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I'm joining the Xodus. I can't bear what the owner of this website stands for. See you over on @colourfulcosmos.bsky.social .
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Dr Natasha Hurley-Walker
1.7K posts
Dr Natasha Hurley-Walker
@ColourfulCosmos
Find me on @colourfulcosmos.bsky.social
Perth, Western Australia Katılım Haziran 2018
759 Takip Edilen2.2K Takipçiler
A map of the Faraday rotation measure -- which encodes the magnetic field strength and topology affecting passing radiation -- based on cosmological simulations reproduces galactic and local structure on the scale of individual clouds. Reissl et al.: nature.com/articles/s4155…
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Dr Natasha Hurley-Walker retweetledi
Astronomers have detected a long-running source of slow, repeating radio pulses that can’t be explained by current theories – but it’s probably not aliens.
@ColourfulCosmos from @CurtinUni has all the details 👇
#Echobox=1691738185" target="_blank" rel="nofollow noopener">theconversation.com/a-mysterious-i…
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Dr Natasha Hurley-Walker retweetledi
We're hearing a lot of buzz and excitement for @ColourfulCosmos' talk at #APRIM2023 on long transients -- her plenary session is 9am local time today so don't miss it! aprim2023.org/program/progra… #atnf
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Dr Natasha Hurley-Walker retweetledi
Astronomers have detected a long-running source of slow, repeating radio pulses that can’t be explained by current theories – but it’s probably not aliens.
@ColourfulCosmos from @CurtinUni has all the details 👇
#Echobox=1691260048" target="_blank" rel="nofollow noopener">theconversation.com/a-mysterious-i…
English
Dr Natasha Hurley-Walker retweetledi
Astronomers have detected a long-running source of slow, repeating radio pulses that can’t be explained by current theories – but it’s probably not aliens.
@ColourfulCosmos from @CurtinUni has all the details 👇
#Echobox=1690818982" target="_blank" rel="nofollow noopener">theconversation.com/a-mysterious-i…
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And I'm advertising for PhD positions, too!
(Aus/NZ students only I'm afraid!)
ICRAR@ICRAR
Hey - if you're an undergrad student and want to work with @ColourfulCosmos on some of those radio transients we've been talking about, then we've got the summer project for you: icrar.org/study-with-icr…
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Dr Natasha Hurley-Walker retweetledi
A long-period radio transient active for three decades, by Natasha Hurley-Walker @ColourfulCosmos and co-authors: nature.com/articles/s4158…
Check out the News & Views by Victoria M. Kaspi highlighting the remarkable foresight of scientists in bygone years: nature.com/articles/d4158…
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Dr Natasha Hurley-Walker retweetledi
A Repeating Radio Burst Astronomers Can’t Explain Isn’t Going Away
iflscience.com/a-repeating-ra…
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Dr Natasha Hurley-Walker retweetledi
In research published today in @nature, ICRAR astronomers using the @mwatelescope and led by @ColourfulCosmos discover what may be a 'long-period #magnetar' - a new kind of slowly spinning star whose radio emissions "shouldn’t be possible". icrar.org/magnetar/
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Dr Natasha Hurley-Walker retweetledi
Astronomers from @ICRAR using the @mwatelescope and three @CSIRO_ATNF telescopes have discovered a new type of stellar object that upsets our understanding of neutron stars. 🌟
Here's why we're excited: csiro.au/en/news/All/Ne…
📷 | Pete Wheeler
#Magnetar
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Dr Natasha Hurley-Walker retweetledi
A team of astronomers, lead by @ColourfulCosmos, used the @mwatelescope to discover a long-period radio transient that has been active for almost three decades. The object was confirmed in archival data from the #VLA and the #GMRT, with detections going as far back as 1988!
ICRAR@ICRAR
Once found by the team at@CurtinUni, the object was confirmed by observations from @CSIRO_ATNF, @SKA_Africa, @ESA_XMM & @IAC_Astrofisica – and found in archives at @TheNRAO and @NCRA_Outreach as far back as 1988. nature.com/articles/s4158…
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Read on to hear my theory on the "aliens of the gaps" 🖖
The Conversation - Australia + New Zealand@ConversationEDU
Astronomers have detected a long-running source of slow, repeating radio pulses that can’t be explained by current theories – but it’s probably not aliens. @ColourfulCosmos from @CurtinUni has all the details 👇 #Echobox=1689810626-1" target="_blank" rel="nofollow noopener">theconversation.com/a-mysterious-i…
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You asked me whether we'd found any other weird slowly-repeating radio sources and all I could say was: "watch this space". Until today!
We've found a new object - and this one breaks all the rules!
ICRAR@ICRAR
In research published today in @nature, ICRAR astronomers using the @mwatelescope and led by @ColourfulCosmos discover what may be a 'long-period #magnetar' - a new kind of slowly spinning star whose radio emissions "shouldn’t be possible". icrar.org/magnetar/
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@CFrootloops @HvrAlex @mwatelescope @Nature @ICRAR @CurtinUni And after a rigorous analysis we found it is easier to explain it as a natural object, or at least, adding aliens to the explanation doesn't actually do anything useful. Like seeing that the sun is shining and saying WHAT IF IT'S ALIENS rather than figuring out nuclear fusion.
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@CFrootloops @HvrAlex @mwatelescope @Nature @ICRAR @CurtinUni So something that varies quickly and is bright... Well, I couldn't think of anything, except maybe something really boring like an airplane or a satellite! But I kept looking through the data. Each two minute observation was taken across a different block of frequency channels...
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Using the @mwatelescope, we've detected a surprising radio transient that repeats every 18 minutes! Read about it in @Nature: rdcu.be/cFLzW
@ICRAR @CurtinUni
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@CFrootloops @HvrAlex @mwatelescope @Nature @ICRAR @CurtinUni So that little moment there was where I briefly considered an ETI explanation. But! After more checking, I found it at different frequencies, and I also found there was no information in any of the data - aside from how slowly it repeats, it looked just like a radio magnetar...
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@CFrootloops @HvrAlex @mwatelescope @Nature @ICRAR @CurtinUni And when I found another observation where the source was on again, it was at the same frequency as the first observation. It was also 18 minutes later (weird, nothing we know does this) and fixed to the astronomical sky, rather than moving like an airplane or satellite.
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