Thread by @El_Lobo_Rayado

Day 5 and last of #ESOz2020 starts with great Cath Trott @CathAstro @ICRAR @ARC_ASTRO3D giving the invited review talk “Measuring the re-ionisation signal”

Cath Trott @CathAstro @ICRAR @ARC_ASTRO3D provides a nice overview of how we study the low-frequency Universe, the instruments & experiment we use, & the kind of signal we should expect #ESOz2020 (look, @pcoffeebreak @cienciabrujula
et al., a reference to Loeb!)

More cool results shown by Cath Trott @CathAstro @ICRAR @ARC_ASTRO3D during her invited talk at #ESOz2020: studying the Lyman-alpha & 21cm Forests using low-frequency radio observations and galaxy stacking at those frequencies. Outlook slide included. Amazing @mwatelescope !

Next, PhD candidate Piyush Sharda @scienceANU @ARC_ASTRO3D presents the results from his Honour Thesis!! about star-formation in high-redshift starbursts. He first summarises the main observational results & ingredients for star-formation in models (nice slide!) #ESOz2020

Piyush Sharda @scienceANU @ARC_ASTRO3D briefly summarises the 3 main star-formation models & how deriving parameters from observations (always tricky, but even more at high redshift!) #ESOz2020

Nice analysis of 2 high-redshift starburst galaxies by Piyush Sharda @scienceANU @ARC_ASTRO3D, here comparing observations and theory: the star-formation models considering multi-freefall collapse of molecular clouds explain observations #ESOz2020

Now Nathan Adams @NatAdAstra @ESO talks about “Bridging the AGN and LBG luminosity at high redshift”, that he does studying the galaxy luminosity function using ultraviolet UV emission of galaxies at high redshift #ESOz2020

For that Nathan Adams @NatAdAstra @ESO uses the VIDEO survey at @ESO’s VISTA survey telescope. Nice results improving the luminosity function. He provides an overview of the future & summary of the talk #ESOz2020

Very nice talk by Themiya Nanayakkara @ThemiyaN @Swinburne about “Local Universe as a benchmark to stellar populations in the epoch of reionisation” #ESOz2020

However it is difficult to disentangle star-formation properties, metallicity & more in high-redshift galaxies, but we can try local galaxies as famous Antennae, Themiya Nanayakkara @ThemiyaN @Swinburne in #ESOz2020

Themiya Nanayakkara @ThemiyaN @Swinburne & team started the MUSE/VLT @ESO ELMO (Extremely Low Metallicity Objects) survey to study local analogues to high-redshift star-forming galaxies #ESOz2020

Beautiful MUSE/VLT @ESO deep spectra of local, very low-metallicity dwarf galaxies !! Themiya Nanayakkara @ThemiyaN @Swinburne emphasises: don’t use the N2 method for getting metallicity! and explores how to improve parameter space combining UV+optical data. #ESOz2020

Now Andrew Battisti @scienceANU @ICRAR @ARC_ASTRO3D presents “MAGPHYS+photo-z: Constraining the Physical Properties of Galaxies with Unknown Redshifts” #ESOz2020

Andrew Battisti @scienceANU @ICRAR @ARC_ASTRO3D uses the COSMOS data for this work and discusses the impact of a 2175 Å feature in the results. Summary slide included #ESOz2020

After the coffee break Rychard Bouwens presents “Probing the Most Massive ISM reservoirs in the early universe with the REBELS @almaobs large program”, he acknowledges collaborators & students and discusses why this program is important #ESOz2020

The REBELS program @almaobs is a systematic follow-up of the brightest galaxies at redshift > 6.5 visible to @almaobs. The pilot survey already provided some nice detections of [CII] emission (e.g. at z=6.857, Smit+18), also confirming redshifts! #ESOz2020

Rychard Bouwens also presents some nice high-spatial resolution kinematics of a z~7 and quickly shows plenty of plots with preliminary results from the REBELS @almaobs program. Future work and summary slides included #ESOz2020

Thanks Rychard Bouwens for thanking me for tweeting during the #ESOz2020 Conference (I couldn’t get the photo). As I’ve said to many who ask about it, that is my way of paying attention and take notes. All tweets compiled in #Threads & webpages...

That reminds me I think I didn’t include here the link to the webpage compiling all my tweets from #ESOz2020 Day 4 ! Here it is: threadreaderapp.com/thread/1230297…

Now we have another virtual talk. Antonios Katsianis presents “The evolution of the simulated and observed star-formation rates (SFRs) of galaxies in the Past 13 billion years” #ESOz2020

Antonios Katsianis emphasises the “tension” between different groups, observational and theoretical, to explain the SFR-M* relation at high-redshift #ESOz2020

However, Antonios Katsianis explains, when using the EAGLE semi-analytic models combined with GAMA observations they agree: EAGLE simulations are able to obtain realistic SFRs & masses. Conclusions slide included #ESOz2020

Now Anshu Gupta @UNSWScience presents “The mass assembly of galaxies at z>3”. She uses the MOSEL Survey and the IllustrisTNG Simulation for this Research #ESOz2020

Anshu Gupta @UNSWScience discusses the results of her research, paper submitted. Interesting results as finding lower integrated velocity dispersión of massive galaxies at z~3 than at z~2 #ESOz2020

Anshu Gupta @UNSWScience and collaborators also used KMOS/VLT @ESO to study the Lyman scape and outflows in extreme emission galaxies. Summary slide included #ESOz2020

PhD candidate Francesca Rizzo presents “From high-redshift sub-millimetre galaxies to early types in the local universe”. She uses lensed galaxies to get spatial resolution for kinematic analysis of high-z galaxies & @almaobs to get [CII] emission at <100 pc resolution #ESOz2020

Francesca Rizzo discusses the kinematics properties of the @almaobs observed objects and compares with results of local early-type galaxies. Conclusions slide included #ESOz2020

Now Christian Wolf @scienceANU presents “Ultraluminous quasars at high redshift” trying to answer the mystery of the earliest black holes... and for that he uses @SkyMapper data (beautiful first image, credits?) #ESOz2020

Christian Wolf @scienceANU describes @SkyMapper “the small LSST @VRubinObs but with data already available”, reminds that the Data Release 3 is opened to Australian astronomers, and shows a nice image of M83 #ESOz2020

Combining @SkyMapper + @ESAGaia data plus following spectroscopy using @scienceANU 2.3m telescope to find more QSOs, although plenty of contaminants. Follow-up with XSHOOTER/VLT @ESO observations #ESOz2020

My last #ESOz2020 talk (as I have to get the flight back to Sydney today, I’m needed tomorrow morning at home) is given by Guillaume Drouart @ICRAR who presents “The GLEAMing of the first supermassive black holes”

Guillaume Drouart “The GLEAMing of the first supermassive black holes”, some sources confirmed using @almaobs data, they are radio luminous, and conclusions slide #ESOz2020

@threadreaderapp unroll please!