Speaker
Description
To understand the origin of heavy elements, it is crucial to understand early star-forming activity. Observations with the James Webb Space Telescope have unveiled more early galaxies than expected, highlighting the need for complementary tracers of obscured star-formation in the early Universe.
(Sub)millimetre spectroscopy provides direct access to dust emission and far-infrared fine-structure lines such as [C II], one of the brightest coolants of the interstellar medium. Although interferometers like ALMA and NOEMA possess a very high sensitivity at these frequencies, they are inefficient for large surveys due to their limited field-of-view and instantaneous bandwidth. Direct-detection cameras provide wider fields of view, but no spectral information, rendering them unable to map the line-of-sight.
We are developing TIFUUN (Terahertz Integrated Field Units with Universal Nanotechnology). This imaging spectrometer with hundreds of spectral channels uses kinetic inductance detectors to rapidly map the early Universe in three dimensions. TIFUUN will be used efficiently for line intensity mapping through SUBLIME (Study of the Universe By Line Intensity Mapping). In line intensity mapping, the integrated emission of a spectral line over various spatial scales is studied. In this way, numerous faint galaxies that are difficult to detect in isolation can be probed. SUBLIME-TIFUUN targets the [C II]-line, providing power spectra between z=4.9 and 8.7.
TIFUUN is designed with SUBLIME in mind, to control for low-redshift interlopers and achieve maximal mapping speed with large single-dish telescopes such as ASTE, FYST, and APEX. In this talk, we discuss the development of TIFUUN, its planned data-scientific methods for analysis and the theoretical prognosis for SUBLIME.
The creation of SUBLIME-TIFUUN will offer a unique view into the early Universe, enabling new insights into galaxy formation, the production of heavy elements in the early Universe, and possibly new insights into cosmology.
| Talk category | Splinter 1: Large Infrastructure and instrumentation |
|---|---|
| Second preference | NOVA Network 1 |
