Got another 1.5 hours of light last night from nearby(ish) galaxy NGC 3621 which features the recent supernova #SN2024ggi
Have now been grabbing light from this event over a few months and can see its colour/flux temporal evolution.
Caught it with VIVID’s extreme light pollution too! (VIVID is a very popular festival of light here in Sydney in which light pollution increases by several orders of magnitude!)
Fun things that can happen at a conference: tomorrow there will be a heated discussion about the correct way to remove a foreground from an extragalactic observation - the sort of life and death fights you have in astronomy 😅
But guess how many experts in the actual observation and foreground modelling are present at this conference:
ZERO.
So chairs are likely going to be thrown for nothing...
New, on @TheConversationUS:
I'm an Astrophysicist mapping the Universe with data from #ChandraXRay: Clear, sharp photos help me study energetic black holes.
Beautiful (at least to me!) last rendering of the gas temperature in an evolving simulated volume - where the frequent bubble like explosion are the combination of AGN feedback or star formation - combined with the Faraday Rotation Measure by the injected magnetic fields in the same volume.
Cool to have the same colleagues arguing about a question they already debated a year ago (conference I organised back then) , getting to the same standstill, as if they had no chance of exchanging mails in a year 🙄 #astrodon#astronomy
With two new gravitational-wave candidates on May 27, there are now 101 such likely astrophysical events in O4, the fourth observing run of the gravitational-wave detectors @LIGO, Virgo, KAGRA, and GEO600.
The researchers still need to investigate the signal candidates in more detail before characterizing and publishing them in scientific papers.
Fingers crossed that there will be 200 gravitational-wave events at the end of O4 (in February 2025).
If you haven't noticed, radio astronomers worldwide are getting very shouty at radio frequency interference (RFI - akin to light pollution) increasing.
We create these multi-billion, grand-scale projects in specifically legislated radio quiet zones away from human populations to ensure we have the best capabilities to detect the faintest signals from the furthers reaches of the cosmos.
Then along comes the RFI from satellite constellations.
#WhatAboutMagneticFields ?
some people gathered this week (actually, also in the past few weeks, but that's the only one I am attending) at the Bernoulli Centre in Lausanne to know more... #astrodon#astronomy
Colourised animation processing data from: https://psa.esa.int
ESA Mars Express HRSC
Orbit: 14388
2015-05-05 T16:01:18 > T16:01:35.424Z
IDs: 5 Frames
HE388_0003_SR3 >>>> HE388_0007_SR3
1 frame added to make it smoother
Credits:
Raw Data:
ESA/DLR/G.Neukum-FUBerlin
Processing: AndreaLuck CC BY
Oh now THIS is very intriguing! Bernhard and Lloyd with ZTF J185259.31+124955.2: A new evolved disc-eclipsing binary system where the shape of the transit is evolving significantly on every eclipse - look at how much it changes… just wow. 🔭🪐 #astrodonhttps://arxiv.org/abs/2405.15555
The black hole that ate its own star. This is some neat science!
A new paper reports that VFTS 243, a massive binary system featuring an O-class star and a 10 solar-mass black hole companion, might have formed through the 'complete collapse scenario'.