Search Results - "Schleicher, D. R. G."
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Magnetic Fields in the Large-Scale Structure of the Universe
Published in Space science reviews (01-05-2012)“…Magnetic fields appear to be ubiquitous in astrophysical environments. Their existence in the intracluster medium is established through observations of…”
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Formation of massive seed black holes via collisions and accretion
Published in Monthly notices of the Royal Astronomical Society (01-05-2018)“…Abstract Models aiming to explain the formation of massive black hole seeds, and in particular the direct collapse scenario, face substantial difficulties…”
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Journal Article -
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How realistic UV spectra and X-rays suppress the abundance of direct collapse black holes
Published in Monthly notices of the Royal Astronomical Society (21-01-2015)“…Observations of high-redshift quasars at z > 6 indicate that they harbour supermassive black holes (SMBHs) of a billion solar masses. The direct collapse…”
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Journal Article -
4
A detailed framework to incorporate dust in hydrodynamical simulations
Published in Monthly notices of the Royal Astronomical Society (01-04-2017)“…Dust plays a key role in the evolution of the interstellar medium and its correct modelling in numerical simulations is therefore fundamental. We present a new…”
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Journal Article -
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The characteristic black hole mass resulting from direct collapse in the early Universe
Published in Monthly notices of the Royal Astronomical Society (21-12-2013)“…Black holes of a billion solar masses are observed in the infant Universe a few hundred million years after the big bang. The direct collapse of protogalactic…”
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Journal Article -
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Formation of SMBH seeds in Population III star clusters through collisions: the importance of mass loss
Published in Monthly notices of the Royal Astronomical Society (01-04-2020)“…ABSTRACT Runaway collisions in dense clusters may lead to the formation of supermassive black hole (SMBH) seeds, and this process can be further enhanced by…”
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Journal Article -
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The 3D Structure of CO Depletion in High-mass Prestellar Regions
Published in The Astrophysical journal (20-12-2019)“…Disentangling the different stages of the star formation process, in particular in the high-mass regime, is a challenge in astrophysics. Chemical clocks could…”
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Journal Article -
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Large-Scale Structure Formation: From the First Non-linear Objects to Massive Galaxy Clusters
Published in Space science reviews (01-05-2015)“…The large-scale structure of the Universe formed from initially small perturbations in the cosmic density field, leading to galaxy clusters with up to 10 15 M…”
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Journal Article -
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Turbulence and its connection to episodic accretion in binary YSOs
Published in Monthly notices of the Royal Astronomical Society (01-11-2021)“…ABSTRACT We report signatures of episodic accretion in young stellar objects (YSOs) that emerge in protobinary configurations in a gravoturbulent gas collapse…”
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Journal Article -
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The small-scale dynamo and the amplification of magnetic fields in massive primordial haloes
Published in Monthly notices of the Royal Astronomical Society (11-06-2013)“…While the present standard model of cosmology yields no clear prediction for the initial magnetic field strength, efficient dynamo action may compensate for…”
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Journal Article -
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IMPACT OF DUST COOLING ON DIRECT-COLLAPSE BLACK HOLE FORMATION
Published in The Astrophysical journal (20-05-2016)“…ABSTRACT Observations of quasars at suggest the presence of black holes with a few times . Numerous models have been proposed to explain their existence,…”
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Journal Article -
12
Magnetic fields during the formation of supermassive black holes
Published in Monthly notices of the Royal Astronomical Society (11-05-2014)“…Observations of quasars at z > 6 report the existence of a billion solar mass black holes. Comprehending their formation in such a short time-scale is a matter…”
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Journal Article -
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Intermittent fragmentation and statistical variations during gas collapse in magnetized atomic cooling haloes
Published in Monthly notices of the Royal Astronomical Society (21-08-2019)Get full text
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Origin of supermassive black holes in massive metal-poor protoclusters
Published in Monthly notices of the Royal Astronomical Society (19-04-2022)“…ABSTRACT While large numbers of supermassive black holes have been detected at z > 6, their origin is still essentially unclear. Numerical simulations have…”
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Journal Article -
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Witnessing the birth of a supermassive protostar
Published in Monthly notices of the Royal Astronomical Society (01-05-2016)“…The detection of z > 6 quasars reveals the existence of supermassive black holes of a few 109 M⊙. One of the potential pathways to explain their formation in…”
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Journal Article -
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Do fragmentation and accretion affect the stellar initial mass function?
Published in Monthly notices of the Royal Astronomical Society (11-05-2020)“…ABSTRACT While the stellar initial mass function (IMF) appears to be close to universal within the Milky Way galaxy, it is strongly suspected to be different…”
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Journal Article -
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THE FORMATION OF THE PRIMITIVE STAR SDSS J102915+172927: EFFECT OF THE DUST MASS AND THE GRAIN-SIZE DISTRIBUTION
Published in The Astrophysical journal (01-12-2016)“…ABSTRACT Understanding the formation of the extremely metal-poor star SDSS J102915+172927 is of fundamental importance to improve our knowledge on the…”
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Journal Article -
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Black hole formation in the context of dissipative dark matter
Published in Monthly notices of the Royal Astronomical Society (21-05-2019)“…Abstract Black holes with masses of $\rm 10^6\text{-}10^9\,M_{\odot }$ dwell in the centres of most galaxies, but their formation mechanisms are not well…”
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Journal Article -
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Impact of baryonic streaming velocities on the formation of supermassive black holes via direct collapse
Published in Monthly notices of the Royal Astronomical Society (01-06-2014)“…Baryonic streaming motions produced prior to the epoch of recombination became supersonic during the cosmic dark ages. Various studies suggest that such…”
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Journal Article -
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Turbulent magnetic field amplification from the smallest to the largest magnetic Prandtl numbers
Published in New journal of physics (25-01-2013)“…The small-scale dynamo provides a highly efficient mechanism for the conversion of turbulent into magnetic energy. In astrophysical environments, such…”
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