Results 111 to 120 of about 355,593 (244)

A primordial feature at the scale of superclusters of galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2001
We investigate a spatially-flat cold dark matter model (with the matter density parameter $ _m=0.3$) with a primordial feature in the initial power spectrum. We assume that there is a bump in the power spectrum of density fluctuations at wavelengths $ \sim 30-60h^{-1}$Mpc, which correspond to the scale of superclusters of galaxies.
Gramann, Mirt, H\\"utsi, Gert
openaire   +2 more sources

Second order Langevin equation and definition of quantum gravity by stochastic quantisation

Nuclear Physics B, 2020
Euclidean quantum gravity might be defined by stochastic quantisation that is governed by a higher order Langevin equation rather than a first order stochastic equation.
Laurent Baulieu, Siye Wu
doaj   +1 more source

Primordial seeds of supermassive black holes

, 2012
Supermassive black holes exist in the centers of galaxies, including Milky Way, but there is no compelling theory of their formation. Furthermore, observations of quasars imply that supermassive black holes have already existed at some very high ...
Kawasaki, Masahiro, Kusenko, Alexander, Yanagida, Tsutomu T.   +2 more
core   +1 more source

BAF60/SWP73 subunits define subclasses of SWI/SNF chromatin remodelling complexes in Arabidopsis

New Phytologist, Volume 247, Issue 2, Page 791-812, July 2025.
Summary Evolutionarily conserved switch‐defective/sucrose nonfermentable (SWI/SNF) ATP‐dependent chromatin remodelling complexes (CRCs) alter nucleosome positioning and chromatin states, affecting gene expression to regulate important processes such as proper development and hormonal signalling pathways.
Sebastian P. Sacharowski, Szymon Kubala, Pawel Cwiek, Jaroslaw Steciuk, Dominika Gratkowska‐Zmuda, Paulina Oksinska, Ernest Bucior, Anna T. Rolicka, Monika Ciesla, Klaudia Nowicka, Saleh Alseekh, Takayuki Tohge, Patrick Giavalisco, Dorota L. Zugaj, Sara C. Stolze, Anne Harzen, Rainer Franzen, Bruno Huettel, Elzbieta Grzesiuk, Mohammad‐Reza Hajirezaei, Hirofumi Nakagami, Csaba Koncz, Alisdair R. Fernie, Tomasz J. Sarnowski   +23 more
wiley   +1 more source

Hindu Avatāra and Christian Kenosis: A New Approach in Comparative Theology1

The Heythrop Journal, Volume 66, Issue 3, Page 223-237, May 2025.
Abstract Within comparative theology, the Hindu doctrine of avatāra has traditionally been compared to the Christian doctrine of the incarnation, both of which are expressions of divine embodiment in creaturely form. This article, however, contrasts the doctrine of avatāra with a reading of the incarnation that frames the latter within the broader ...
Christian J. Ivandić
wiley   +1 more source

Scale Dependence of the Halo Bias in General Local-Type Non-Gaussian Models I: Analytical Predictions and Consistency Relations

, 2012
We investigate the clustering of halos in cosmological models starting with general local-type non-Gaussian primordial fluctuations. We employ multiple Gaussian fields and add local-type non-Gaussian corrections at arbitrary order to cover a class of ...
, A. Becker, A. Lewis, A. Pillepich, A. Slosar, B.A. Reid, C. Wagner, C.T. Byrnes, C.T. Byrnes, D. Jeong, E. Sefusatti, H. Mo, J.-O. Gong, J.-Q. Xia, J.-Q. Xia ., K. Enqvist, K.M. Smith, K.M. Smith, L. Verde, M. LoVerde, M. LoVerde, M. Maggiore, N. Kaiser, R. Scoccimarro, S. Chongchitnan, S. Cole, S. Matarrese, S. Matarrese, S. Shandera, S. Yokoyama, T. Baldauf, T. Nishimichi, T. Suyama, T.Y. Lam, Takahiro Nishimichi, The Planck collaboration, WMAP collaboration   +36 more
core   +1 more source

Multi‐isotope (N, O, Ti, and Cr) study of C1 and CM‐like clasts—Probing unsampled C1 material

Meteoritics &Planetary Science, Volume 60, Issue 5, Page 1073-1094, May 2025.
Abstract A multi‐element isotope (N, O, Ti, and Cr) study was conducted on C1 and CM‐like clasts hosted in achondrites and chondrite breccias to understand the genesis of these chondritic clasts. The mineralogy, O, and N isotopes confirm that CM‐like clasts in howardites and polymict eucrites closely resemble CM chondrite‐like material.
Markus Patzek, Yogita Kadlag, Miriam Rüfenacht, Evelyn Füri, Andreas Pack, Addi Bischoff, Harry Becker, Robbin Visser, Timm John, Maria Schönbächler   +9 more
wiley   +1 more source

FAST H i 21 cm Study of Blueberry Galaxies

The Astrophysical Journal Letters
Green Peas (GPs) and blueberry galaxies (BBs) are thought to be local analogs ( z < 0.1) of high redshift Ly α emitters. H i study of these can help us understand the star formation in the primordial Universe.
Yogesh Chandola, Chao-Wei Tsai, D. J. Saikia, Guodong Li, Di Li, Yin-Zhe Ma   +5 more
doaj   +1 more source

Supermassive Dark Stars and Their Remnants as a Possible Solution to Three Recent Cosmic Dawn Puzzles

Universe
The James Webb Space Telescope (JWST) has begun to revolutionize our view of the Cosmos. The discovery of Blue Monsters (i.e., ultra-compact yet very bright high-z galaxies) and the Little Red Dots (i.e., very compact dustless strong Balmer break cosmic ...
Cosmin Ilie, Jillian Paulin, Andreea Petric, Katherine Freese   +3 more
doaj   +1 more source

COLDSIM predictions of [C II] emission in primordial galaxies

Astronomy & Astrophysics
Context. A powerful tool with which to probe the gas content at high redshift is the [C II] 158 μm submillimetre emission line, which, due to its low excitation potential and luminous emission, is considered a possible direct tracer of star forming gas. Aims.
Benedetta Casavecchia, Umberto Maio, Céline Péroux, Benedetta Ciardi   +3 more
openaire   +4 more sources