Aswin Vijayan

Synthesizer: Synthetic Observables For Modern Astronomy Synthesizer is a fast, flexible, modular, and extensible Python package that empowers astronomers to turn theoretical galaxy models into realistic synthetic observations - including spectra, photometr...

We have been working on synthesizer for quite a while now (~3yrs 😅), expect more papers coming out using it. There is already a paper out on arxiv (arxiv.org/abs/2506.15811), submitted to the Journal of Open Source Software. An introduction paper will be out very soon!

documented and easy to use package to create synthetic observations.

GitHub - synthesizer-project/synthesizer: Synthesizer - a code for creating synthetic astrophysical observables Synthesizer - a code for creating synthetic astrophysical observables - synthesizer-project/synthesizer

We also provide a github link (github.com/aswinpvijaya...) where there are a few notebooks that you can run to reproduce all the plots in the paper or if you want to do your own exploration. This uses the open-source python package, synthesizer (synthesizer-project.github.io/synthesizer/), a well

model galaxies and hydrodynamical simulations. We look at the SFR, ionising photon production efficiency and the mass-metallicity relation. The variation in the properties of stellar population and star-dust geometry can make them unreliable. You can read the paper to find out more!

Interpreting nebular emission lines in the high-redshift Universe One of the most remarkable outcomes from JWST has been the exquisite UV-optical spectroscopic data for galaxies in the high-redshift Universe ($z \geq 5$), enabling the use of various nebular emission...

New paper alert!
We have a paper on arxiv (arxiv.org/abs/2507.20190), where we test how reliably one can recover galaxy properties using some of these incredible galaxy emission lines that JWST has been collecting. We approach this by using a combination of synthetic observations from simple toy

Horizon Europe 2028 - 2034: twice bigger, simpler, faster and more impactful Research and innovation news alert: As part of the next long-term EU budget 2028-2034, the Commission is proposing to double the budget of the research and innovation framework programme to €175 billi...

Very promising news on the next seven-year EU budget, with a proposed substantial increase for Horizon Europe including the ERC.

We are analysing the other parts of this proposal in more detail.

@Vonderleyen @EZaharievaEU

research-and-innovation.ec.europa.eu/news/all-res...

British surgeon Nick Maynard, who has just returned from volunteering in Gaza, explains to #GMB viewers how Israel confiscates all baby formula that doctors like him try to take with them.

Why does Israel do this? Because they want to starve Palestinian babies to death.

"it seemed to us like this was almost like a game of target practice. We're going to shoot the head today. Tomorrow it'll be the chest. The next day it'll be the testicles"

British surgeon Nick Maynard on IDF soldiers shooting Palestinian kids.

Police in Canterbury today informed a protestor that the phrase "Israel is committing genocide in Gaza" could be considered a declaration of support for Palestine Action and therefore a terrorism offence.

A wide shot of part of the Euclid exhibition at the Goodwood Festival of Speed. In the foreground are lots of people wandering around the exhibit. On the left is a huge screen displaying a Euclid image. The exhibition is held in a large black tent, which drapes from the top of the image.

Researcher Dr Will Roper is on the left, talking to Astronaut Tim Peake featured on the right. They are in the Euclid exhibition, seen in the background. In particular they are looking at an interactive screen of a Universe simulator called Swift.

Thanks to support from @esa.int and @sussex.ac.uk, #HumansOfEuclid from UK universities are at the Goodwood #FestivalOfSpeed!

Today, Astronaut Tim Peake dropped by to learn about more about the Dark Universe. If you’re visiting #FOS near Chichester this weekend, be like Tim and come say hi!

Man criticises Home Office for keeping visa fee of wife who died before reaching UK Mohamed Jama says the Home Office should refund the £3,105 immigration health surcharge because his wife never made it to the UK

Home Office refuses to refund immigration health surcharge paid for wife who died before entering UK www.theguardian.com/politics/202...

Another great colleague who got her visa too late to travel to #EAS2025 😭

UK Home Office tells parents their children should return to Brazil alone While Ana Luiza Cabral Gouveia and Hugo Barbosa can remain, letter says sons, 11 and eight, must go back to Brazil

Shame on the Home Office for forcing parents to abandon their children! www.theguardian.com/uk-news/2025...

Man defends his use of copyright football streams by insisting he needs them to ‘train his AI model’ A Basingstoke man has today defended his use of copyright-protected football coverage, insisting that without it, his start-up AI business will fail.

NEWS! Man defends his use of copyright football streams by insisting he needs them to 'train his AI model' newsthump.com/2025/06/02/m...

Videos show Israeli air attacks levelling residential buildings in Gaza, reducing them to rubble amid Israel's ongoing war on the besieged enclave.

Academia in 2025: For weeks I’ve been working through botched copy-edits of my monograph, outsourced by the publisher to a company I’d never heard of, until it finally dawned on me the terrible job might be AI. A quick search confirmed the company recently launched new AI software, which now means..

People Who Escaped Authoritarian Governments Share How They Knew It Was Time To Go Know the warning signs.

It's important to know the warning signs.

I believe this means the sun will set over the entirety of the British Empire tonight for the first time in several hundred years. Chagos is the dot below India on this map. Sunset in the Pitcairns (dot in the Pacific) will happen ~40 minutes before sunrise in Akrotiri and Dhekelia (dot on Cyprus).

This statement about the transphobic Supreme Court ruling by the UK's Crab Museum (yes a museum about crabs) is better than 99% of the statements I've seen on the topic

www.crabmuseum.org/visit

🦀🦀🦀🦀🦀🦀🦀🦀

Also methods like sph, which is also used in industrial applications.
en.m.wikipedia.org/wiki/Smoothe...

Tweet from JD Vance: "Today I met with the Holy Father Pope Francis. I am grateful for his invitation to meet, and I pray for his good health."

Could JD Vance please also pray for the good health of Vladimir Putin?

NASA’s Next Major Space Telescope Is Ready to Launch. Trump Wants to Kill It and Other Vital Science Amid harsh cuts, the Trump administration has proposed canceling the nearly ready-to-launch Nancy Grace Roman Space Telescope

About the leaked NASA budget proposal that kills an almost-ready-to-launch flagship mission: "It sets back a program that is clearly the leading program in the world—in a historic fashion. You take that program and shoot it through the head."

www.scientificamerican.com/article/nasa...

Historians: Quibbling Over Exact Definition Of Concentration Camp Sign Of Healthy Society NEW HAVEN, CT—Calling such concern for linguistic precision a clear indicator of a thriving country, a panel of historians from Yale University issued a statement Thursday announcing that quibbling ov...

Historians: Quibbling Over Exact Definition Of Concentration Camp Sign Of Healthy Society

UK Supreme Court Rules That Trans Women Aren’t Women under the Equality Act 2010 The legal definition of a woman in the UK now excludes trans people: This is what it means for Trans+ rights in the country

My analysis of today's UK Supreme Court judgment.

The UK Supreme Court Rules That Trans Women Aren't Women Under the Equality Act 2010

www.wearequeeraf.com/uk-supreme-c...

Trump Assures Wall Street He’ll Go Back To Just Fucking Over Poor People Soon

Trump Assures Wall Street He’ll Go Back To Just Fucking Over Poor People Soon
http://theonion.com/...

Lobby plaque with motto proclaiming the virtues of inclusiveness, equitability, diversity, and engagement.

Blank wall after plaque has been removed, presumably reflecting an underlying change in values.

Until a couple of months ago, this sign hung in the lobby of the Space Telescope Science Institute: "STScI promotes an inclusive, equitable workplace and cultivates a diverse, engaged workforce."

It has now been removed.

I think the only reason I could finish the second book, was probably because I was listening to the audiobook on my bike commute.

Gonna keep saying this: In the 1840s, Southerners insisted that they could kidnap any person they alleged was a slave without any state or federal process. This turned even minimal process into resistance and raised the salience of the issue, which radicalized a bunch of people against slavery.

Captain Haddock looking very frazzled, saying, “What a week, huh?” Tintin leans into the frame and says, “Captain, it’s Wednesday.” Snowy is very excited about the drink he has found.

It is the screenshot of the abstract from arXiv of a paper describing the discovery of an absurdly high-redshift galaxy

Our magnum opus
(that is until the next one 😇)
arxiv.org/abs/2503.24312