Florent Mertens, M. Mevius, L. V. E. Koopmans, A. R. Offringa et al.
ABSTRACT A new upper limit on the 21 cm signal power spectrum at a redshift of z ≈ 9.1 is presented, based on 141 h of data obtained with the Low-Frequency Array (LOFAR). The analysis includes significant improvements in spectrally smooth gain-calibration, Gaussian Process Regression (GPR) foregroun...
P. K. Shukla, A. A. Mamun
Three important classes of nonlinear phenomena, namely solitons, shocks and vortices in dusty plasmas, have been discussed. The static and mobile charged dust grains have been considered in order to study all of these nonlinear phenomena. The effects of nonplanar geometry, dust grain charge fluctuat...
Manoj Kumer Ghosh, Lalit Kumar, Chandan Roy
D. Lynden–Bell
We show that accretion disks with magnetic fields in them ought to make jets provided that their electrical conductivity prevents slippage and there is an ambient pressure in their surroundings. We study equilibria of highly wound magnetic structures. General Energy theorems demonstrate that they fo...
Andrew Foster
In this paper, it is argued that fluctuations in child growth in rural areas of Bangladesh during and after severe floods in 1988 can provide insight into the structure of credit markets. A model of intertemporal resource allocation is developed and Euler equations relating growth patterns of childr...
C. Hellier, D. R. Anderson, A. Collier Cameron, A. P. Doyle et al.
We present seven new transiting hot Jupiters from the WASP-South survey. The planets are all typical hot Jupiters orbiting stars from F4 to K0 with magnitudes of V = 10.3-12.5. The orbital periods are all in the range of 3.9-4.6 d, the planetary masses range from 0.4 to 2.3 M Jup and the radii from ...
Md. Golam Mahabub Sarwar, Colin D. Woodroffe
A. A. Mamun, P. K. Shukla
Recent observations reveal that plasmas in cometary tails contain charged dust grains of positive and negative polarities. Our objective here is to show that such a two‐component dusty plasma supports dust‐Langmuir and dust‐acoustic waves. The latter in the nonlinear regime propagate in the form of ...
M. G. Aartsen, K. Abraham, M. Ackermann, J. Adams et al.
We present an improved event-level likelihood formalism for including neutrino telescope data in global fits to new physics. We derive limits on spin-dependent dark matterproton scattering by employing the new formalism in a re-analysis of data from the 79-string IceCube search for dark matter annih...
Toshitaka Baba, S. Allgeyer, M. J. Hossen, Phil R. Cummins et al.
Ian Heywood, I. Rammala, F. Camilo, W. D. Cotton et al.
Abstract The inner ∼200 pc region of the Galaxy contains a 4 million M ⊙ supermassive black hole (SMBH), significant quantities of molecular gas, and star formation and cosmic-ray energy densities that are roughly two orders of magnitude higher than the corresponding levels in the Galactic disk. At ...
M. Shah Nawaz Chowdhury, Brenda Walles, S.M. Sharifuzzaman, M. Shahadat Hossain et al.
Oyster reefs have the potential as eco-engineers to improve coastal protection. A field experiment was undertaken to assess the benefit of oyster breakwater reefs to mitigate shoreline erosion in a monsoon-dominated subtropical system. Three breakwater reefs with recruited oysters were deployed on a...
Theresa Wiegert, Judith Irwin, A. Miskolczi, Philip Schmidt et al.
Author: Wiegert, T. et al.; Genre: Journal Article; Issued: 2015-09; Keywords: galaxies: magnetic fields, galaxies: star formation, ISM: magnetic fields, radio continuum: galaxies; Title: CHANG-ES. IV. Radio Continuum Emission of 35 Edge-on Galaxies Observed with the Karl G. Jansky Very Large Array ...
Francesco D’Eugenio, Alex J. Cameron, Jan Scholtz, Stefano Carniani et al.
Abstract We present the third data release of the JWST Advanced Deep Extragalactic Survey (JADES), providing both imaging and spectroscopy in the two GOODS fields. Spectroscopy consists of medium-depth and deep NIRSpec/microshutter assembly spectra of 4000 targets, covering the spectral range 0.6–5....
Kyle Frankel Davis, Abinash Bhattachan, Paolo D’Odorico, Samir Suweis
Climate change is expected to impact the habitability of many places around the world in significant and unprecedented ways in the coming decades. While previous studies have provided estimates of populations potentially exposed to various climate impacts, little work has been done to assess the num...