Search Publications
Wide binaries in Tycho-Gaia: search method and the distribution of orbital separations
Agüeros, Marcel A.; Andrews, Jeff J.; Chanamé, Julio
We mine the Tycho-Gaia astrometric solution (TGAS) catalogue for wide stellar binaries by matching positions, proper motions and astrometric parallaxes. We separate genuine binaries from unassociated stellar pairs through a Bayesian formulation that includes correlated uncertainties in the proper motions and parallaxes. Rather than relying on assu…
Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey
Scott, D.; Dunlop, J. S.; Farrah, D. +19 more
We present a new exploration of the cosmic star formation history and dust obscuration in massive galaxies at redshifts 0.5 < z < 6. We utilize the deepest 450- and 850-µm imaging from SCUBA-2 CLS, covering 230 arcmin2 in the AEGIS, COSMOS and UDS fields, together with 100-250 µm imaging from Herschel. We demonstrate t…
Angular momentum evolution of galaxies over the past 10 Gyr: a MUSE and KMOS dynamical survey of 400 star-forming galaxies from z = 0.3 to 1.7
Smail, Ian; Alexander, D. M.; Swinbank, A. M. +23 more
We present a MUSE (Multi-Unit Spectroscopic Explorer) and KMOS (K-band Multi-Object Spectrograph) dynamical study 405 star-forming galaxies at redshift z = 0.28-1.65 (median redshift \bar{z} = 0.84). Our sample is representative of the star-forming 'main sequence', with star formation rates of SFR = 0.1-30 M⊙ yr-1 and stellar…
The SCUBA-2 Cosmology Legacy Survey: the nature of bright submm galaxies from 2 deg2 of 850-µm imaging
Bowler, R. A. A.; McLure, R. J.; Dunlop, J. S. +15 more
We present physical properties [redshifts (z), star-formation rates (SFRs) and stellar masses ({M_star})] of bright (S850 ≥ 4 mJy) submm galaxies in the ≃2 deg2 COSMOS and UDS fields selected with SCUBA-2/JCMT. We complete the galaxy identification process for all (≃2000) S/N ≥ 3.5 850-µm sources, but focus our scientif…
The cool-core state of Planck SZ-selected clusters versus X-ray-selected samples: evidence for cool-core bias
Rossetti, M.; Molendi, S.; Gastaldello, F. +4 more
We characterized the population of galaxy clusters detected with the Sunyaev-Zeldovich (SZ) effect with Planck by measuring the cool-core state of the objects in a well-defined subsample of the Planck SZ catalogue. We used as an indicator the concentration parameter. The fraction of cool-core clusters is 29 ± 4 per cent and does not show significa…
The KMOS Deep Survey (KDS) - I. Dynamical measurements of typical star-forming galaxies at z ≃ 3.5
McLure, R. J.; Dunlop, J. S.; Swinbank, A. M. +7 more
We present dynamical measurements from the KMOS (K-band multi-object spectrograph) Deep Survey (KDS), which comprises 77 typical star-forming galaxies at z ≃ 3.5 in the mass range 9.0 < log (M⋆/M⊙) < 10.5. These measurements constrain the internal dynamics, the intrinsic velocity dispersions (σint) and rotati…
Two new confirmed massive relic galaxies: red nuggets in the present-day Universe
Vazdekis, Alexandre; Trujillo, Ignacio; Balcells, Marc +4 more
We confirm two new local massive relic galaxies, I.e. untouched survivors of the early Universe massive population: Mrk 1216 and PGC 032873. Both show early and peaked formation events within very short time-scales (<1 Gyr) and thus old mean mass-weighted ages (∼13 Gyr). Their star formation histories remain virtually unchanged out to several e…
The KMOS Redshift One Spectroscopic Survey (KROSS): rotational velocities and angular momentum of z ≈ 0.9 galaxies★
Smail, Ian; Jarvis, M. J.; Swinbank, A. M. +12 more
We present dynamical measurements for 586 Hα-detected star-forming galaxies from the KMOS (K-band Multi-Object Spectrograph) Redshift One Spectroscopic Survey (KROSS). The sample represents typical star-forming galaxies at this redshift (z = 0.6-1.0), with a median star formation rate of ≈7 M⊙ yr-1 and a stellar mass range of…
A representative survey of the dynamics and energetics of FR II radio galaxies
Hardcastle, M. J.; Croston, J. H.; Ineson, J. +1 more
We report the first large, systematic study of the dynamics and energetics of a representative sample of Fanaroff-Riley type II (FR II) radio galaxies with well-characterized group/cluster environments. We used X-ray inverse-Compton and radio synchrotron measurements to determine the internal radio-lobe conditions, and these were compared with ext…
DYNAMO-HST survey: clumps in nearby massive turbulent discs and the effects of clump clustering on kiloparsec scale measurements of clumps
Glazebrook, Karl; Obreschkow, Danail; Abraham, Roberto G. +6 more
We present ∼100 pc resolution Hubble Space Telescope Hα images of 10 galaxies from the DYnamics of Newly-Assembled Massive Objects (DYNAMO) survey of low-z turbulent disc galaxies, and use these to undertake the first detailed systematic study of the effects of resolution and clump clustering on observations of clumps in turbulent discs. In the DY…