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Posts by Tom Killestein

Close-up of a two-star system consisting of a main sequence star and a dwarf star. The dwarf star is stealing matter from the main sequence star via an accretion disk that orbits around this star at high speeds. The image is an artist’s impression of such a system.

Close-up of a two-star system consisting of a main sequence star and a dwarf star. The dwarf star is stealing matter from the main sequence star via an accretion disk that orbits around this star at high speeds. The image is an artist’s impression of such a system.

Many of the stars in our Milky Way are part of binary systems. A good percentage of these systems are composed of two stars that orbit each other at a certain distance, but there are other binaries where both of the stars are so close that we can say they almost touch each other. #AstroSci 1/13

9 months ago 3 1 1 0
Public take the lead in discovery of new exploding star

Warwick press release: Public take the lead in discovery of new exploding star
warwick.ac.uk/news/pressre...

Article by Killestein et al.: www.aanda.org/10.1051/0004...

9 months ago 1 1 0 0
The Gravitational-Wave Optical Transient Observer

Read more about GOTO here: goto-observatory.org

Join the hunt for kilonovae, supernovae, and other outbursting objects like GOTO0650 at Kilonova Seekers: www.zooniverse.org/projects/tki...

9 months ago 1 0 0 0

GOTO0650 was discovered in data from the @goto-network.bsky.social by volunteers on the @zooniverse.bsky.social platform, within 4 hours of the images being taken. An intensive follow-up campaign began immediately with AAVSO citizen scientists and Las Cumbres Observatory's 0.4m telescope network.

9 months ago 2 1 1 0
Public take the lead in discovery of new exploding star

Breaking my Bluesky hiatus to share that our paper on GOTO0650, the new dwarf nova discovered by Kilonova Seekers and followed up with a worldwide team of citizen scientists, was published today in Astronomy and Astrophysics.

Read the full press release here: warwick.ac.uk/news/pressre...

9 months ago 5 3 1 0

Just booked a one-way flight for the first time - moving abroad in 3 weeks is starting to feel very real :)

2 years ago 4 0 0 0

Welp, after 3.25 years of good luck and careful hand hygiene I finally caught covid :(

2 years ago 4 0 2 0

It’s here! warwick.ac.uk/fac/sci/phys...

2 years ago 2 0 0 0
Preview
Ubiquitous Late Radio Emission from Tidal Disruption Events We present radio observations of 23 optically-discovered tidal disruption events (TDEs) on timescales of about 500-3200 days post-discovery. We detect 9 new TDEs that did not have detectable radio...

NEW PAPER: I have discovered that up to half of all black holes that shred a star "burp" material years after the initial event and turn on in radio!!! No one was expecting this, and we don't really understand why this might be! 🤩🔭🧪

arxiv.org/abs/2308.13595

🧵

2 years ago 128 40 4 6

Will be available open-access fairly shortly on the Warwick Astro webpage, for anyone curious to read

2 years ago 1 0 1 0
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A stack of freshly-printed copies of my PhD thesis!

A stack of freshly-printed copies of my PhD thesis!

Very weird to finally be holding them in my hands! Was surprisingly heavy to carry over from the library 😅

2 years ago 6 0 1 0

Clear skies!

2 years ago 2 0 0 0

I climb at the University wall, although have been meaning to check out the Ballroom! Would love to join if you do end up going :)

2 years ago 1 0 1 0
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Good to be back at the climbing gym, although sorely feeling my 3 weeks away and seem to have lost most of my finger strength 😭

2 years ago 2 0 1 0
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Sad to be leaving Finland after a really fun two weeks, but equally even more excited now to move there in just under a month to start my postdoc at University of Turku!

2 years ago 5 0 0 0

Sleepy me tried to unlock my laptop by typing Overleaf as my password just now - academia in a nutshell 🤣

2 years ago 5 0 0 0
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Starting the weekend off right with some sauna and outdoor swimming

2 years ago 8 0 1 0