On my way from Sydney to Perth for the #esoz2020... no movies (no individual screen), laptop without battery, no books and a very slow WiFi connection... another hour to go... At least I almost finished my talk and worked a bit more with my Python code...
#ESOz2020 starts with invited speaker Tessa Vernstrom @CSIRO_ATNF who talks about “The MWA (Murchison Widefield Array interferometer and Extragalactic Science” 
In 2017 @mwatelescope entered in Phase II including long baselines (needed for getting spatial resolution using interferometry). The science MWA does is divided in 4 big topics: Epoch of Reionization, Transients, solar-heliosphere-ionosphere, Galactic and extragalactic #ESOz2020
Tessa Vernstrom @CSIRO_ATNF presents some of the extragalactic surveys conducted at @mwatelescope, of course some with funny acronyms: MIDAS, GOLD, POGS #ESOz2020
Just to be clear, @mwatelescope studies the very low radio frequencies (70-300 MHz, the 21 cm HI line, is at 1420.4 MHz, CO emission is at 115271 MHz), that is also interesting for star-forming galaxies, including the Magellanic Clouds. Summary slide by Tessa Vernstrom #ESOz2020
The most important @ESO public surveys coming soon are those that will be conducted with 4MOST (Multi-Object Spectrograph Telescope) at the 4.1m VISTA telescope eso.org/public/unitedk…, including WAVES led at @ICRAR. Conclusion slide included. #ESOz2020
Next in #ESOz2020 is Aidan Hotan @CSIRO_ATNF talking about “ASKAP (Australia SKA Pathfinder radio-interferometer) surveys and plans”. The 36 12m antennas have Phased Array Feeds (“radio camera”) to conduct large surveys, main 2 are the @WALLABYsurvey & the EMU survey
In addition to large surveys, ASKAP @CSIRO_ATNF also conducts some small projects (weeks of observing instead of years). They will soon release the “Rapid ASKAP Continuum Survey”. Large surveys have conducted pilot surveys during the last couple of years #ESOz2020
Aidan Hotan @CSIRO_ATNF presents amazing results from the EMU pilot survey at the ASKAP (all those dots are radio galaxies!!!) and the CSIRO ASKAP Science Data Archive at #ESOz2020
OK, low battery in phone, low phone reception, slow WiFi... Next are going to be telegram tweets... sorry #ESOz2020
Next Francois Rigaut @scienceANU talks about “MAVIS status update”. MAVIS is a new instrument for @ESO VLT for getting images & spectra, led by Australian-European researchers including @AAOMacquarie @MQPhysAstro #ESOz2020
Francois Rigaut @scienceANU provides more info about the new MAVIS instrument: it will go deeper than @HubbleTelescope and it will be sharper than @NASAWebb. Many science cases for it, several spectrograph modes available #ESOz2020
The MAVIS Consortium includes world-leading expertise of both @AAOMacquarie @MQPhysAstro & @scienceANU (@AAOorg ) plus INAF, LAM, and @ESO. Planned first light in 2027! #ESOz2020
After the nice coffee break we resume #ESOz2020 talks with @astrowelshluke presenting 4MOST: the 4m Multi-Object Spectroscopic Telescope at @ESO VISTA at Paranal
There are 10 consortium surveys for 4MOST designed to cover a diverse range of high impact science goal (Galactic & extragalactic), as discussed by @astrowelshluke @ICRAR at #ESOz2020
A bit more info about extragalactic science highlights for 4MOST #ESOz2020
Current status, timeline and summary for the 4MOST talk presented by @astrowelshluke @ICRAR at #ESOz2020: starting in late-2022 it will collect 13 million extragalactic spectra and 15 million stellar spectra over the Southern sky by 2028!!
Next Betsey Adams presents “The Apertif Surveys: The First Six Months”. @apertifWSRT is the “phased-array feed” (radio-camera) for the WSRT radio-interferometer in the Netherlands. Surveys include time-domain & imaging #ESOz2020
That’s important for my research: the WEAVE-Apertif survey combining 21 cm HI @apertifWSRT AND IFS optical data using new WEAVE instrument at WHT @INGLaPalma !! Pity the resolution of HI is different than optical. Also survey data releases soon! #ESOz2020
Betsey Adams emphasises finding galaxy group interactions via 21cm HI @apertifWSRT data, and take-always of her talk #ESOz2020
Next Jonghwan Rhee @ICRAR presents “ASKAP HI deep survey (DINGO)“, that is the deep neutral gas survey conducted at @CSIRO_ATNF ASKAP radio-interferometer #ESOz2020
Jonghwan Rhee presents some early science for the DINGO ASKAP HI deep survey, studying HI gas evolution using spectral stacking #ESOz2020
Jonghwan Rhee “ASKAP HI deep survey (DINGO)“, preliminary results of the cosmic HI density and summary #ESOz2020
Next is amazing @KarenLeeWaddell @CSIRO_ATNF presenting galaxy evolution following the 21cm neutral gas perspective and the eyes of ASKAP through GASKAP, @WALLABYsurvey, DINGO & FLASH surveys. #ESOz2020
Some details of the GASKAP & @WALLABYsurvey surveys at the @CSIRO_ATNF ASKAP shown by @KarenLeeWaddell at the #ESOz2020
More @WALLABYsurvey preliminary science + what we should expect presented by @KarenLeeWaddell @CSIRO_ATNF at #ESOz2020
Also DINGO (stacking spectra to get HI measurements in distant galaxies) and FLASH (absorption survey in HI) surveys for studying the neutral gas of the universe presented by @KarenLeeWaddell @CSIRO_ATNF at #ESOz2020
Next in #ESOz2020 is Ned Taylor @Swinburne talking about “The Taipan Galaxy Survey @TaipanSurvey at the 1.2m UKST at @SidingSpring and prospects for a 4MOST Hemispheric Survey”
“The @TaipanSurvey at the UKST is a great laboratory to study the baryon cycle as a function of mass and environment, complementing many other multiwavelength surveys” Ned Taylor @Swinburne at #ESOz2020
Then Ned Taylor describes the 4HS survey proposed for 4MOST, he very energetically describes in several slides why such a survey is really needed! #ESOz2020
More slides shown by Ned Taylor defending why the 4HS survey should be conducted. I think he really made a point here! #ESOz2020
Next is Erwin de Blok talking about “MeerKAT and the low column density universe: first MHONGOOSE commissioning results” #ESOz2020
Erwin de Blok presents some interesting results obtained at the MeerKAT using MHONGOOSE survey: they resolve galaxy ESO 302-G014 with a resolution of ~400 pc but low resolution shows asymmetric distribution, galaxy falling to cluster? #ESOz2020
Looking for more anomalous feautures using low column HI emission as part of the MHONGOOSE survey at MeerKAT shown by Erwin de Blok at #ESOz2020. Summary slide included!
After the lunch we have the Review Talk by Naomi McClure-Griffiths @naomimcgriff @scienceANU “Think Global, Act Local: Atomic Hydrogen in the Milky Way & Magellanic Clouds” #ESOz2020
What can we learn from observing the Milky Way nuclear wind? Many things we can’t see in other galaxies! We are resolving both atomic and molecular gas clouds @naomimcgriff @scienceANU in #ESOz2020
Next @naomimcgriff @scienceANU uses the Small Magellanic Cloud (SMC) to study outflows in dwarf galaxies. Data using GASKAP pilot observations at ASKAP, detected outflows, some gas should escape! #ESOz2020
Finally @naomimcgriff @scienceANU asks how much “dark” gas is optically thick HI? At least not much in the Magellanic Clouds. Cold HI gas is most correlated with star-forming regions. Last slide summarises her talk #ESOz2020
Absolutely gorgeous final image shown by @naomimcgriff @scienceANU of one ASKAP phase-feed arrays in its antenna with the Magellanic Clouds in a dark night... I don’t know who I have to credit for it, but I love it! #ESOz2020
Now Tom Oosterloo presents “The discovery of a twinkling radio source with @apertifWSRT: extreme scintillation from turbulent plasma in the direct solar neighbourhood” #ESOz2020
“Twinkle twinkle little unknown thing...” (that’s my song) but interestingly the twinkling depends on the moment of the year! Tom Oosterloo at #ESOz2020
Now Katie Jameson @CSIRO_ATNF talks about the “The cold neutral and molecular gas in the Small Magellanic Cloud” #ESOz2020
What is happening in the SMC? Katie Jameson & team found tiny blobs of molecular gas (CO) in the Small Magellanic Cloud, is this why it is difficult to see in in dwarf (low-metallicity) galaxies? Katie Jameson @CSIRO_ATNF at #ESOz2020
The CO emission in the SMC is quite unique, also large-scale filaments found. Then compare pre-ASKAP (ATCA-Parkes) with new GASKAP 21 cm HI data reaching a 6 pc resolution!!! Katie Jameson in #ESOz2020
Now Stephanie Monty @scienceANU talks about “Disentangling the accretion history of the Milky Way using chemodynamics: coupling high resolution spectroscopy with @ESAGaia DR2” #ESOz2020
Stephanie Monty @scienceANU divides the “dynamics” and the “chemical” properties of stars for studying the assembly of the Milky Way. Take home slide also included. #ESOz2020
Now Kathryn Grasha @scienceANU @ARC_ASTRO3D presents “The Most Massive Stars do the Most Damage: Improving Stellar and Photoionized Models in Nearby HII Regions” #ESOz2020
More challenges in stellar track models & solution to them, as shown by Kathryn Grasha @scienceANU @ARC_ASTRO3D during her talk at #ESOz2020
That is what Kathryn Grasha @scienceANU @ARC_ASTRO3D & team are doing: new tracks with updated chemical abundances! Much needed for Galactic & extragalactic HII regions! #ESOz2020
Today’s last session of #ESOz2020. Clare Worley @cambridge_astro gives a review talk about “Unravelling galaxy formation from the stellar populations of the Milky Way”
Clare Worley @cambridge_astro summarises upcoming spectroscopic stellar surveys and questions that arise from all these Big Data, can we understand the building up of the Milky Way? Are models OK? #ESOz2020
Clare Worley @cambridge_astro also discusses the halo streams and structures found in the Milky Way and M31-M33. @ESAGaia data allowed astronomers to discover the merger of a massive dwarf galaxy with the MW ~10 Gyr ago!! But we need kinematics beyond Gaia #ESOz2020
The next talk at #ESOz2020 is given remotely by Ortwin Gerhard “Distribution of dark matter and baryons in the centre of the Milky-Way”... well, actually is a recording! (to be sure all works OK), he is available for questions after it
Now Azadeh Fattahi talks about “Build up of the Milky Way’s stellar halo” #ESOz2020
Azadeh Fattahi discusses the Auriga hydrodynamical simulations. Observations+simulations suggest that a highly radial component dominant in the Galactic inner stellar halo is the result of the merger of a dwarf galaxy ~9 Gyr ago! #ESOz2020
Next Kristine Spekkens talks about “Predicting the Resolved @WALLABYsurvey Velocity Function” #ESOz2020
Kristine Spekkens discusses that @WALLABYsurvey will resolve >10,000 HI disks, that should be carefully analysed with 3D tilted ring models to extract rotational velocities are not many spatial elements, they are testing technique with mock HI cubes #ESOz2020
These are the results using one of the codes, plus summary slide after Kristine Spekkens talk at #ESOz2020
Today last talk at #ESOz2020 is by Helga Dénes talking about exploring galaxy evolution with @apertifWSRT
Helga Dénes emphasises the importance of 21cm HI resolved maps for tracing the influence of environment in galaxy evolution #ESOz2020 here some results from @apertifWSRT data!
More features of galaxy interactions found in @apertifWSRT data!! Also stay tuned for data releases very soon! Nice presentation by Helga Dénes ! #ESOz2020
That was the end of Day 1 for #ESOz2020... Let’s do the magic: @threadreaderapp unroll por favor ;-)
