[{"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":"#"},"date":"Feb 1, 2026","dateGMT":"2026-02-01 08:24:35","modifiedDate":"2026-02-02 09:59:01","modifiedDateGMT":"2026-02-02 08:59:01","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","content":"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)."},{"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":"#"},"date":"Jan 23, 2026","dateGMT":"2026-01-23 09:47:08","modifiedDate":"2026-01-23 10:47:09","modifiedDateGMT":"2026-01-23 09:47:09","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","content":"Mo., 2.2.2026, 17:00-19:30 Uhr Seminarraum S231, Geb\u00e4ude 315, COPT-Geb\u00e4ude Das meiste Licht erscheint uns wei\u00df, ist aber tats\u00e4chlich eine Mischung vieler verschiedener Farben. In unserem Workshop wirst du ein Handspektrometer"},{"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":"#"},"date":"Jan 20, 2026","dateGMT":"2026-01-20 09:38:24","modifiedDate":"2026-01-20 10:41:30","modifiedDateGMT":"2026-01-20 09:41:30","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","content":"First things first, Happy New year from all of us on the Astronomy on Tap team. We wish you a productive, healthy and joyful 2026! Join us next week at"},{"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":"#"},"date":"Jan 9, 2026","dateGMT":"2026-01-09 13:08:41","modifiedDate":"2026-01-20 10:44:35","modifiedDateGMT":"2026-01-20 09:44:35","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","content":"With the University of Cologne involved, a powerful radio telescope is rising in Chile\u2019s Atacama Desert to probe the origins of the universe One of the world\u2019s most powerful radio"},{"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":"#"},"date":"Jan 2, 2026","dateGMT":"2026-01-02 12:35:04","modifiedDate":"2026-01-02 14:45:53","modifiedDateGMT":"2026-01-02 13:45:53","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","content":"The winter program of the\u00a0Public Observatory Cologne\u00a0is online. Please have a look at their website or here:\u00a0https:\/\/sfb1601.astro.uni-koeln.de\/volkssternwarte\/ The Public Observatory Cologne is a private institution which is run by the"},{"id":7464,"link":"https:\/\/sfb1601.astro.uni-koeln.de\/b2-nicola-schneider-simon-dannhauer\/","name":"b2-nicola-schneider-simon-dannhauer","thumbnail":{"url":"https:\/\/sfb1601.astro.uni-koeln.de\/wp-content\/uploads\/2025\/12\/sfb-highlight-jan2026.jpg","alt":"SFB Science Highlight January 2026"},"title":"B2: A peculiar proplyd-like object in Cygnus (Nicola Schneider, Simon Dannhauer)","postMeta":[],"author":{"name":"admin","link":"#"},"date":"Jan 1, 2026","dateGMT":"2026-01-01 07:00:00","modifiedDate":"2025-12-05 10:38:27","modifiedDateGMT":"2025-12-05 09:38:27","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":36},"status":"publish","content":"Proplyds are young stars surrounded by gas and dust discs that lose material through internal and external photo-evaporation. Understanding their evolution requires measurements of gas masses and key timescales, obtained"}]
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.
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[{"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":"#"},"date":"Feb 1, 2026","dateGMT":"2026-02-01 08:24:35","modifiedDate":"2026-02-02 09:59:01","modifiedDateGMT":"2026-02-02 08:59:01","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","content":"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.\n\n\n\nOur simulation catalogues are primarily based on data from COSMOS2020, using HST, Subaru, VISTA and Spitzer data which covers a 1.44deg\u00b2 range up to z = 10. However, this data has known incompleteness at the low and high redshift ranges, so we must account for it via multiple extrapolation techniques. By calibrating using the in-depth CANDELS subsample, and fitting to the stellar mass function of the sample, we can make samples comparable to the latest JWST data from the COSMOS-Web pencil survey (see figure). From this robust mock catalogue we can test LIM techniques such as masking (see Karoumpis et al 2024, the science highlight 10.25), thereby providing an empirical backing to other simulations and their contaminant removal techniques. This also provides a framework for upcoming cross-correlation work, including cross-instrument cross-correlations, which we will cover later this year.\n\n\n\nThis work will be submitted to A&A shortly, though it is based on earlier work focussing on [CII] signal (https:\/\/doi.org\/10.1051\/0004-6361\/202450300)"}]
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