activity
20132026
most cited3D stellar kinematics at the Galactic center: measuring the nuclear star cluster spatial density profile, black hole mass, and distance

80 citations · 92 across the 15 of their papers we have counts for

collaborators

16 papers

astro-ph.GA2026

The Merian Survey: A Statistical Census of Bright Satellites of Sub-Milky Way-Mass Galaxies

Lucas S. Mandacarú Guerra, Jiaxuan Li, Yue Pan +9

Satellite populations provide sensitive tests of the galaxy-halo connection, but studies have largely focused on Milky Way (MW)-mass host galaxies or a small number of nearby dwarf…

hep-ph2026

Benchmark Dark SMEFT Scenarios from the Interplay of Flavor Physics and Dark Matter Searches

Lipika Kolay, Soumitra Nandi, Ipsita Ray

We investigate the interplay between low-energy flavor physics and dark matter (DM) phenomenology within the dimension-6 dark Standard Model Effective Field Theory (dSMEFT), featur…

astro-ph.GA2026

Morphologies of SAGAbg low-mass galaxies in Legacy Survey multi-band imaging: dependence on stellar masses, star-formation rates and low-redshift evolution

Joy Bhattacharyya, Guinevere Herron, Yasmeen Asali +4

The optical morphologies of low-mass galaxies can be used to directly trace their assembly and constrain models of galaxy evolution. We select a sample of 6211 low-mass ($7\lesssim…

astro-ph.GA2026

Trends with Mass for Dwarf Galaxies from the Marvelous Massive Dwarfs Suite

Dilys Ruan, Alyson M. Brooks, Leonardo A. Barba +7

Galaxy formation scenarios can be interpreted through galaxy morphology and the level of rotational versus pressure support, quantified through the ratio of a galaxy's rotation spe…

astro-ph.GA2026

Bypassed Core Formation in Milky Way-Mass SIDM Halos: Implications for the Local Group Past-Pericenter Scenario

Zhichao Carton Zeng, Odelia V. Hartl, Louis E. Strigari +4

We consider a scenario in which the Milky Way (MW) and M31 have had a previous pericentric passage, and investigate its compatibility with self-interacting dark matter (SIDM). Usin…

astro-ph.GA2025

The Merian Survey: A Statistical Census of Bright Satellites of Milky Way Analogs

Yue Pan, Shany Danieli, Jenny E. Greene +10

We present a statistical census of bright, star-forming satellite galaxies around Milky Way (MW) analogs using the first data release of the Merian Survey. Our sample consists of 3…

astro-ph.GA2025

Dwarf diversity in CDM with baryons

Akaxia Cruz, Alyson Brooks, Mariangela Lisanti +7

Observed rotation curves of dwarf galaxies exhibit significant diversity at fixed halo mass, challenging galaxy formation within the Cold Dark Matter (CDM) model. Previous cosmolog…

astro-ph.CO2025

The Roman View of Strong Gravitational Lenses

Bryce Wedig, Tansu Daylan, Simon Birrer +13

Galaxy-galaxy strong gravitational lenses can constrain dark matter models and the Lambda Cold Dark Matter cosmological paradigm at sub-galactic scales. Currently, there is a deart…

astro-ph.GA2025

The NGC3109 Satellite System: The First Systematic Resolved Search for Dwarf Galaxies Around a SMC-mass Host

Amandine Doliva-Dolinsky, Burçin Mutlu-Pakdil, Denija Crnojević +38

We report the results of the deepest search to date for dwarf galaxies around NGC3109, a barred spiral galaxy with a mass similar to that of the Small Magellanic Cloud (SMC), using…

astro-ph.GA2025★ 7 cited

Dwarf Galaxies in the TNG50 Field: connecting their Star-formation Rates with their Environments

Joy Bhattacharyya, Annika H. G. Peter, Alexie Leauthaud

The dwarf galaxies comparable to the LMC and SMC, with stellar masses , are found in a diversity of environments and have long quenching tim…

astro-ph.GA2024★ 1 cited

Diversity and universality: evolution of dwarf galaxies with self-interacting dark matter

Zhichao Carton Zeng, Annika H. G. Peter, Xiaolong Du +4

Dark matter halos with self-interacting dark matter (SIDM) experience a unique evolutionary phenomenon, in that their central regions eventually collapse to high density through th…

astro-ph.GA2024

Merian: A Wide-Field Imaging Survey of Dwarf Galaxies at z~0.06-0.10

Shany Danieli, Erin Kado-Fong, Song Huang +32

We present the Merian Survey, an optical imaging survey optimized for studying the physical properties of bright star-forming dwarf galaxies. Merian is carried out with two medium-…

astro-ph.GA2024

A Nonparametric Morphological Analysis of H Emission in Bright Dwarfs Using the Merian Survey

Abby Mintz, Jenny E. Greene, Erin Kado-Fong +10

Using medium-band imaging from the newly released Merian Survey, we conduct a nonparametric morphological analysis of H emission maps and stellar continua for a sample of galaxi…

astro-ph.GA2024★ 2 cited

Segue 2 Recently Collided with the Cetus-Palca Stream: New Opportunities to Constrain Dark Matter in an Ultra-Faint Dwarf

Hayden R. Foote, Gurtina Besla, Nicolás Garavito-Camargo +7

Stellar streams in the Milky Way are promising detectors of low-mass dark matter (DM) subhalos predicted by CDM. Passing subhalos induce perturbations in streams that indicate t…

astro-ph.GA2023★ 2 cited

Environmental Quenching of Low Surface Brightness Galaxies near Milky Way mass Hosts

J. Bhattacharyya, A. H. G. Peter, P. Martini +48

Low Surface Brightness Galaxies (LSBGs) are excellent probes of quenching and other environmental processes near massive galaxies. We study an extensive sample of LSBGs near massiv…

astro-ph.GA2013★ 80 cited

3D stellar kinematics at the Galactic center: measuring the nuclear star cluster spatial density profile, black hole mass, and distance

T. Do, G. D. Martinez, S. Yelda +6

We present 3D kinematic observations of stars within the central 0.5 pc of the Milky Way nuclear star cluster using adaptive optics imaging and spectroscopy from the Keck telescope…