Results 61 to 70 of about 474,897 (288)
First Observations of SN 1604 (Kepler’s Supernova)
Universe, 2021 A supernova close enough to the Earth is a spectacular event: it can appear as a “new star” as luminous as Venus, or even more, visible for several days.
Alessandro de Angelis, Selenia Broccio
doaj +1 more source
Testing strong gravity with gravitational waves and Love numbers [PDF]
, 2017 The LIGO observation of GW150914 has inaugurated the gravitational-wave astronomy era and the possibility of testing gravity in extreme regimes. While distorted black holes are the most convincing sources of gravitational waves, similar signals might be ...
Cardoso, V. +3 more
core +1 more source
Mass-radius relation of compact objects [PDF]
Proceedings of the International Astronomical Union, 2019 AbstractCompact objects are of great interest in astrophysical research. There are active research interests in understanding better various aspects of formation and evolution of these objects. In this paper we addressed some problems related to the compact objects mass limit. We employed Einstein field equations (EFEs) to derive the equation of state (
Abaraya Seman, Biressa Tolu
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FEBS Open Bio, EarlyView.KLK7, a tissue kallikrein‐related peptidase, is elevated in advanced colorectal cancer and associated with shorter survival. High KLK7 levels in ascites correlate with peritoneal metastasis. In mice, KLK7 overexpression increases metastasis. In vitro, KLK7 enhances cancer cell proliferation, migration, adhesion, and spheroid formation, driving ...
Yosr Z. Haffani +6 more
wiley +1 more source
Analysis of class I complexity induced spherical polytropic models for compact objects
Frontiers in Astronomy and Space Sciences, 2023 In this research, we present a comprehensive framework that uses a complexity factor to analyze class I generalized relativistic polytropes. We establish class I generalized Lane–Emden equations using the Karmarkar condition under both isothermal and non-
Adnan Malik +3 more
doaj +1 more source
Compact Massive Object in Galaxies
, 2016 arXiv admin note: substantial text overlap with arXiv:1603 ...
Tosta e Melo, Capuzzo Dolcetta
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FEBS Open Bio, EarlyView.Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li +8 more
wiley +1 more source
Energy-Momentum Squared Gravity: A Brief Overview
UniverseIn this work, we present a review of Energy-Momentum Squared Gravity (EMSG)—more specifically, f(R,TμνTμν) gravity, where R represents the Ricci scalar and Tμν denotes the energy-momentum tensor.
Ricardo A. C. Cipriano +5 more
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Estimating the Cosmological Constant from Shadows of Kerr–de Sitter Black Holes
Universe, 2022 The Event Horizon Telescope collaboration has revealed the first direct image of a black hole, as per the shadow of a Kerr black hole of general relativity. However, other Kerr-like rotating black holes of modified gravity theories cannot be ignored, and
Misba Afrin, Sushant G. Ghosh
doaj +1 more source
Double Compact Objects II: Cosmological Merger Rates
, 2013 The development of advanced gravitational wave (GW) observatories, such as Advanced LIGO and Advanced Virgo, provides impetus to refine theoretical predictions for what these instruments might detect.
Belczynski, Krzysztof +7 more
core +1 more source