A new bright z=6.82 quasar discovered with VISTA: VHS J0411-0907

Kavli Affiliate: R. G. McMahon | First 5 Authors: Estelle Pons, Richard G. McMahon, Robert A. Simcoe, Manda Banerji, Paul C. Hewett | Summary: We present the discovery of a new $z sim 6.8$ quasar discovered with the near-IR VISTA Hemisphere Survey (VHS) which has been spectroscopically confirmed by the ESO New Technology Telescope (NTT) […]


Continue.. A new bright z=6.82 quasar discovered with VISTA: VHS J0411-0907

Wide nutation: binary black-hole spins repeatedly oscillating from full alignment to full anti-alignment

Kavli Affiliate: Ulrich Sperhake | First 5 Authors: Davide Gerosa, Alicia Lima, Emanuele Berti, Ulrich Sperhake, Michael Kesden | Summary: Within the framework of 2PN black-hole binary spin precession, we explore configurations where one of the two spins oscillates from being completely aligned with the orbital angular momentum to being completely anti-aligned with it during […]


Continue.. Wide nutation: binary black-hole spins repeatedly oscillating from full alignment to full anti-alignment

Gravitationally lensed quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2

Kavli Affiliate: R. G. McMahon | First 5 Authors: Cameron A. Lemon, Matthew W. Auger, Richard G. McMahon, , | Summary: We report the discovery and spectroscopic confirmation of 22 new gravitationally lensed quasars found using $textit{Gaia}$ data release 2. The selection was made using several techniques: multiple $textit{Gaia}$ detections around objects in quasar candidate […]


Continue.. Gravitationally lensed quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2

Gravitationally lensed quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2

Kavli Affiliate: R. G. McMahon | First 5 Authors: Cameron A. Lemon, Matthew W. Auger, Richard G. McMahon, , | Summary: We report the discovery and spectroscopic confirmation of 22 new gravitationally lensed quasars found using $textit{Gaia}$ data release 2. The selection was made using several techniques: multiple $textit{Gaia}$ detections around objects in quasar candidate […]


Continue.. Gravitationally lensed quasars in Gaia: III. 22 new lensed quasars from Gaia Data Release 2

Bayesian sparse reconstruction: a brute-force approach to astronomical imaging and machine learning

Kavli Affiliate: Anthony Lasenby | First 5 Authors: Edward Higson, Will Handley, Michael Hobson, Anthony Lasenby, | Summary: We present a principled Bayesian framework for signal reconstruction, in which the signal is modelled by basis functions whose number (and form, if required) is determined by the data themselves. This approach is based on a Bayesian […]


Continue.. Bayesian sparse reconstruction: a brute-force approach to astronomical imaging and machine learning

Optical Design of PICO, a Concept for a Space Mission to Probe Inflation and Cosmic Origins

Kavli Affiliate: Richard Hills | First 5 Authors: Karl Young, Marcelo Alvarez, Nicholas Battaglia, Jamie Bock, Julian Borrill | Summary: The Probe of Inflation and Cosmic Origins (PICO) is a probe-class mission concept currently under study by NASA. PICO will probe the physics of the Big Bang and the energy scale of inflation, constrain the […]


Continue.. Optical Design of PICO, a Concept for a Space Mission to Probe Inflation and Cosmic Origins

The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

Kavli Affiliate: Richard Hills | First 5 Authors: Stephen C. Parshley, Michael D. Niemack, Richard Hills, Simon R. Dicker, Rolando Dünner | Summary: A common optical design for a coma-corrected, 6-meter aperture, crossed-Dragone telescope has been adopted for the CCAT-prime telescope of CCAT Observatory, Inc., and for the Large Aperture Telescope of the Simons Observatory. […]


Continue.. The optical design of the six-meter CCAT-prime and Simons Observatory telescopes

CCAT-prime: a novel telescope for submillimeter astronomy

Kavli Affiliate: Richard Hills | First 5 Authors: Stephen C. Parshley, Jörg Kronshage, James Blair, Terry Herter, Mike Nolta | Summary: The CCAT-prime telescope is a 6-meter aperture, crossed-Dragone telescope, designed for millimeter and sub-millimeter wavelength observations. It will be located at an altitude of 5600 meters, just below the summit of Cerro Chajnantor in […]


Continue.. CCAT-prime: a novel telescope for submillimeter astronomy

Planck 2018 results. X. Constraints on inflation

Kavli Affiliate: E. P. S. Shellard | First 5 Authors: Planck Collaboration, Y. Akrami, F. Arroja, M. Ashdown, J. Aumont | Summary: We report on the implications for cosmic inflation of the 2018 Release of the Planck CMB anisotropy measurements. The results are fully consistent with the two previous Planck cosmological releases, but have smaller […]


Continue.. Planck 2018 results. X. Constraints on inflation

Planck 2018 results. VI. Cosmological parameters

Kavli Affiliate: E. P. S. Shellard | First 5 Authors: Planck Collaboration, N. Aghanim, Y. Akrami, M. Ashdown, J. Aumont | Summary: We present cosmological parameter results from the final full-mission Planck measurements of the CMB anisotropies. We find good consistency with the standard spatially-flat 6-parameter $Lambda$CDM cosmology having a power-law spectrum of adiabatic scalar […]


Continue.. Planck 2018 results. VI. Cosmological parameters