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StarXiv: a podcast discussing the latest astronomy papers: Daily Summaries Delivered
by Michelle and Payel
Hello! Welcome to the StarXiv, hosted by Dr Michelle Collins and Dr Payel Das. This is a podcast that delves into the latest astronomy papers & results from the arXiv. Michelle and Payel are astronomers at the University of Surrey. They love research, but struggle to find time to read a lot of papers. They’re hoping this podcast fixes that. The beautiful logo is designed by Izzy Gray, a PhD student currently studying at the University of Surrey.
Latest Episodes
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- 1 weeks ago30 min
Episode 40 - globular clusters, extended disks, high redshift galaxies and aliens!
In this episode, Michelle and Payel discuss results from the searches for extra-terrestrial life, a natural mechanism for producing light element variations in globular clusters, a typical galaxy at z>10 and the origin of Andromeda's extended stellar disk.And take a look at the papers belowGlobular cluster abundance patterns inherited from giant molecular clouds - William McClymont et al.Project Hephaistos -- IV. James Webb Space Telescope Observations of Two Dyson Sphere Candidates - Erik Zackrisson et al.Deep Spectroscopic Follow-Up of Maisie's Galaxy -- A Typical Galaxy in the Early Universe - Rebecca Larson et alThe Merger-Driven Origin of the Vast Extended Stellar Disc Around the Andromeda Galaxy - Tsakonas et al
- Jun 23, 202638 min
Episode 39 – data-driven stellar population studies, multi-scale AGN feedback, and solar flare ribbons
In this episode, Payel and Nicole discuss machine learning methods to to transform composite galaxy spectra and determine key features of galaxy evolution. They also examine new observations of the Centarus cluster with JWST, closing the loop on AGN feedback across multiple radial scales. Finally, they discuss new solar observations that shed new light on the formation of solar flare ribbons. A novel data-driven approach to extract stellar population properties from galaxy spectra using absorption indices – Zahra Sharbaf et al.JWST reveals how black holes are fed: kiloparsec-scale multiphase filaments feed sub-kiloparsec circumnuclear disks - Julie Hlavacek-Larrondo et al.pop-cosmos: Disentangling galaxy properties from observables using data-driven approaches - Benedict Van den Bussche et al.Solar flare ribbons structured by uncombed chromospheric loops - Lakshmi Chitta et al.
- Jun 8, 202635 min
Episode 38 - merging galaxies, exploding stars and the beauty of individual galaxies
In this episode, Michelle and Nicole discuss machine learning methods to classify merging galaxies and different classes of supernova. They also look into whether planetary engulfment can explain unsual chemical signatures in some binary systems, and dive deep into some beautiful MUSE data for a spiral galaxy at redshift 0.09. Check it out below, on Spotify, Apple podcasts, or wherever you get your podcasts!Check out the papers we featured belowA Deep Study of the Spiral Galaxy W2246f - Evelyn J. Johnston et al.Chemical paradox in a binary system: Exploring metal enrichment in HD 81809B - Nuno Moedas et al.Vision-Language Model Ensembles Achieve Human-Expert Accuracy for Galaxy Merger Classification - Marco Chiaberge et al.Photometry is all you need: supernova classification as a mixing problem - Ana Sofía M. Uzsoy & V. Ashley Villar
- May 25, 202632 min
Episode 37 - Lunar craters, primordial black holes & growing galaxies
In this episode, Michelle and Payel talk about the asymmetry in the number of craters across the moon, using microlensing to find primordial black holes, tracing the growth of disk galaxies since z~1, and using machine learning to detect group galaxies merging with massive clusters. Check out the papers we discussed below:Lunar ejecta as the missing piece to resolving lunar cratering asymmetry - Hailiang Li et al.AMPM II. — A Lunar-Mass Primordial Black Hole Microlensing Candidate in the Milky Way Halo - Renee Key et al.Witnessing the rapid growth of disk galaxies over cosmic time using JWST and HST - Samane Raji et al.Identifying group galaxies merging with massive clusters using machine learning - Rhys Jordan et al.
- May 11, 202633 min
Episode 36 - Dead Earths, magnetic fields and Galactic amnesia
In this episode, Michelle and Nicole discuss primordial magnetic fields, Galactic merger memory, the origin of Venus's carbon dioxide rich atmosphere and using Galactic stars to predict extragalactic abundances. Listen below, on Apple podcasts, Spotify, or wherever you get your podcasts.
- Apr 28, 202634 min
Episode 35 - More Milky Way mayhem, Fast Radio Bursts, and very cold disks
In this episode, Nicole and Payel discuss an accurate dating of the Gaia-Enceladus Sausage merger with the Milky Way, a new probe of matter clustering on small scales using Fast Radio Bursts, a new analysis of the retrograde stars in the Milky Way, and a simulation perspective on the very cold disks found at high redshift by ALMA. And check out the papers below:The Last Galactic Firework: Timing the last significant merger with stars, globular clusters and 𝜔 Centauri Chervin Laporte and Matthew OrkneySignatures of Suppressed Matter Clustering revealed by Fast Radio Bursts Kritti Sharma et al.Substructures of the Milky Way's Retrograde Halo: Evidence for Multiple Accretion Events Young Kwang Kin et al.Dynamically cold discs in high-redshift galaxies: comparison between ALMA observations and TNG50 Yi He et al.
- Apr 13, 202628 min
Episode 34 - The cosmic web, the ancient Milky Way, and planets around small stars
In this episode, Nicole and Payel discuss a stellar system located towards the Galactic bulge, the structure of filaments in the cosmic web, the homogeneity of the chemical compositions of exoplanets born in the same disc, and the possibility of water-rich hot super Earths. Check out the papers below: The multi-age stellar populations of Terzan 5 as revealed by JWST Giorga Zullo et al.Universal Dark-matter Density Profiles of Cosmic Filaments Peng Xu et al.A Chemical Mismatch Between Young Stars and Their Inner Disks Diogo Souto et al.Super-Earth masses and stellar abundances from NIRPS reveal tentative evidence for water-rich formation around M dwarfs Drew Weisserman et al.
- Mar 30, 202632 min
Episode 33 - Bananas, blueberries, planet eating stars and the fate of the Milky Way
In this episode, Michelle and Payel delve into the story of UV bright galaxies at high redshifts, hints of population III stars, black hole binaries, planet eating stars, pulsars in Omega Centauri and whether or not the Milky Way and Andromeda will merge. Find all the links to the papers at Starxiv.com.
About StarXiv: a podcast discussing the latest astronomy papers
Hello! Welcome to the StarXiv, hosted by Dr Michelle Collins and Dr Payel Das. This is a podcast that delves into the latest astronomy papers & results from the arXiv. Michelle and Payel are astronomers at the University of Surrey. They love research, but struggle to find time to read a lot of papers. They’re hoping this podcast fixes that. The beautiful logo is designed by Izzy Gray, a PhD student currently studying at the University of Surrey.
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