Milena Crnogorčević
@astronomilena.bsky.social
she/her | astrophysics postdoc @OKC | into the dark matters of the universe and all its messengers.
also: climbing walls, swimming, navigating like a confused roomba. 🍉
also: climbing walls, swimming, navigating like a confused roomba. 🍉
honored to summarize the work of so many brilliant colleagues pushing the boundaries of what we can (and can't yet) detect.
October 21, 2025 at 5:45 PM
honored to summarize the work of so many brilliant colleagues pushing the boundaries of what we can (and can't yet) detect.
[13/]
what are these two bright dots here, you ask?
we also checked two gamma ray sources nearby. one was too soft (wrong kind of spectrum), and the other (albeit harder spectrum) was the brightest 13 years *before* the neutrino showed up.
so neither is our likely culprit.
what are these two bright dots here, you ask?
we also checked two gamma ray sources nearby. one was too soft (wrong kind of spectrum), and the other (albeit harder spectrum) was the brightest 13 years *before* the neutrino showed up.
so neither is our likely culprit.
March 26, 2025 at 3:15 PM
[13/]
what are these two bright dots here, you ask?
we also checked two gamma ray sources nearby. one was too soft (wrong kind of spectrum), and the other (albeit harder spectrum) was the brightest 13 years *before* the neutrino showed up.
so neither is our likely culprit.
what are these two bright dots here, you ask?
we also checked two gamma ray sources nearby. one was too soft (wrong kind of spectrum), and the other (albeit harder spectrum) was the brightest 13 years *before* the neutrino showed up.
so neither is our likely culprit.
[12/]
here’s one takeaway: with no gamma rays, we can rule out a bunch of possible combinations of source distance (redshift z) and intergalactic magnetic field strength (B) that would produce a detectable cascade.
[Shaded regions = excluded by Fermi-LAT non-detection of gamma-ray cascade]
here’s one takeaway: with no gamma rays, we can rule out a bunch of possible combinations of source distance (redshift z) and intergalactic magnetic field strength (B) that would produce a detectable cascade.
[Shaded regions = excluded by Fermi-LAT non-detection of gamma-ray cascade]
March 26, 2025 at 3:15 PM
[12/]
here’s one takeaway: with no gamma rays, we can rule out a bunch of possible combinations of source distance (redshift z) and intergalactic magnetic field strength (B) that would produce a detectable cascade.
[Shaded regions = excluded by Fermi-LAT non-detection of gamma-ray cascade]
here’s one takeaway: with no gamma rays, we can rule out a bunch of possible combinations of source distance (redshift z) and intergalactic magnetic field strength (B) that would produce a detectable cascade.
[Shaded regions = excluded by Fermi-LAT non-detection of gamma-ray cascade]
[9/]
🚫 We find no cascade. No obvious counterpart in the gamma-ray sky.
But this is still interesting---I promise!
[here’s a sneak-peak into the year-by-year look at the gamma-ray sky around the neutrino.]
🚫 We find no cascade. No obvious counterpart in the gamma-ray sky.
But this is still interesting---I promise!
[here’s a sneak-peak into the year-by-year look at the gamma-ray sky around the neutrino.]
March 26, 2025 at 3:15 PM
[9/]
🚫 We find no cascade. No obvious counterpart in the gamma-ray sky.
But this is still interesting---I promise!
[here’s a sneak-peak into the year-by-year look at the gamma-ray sky around the neutrino.]
🚫 We find no cascade. No obvious counterpart in the gamma-ray sky.
But this is still interesting---I promise!
[here’s a sneak-peak into the year-by-year look at the gamma-ray sky around the neutrino.]
5/ 🤯 The Results?
No big gamma-ray excess---but a null result can be incredibly powerful! We set some of the tightest constraints on DM annihilation below a few hundred GeV.
No big gamma-ray excess---but a null result can be incredibly powerful! We set some of the tightest constraints on DM annihilation below a few hundred GeV.
January 28, 2025 at 5:01 PM
5/ 🤯 The Results?
No big gamma-ray excess---but a null result can be incredibly powerful! We set some of the tightest constraints on DM annihilation below a few hundred GeV.
No big gamma-ray excess---but a null result can be incredibly powerful! We set some of the tightest constraints on DM annihilation below a few hundred GeV.