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Dec 5, 2024 | 
academic.oup.com | Madingley Road |Wilberforce Road
Globular clusters (GCs) are sites of extremely efficient star formation, and recent studies suggest they significantly contributed to the early Milky Way’s stellar mass build-up. Although their role has since diminished, GCs’ impact on the Galaxy’s initial evolution can be traced today by identifying their most chemically unique stars—those with anomalous nitrogen and aluminum overabundances and oxygen depletion.
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Dec 5, 2024 | academic.oup.com | Madingley Road |Wilberforce Road
Globular clusters (GCs) are sites of extremely efficient star formation, and recent studies suggest they significantly contributed to the early Milky Way’s stellar mass build-up. Although their role has since diminished, GCs’ impact on the Galaxy’s initial evolution can be traced today by identifying their most chemically unique stars—those with anomalous nitrogen and aluminum overabundances and oxygen depletion.
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Nov 14, 2024 | 
academic.oup.com | Wilberforce Road
In this Paper we determine the non-dissipative tidal evolution of a close binary system with an arbitrary eccentricity in which the spin angular momenta of both components is misaligned with the orbital angular momentum. We focus on the situation where the orbital angular momentum dominates the spin angular momenta and so remains at small inclination to the conserved total angular momentum.
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Oct 3, 2024 | 
link.aps.org | Fiona Mccarthy |Wilberforce Road |Madingley Road |Dalila Pîrvu
Dark photons that kinetically mix with the Standard Model photon give rise to new spectral anisotropies (patchy dark screening) in the cosmic microwave background (CMB) due to conversion of photons to dark photons within large-scale structure.
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Oct 3, 2024 | link.aps.org | Fiona Mccarthy |Wilberforce Road |Madingley Road |Dalila Pîrvu
Dark photons that kinetically mix with the Standard Model photon give rise to new spectral anisotropies (patchy dark screening) in the cosmic microwave background (CMB) due to conversion of photons to dark photons within large-scale structure.
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Aug 17, 2024 | 
academic.oup.com | Wilberforce Road
The main hurdle of planet formation theory is the metre-scale barrier. One of the most promising ways to overcome it is via the streaming instability (SI). Unfortunately, the mechanism responsible for the onset of this instability remains mysterious. It has recently been shown that the SI is a Resonant Drag Instability (RDI) involving inertial waves. We build on this insight and clarify the physical picture of how the SI develops, while bolstering this picture with transparent mathematics.
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Aug 14, 2024 | 
academic.oup.com | Liverpool John Moores |Wilberforce Road
Redshift space distortions (RSDs) appear as an apparent anisotropy in the clustering of galaxies along the line of sight produced by their peculiar velocities. This motion traces the local gravitational potential and thus observations of the strength of the distortions is a powerful probe of gravity and structure formation. RSDs are a key probe for many current and planned large volume galaxy surveys such as DESI (Dark Energy Spectroscopic Instrument Collaboration 2016), Euclid (Laureijs et al.
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Aug 5, 2024 | 
link.aps.org | George T Fortune |Wilberforce Road |Eric Lauga |Raymond E. Goldstein
The humble Petri dish is perhaps the simplest setting in which to examine the locomotion of swimming organisms, particularly those whose body size is tens of microns to millimeters. The fluid layer in such a container has a bottom no-slip surface and a stress-free upper boundary. It is of fundamental interest to understand the flow fields produced by the elementary and composite singularities of Stokes flow in this geometry.
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May 3, 2024 | 
academic.oup.com | Madingley Road |Wilberforce Road |ana m |Mandel K. S
Type Ia supernovae (SNe Ia) are bright, thermonuclear explosions of carbon–oxygen white dwarfs in a binary system (e.g. see Maguire 2017). They are excellent distance indicators, were used for the discovery of the accelerated expansion of the Universe (Riess et al. 1998; Perlmutter et al. 1999), and play a central role in precisely constraining the properties of dark energy, for example its equation of state (w) and time dependence (w ) (Brout et al. 2022; Dark Energy Survey Collaboration 2024).
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Apr 30, 2024 | 
academic.oup.com | Madingley Road |Wilberforce Road
We present GausSN, a Bayesian semi-parametric Gaussian Process (GP) model for time-delay estimation with resolved systems of gravitationally lensed supernovae (glSNe). GausSN models the underlying light curve non-parametrically using a GP. Without assuming a template light curve for each SN type, GausSN fits for the time delays of all images using data in any number of wavelength filters simultaneously.
