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11 papers · 2 filters
Shaping the Milky Way. II. The dark matter halo's response to the LMC's passage in a cosmological context
Elise Darragh-Ford, Nicolas Garavito-Camargo, Arpit Arora +15
The distribution of dark matter in the Milky Way (MW) is expected to exhibit a large-scale dynamical response to the recent infall of the LMC. This event produces a dynamical frict…
Quasars acting as Strong Lenses Found in DESI DR1
Everett McArthur, Martin Millon, Meredith Powell +52
Quasars acting as strong gravitational lenses offer a rare opportunity to probe the redshift evolution of scaling relations between supermassive black holes and their host galaxies…
Dwarf galaxy halo masses from spectroscopic and photometric lensing in DESI and DES
Helena Treiber, Alexandra Amon, Risa H. Wechsler +46
We present the most precise and lowest-mass weak lensing measurements of dwarf galaxies to date, enabled by spectroscopic lenses from the Dark Energy Spectroscopic Instrument (DESI…
SAGAbg III: Environmental Stellar Mass Functions, Self-Quenching, and the Stellar-to-Halo Mass Relation in the Dwarf Galaxy Regime
Erin Kado-Fong, Yao-Yuan Mao, Yasmeen Asali +8
Recent efforts have extended our view of the number and properties of satellite galaxies beyond the Local Group firmly down to . A similarly complete…
The SAGA Survey. VI. The Size-Mass Relation for Low-Mass Galaxies Across Environments
Yasmeen Asali, Marla Geha, Erin Kado-Fong +10
We investigate how Milky Way-like environments influence the sizes and structural properties of low-mass galaxies by comparing satellites of Milky Way analogs from the Satellites A…
A DECADE of dwarfs: first detection of weak lensing around spectroscopically confirmed low-mass galaxies
Chun-Hao To, Chihway Chang, Dhayaa Anbajagane +35
We present the first detection of weak gravitational lensing around spectroscopically confirmed dwarf galaxies, using the large overlap between DESI DR1 spectroscopic data and DECA…