Qiu, Yu

Astronomer, NJU - GaTech - KIAA Fellow, galaxies, clusters, AGN feedback, and things black hole-related.

[Qiu, Yu @astro_Qiu]

Ecstatic to see our work on filaments featured on the cover.
:D

[Nature Astronomy @NatureAstronomy]

Our September issue is full of our usual content too, with the dramatic cover image coming from the simulations of Qiu et al.: https://t.co/e3NobBbfPh

[Qiu, Yu @astro_Qiu]

Registration & abstract submission now open for the #GalaxyFormationinHangzhou conference. Join us @ Xixi National Wetland Park in October and discuss the observations and physics of AGN feedback!

[Qiu, Yu @astro_Qiu]

New paper on supersonic turbulence in galaxy clusters https://t.co/EuoWumJIPT

[Qiu, Yu @astro_Qiu]

New paper on the mass-loading of AGN-driven outflows https://t.co/GAXXNCP3By

[Qiu, Yu @astro_Qiu]

While Day 3 talks are on the way, check out the mid-conference polls from a group of international researchers working on galaxy clusters.
#Astro2020 #KooGiG21
If you remove the bias, it's quite interesting.

[Qiu, Yu @astro_Qiu]

#KooGiG21
Join us and share your science at the 1st KIAA Forum on Gas in Galaxies for Early Career Scientists. Postdocs and graduate students are encouraged to register!

Forum dates: 1-5 Nov 2021
Submit your abstract by 30 Sept 2021
Link: https://t.co/K9o4FAVv9i

@astromeetings

[Qiu, Yu @astro_Qiu]

Day 2 oral sessions are now up at https://t.co/GKQMRxN6i2 including invited talks from Luca Cortese @astroquokka and @StephTonnesen .

[Qiu, Yu @astro_Qiu]

@JJMayo07 I can neither confirm nor deny that. 😁

[Qiu, Yu @astro_Qiu]

A couple of things I've learned helping organize a conference:

• 1/3 of the participants register hours before the deadline.

• Occasionally people register their ARAA paper for a 10-min contributed talk and you immediately feel ashamed for not inviting them...

[Qiu, Yu @astro_Qiu]

@GregHerczeg I'm very happy that one can add CJK characters in ApJ. The degeneracy of the pinyin can be very confusing.

Incidentally we have another Yu Qiu in the institute (different characters). I'm contemplating writing a Qiu & Qiu with him just to confuse everyone.

[Qiu, Yu @astro_Qiu]

Based on this, we estimate that the AGN outburst responsible for the formation of these two features drove bipolar outflows ~10Myr ago with >2000 km/s speeds and total kinetic AGN energy >8e57 erg.

[Qiu, Yu @astro_Qiu]

Have you wondered why the horseshoe filament and the blue loop of newly formed stars locate on opposite sides of the central supermassive black hole in the Perseus Cluster? We address this and constrain AGN energetics in a new ApJ Letter: https://t.co/lQegeomTWk

[Qiu, Yu @astro_Qiu]

Using simulations, we examine the evolution of radiatively cooling outflows with short ( < 10 Myr) cooling time. The cold gas that fragments in the outflows may take both longitudinal and transverse forms, depending on the initial temperature and velocity of the outflow.

[Qiu, Yu @astro_Qiu]

@dr_guangtou At one point I was tempted to call it an *Online-forum* for the proper initial.

Then again the acronym shouldn't preclude future in-person possibilities. :-)

[Qiu, Yu @astro_Qiu]

Update: we have finalized the speakers for review and invited talks.

11 confirmed out of 11 invited. What a fantastic panel!

See you in November! Early registration now open at https://t.co/K9o4FAVv9i

[Qiu, Yu @astro_Qiu]

We are organizing the 1st KIAA Forum on Gas in Galaxies for Early Career Scientists (KooGiG-Junior) on 1-5 Nov 2021.

See more details and register here: https://t.co/4xjwPJ3uv7

[Qiu, Yu @astro_Qiu]

I was reminded by my collaborators to change to "the most massive *collapsed* structures".

[Qiu, Yu @astro_Qiu]

@GregHerczeg @dr_guangtou I remember reading about HMXT and thinking how it was the first in-space telescope from China. Guess we really only care about the photons/waves we work with.

[Qiu, Yu @astro_Qiu]

Due to some newly launched cryptocurrency that's mined on hard drive, the ones that I frequent to store my terabytes of simulation data has surged 3x in price...

Yeah I'm mildly annoyed.

[Qiu, Yu @astro_Qiu]

Goes on arXiv to submit a preprint;
♪～(´ε｀ )
Sees new listings start at 3am in my time zone;
(ಠ︵ಠ)
Clicks submit right away.
...
Please find my new work at the end of tomorrow's listings. Thanks and kind regards.