The primordial matter power spectrum on sub-galactic scales

Autor: Daniel Gilman, Andrew Benson, Jo Bovy, Simon Birrer, Tommaso Treu, Anna Nierenberg

Publikováno v: Monthly Notices of the Royal Astronomical Society. 512:3163-3188

The primordial matter power spectrum quantifies fluctuations in the distribution of dark matter immediately following inflation. Over cosmic time, over-dense regions of the primordial density field grow and collapse into dark matter halos, whose abun

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9cdafa399d4f5cd247bb36160cb55dd
https://doi.org/10.1093/mnras/stac670

Gaia GraL: Gaia DR2 Gravitational Lens Systems. VII. XMM-Newton Observations of Lensed Quasars

Autor: Thomas Connor, Daniel Stern, Alberto Krone-Martins, S. G. Djorgovski, Matthew J. Graham, Dominic J. Walton, Ludovic Delchambre, Christine Ducourant, Ramachrisna Teixeira, Jean-François Le Campion, Jakob Sebastian den Brok, Dougal Dobie, Laurent Galluccio, Priyanka Jalan, Sergei A. Klioner, Jonas Klüter, Ashish A. Mahabal, Vibhore Negi, Anna Nierenberg, Quentin Petit, Sergio Scarano Jr, Eric Slezak, Dominique Sluse, Carolina Spíndola-Duarte, Jean Surdej, Joachim Wambsganss

We present XMM-Newton X-ray observations of nine confirmed lensed quasars at $1 \lesssim z \lesssim 3$ identified by the Gaia Gravitational Lens program. Eight systems are strongly detected, with 0.3--8.0 keV fluxes $F_{0.3-8.0} \gtrsim 5 \times 10^{

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df8da77bf8943c05cfdd1e14de8e07f3

Warm dark matter chills out: constraints on the halo mass function and the free-streaming length of dark matter with eight quadruple-image strong gravitational lenses

Autor: Xiaolong Du, Tommaso Treu, Anna Nierenberg, Daniel Gilman, Simon Birrer, Andrew J. Benson

Publikováno v: Monthly Notices of the Royal Astronomical Society. 491:6077-6101

The free-streaming length of dark matter depends on fundamental dark matter physics, and determines the abundance and concentration of dark matter haloes on sub-galactic scales. Using the image positions and flux ratios from eight quadruply imaged qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59dd7fa97d3b4e61b420087e03b3c85f
https://doi.org/10.1093/mnras/stz3480

Dark Matter Constraints from a Unified Analysis of Strong Gravitational Lenses and Milky Way Satellite Galaxies

Autor: Andrew J. Benson, Anna Nierenberg, Risa H. Wechsler, Simon Birrer, Tommaso Treu, Daniel Gilman, Xiaolong Du, Ethan O. Nadler

Joint analyses of small-scale cosmological structure probes are relatively unexplored and promise to advance measurements of microphysical dark matter properties using heterogeneous data. Here, we present a multidimensional analysis of dark matter su

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fae4937cc9814dee9c6d6850b0f42c2c
http://arxiv.org/abs/2101.07810

Double dark matter vision: Twice the number of compact-source lenses with narrow-line lensing and the WFC3 grism

Autor: Timo Anguita, Adriano Agnello, Veronica Motta, Annika H. G. Peter, G. Brammer, Daniel Gilman, Christopher D. Fassnacht, Dominique Sluse, Leonidas A. Moustakas, Tommaso Treu, Anna Nierenberg, Simon Birrer

Publikováno v: Nierenberg, A M, Gilman, D, Treu, T, Brammer, G, Birrer, S, Moustakas, L, Agnello, A, Anguita, T, Fassnacht, C D, Motta, F, Peter, A H G & Sluse, D 2020, ' Double dark matter vision : twice the number of compact-source lenses with narrow-line lensing and the WFC3 grism ', Monthly Notices of the Royal Astronomical Society, vol. 492, no. 4, pp. 5314-5335 . https://doi.org/10.1093/mnras/stz3588

The magnifications of compact-source lenses are extremely sensitive to the presence of low mass dark matter halos along the entire sight line from the source to the observer. Traditionally, the study of dark matter structure in compact-source strong

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a673ff8dd47cff960d64811addc3472
http://repositorio.unab.cl/xmlui/handle/ria/19692