A transcription of the fourth episode of season two. Nic: Welcome to episode four of season two of the Meridian. Once again we are recording at Lund Observatory in Sweden and we are releasing this episode on March 2nd. Crossing our local Meridian today we are lucky to have Dainis Dravins, a professor emeritus here who studies stellar surfaces. This season we are also bringing you some field report

https://www.astro.lu.se/meridian-s02e04 - 2025-07-09

A transcription of the fifth episode of season two.   Nic: This is the fifth episode of the second season of our podcast Meridian, as so often is the case, we are recording in a shower room at Lund Observatory and it is April 1st today, crossing our local Meridian today we have a visitor from Uppsala University, Michael Way, a physical scientist who works at the Goddard Institute for Space Studies

https://www.astro.lu.se/meridian-s02e05 - 2025-07-09

Källén Seminar for Young Astronomers on April 12, 2022 Titanium cold-trapping, numerous metals and ions, and the first ever unambiguous detection of vanadium oxide revealed on an ultra-hot giant exoplanet   ABSTRACT Not just hot, but ULTRA-hot Jupiters are a new emerging class of exoplanets that just keep on giving in terms of awesome new scientific results. These giant gas planets have very short

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/stefan-pelletier - 2025-07-09

A transcription of the sixth episode of season two.   Rebecca:  This is episode 6 of season 2 or our podcast the Meridian. It's April 8th and when we're recording this, we're located at 55 degrees and 43 minutes north of the equator and 13 degrees and 12 minutes east of the Prime Meridian, so in Lund.    Crossing our local Meridian today. We have a distinguished guest who actually shared a desk wi

https://www.astro.lu.se/meridian-s02e06 - 2025-07-09

Källén Seminar for Young Astronomers on April 26, 2022 Dynamics and history of the Milky Way disc with Gaia ABSTRACT Thanks to the large amount of data delivered by the Gaia satellite and their excellent precision, in the last three years we have experienced a vertiginous progress in the studies of our Galaxy. I will talk about the discovery of unexpected structures in the Milky Way phase-space su

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/teresa-antoja - 2025-07-09

A transcription of the seventh and last episode of season two. Nic: Welcome to the last episode of season two of the Meridian. It is April 15th and we are, once again, coming to you from Lund Observatory, in Sweden. Crossing our local meridian today we have a guest from the department of geology : PhD student Chiara Paleari, who has been studying ice cores and has discovered evidence of an ancient

https://www.astro.lu.se/meridian-s02e07 - 2025-07-09

Källén Seminar for Young Astronomers on May 10, 2022 The formation of diverse stellar halos around Milky Way galaxies ABSTRACT The diffuse stellar halo surrounding galaxies provides a unique window into their formation, preserving signatures of past merger events several billion years after they occur. Recent advances in low-surface-brightness imaging have revealed an extensive diversity in extrag

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/martin-rey - 2025-07-09

Källén Seminar for Young Astronomers on May 24, 2022 Reconstructing the history of the Milky Way in the era of large spectroscopic surveys ABSTRACT At present, our understanding of the formation history of the MW is limited due to the complexity of observing the imprints of accretion events and of reproducing them in numerical simulations. Moreover, though being the only galaxy, in which the Galac

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/guillaume-thomas - 2025-07-09

Elspeth Lee - February 8th, 2022 Centre for Space and Habitability, University of Bern, Switzerland   Nikolai Piskunov - February 22nd, 2022 Department of Physics and Astronomy, Uppsala University, Sweden   Geneviève Parmentier - March 1st, 2022 Astronomisches Rechen-Institute, Zentrum für Astronomie, University of Heidelberg, Germany   Else Starkenburg - March 8th, 2022 Faculty of Science and Eng

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/speakers-vt-2022 - 2025-07-09

Källén Seminar for Young Astronomers on May 31, 2022 Chemical diversity of sub-Neptune planets   ABSTRACT The atmospheres of sub-Neptunes are expected to exhibit considerable chemical diversity, beyond what is anticipated for gas-giant exoplanets. In my talk, we explore self-consistent atmosphere-interior models of sub-Neptunes to explore this chemical diversity and apply this knowledge to the ava

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/andrea-guzman-mesa - 2025-07-09

Källén Seminar for Young Astronomers on June 7, 2022 Diffuse interstellar bands   ABSTRACT Diffuse interstellar bands (DIBs) are interstellar absorption features that widely exist in the optical and near-infrared wavelength range, for which the origin might be gaseous molecules. However the origin go the DIB carrier is still unknown leading to the longest mystery in stellar spectroscopy. DIBs play

https://www.astro.lu.se/meetings/kallen-seminars-young-astronomers/previous-speakers/mathias-schultheis - 2025-07-09

The disturbed outer Milky Way disc In our paper, "The Disturbed Outer Milky Way Disc", myself and my collaborators looked at the strange bumps, clumps and wriggles in the velocity distribution the Milky Way disc, and compared them to some simulations of a recent disc crossing by a perturbing satellite. This movie gives a brief explanation of the main results.   In connection with this paper we sho

https://www.astro.lu.se/~paul/MyResearch - 2025-07-09

Källén Seminar for Young Astronomers on June 14, 2022 On the causal origin of properties of dark matter halos and galaxies   ABSTRACT Large-cosmological simulations, such as Illustris-TNG or Horizon-AGN, allows to draw relations between the formation history of galaxies and their host haloes (number of mergers, formation time) and their properties (galaxy morphology, halo concentration). These rel

https://www.astro.lu.se/corentin-cadiou - 2025-07-09

As discussed at our meeting this morning SkySkan is coming to Skåne to do a service visit in Lund and would like to do a site visit in Malmö before/during/after being in Lund. SkySkan: Please indicate which days you would be able to come to Sweden and submit and feel free to include any comments you may have Malmö Museums: Please indicate which days would be suitable to receive Sky Skan (Glenn and

https://www.astro.lu.se/form/sky-skan-visit - 2025-07-09

Källén Seminar for Young Astronomers on September 6, 2022 Rebounding Cores to Build Star Cluster Multiple Populations   ABSTRACT Multiple stellar populations in star clusters is a widespread phenomenon. They are observed to come in (at least) two flavours: either as multiple star formation episodes observed in young star clusters, or as multiple chemical abundance patterns observed in most old glo

https://www.astro.lu.se/genevieve-parmentier-1 - 2025-07-09

Källén Seminar for Young Astronomers on September 20, 2022 Massive stars, their formation and their multiplicity   ABSTRACT Massive stars are very influential objects, affecting both their local and galactic environments through their creation of the heavy elements and their immense feedback. Furthermore, the lives of massive stars are further complicated by the fact that most of them exist in at

https://www.astro.lu.se/abigail-frost - 2025-07-09

Astronomy research and education has been a part of the Department of Astronomy and Theoretical Physics (ATP) since its formation back in 2010.  Back then the intention was that ATP would be a temporary organizational form, and that it would merge with the Department of Physics within three years.  The planned merger never happened and over a decade later, Lund University still had its physics sub

https://www.astro.lu.se/news/information-about-2022-reorganization - 2025-07-09

Källén Seminar for Young Astronomers on October 25, 2022 Stellar solutions for the two cosmological Li problems   ABSTRACT In this talk I will give an overview of the history and status quo of lithium abundance determination in un-evolved stars from solar to the lowest metallicities, and their connection to Big Bang nucleosynthesis. 7Li spectroscopy now encompasses samples of hundreds of thousands

https://www.astro.lu.se/karin-lind - 2025-07-09

A collection of useful resources, links and information for Lund Observatory employees. Physics department info/resourcesAs of 01/01/2023 the Division of Astrophysics is a part of the Physics department.Staff pages at the Department of physics (in English)Physics and Astronomy Library (in English) Resources for LU employees Links to useful tools such as Canvas, Primula, Lucat, Lubas, Lupin, LUCRIS

https://www.astro.lu.se/Library/employees - 2025-07-09

This page describes the course content of the Master programme in Astrophysics. The Department of Physics offers a Master programme in Astrophysics for students who already have a Bachelor's degree or equivalent in physics or astronomy. The Master programme is equivalent to two years of full-time work (120 ECTS), out of which one year's work (60 ECTS) consists of courses and the other year's (60 E

https://www.astro.lu.se/Education/master_programme - 2025-07-09