A census of dwarf galaxy satellites around LMC-mass galaxy NGC 2403

JL Carlin, DJ Sand, B Mutlu-Pakdil… - The Astrophysical …, 2024 - iopscience.iop.org
We present the first comprehensive census of the satellite population around a Large
Magellanic Cloud stellar-mass galaxy, as part of the Magellanic Analog Dwarf Companions …

SN 2023tsz: a helium-interaction-driven supernova in a very low-mass galaxy

B Warwick, J Lyman, M Pursiainen… - Monthly Notices of …, 2025 - academic.oup.com
ABSTRACT SN 2023tsz is a Type Ibn supernova (SN Ibn), an uncommon subtype of
stripped-envelope core-collapse supernovae (SNe), discovered in an extremely low-mass …

The Hubble Space Telescope Survey of M31 Satellite Galaxies. IV. Survey Overview and Lifetime Star Formation Histories

A Savino, DR Weisz, AE Dolphin… - The Astrophysical …, 2025 - iopscience.iop.org
From> 1000 orbits of HST imaging, we present deep homogeneous resolved star color–
magnitude diagrams that reach the oldest main-sequence turnoff and uniformly measured …

Cosmic Rays Masquerading as Hot CGM Gas: An Inverse-Compton Origin for Diffuse X-ray Emission in the Circumgalactic Medium

PF Hopkins, E Quataert, SB Ponnada… - arxiv preprint arxiv …, 2025 - arxiv.org
Observations have argued that Milky Way (MW), Andromeda, and lower-mass galaxies
exhibit extended soft X-ray diffuse halos to radii $ R\gtrsim100\, $ kpc in the circumgalactic …

Decoding Dark Matter Halos through the Lens of Machine Learning

TV Nguyen - 2024 - dspace.mit.edu
Dark matter (DM) constitutes about 85% of the matter in the Universe, yet its particle nature
remains one of the greatest outstanding questions in astrophysics. DM halos act as the …