SFB 1601

		[{"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!"},{"id":7771,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/astronomy-on-tap-cologne-on-january-29-2026\/","name":"astronomy-on-tap-cologne-on-january-29-2026","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2026\/01\/2025_01_Koln-aot-horizontal.jpg","alt":"AoT Poster Januar 2026"},"title":"Astronomy on Tap Cologne on January 29, 2026","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Jan 20, 2026","dateGMT":"2026-01-20 09:38:24","modifiedDate":"2026-02-10 12:41:01","modifiedDateGMT":"2026-02-10 11:41:01","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":19},"status":"publish","excerpt":"Every month at 19:00 in Theatercafe Filmdose (Z\u00fclpicher Str. 39, 50674 K\u00f6ln), Astronomy on Tap K\u00f6ln brings you fun and enlightening talks in German and English! Join us to find what Astrophysicists are up to in solving the puzzles of the cosmos."},{"id":7694,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/tracing-the-big-bang\/","name":"tracing-the-big-bang","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2023\/06\/14_ccat-site-telescope_1-13-20.jpg","alt":"FYST telescope site rendering"},"title":"Tracing the Big Bang","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Jan 9, 2026","dateGMT":"2026-01-09 13:08:41","modifiedDate":"2026-02-10 12:41:12","modifiedDateGMT":"2026-02-10 11:41:12","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":8,"sec":9},"status":"publish","excerpt":"With the University of Cologne involved, a powerful radio telescope is rising in Chile\u2019s Atacama Desert to probe the origins of the universe\n\nOne of the world\u2019s most powerful radio telescopes is being built in the Chilean Atacama Desert with the participation of the University of Cologne. Once assembled, it will be able to look back to the origins of our universe. Its construction in Germany, its assembly at an altitude of 5,600 metres, and the expected scientific results \u2013 a journey to the limits of what is possible."},{"id":5651,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/new-program-of-the-public-observatory-cologne\/","name":"new-program-of-the-public-observatory-cologne","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2023\/09\/qr_vswk-logo2022-vertikal-copy.jpg","alt":"Logo Volkssternwarte"},"title":"New Program of the Public Observatory Cologne","postMeta":[],"author":{"name":"admin","link":"https:\/\/sfb1601.astro.uni-koeln.de\/author\/admin\/"},"date":"Jan 2, 2026","dateGMT":"2026-01-02 12:35:04","modifiedDate":"2026-02-10 12:41:28","modifiedDateGMT":"2026-02-10 11:41:28","commentCount":"0","commentStatus":"closed","categories":{"coma":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a>, <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/uncategorized\/\" rel=\"category tag\">Uncategorized<\/a>","space":"<a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/public-outreach\/\" rel=\"category tag\">Public Outreach<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/science\/\" rel=\"category tag\">Science<\/a> <a href=\"https:\/\/sfb1601.astro.uni-koeln.de\/category\/uncategorized\/\" rel=\"category tag\">Uncategorized<\/a>"},"taxonomies":{"post_tag":""},"readTime":{"min":0,"sec":33},"status":"publish","excerpt":"The Public Observatory Cologne is a private institution which is run by the members of the \u201cVereinigung der Sternfreunde K\u00f6ln e.V.\u201d on a voluntary basis. This association of interested amateurs and amateur astronomers was founded in 1922 with the aim of disseminating basic astronomical knowledge to the public and promoting the training and further education of active amateur astronomers within the scope of the available possibilities.With the 60cm refractor \u201cCologne Large Telescope\u201d (CLT) installed in 2012, the Volkssternwarte K\u00f6ln operates the largest freely accessible telescope in North Rhine-Westphalia"}]