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The Performance of Photometric Reverberation Mapping at High Redshift and the Reliability of Damped Random Walk Models
(2019-12-20)
Accurate methods for reverberation mapping using photometry are highly sought after since they are inherently less resource intensive than spectroscopic techniques. However, the effectiveness of photometric reverberation ...
Comparing simulated $^{26}$Al maps to gamma-ray measurements
(2019-12-03)
Context. The diffuse gamma-ray emission of $^{26}{\rm Al}$ at 1.8 MeV reflects ongoing nucleosynthesis in the Milky Way, and traces massive-star feedback in the interstellar medium due to its 1 Myr radioactive lifetime. ...
ATLASGAL -- physical parameters of dust clumps associated with 6.7 GHz methanol masers
(2019-12-01)
We have constructed the largest sample of dust-associated class II 6.7 GHz methanol masers yet obtained. New measurements from the the Methanol MultiBeam (MMB) Survey were combined with the 870 $\mu$m APEX Telescope Large ...
CHIMPS: Physical properties of molecular clumps across the inner Galaxy
(2019-12-01)
The latest generation of high-angular-resolution unbiased Galactic plane surveys in molecular-gas tracers are enabling the interiors of molecular clouds to be studied across a range of environments. The CHIMPS survey ...
Multi-wavelength properties of radio and machine-learning identified counterparts to submillimeter sources in S2COSMOS
(2019-11-20)
We identify multi-wavelength counterparts to 1,147 submillimeter sources from the S2COSMOS SCUBA-2 survey of the COSMOS field by employing a recently developed radio$+$machine-learning method trained on a large sample of ...
The Milky Way bar/bulge in proper motions: a 3D view from VIRAC & Gaia
(2019-11)
We have derived absolute proper motions of the entire Galactic bulge region from VIRAC and Gaia. We present these as both integrated on-sky maps and, after isolating standard candle red clump (RC) stars, as a function of ...
A LOFAR-IRAS cross-match study : the far-infrared radio correlation and the 150-MHz luminosity as a star-formation rate
(2019-11-01)
Aims. We aim to study the far-infrared radio correlation (FIRC) at 150 MHz in the local Universe (at a median redshift z~0:05) and improve the use of the rest-frame 150-MHz luminosity, L150, as a star-formation rate (SFR) ...
JINGLE V : Dust properties of nearby galaxies derived from hierarchical Bayesian SED fitting
(2019-11-01)
We study the dust properties of 192 nearby galaxies from the JINGLE survey using photometric data in the 22-850 μm range. We derive the total dust mass, temperature T, and emissivity index β of the galaxies through the ...
Galaxy morphological classification in deep-wide surveys via unsupervised machine learning
(2019-10-26)
Galaxy morphology is a fundamental quantity, that is essential not only for the full spectrum of galaxy-evolution studies, but also for a plethora of science in observational cosmology. While a rich literature exists on ...
Generative deep fields : arbitrarily sized, random synthetic astronomical images through deep learning
(2019-10-21)
Generative Adversarial Networks (GANs) are a class of artificial neural network that can produce realistic, but artificial, images that resemble those in a training set. In typical GAN architectures these images are small, ...