2026-09-05 15:43:03 UTC
JD 2461289.15
STATION 04 · MULTI-MESSENGER OBSERVATORY WIRE

High-Energy Transient Alert Desk

Continuous verification desk for extreme cosmological transients: gravitational waves from compact mergers, millisecond fast radio bursts, ultra-relativistic gamma-ray jets, and astrophysical PeV neutrinos.

Indexed Transients ⚡
14
Multi-messenger events catalogued
Deepest Cosmic Horizon REDSHIFT
z = 1.19
AT 2022cmc · 8.5 Billion light-years
Shortest Coherent Pulse DURATION
0.33 ms
FRB 20220610A · ASKAP detection
Max Photon Energy ENERGY
18 TeV
GRB 221009A · LHAASO gamma-ray
All Wire (14) Gravitational Wave (3) Fast Radio Burst (3) Gamma-Ray Burst (3) Supernova / Optical (2) Tidal Disruption Event (1) High-Energy Neutrino (2)
SN 2023ixf
Zwicky Transient Facility (ZTF) / Itagaki
Supernova / Optical
Sky Coordinates
14h 03m 38.56s · +54° 18' 56.4"
Luminosity Distance
21 Million ly (6.4 Mpc)
Constellation
Ursa Major (Messier 101)
Redshift
z = 0.0008

Closest Core-Collapse Supernova in a Decade in Pinwheel Galaxy (M101)

SN 2023ixf was a brilliant Type II supernova discovered in the spiral arms of Messier 101 (The Pinwheel Galaxy) at a distance of only 21 million light-years. Early "flash spectroscopy" during the first 24 hours revealed intense, narrow emission lines indicating the shock breakout was plowing into dense circumstellar material ejected by the red supergiant progenitor just months before detonation.

Keck Observatory (LRIS) Swift UVOT / XRT VLA & NOEMA
AT 2022cmc
Zwicky Transient Facility (ZTF)
Tidal Disruption Event
Sky Coordinates
13h 34m 58.5s · +33° 09' 54"
Luminosity Distance
8.5 Billion ly (z = 1.193)
Constellation
Canes Venatici
Redshift
z = 1.1930

Relativistic Jet Launched by Supermassive Black Hole Shredding a Star

AT 2022cmc is one of only four confirmed relativistic Tidal Disruption Events (TDEs) ever observed. Discovered as an extremely luminous, rapidly fading optical transient by ZTF, extensive multi-wavelength follow-up revealed a supermassive black hole at z = 1.193 that disrupted a star and launched a relativistic Doppler-boosted jet pointing almost directly at Earth.

ESO VLT (X-shooter) NICER & Swift XRT NOEMA & VLA
SN 2024ggi
ATLAS (Asteroid Terrestrial-impact Last Alert System)
Supernova / Optical
Sky Coordinates
11h 18m 16.1s · -32° 50' 20"
Luminosity Distance
22 Million ly (6.7 Mpc)
Constellation
Hydra (NGC 3621)
Redshift
z = 0.0024

Core-Collapse Supernova in Nearby Spiral NGC 3621 in Hydra

Discovered in the spiral galaxy NGC 3621 at approximately 22 million light-years, SN 2024ggi offered astronomers a rare close-up look at the terminal demise of a massive star. Prompt spectroscopic follow-up detected early circumstellar flash signatures that rapidly evolved into a classical Type II plateau as the expanding hydrogen envelope expanded and cooled.

SALT (South African Large Telescope) Swift UVOT