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William (Will) Cerny

@wcerny.bsky.social

345 followers 179 following 11 posts

Astronomer-in-training. Formerly: Univ. of Chicago, now at Yale Astronomy. Big fan of the Milky Way and its satellite galaxies! he/him wcerny.github.io

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William (Will) Cerny @wcerny.bsky.social · 15/09/2026

We're back with more Rubin Milky Way satellite fun: introducing Rubin-GC1! Discovered and analyzed by Aashay Pai, this new satellite is likely a low-luminosity globular cluster on the far side of the Galaxy, lying along a rather dusty sightline. Read the paper here! arxiv.org/abs/2609.15872

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William (Will) Cerny @wcerny.bsky.social · 13/09/2023

I'm a day late, but I wanted to advertise the latest paper from the DES and DELVE collaborations, led by Mitch McNanna! The paper's results include the discovery of a *very* diffuse (resolved) dwarf galaxy candidate near the LMC-mass host NGC 55 (D ~ 2 Mpc). Read it here: arxiv.org/abs/2309.04467

Stellar density map centered on the new diffuse dwarf galaxy candidate, showing a clear concentration of black points indicative of the dwarf galaxy's presence. At the bottom of the image, an elliptical concentration of stars associated with its host, the LMC-mass galaxy NGC 55, are visible. The satellite appears to be about 1/3 the diameter of its host!

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