activity
20202026
most citedStrong constraints on the gravitational law from DR3 wide binaries

56 citations · 151 across the 18 of their papers we have counts for

collaborators
Showing 2023Show all

5 papers · 1 filter

astro-ph.GA2023★ 1 cited

Charting the Galactic acceleration field II. A global mass model of the Milky Way from the STREAMFINDER Atlas of Stellar Streams detected in Gaia DR3

Rodrigo Ibata, Khyati Malhan, Wassim Tenachi +17

We present an atlas and follow-up spectroscopic observations of 87 thin stream-like structures detected with the STREAMFINDER algorithm in Gaia DR3, of which 29 are new discoveries…

astro-ph.GA2023★ 10 cited

Could very low-metallicity stars with rotation-dominated orbits have been shepherded by the bar?

Zhen Yuan, Chengdong Li, Nicolas F. Martin +11

The most metal-poor stars (e.g. [Fe/H] ) are the ancient fossils from the early assembly epoch of our Galaxy, very likely before the formation of the thick disc. Recent s…

astro-ph.GA2023★ 10 cited

Exploring the impact of a rapidly decelerating bar on transforming bulge orbits into disc-like orbits

Chengdong Li, Zhen Yuan, Giacomo Monari +7

The most metal-poor tail of the Milky Way ([Fe/H] 2.5) contains a population of stars with very prograde planar orbits, which is puzzling in both their origin and evoluti…

astro-ph.GA2023★ 15 cited

Micro galaxies in LCDM

Raphaël Errani, Rodrigo Ibata, Julio F. Navarro +2

A fundamental prediction of the Lambda Cold Dark Matter (LCDM) cosmology is the centrally divergent cuspy density profile of dark matter haloes. Density cusps render CDM haloes res…

astro-ph.SR2023★ 56 cited

Strong constraints on the gravitational law from DR3 wide binaries

Indranil Banik, Charalambos Pittordis, Will Sutherland +4

We test Milgromian dynamics (MOND) using wide binary stars (WBs) with separations of kAU. Locally, the WB orbital velocity in MOND should exceed the Newtonian prediction by…