convection envelopes. Stellar rotation coupled with convective motions generate strong magnetic fields in the stellar interior and produce a multitude of ...
Berdyugina Svetlana V.
doaj