121 citations · 363 across the 12 of their papers we have counts for
12 papers
Carbon-Enhanced Dwarf Stars Are Predominantly a Halo Population
Jay Farihi, Jason L. Sanders, Sophia Lilleengen +2
This paper reports a Galactic kinematical and dynamical analysis of 1003 main-sequence carbon stars. The sample is drawn from the Sloan Digital Sky Survey, and cross-matched with G…
Nearby stellar substructures in the Galactic halo from DESI Milky Way Survey Year 1 Data Release
Bokyoung Kim, Sergey E. Koposov, Ting S. Li +41
We report five nearby ( kpc) stellar substructures in the Galactic halo from a subset of 138,661 stars in the Dark Energy Spectroscopic Instrument (DESI) Mi…
Exploring the interaction between the MW and LMC with a large sample of blue horizontal branch stars from the DESI survey
Amanda Byström, Sergey E. Koposov, Sophia Lilleengen +42
The Large Magellanic Cloud (LMC) is a Milky Way (MW) satellite that is massive enough to gravitationally attract the MW disc and inner halo, causing significant motion of the inner…
LMC Calls, Milky Way Halo Answers: Disentangling the Effects of the MW--LMC Interaction on Stellar Stream Populations
Richard A. N. Brooks, Nicolás Garavito-Camargo, Kathryn V. Johnston +3
The infall of the LMC into the Milky Way (MW) has dynamical implications throughout the MW's dark matter halo. We study the impact of this merger on the statistical properties of p…
Inferring dark matter subhalo properties from simulated subhalo-stream encounters
Tariq Hilmi, Denis Erkal, Sergey E. Koposov +9
In the cold dark matter paradigm, our Galaxy is predicted to contain >10000 dark matter subhaloes in the range which should be completely devoid of stars. Stella…
Action and energy clustering of stellar streams in deforming Milky Way dark matter haloes
Richard A. N. Brooks, Jason L. Sanders, Sophia Lilleengen +2
We investigate the non-adiabatic effect of time-dependent deformations in the Milky Way (MW) halo potential on stellar streams. Specifically, we consider the MW's response to the i…
: Probing the Milky Way and Magellanic Clouds potentials with the 6-D map of the Orphan-Chenab stream
Sergey E. Koposov, Denis Erkal, Ting S. Li +11
We present a 6-D map of the Orphan-Chenab (OC) stream by combining the data from Southern Stellar Stream Spectroscopic Survey () and {\it Gaia}. We reconstruct the proper moti…
Streams on FIRE: Populations of Detectable Stellar Streams in the Milky Way and FIRE
Nora Shipp, Nondh Panithanpaisal, Lina Necib +18
We present the first detailed study comparing the populations of stellar streams in cosmological simulations to observed Milky Way dwarf galaxy streams. In particular, we compare s…
How do the dynamics of the Milky Way -- Large Magellanic Cloud system affect gamma-ray constraints on particle dark matter?
Christopher Eckner, Francesca Calore, Denis Erkal +2
Previous studies on astrophysical dark matter (DM) constraints have all assumed that the Milky Way's (MW) DM halo can be modelled in isolation. However, recent work suggests that t…
The effect of the deforming dark matter haloes of the Milky Way and the Large Magellanic Cloud on the Orphan-Chenab stream
Sophia Lilleengen, Michael S. Petersen, Denis Erkal +13
It has recently been shown that the Large Magellanic Cloud (LMC) has a substantial effect on the Milky Way's stellar halo and stellar streams. Here, we explore how deformations of…
Measuring the Mass of the Large Magellanic Cloud with Stellar Streams Observed by
Nora Shipp, Denis Erkal, Alex Drlica-Wagner +16
Stellar streams are excellent probes of the underlying gravitational potential in which they evolve. In this work, we fit dynamical models to five streams in the Southern Galactic…
Accreted Globular Clusters in External Galaxies: Why Adaptive Dynamics is not the Solution
Sophia Lilleengen, Wilma H. Trick, Glenn van de Ven
Many astrophysical and galaxy-scale cosmological problems require a well determined gravitational potential which is often modeled by observers under strong assumptions. Globular c…