Search Publications
Close entrainment of massive molecular gas flows by radio bubbles in the central galaxy of Abell 1795
Fabian, A. C.; Combes, F.; McDonald, M. +8 more
We present new ALMA observations tracing the morphology and velocity structure of the molecular gas in the central galaxy of the cluster Abell 1795. The molecular gas lies in two filaments that extend 5-7 kpc to the N and S from the nucleus and project exclusively around the outer edges of two inner radio bubbles. Radio jets launched by the centra…
The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from DR12 galaxy clustering - towards an accurate model
Rubiño-Martín, J. A.; Brownstein, Joel R.; Ho, Shirley +28 more
We analyse the broad-range shape of the monopole and quadrupole correlation functions of the Baryon Oscillation Spectroscopic Survey Data Release 12 (DR12) CMASS and LOWZ galaxy sample to obtain constraints on the Hubble expansion rate H(z), the angular-diameter distance DA(z), the normalized growth rate f(z)σ8(z) and the phy…
The X-ray properties of Be/X-ray pulsars in quiescence
Tsygankov, Sergey S.; Lutovinov, Alexander A.; Poutanen, Juri +2 more
Observations of accreting neutron stars (NSs) with strong magnetic fields can be used not only for studying the accretion flow interaction with the NS magnetospheres, but also for understanding the physical processes inside NSs and for estimating their fundamental parameters. Of particular interest are (I) the interaction of a rotating NS (magneto…
Kinematic Structure of Molecular Gas around High-mass YSO, Papillon Nebula, in N159 East in the Large Magellanic Cloud: A New Perspective with ALMA
Lebouteiller, Vianney; Inoue, Tsuyoshi; Tokuda, Kazuki +20 more
We present the ALMA Band 3 and Band 6 results of 12CO(2-1), 13CO(2-1), H30α recombination line, free-free emission around 98 GHz, and the dust thermal emission around 230 GHz toward the N159 East Giant Molecular Cloud (N159E) in the Large Magellanic Cloud (LMC). LMC is the nearest active high-mass star-forming face-on galaxy …
Evidence for Atmospheric Cold-trap Processes in the Noninverted Emission Spectrum of Kepler-13Ab Using HST/WFC3
Madhusudhan, Nikku; Knutson, Heather A.; Wright, Jason T. +5 more
We observed two eclipses of the Kepler-13A planetary system, on UT 2014 April 28 and UT 2014 October 13, in the near-infrared using Wide Field Camera 3 on the Hubble Space Telescope. By using the nearby binary stars Kepler-13BC as a reference, we were able to create a differential light curve for Kepler-13A that had little of the systematics typic…
Dust and gas in star-forming galaxies at z 3. Extending galaxy uniformity to 11.5 billion years
Daddi, E.; Elbaz, D.; Dickinson, M. +10 more
We present millimetre dust emission measurements of two Lyman-break galaxies at z 3 and construct for the first time fully sampled infrared spectral energy distributions (SEDs), from mid-IR to the Rayleigh-Jeans tail, of individually detected, unlensed, UV-selected, main sequence (MS) galaxies at z = 3. The SED modelling of the two sources confirm…
Kinetic Alfvén wave explanation of the Hall fields in magnetic reconnection
Lavraud, Benoit; Wang, Chi; Dai, Lei +4 more
Magnetic reconnection is initiated in a small diffusion region but can drive global-scale dynamics in Earth's magnetosphere, solar flares, and astrophysical systems. Understanding the processes at work in the diffusion region remains a main challenge in space plasma physics. Recent in situ observations from Magnetospheric Multiscale and Time Histo…
Earth-Affecting Coronal Mass Ejections Without Obvious Low Coronal Signatures
Nitta, Nariaki V.; Mulligan, Tamitha
We present a study of the origin of coronal mass ejections (CMEs) that were not accompanied by obvious low coronal signatures (LCSs) and yet were responsible for appreciable disturbances at 1 AU. These CMEs characteristically start slowly. In several examples, extreme ultraviolet (EUV) images taken by the Atmospheric Imaging Assembly onboard the S…
The birth and growth of a solar wind cavity around a comet - Rosetta observations
Behar, E.; Nilsson, H.; Goetz, C. +2 more
The Rosetta mission provided detailed observations of the growth of a cavity in the solar wind around comet 67P/Churyumov-Gerasimenko. As the comet approached the Sun, the plasma of cometary origin grew enough in density and size to present an obstacle to the solar wind. Our results demonstrate how the initial slight perturbations of the solar win…
Hybrid loop quantum cosmology and predictions for the cosmic microwave background
Castelló Gomar, Laura; Mena Marugán, Guillermo A.; Martín de Blas, Daniel +1 more
We investigate the consequences of the hybrid quantization approach for primordial perturbations in loop quantum cosmology, obtaining predictions for the cosmic microwave background and comparing them with data collected by the Planck mission. In this work, we complete previous studies about the scalar perturbations and incorporate tensor modes. W…