[{"id":8095,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/b7-b8-c4-exploring-the-fundamental-molecular-ion-heh-oskar-asvany-urs-graf-weslley-silva\/","name":"b7-b8-c4-exploring-the-fundamental-molecular-ion-heh-oskar-asvany-urs-graf-weslley-silva","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/graphical-abstract_2.png","alt":"Spectrum HeH+"},"title":"B7\/B8\/C4: Exploring the fundamental molecular ion HeH+ (Oskar Asvany, Urs Graf, Weslley Silva)","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Mar 1, 2026","dateGMT":"2026-03-01 05:02:00","modifiedDate":"2026-02-23 10:10:34","modifiedDateGMT":"2026-02-23 09:10:34","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":0,"sec":42},"status":"publish","excerpt":""},{"id":8088,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/join-us-on-february-26-for-a-special-astronomy-on-tap-alongside-with-the-astroinformatics-conference\/","name":"join-us-on-february-26-for-a-special-astronomy-on-tap-alongside-with-the-astroinformatics-conference","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/2026_02_Cologne_aot-poster.png","alt":"AOT Poster February 2026"},"title":"Join us on February 26 for a special Astronomy on Tap alongside with the Astroinformatics conference!","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Feb 19, 2026","dateGMT":"2026-02-19 11:31:42","modifiedDate":"2026-02-19 12:33:51","modifiedDateGMT":"2026-02-19 11:33:51","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":1,"sec":4},"status":"publish","excerpt":""},{"id":8077,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/8077-2\/","name":"8077-2","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/1770732175343.jpeg","alt":"DLR Visit Participants 2026"},"title":"January 2026: Another visit to the DLR","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Feb 15, 2026","dateGMT":"2026-02-15 14:08:10","modifiedDate":"2026-02-15 15:09:29","modifiedDateGMT":"2026-02-15 14:09:29","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":0,"sec":12},"status":"publish","excerpt":""},{"id":7935,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/7935-2\/","name":"7935-2","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/1920-1080-max.png","alt":"Clusters of young galaxies in the early Universe that later grow into large clusters are called protoclusters. This artist\u2019s impression of the protocluster SPT2349-56 shows interacting galaxies of different shapes and sizes, and gas (orange) that is torn apart and heated by tidal forces. Due to its great distance from Earth, we see SPT2349-56 as it looked only 1.4 billion years after the Big Bang, when the Universe was 10% of its current age.] [Image Credit: N.Sulzenauer, MPIfR]"},"title":"How giant galaxies could form just 1.4 billion years after the Big Bang","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Feb 10, 2026","dateGMT":"2026-02-10 09:30:00","modifiedDate":"2026-02-10 15:25:33","modifiedDateGMT":"2026-02-10 14:25:33","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/articles\/\" rel=\"category tag\">Articles<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/articles\/\" rel=\"category tag\">Articles<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":5,"sec":39},"status":"publish","excerpt":"The existence of massive, elliptical galaxies in the early Universe has puzzled astronomers for two decades. An international team led by Nikolaus Sulzenauer and Axel Wei\u00df from the Max Planck Institute for Radio Astronomy (MPIfR) used data from the Atacama Large Millimeter\/submillimeter Array (ALMA) to shed light on this open question of galaxy formation. They studied one of the most spectacular galaxy aggregations, expected to be the birthplace of an elliptical galaxy, in great detail. The team discovered enormous, shock-heated tidal debris around a group of 40 galaxies rapidly falling toward a common center. Although fleeting on astrophysical time scales, extreme events like this might represent a hallmark phase for massive galaxy and galaxy cluster assembly in the early Universe. The results are published in the current issue of The Astrophysical Journal."},{"id":7890,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/c3-c6-line-intensity-mapping-lim-simulations-using-empirical-galaxy-catalogue-data-for-observations-from-the-fred-young-submm-telescope-jonathan-clarke\/","name":"c3-c6-line-intensity-mapping-lim-simulations-using-empirical-galaxy-catalogue-data-for-observations-from-the-fred-young-submm-telescope-jonathan-clarke","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/Appendix_COSMOS2025Comp_Compressed-scaled.png","alt":"line intensity mapping (LIM) simulations using empirical galaxy catalogue data for observations from the Fred Young Submm Telescope"},"title":"C3\/C6: Line intensity mapping (LIM) simulations using empirical galaxy catalogue data for observations from the Fred Young Submm Telescope (Jonathan Clarke)","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Feb 1, 2026","dateGMT":"2026-02-01 08:24:35","modifiedDate":"2026-02-10 12:40:04","modifiedDateGMT":"2026-02-10 11:40:04","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":1,"sec":30},"status":"publish","excerpt":"In our upcoming paper, we further develop techniques to make realistic line intensity mapping (LIM) simulations using empirical galaxy catalogue data for observations from the Fred Young Submm Telescope (FYST). LIM provides aggregate signal from a wide beam measured over an expansive sky map area, capturing information from dim galaxies which we cannot otherwise resolve at high redshift (the epoch of reionisation, EoR, 6 < z < 20, ~13 billion years ago). Our simulations must therefore accurately incorporate the primary target line emission, the star-formation tracer [CII] 158\u00b5m at the end of the epoch of reionisation (3.5 < z[CII] < 8.2 for FYST\u2019s 210-420GHz range), as well as the foreground CO and [CI] contaminant signal (0 < z < 6). Correspondingly, it is imperative to ensure that the catalogues forming our mock tomographic maps have appropriate completeness across the entire redshift range."},{"id":7353,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/the-crc1601-supports-the-kolner-junioruni\/","name":"the-crc1601-supports-the-kolner-junioruni","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2025\/11\/b3fb93a1-bc56-4579-956a-af2d90d3d947-e1764068259868.jpg","alt":"Lichtspektrum beim Spektrometerbau"},"title":"Astrospektroskopie im Alltag:\u00a0Wie Licht und das Universum unser t\u00e4gliches Leben pr\u00e4gt\u00a0(Klassen 7-10) - CRC1601@K\u00f6lner JuniorUni","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Jan 23, 2026","dateGMT":"2026-01-23 09:47:08","modifiedDate":"2026-02-10 12:40:20","modifiedDateGMT":"2026-02-10 11:40:20","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/events\/\" rel=\"category tag\">events<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":0,"sec":43},"status":"publish","excerpt":"Das meiste Licht erscheint uns wei\u00df, ist aber tats\u00e4chlich eine Mischung vieler verschiedener Farben. In unserem Workshop wirst du ein Handspektrometer bauen, mit dem du diese Spektrallinien sichtbar machen kannst. So wirst du selbst entdecken, wie unterschiedlich das Licht aus verschiedenen Quellen zusammengesetzt ist \u2013 von der Stra\u00dfenlampe \u00fcber dein Smartphone-Display bis hin zum Licht der Sonne. Bei uns im K\u00f6ln-Bonner Sonderforschungsbereich\u00a0Kosmische Entwicklung der Lebensr\u00e4ume massereicher Sterne\u00a0werden\u00a0Spektrallinien verwendet, die uns verraten, welche Elemente und Molek\u00fcle das Licht aussenden, um die Umgebungen von Sternen zu untersuchen. Diese beeinflussen ma\u00dfgeblich die Entwicklung von Galaxien\u00a0und sind deshalb der Schl\u00fcssel zum Verst\u00e4ndnis der Urspr\u00fcnge unserer Galaxie.\u00a0Mach mit und entdecke, wie Licht nicht nur unser t\u00e4gliches Leben pr\u00e4gt, sondern auch dabei hilft, das Universum\u00a0zu entschl\u00fcsseln!"}]

Massive stars, due to their short lifetime and high energy output, drive the evolution of galaxies across cosmic time. Hence, they substantially contribute to shaping the present-day Universe. The Collaborative Research Centre (CRC) will unravel the “habitats of massive stars across cosmic time”. “Habitats” are the gaseous environments within which massive stars are born and which they interact with via their feedback. Over the anticipated 12-year lifetime of this new CRC initiative, we aim to connect the physical processes that govern the habitats of massive stars across the full range of environments hosting massive stars – from sub-parsec to mega-parsec scales and from the Milky Way to the high-redshift Universe, where massive stars leave their cosmological fingerprint by driving cosmic reionisation.
Key Profile Area
“Dynamics of the Universe”
Our universe is full of fascinating, mysterious and often surprising phenomena. Understanding and explaining this in physical terms is the task of the new key profile area Dynamics of the Universe.
The Dynamics of the Universe key profile area establishes an excellent environment for training, early contact with current research, and exchange in international co-operations and competitions. In addition, the interdisciplinary collaboration between the fields of physics, computer science and applied mathematics will be strengthened in the long term. This is particularly important given the need to meet unprecedented challenges arising from the large amounts of observational data being generated by way of innovative ideas and algorithms, and to enable and efficiently advance complex simulations using new hardware technologies.
Science Highlight
[{"id":8095,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/b7-b8-c4-exploring-the-fundamental-molecular-ion-heh-oskar-asvany-urs-graf-weslley-silva\/","name":"b7-b8-c4-exploring-the-fundamental-molecular-ion-heh-oskar-asvany-urs-graf-weslley-silva","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/02\/graphical-abstract_2.png","alt":"Spectrum HeH+"},"title":"B7\/B8\/C4: Exploring the fundamental molecular ion HeH+ (Oskar Asvany, Urs Graf, Weslley Silva)","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Mar 1, 2026","dateGMT":"2026-03-01 05:02:00","modifiedDate":"2026-02-23 10:10:34","modifiedDateGMT":"2026-02-23 09:10:34","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science-highlight\/\" rel=\"category tag\">Science Highlight<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":0,"sec":42},"status":"publish","content":"HeH+ is a very simple molecule, consisting only of an alpha-particle (the He nucleus), a proton (the H nucleus), and two electrons. In addition, it is thought to be the very first diatomic molecule formed when the early universe cooled down, and it has even been detected in our galaxy.Therefore, we investigated the fundamental rotational transition of HHe+, which is at a high frequency of 2.010 THz. This is quite a challenge, as such an investigation requires a high-resolution source at 2 THz, and is best done in a low temperature ion trapping machine. Using different spectroscopic techniques, we determined the transition frequency value to 2010.183312(8) GHz, which is 10 times more accurate than a former measurement. This successful investigation was made possible by a collaboration of many scientists from SFB1601, including astronomers, instrumentation specialists and laboratory spectroscopists.\n\n\n\npaper: \u00a0\u00a0\u00a0https:\/\/doi.org\/10.1039\/D5CP04689K"}]
We value our Planet:


1st funding period: 10/2023 – 06/2027













