Revealing new high-redshift quasar populations through Gaussian mixture model selection

Astronomy & Astrophysics EDP Sciences 660 (2022) A22-A22

Authors:

JD Wagenveld, A Saxena, KJ Duncan, HJA Röttgering, M Zhang

Abstract:

Galaxie

No strong dependence of Lyman continuum leakage on physical properties of star-forming galaxies at 3.1 ≲ z ≲ 3.5

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 511:1 (2022) stab3728-

Authors:

A Saxena, L Pentericci, RS Ellis, L Guaita, A Calabró, D Schaerer, E Vanzella, R Amorín, M Bolzonella, M Castellano, F Fontanot, NP Hathi, P Hibon, M Llerena, F Mannucci, A Saldana-Lopez, M Talia, G Zamorani

EDGE: the puzzling ellipticity of Eridanus II's star cluster and its implications for dark matter at the heart of an ultra-faint dwarf

(2022)

Authors:

Matthew DA Orkney, Justin I Read, Oscar Agertz, Andrew Pontzen, Martin P Rey, Alex Goater, Ethan Taylor, Stacy Y Kim, Maxime Delorme

Catalogues of voids as antihaloes in the local Universe

Monthly Notices of the Royal Astronomical Society: Letters Oxford University Press 511:1 (2022) L45-L49

Authors:

H Desmond, Ml Hutt, J Devriendt, A Slyz

Abstract:

A recently proposed algorithm identifies voids in simulations as the regions associated with haloes when the initial overdensity field is negated. We apply this method to the real Universe by running a suite of constrained simulations of the 2M++ volume with initial conditions inferred by the BORG algorithm, along with the corresponding inverted set. Our 101 inverted and uninverted simulations, spanning the BORG posterior, each identify ∼150 000 ‘voids as antihaloes’ with mass exceeding 4.38 × 1011 M⊙ (100 particles) at z = 0 in a full-sky sphere of radius 155 Mpc h−1 around the Milky Way. We calculate the size function, volume filling fraction, ellipticity, central density, specific angular momentum, clustering, and stacked density profile of the voids, and cross-correlate them with those produced by VIDE on the same simulations. We make our antihalo and VIDE catalogues publicly available.

Revealing new high redshift quasar populations through Gaussian mixture model selection

ArXiv 2201.11724 (2022)

Authors:

JD Wagenveld, A Saxena, KJ Duncan, HJA Röttgering, M Zhang