Results 71 to 80 of about 29,281 (217)
Kaniadakis Holographic Dark Energy Behavior in f(Q) Theory
Fortschritte der Physik, Volume 74, Issue 4, April 2026.ABSTRACT In this study, the cosmological behavior of the Kaniadakis holographic dark energy model is investigated under the f(Q)$f(Q)$ theory within the framework of a flat Friedmann–Robertson–Walker (FRW) universe. The generalized holographic energy density based on Kaniadakis entropy is modeled using the Hubble horizon infrared cutoff scale, and the ...
Sinem Kalkan, Can Aktaş
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Exploring the Diffuse X-ray Emission of Supernova Remnant Kesteven 69 with XMM-Newton [PDF]
Journal of Astronomy and Space Sciences, 2013 We have investigated the X-ray emission from the shock-heated plasma of the Galactic supernova remnant Kesteven 69 with XMM-Newton. Assuming the plasma is at collisional ionization equilibrium, a plasma temperature and a column absorption are found to ...
Kyoung-Ae Seo, Chung Yue Hui
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Far-Ultraviolet Cooling Features of the Antlia Supernova Remnant
, 2007 We present far-ultraviolet observations of the Antlia supernova remnant obtained with Far-ultraviolet IMaging Spectrograph (FIMS, also called SPEAR). The strongest lines observed are C IV 1548,1551 and C III 977.
Edelstein, Jerry +9 more
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Acta Crystallographica Section B, Volume 82, Issue 2, Page 175-185, April 2026.A structural solution is presented of a primitive icosahedral ZnMgEr quasicrystal representing the Bergman‐type family. The structure model is based on atomic decoration of the Ammann–Kramer–Neri tiling.This study presents the atomic structure solution of a primitive icosahedral Zn70.83Mg20.31Er8.86 quasicrystal using in‐house X‐ray diffraction and the
Ireneusz Buganski +7 more
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An X-Ray Shell Reveals the Supernova Explosion for Galactic Microquasar SS 433
The Astrophysical Journal LettersHow black holes are formed remains an open and fundamental question in astrophysics. Despite theoretical predictions, it lacks observations to understand whether the black hole formation experiences a supernova explosion.
Yi-Heng Chi +7 more
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On the Mass Distribution of Stellar-Mass Black Holes
Open Astronomy, 2014 The observational stellar-mass black hole mass distribution exhibits a maximum at about 8 M⊙. It can be explained via the details of the massive star evolution, supernova explosions, or consequent black hole evolution.
Malkov O. Yu.
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Radio Spectral Index and Expansion of 3C58
, 2001 We present new observations of the plerionic supernova remnant 3C58 with the VLA at 74 and 327 MHz. In addition, we re-reduced earlier observations at 1.4 and 4.9 GHz taken in 1973 and 1984. Comparing these various images, we find that: 1.
Aller H. D. +14 more
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Cassiopeia A: dust factory revealed via submillimetre polarimetry [PDF]
, 2009 If Type-II supernovae - the evolutionary end points of short-lived, massive stars - produce a significant quantity of dust (>0.1 M_sun) then they can explain the rest-frame far-infrared emission seen in galaxies and quasars in the first Gyr of the ...
Crowe, C. M. +9 more
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Meteoritics &Planetary Science, Volume 61, Issue 4, Page 600-620, April 2026.Abstract Production rates for the cosmogenic radionuclides 10Be, 14C, 26Al, 36Cl, 41Ca, 53Mn, and 60Fe in a large variety of meteorites, that is, ordinary chondrites (H, L, LL), carbonaceous chondrites, HED meteorites, ureilites, Martian meteorites, and iron meteorites and in the uppermost ~2 m of the lunar surface are modeled.
Ingo Leya
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