289 citations · 1.9k across the 24 of their papers we have counts for
7 papers · 1 filter
On the origin of the asymmetric dwarf galaxy distribution around Andromeda
Zhen Wan, William H. Oliver, Geraint F. Lewis +2
The dwarf galaxy distribution surrounding M31 is significantly anisotropic in nature. Of the 30 dwarf galaxies in this distribution, 15 form a disc-like structure and 23 are contai…
To beta or not to beta: can higher-order Jeans analysis break the mass-anisotropy degeneracy in simulated dwarfs?
Anna Genina, Justin I. Read, Carlos S. Frenk +6
We test a non-parametric higher-order Jeans analysis method, GravSphere, on 32 simulated dwarf galaxies comparable to classical Local Group dwarfs like Fornax. The galaxies are sel…
EDGE: The origin of scatter in ultra-faint dwarf stellar masses and surface brightnesses
Martin P. Rey, Andrew Pontzen, Oscar Agertz +4
We demonstrate how the least luminous galaxies in the Universe, ultra-faint dwarf galaxies, are sensitive to their dynamical mass at the time of cosmic reionization. We select a lo…
Antlia2's role in driving the ripples in the outer gas disk of the Galaxy
Sukanya Chakrabarti, Philip Chang, Adrian Price-Whelan +3
We employ the earlier published proper motions of the newly discovered Antlia 2 dwarf galaxy derived from Gaia data to calculate its orbital distribution in the cosmologically rece…
EDGE: the mass-metallicity relation as a critical test of galaxy formation physics
Oscar Agertz, Andrew Pontzen, Justin I. Read +7
We introduce the "Engineering Dwarfs at Galaxy formation's Edge" (EDGE) project to study the cosmological formation and evolution of the smallest galaxies in the Universe. In this…
Kinematics of the Tucana Dwarf Galaxy: An Unusually Dense Dwarf in the Local Group
Alexandra L. Gregory, Michelle L. M. Collins, Justin I. Read +5
We present new FLAMESGIRAFFE spectroscopy of 36 member stars in the isolated Local Group dwarf spheroidal galaxy Tucana. We measure a systemic velocity for the system of $v_{\ma…