Eduardo Vitral
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evitral.bsky.social
Eduardo Vitral
@evitral.bsky.social
Astrophysicist 🛰️🌌⚫️ | Globular clusters | Dwarf galaxies | Black holes | Dark matter | 🇧🇷🇮🇹🇫🇷🇺🇸🏴󠁧󠁢󠁳󠁣󠁴󠁿 | He/him
Website: https://eduardo-vitral.github.io
Thank you for this list! Would you mind adding me, please? :)
November 24, 2024 at 9:15 AM
Reposted by Eduardo Vitral
#dwarfgalaxies2024 serendipitously found the hedgehog galaxy. Named because it's cute and spiky. It's an isolated, quenched dwarf at 2.4Mpc.
August 2, 2024 at 8:57 AM
yay 😆
August 2, 2024 at 8:18 AM
Reposted by Eduardo Vitral
Some key points from Draco: based on multiple epochs, binaries not having a significant impact. Seems like Draco is cusped, and the stars are mostly on tangential orbits. #dwarfgalaxies2024
August 1, 2024 at 2:09 PM
Reposted by Eduardo Vitral
#dwarfgalaxies2024 holy cow those are *proper motion dispersions* with the same error bars as the radial velocities. Can rule out a cored profile with 2 sigma confidence. Next is Scl, UMi, and JWST!
August 1, 2024 at 2:11 PM
Reposted by Eduardo Vitral
#dwarfgalaxies2024 Massive satellites cause multiple clumps in energy and angular momentum space over multiple orbits. Can also have different chemical signatures if progenitor has a metallicity gradient. This means we may be identifying the same merger events as different mergers.
July 31, 2024 at 9:14 AM
Hubble! For proper motions with huge time baselines 😊
October 10, 2023 at 9:53 AM