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Cluster richness-mass calibration with cosmic microwave background lensing
(2017-11-01)
Identifying galaxy clusters through overdensities of galaxies in photometric surveys is the oldest and arguably the most economic and mass-sensitive detection method, compared to X-ray and Sunyaev-Zel'dovich Effect surveys ...
The Hi-GAL compact source catalogue – I. The physical properties of the clumps in the inner Galaxy (−71. ◦ 0 < ℓ < 67.◦ 0)
(2017-10-11)
Hi-GAL (Herschel InfraRed Galactic Plane Survey) is a large-scale survey of the Galactic plane, performed with Herschel in five infrared continuum bands between 70 and 500 µm. We present a band-merged catalogue of spatially ...
Evidence for orbital motion of CW Leonis from ground-based astrometry
(2017-10)
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations indicate that CW Leo, the closest carbon-rich asymptotic giant branch star to Sun, might have a low-mass stellar companion. We present archival ...
The s-process nucleosynthesis : Impact of the uncertainties in the nuclear physics determined by monte carlo variations
(2017-10-01)
We investigated the impact of uncertainties in neutron-capture and weak reactions (on heavy elements) on the s-process nucleosynthesis in low-mass stars and massive stars using a Monte-Carlo based approach. We performed ...
An X-ray survey of the 2 Jy sample - II. X-ray emission from extended structures
(2017-09-21)
The 2 Jy sample is a survey of radio galaxies with flux densities above 2 Jy at 2.7 GHz. As part of our ongoing work on the southern subset of 2 Jy sources, in paper I of this series we analysed the X-ray cores of the ...
An automatic taxonomy of galaxy morphology using unsupervised machine learning
(2017-09-15)
We present an unsupervised machine learning technique that automatically segments and labels galaxies in astronomical imaging surveys using only pixel data. Distinct from previous unsupervised machine learning approaches ...
A new method for finding and characterizing galaxy groups via low-frequency radio surveys
(2017-09-11)
We describe a new method for identifying and characterizing the thermodynamic state of large samples of evolved galaxy groups at high redshifts using high-resolution, low-frequency radio surveys, such as those that will ...
Thermal Feedback in the High-mass Star- and Cluster-forming Region W51
(2017-06-16)
High-mass stars have generally been assumed to accrete most of their mass while already contracted onto the main sequence, but this hypothesis has not been observationally tested. We present ALMA observations of a 3 × 1.5 ...
First Results from BISTRO : A SCUBA-2 Polarimeter Survey of the Gould Belt
(2017-06-14)
We present the first results from the B-fields In STar-forming Region Observations (BISTRO) survey, using the Sub-millimetre Common-User Bolometer Array 2 camera, with its associated polarimeter (POL-2), on the James Clerk ...
Chasing discs around O-type (proto)stars : Evidence from ALMA observations
(2017-06-13)
Context. Circumstellar discs around massive stars could mediate the accretion onto the star from the infalling envelope, and could minimize the effects of radiation pressure. Despite such a crucial role, only a few convincing ...