Search Publications
Missions
Journals
Publication Years
Charge-Induced Force Noise on Free-Falling Test Masses: Results from LISA Pathfinder
Mendes, L.; Madden, S.; Russano, G. +93 more
We report on electrostatic measurements made on board the European Space Agency mission LISA Pathfinder. Detailed measurements of the charge-induced electrostatic forces exerted on free-falling test masses (TMs) inside the capacitive gravitational reference sensor are the first made in a relevant environment for a space-based gravitational wave de…
Study of the aluminium content in AGB winds using ALMA. Indications for the presence of gas-phase (Al2O3)n clusters
Waters, L. B. F. M.; Decin, L.; Richards, A. M. S. +8 more
Context. The condensation of inorganic dust grains in the winds of evolved stars is poorly understood. As of today, it is not yet known which molecular clusters form the first dust grains in oxygen-rich (C/O < 1) asymptotic giant branch (AGB) winds. Aluminium oxides and iron-free silicates are often put forward as promising candidates for the f…
Spectroscopic properties of luminous Ly α emitters at z ≈ 6-7 and comparison to the Lyman-break population
Sobral, David; Mobasher, Bahram; Darvish, Behnam +5 more
We present spectroscopic follow-up of candidate luminous Ly α emitters (LAEs) at z = 5.7-6.6 in the SA22 field with VLT/X-SHOOTER. We confirm two new luminous LAEs at z = 5.676 (SR6) and z = 6.532 (VR7), and also present HST follow-up of both sources. These sources have luminosities LLy α ≈ 3 × 1043 erg s-1, very h…
LOFAR Discovery of the Fastest-spinning Millisecond Pulsar in the Galactic Field
Burnett, T. H.; Camilo, F.; Michelson, P. F. +15 more
We report the discovery of PSR J0952-0607, a 707 Hz binary millisecond pulsar that is now the fastest-spinning neutron star known in the Galactic field (I.e., outside of a globular cluster). PSR J0952-0607 was found using LOFAR at a central observing frequency of 135 MHz, well below the 300 MHz to 3 GHz frequencies typically used in pulsar searche…
Methodology to create a new total solar irradiance record: Making a composite out of multiple data records
Schöll, Micha; Dudok de Wit, Thierry; Fröhlich, Claus +1 more
Many observational records critically rely on our ability to merge different (and not necessarily overlapping) observations into a single composite. We provide a novel and fully traceable approach for doing so, which relies on a multiscale maximum likelihood estimator. This approach overcomes the problem of data gaps in a natural way and uses data…
Massive post-starburst galaxies at z > 1 are compact proto-spheroids
Simpson, Chris; Wild, Vivienne; Almaini, Omar +6 more
We investigate the relationship between the quenching of star formation and the structural transformation of massive galaxies, using a large sample of photometrically selected post-starburst galaxies in the UKIDSS Ultra-Deep Survey field. We find that post-starburst galaxies at high redshift (z > 1) show high Sérsic indices, significantly highe…
WISDOM Project - II. Molecular gas measurement of the supermassive black hole mass in NGC 4697
Sarzi, Marc; Cappellari, Michele; Davis, Timothy A. +3 more
As part of the mm-Wave Interferometric Survey of Dark Object Masses (WISDOM) project, we present an estimate of the mass of the supermassive black hole (SMBH) in the nearby fast-rotating early-type galaxy NGC 4697. This estimate is based on Atacama Large Millimeter/submillimeter Array (ALMA) cycle-3 observations of the 12CO(2-1) emissio…
Modeling the Anomalous Microwave Emission with Spinning Nanoparticles: No PAHs Required
Draine, B. T.; Hensley, Brandon S.
In light of recent observational results indicating an apparent lack of correlation between the anomalous microwave emission (AME) and mid-infrared emission from polycyclic aromatic hydrocarbons, we assess whether rotational emission from spinning silicate and/or iron nanoparticles could account for the observed AME without violating observational…
An X-ray/SDSS sample. I. Multi-phase outflow incidence and dependence on AGN luminosity
Brusa, M.; Lanzuisi, G.; Perna, M. +2 more
Aims: The connection between the growth of super-massive black holes (SMBHs) and the evolution of their host galaxies is nowadays well established, although the underlying mechanisms explaining their mutual relations are still debated. Multi-phase fast, massive outflows have been postulated to play a crucial role in this process. The aim of t…
The Y-type Brown Dwarfs: Estimates of Mass and Age from New Astrometry, Homogenized Photometry, and Near-infrared Spectroscopy
Luhman, K. L.; Tremblin, P.; Morley, Caroline V. +2 more
The survey of the mid-infrared sky by the Wide-field Infrared Survey Explorer (WISE) led to the discovery of extremely cold, low-mass brown dwarfs, classified as Y dwarfs, which extend the T class to lower temperatures. Twenty-four Y dwarfs are known at the time of writing. Here we present improved parallaxes for four of these, determined using Sp…