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HELP: a catalogue of 170 million objects, selected at 0.36-4.5 µm, from 1270 deg2 of prime extragalactic fields
Oliver, Seb; Vaccari, Mattia; Farrah, Duncan +15 more
We present an optical to near-infrared (NIR) selected astronomical catalogue covering 1270 deg2. This is the first attempt to systematically combine data from 23 of the premier extragalactic survey fields - the product of a vast investment of telescope time. The fields are those imaged by the Herschel Space Observatory that form the Her…
Consistent Dust and Gas Models for Protoplanetary Disks. III. Models for Selected Objects from the FP7 DIANA Project
Waters, L. B. F. M.; Pinte, C.; Woitke, P. +17 more
The European FP7 project DIANA has performed a coherent analysis of a large set of observational data of protoplanetary disks by means of thermo-chemical disk models. The collected data include extinction-corrected stellar UV and X-ray input spectra (as seen by the disk), photometric fluxes, low and high resolution spectra, interferometric data, e…
Achievements of Hinode in the first eleven years
Solanki, Sami K.; Tiwari, Sanjiv K.; Reeves, Katharine K. +33 more
Hinode is Japan's third solar mission following Hinotori (1981-1982) and Yohkoh (1991-2001): it was launched on 2006 September 22 and is in operation currently. Hinode carries three instruments: the Solar Optical Telescope, the X-Ray Telescope, and the EUV Imaging Spectrometer. These instruments were built under international collaboration with th…
Saturn's Deep Atmospheric Flows Revealed by the Cassini Grand Finale Gravity Measurements
Iess, L.; Guillot, T.; Miguel, Y. +4 more
How deep do Saturn's zonal winds penetrate below the cloud level has been a decades-long question, with important implications not only for the atmospheric dynamics but also for the interior density structure, composition, magnetic field, and core mass. The Cassini Grand Finale gravity experiment enables answering this question for the first time,…
MAGPHYS+photo-z: Constraining the Physical Properties of Galaxies with Unknown Redshifts
Daddi, E.; Salvato, M.; Vaccari, M. +8 more
We present an enhanced version of the multiwavelength spectral modeling code MAGPHYS that allows the estimation of galaxy photometric redshift and physical properties (e.g., stellar mass, star formation rate, dust attenuation) simultaneously, together with robust characterization of their uncertainties. The self-consistent modeling over ultraviole…
Cosmological constraints on neutrino self-interactions with a light mediator
Lattanzi, Massimiliano; Natoli, Paolo; Forastieri, Francesco
If active neutrinos undergo nonstandard ("secret") interactions (NS ν Is ), the cosmological evolution of the neutrino fluid might be altered, leaving an imprint in cosmological observables. We use the latest publicly available CMB data from Planck to constrain NS ν Is inducing ν -ν scattering, under the assumption that the mediator ϕ of the secre…
An emission spectrum for WASP-121b measured across the 0.8-1.1 µm wavelength range using the Hubble Space Telescope
Deming, Drake; Nikolov, Nikolay; Carter, Aarynn L. +11 more
WASP-121b is a transiting gas giant exoplanet orbiting close to its Roche limit, with an inflated radius nearly double that of Jupiter and a dayside temperature comparable to a late M dwarf photosphere. Secondary eclipse observations covering the 1.1-1.6 µm wavelength range have revealed an atmospheric thermal inversion on the dayside hemisp…
Half-mass Radii of Quiescent and Star-forming Galaxies Evolve Slowly from 0 ≲ z ≤ 2.5: Implications for Galaxy Assembly Histories
Barro, Guillermo; Kriek, Mariska; Price, Sedona H. +1 more
We use high-resolution, multiband imaging of ∼16,500 galaxies in the CANDELS fields at 0 ≲ z ≤ 2.5 to study the evolution of color gradients and half-mass radii over cosmic time. We find that galaxy color gradients at fixed mass evolve rapidly between z ∼ 2.5 and z ∼ 1, but remain roughly constant below z ∼ 1. This result implies that the sizes of…
Probing 3D structure with a large MUSE mosaic: extending the mass model of Frontier Field Abell 370
Carton, David; Mahler, Guillaume; Richard, Johan +12 more
We present an updated strong-lensing analysis of the massive cluster Abell 370 (A370), continuing the work first presented in L17. In this new analysis, we take advantage of the deeper imaging data from the Hubble Space Telescope Frontier Fields programme, as well as a large spectroscopic mosaic obtained with the Multi-Unit Spectroscopic Explorer …
A Model-independent Mass and Moderate Eccentricity for β Pic b
Kratter, Kaitlin M.; Dupuy, Trent J.; Bowler, Brendan P. +1 more
We use a cross-calibration of Hipparcos and Gaia second data release astrometry for β Pic to measure the mass of the giant planet β Pic b (13 ± 3 {M}Jup}) in a comprehensive joint orbit analysis that includes published relative astrometry and radial velocities. Our mass uncertainty is somewhat higher than previous work because our astro…