Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Steigerwald, Heinrich"'
Publikováno v:
Phys. Rev. D 105, 083507 (2022)
The runaway collapse phase of a small dark matter cluster inside a white dwarf star encompasses a reversible stage, where heat can be transferred back and forth between nuclear and dark matter. Induced nuclear burning phases are stable and early carb
Externí odkaz:
http://arxiv.org/abs/2203.09054
Publikováno v:
MNRAS 510 (4), 4779-4795 (2022)
Residuals in the Hubble diagram at optical wavelengths and host galaxy stellar mass are observed to correlate in Type Ia supernovae (SNe Ia) (`magnitude step'). Among possible progenitor channels for the associated explosions, those based on dark mat
Externí odkaz:
http://arxiv.org/abs/2112.09739
Autor:
Steigerwald, Heinrich, Tejeda, Emilio
Publikováno v:
Phys.Rev.Lett. 127 (2021) 011101
Detonation initiation in a reactive medium can be achieved by an externally created shock wave. Supersonic flow onto a gravitating center, known as Bondi-Hoyle-Lyttleton (BHL) accretion, is a natural shock wave creating process, but, to our knowledge
Externí odkaz:
http://arxiv.org/abs/2104.07066
We investigate local environmental effects from dark matter (DM) on thermonuclear supernovae (SNe Ia) using publicly available archival data of 224 low-redshift events, in an attempt to shed light on the SN Ia progenitor systems. SNe Ia are explosion
Externí odkaz:
http://arxiv.org/abs/1912.12417
Autor:
Steigerwald, Heinrich Maria
L'expansion accélérée de l'univers est devenu un fait établi que personne ne pouvait prévoir il y a encore une vingtaine d'années. Pour expliquer l'accélération cosmique, l'univers doit être composé de $75%$ d'énergie noire, une matière h
Externí odkaz:
http://www.theses.fr/2015AIXM4708/document
We present and discuss an asynchronous coordinate system covering de Sitter spacetime, notably in a complete way in 1+1 dimensions. The new coordinates have several interesting cosmological properties: the worldlines of comoving ($x^i=const$) observe
Externí odkaz:
http://arxiv.org/abs/1409.3395
Measurements of the growth index $\gamma(z)$ provide a clue as to whether Einstein's field equations encompass gravity also on large cosmic scales, those where the expansion of the universe accelerates. We show that the information encoded in this fu
Externí odkaz:
http://arxiv.org/abs/1403.0898
We use the effective field theory of dark energy to explore the space of modified gravity models which are capable of driving the present cosmic acceleration. We identify five universal functions of cosmic time that are enough to describe a wide rang
Externí odkaz:
http://arxiv.org/abs/1312.6111
Akademický článek
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We present and discuss an asynchronous coordinate system covering de Sitter spacetime, notably in a complete way in 1+1 dimensions. The new coordinates have several interesting cosmological properties: the worldlines of comoving ($x^i=const$) observe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37aa291c41decc67a280652da22f48f4
https://hal.science/hal-01260956
https://hal.science/hal-01260956