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Jan 6, 2025 | 
academic.oup.com | Gower Street |NRC Herzberg Astronomy
We present 450 m and 850 m James Clerk Maxwell Telescope (JCMT) observations of the Corona Australis (CrA) molecular cloud taken as part of the JCMT Gould Belt Legacy Survey (GBLS). We present a catalogue of 39 starless and protostellar sources, for which we determine source temperatures and masses using SCUBA-2 450 m/850 m flux density ratios for sources with reliable 450 m detections, and compare these to values determined using temperatures measured by the Herschel Gould Belt Survey (HGBS).
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Jan 6, 2025 | 
academic.oup.com | Madingley Road |Aix Marseille Université |Gower Street
The advent of the JWST has facilitated the robust detection of extremely high-redshift galaxies out to (e.g. Arrabal Haro et al. 2023; Curtis-Lake et al. 2023; Finkelstein et al. 2024; Carniani et al. 2024; Castellano et al. 2024; D’Eugenio et al. 2024). The detection of these galaxies pushes back the onset of Cosmic Dawn to at least . The identification of galaxies at such redshifts was previously predicted by various studies (Hashimoto et al. 2018; Roberts-Borsani et al. 2020; Laporte et al.
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Nov 26, 2024 | 
academic.oup.com | Gower Street |Denys Wilkinson Building |Keble Road
The utility of Type Ia supernovae (SNe Ia) in cosmology arises from the fact that they are empirically standardizable candles, and are bright enough to be observed out to redshift .
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Nov 21, 2024 | 
academic.oup.com | Gower Street
A new phosphorous mononitride (31P14N, 31P15N) line list PaiN covering infrared, visible and ultraviolet regions is presented. The PaiN line list extending to theA 1Π – X 1Σ+ vibronic band system, replaces the previous YYLT ExoMol line list for PN. A thorough analysis of high resolution experimental spectra from the literature involving the X 1Σ+ and A 1Π states is conducted, and many perturbations to the A 1Π energies are considered as part of a comprehensive MARVEL study.
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Nov 12, 2024 | 
academic.oup.com | Madingley Road |Gower Street |de Graaff
We present NIRSpec/MSA observations from the JWST large-area survey WIDE, targeting the rest-frame UV–optical spectrum of Ulema, a radio-AGN host at redshift z = 4.6348. The low-resolution prism spectrum displays high equivalent width nebular emission, with remarkably high ratios of low-ionisation species of oxygen, nitrogen and sulphur, relative to hydrogen; auroral O+ emission is clearly detected, possibly also C+.
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Nov 6, 2024 | 
academic.oup.com | Gower Street
Since Philip Wright’s (1928) proposal of the linear instrumental variables (IV) estimator the scope of application of IV models has greatly expanded. There are now nonlinear IV models in use with both additive and nonadditive latent variables, employing both semiparametric and nonparametric specifications. A notable feature of Wright’s linear IV estimator is that it is applicable to incomplete models that leave the genesis of endogenous explanatory variables unspecified.
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Sep 13, 2024 | 
academic.oup.com | Denys Wilkinson Building |Keble Road |Gower Street
We assess the usefulness of gradient-based samplers, such as the No-U-Turn Sampler ( ), by comparison with traditional Metropolis-Hastings algorithms, in tomographic 3 × 2 point analyses. Specifically, we use the DES Year 1 data and a simulated future LSST-like survey as representative examples of these studies, containing a significant number of nuisance parameters (20 and 32, respectively) that affect the performance of rejection-based samplers.
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Sep 3, 2024 | 
link.aps.org | R. Johnson |Gower Street |Harwell Science
A recent experimental study of TbB4 at a low temperature using resonant x-ray Bragg diffraction implies a magnetic symmetry not found in any other rare-earth tetraboride. The evidence for this assertion is a change in the intensity of a TbB4 Bragg spot on reversing the handedness (chirality) of the primary x-ray beam [R. Misawa, K. Arakawa, T. Yoshioka, H. Ueda, F. Iga, K. Tamasaku, Y. Tanaka, and T. Kimura, Phys. Rev. B 108, 134433 (2023)].
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Jul 30, 2024 | 
academic.oup.com | Keppel Street |Gower Street
Micro-randomized trials are commonly conducted for optimizing mobile health interventions such as push notifications for behavior change. In analyzing such trials, causal excursion effects are often of primary interest, and their estimation typically involves inverse probability weighting (IPW).
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Jul 12, 2024 | 
academic.oup.com | Gower Street |West Smithfield
In “The Alternative Fairytale,” I explore my journey as a cardiology registrar/fellow, a path influenced deeply by my early displacement from war-torn Sudan. This piece reflects on the interplay between my professional choices and personal identity amidst the backdrop of a male-dominated field and societal expectations.
