LIM25 - Annecy

Session

Contributed Talks 5: CO LIM, Analysis and Modeling

Jun 3, 2025, 11:10 AM

Laboratoire d'Annecy de Physique Théorique (LAPTh)

Conveners

Contributed Talks 5: CO LIM, Analysis and Modeling

• Doğa Tolgay (University of Toronto / Canadian Institute for Theoretical Astrophysics (CITA))
• José Luis Bernal
• Carlos Sierra (Stanford / KIPAC)

Presentation materials

Bernal_Jose.pdf

Sierra_Carlos.pdf

Tolgay_Doga.pdf

46. Contributions of extragalactic emission lines to ground-based CMB observations

José Luis Bernal

6/3/25, 11:10 AM

Similarly to the CIB, emission lines can be an appreciable source of extragalactic foreground anisotropies for CMB experiments. If bright enough, they may be a relevant component to account for in component separation, given their strong correlation with the CIB, and even extracted as signal from the CMB observations. Therefore, they may entail both a challenge and an opportunity for modelers...

58. Creating Mock Maps for Line Intensity Mapping Experiments

Doğa Tolgay (University of Toronto / Canadian Institute for Theoretical Astrophysics (CITA))

6/3/25, 11:25 AM

Line Intensity Mapping (LIM) provides access to previously elusive data, facilitating statistical analysis. Many LIM experiments are currently in the pathfinder stage, and the absence of confirmed detections underscores the critical role of mock maps for exploring the correlations between line emissions and galaxy properties. Mock maps are created by painting the dark matter halos according to...

67. Joint component separation for multi-tracer mm-wave intensity mapping

Carlos Sierra (SLAC / Stanford University)

6/3/25, 11:40 AM

The constraining power of upcoming line intensity mapping surveys will be limited by the presence of bright foregrounds and line interlopers. In this work, we implement a CMB-style multi-component separation framework to isolate emission lines of interest by considering correlations between all sources. Working in the context of CO mapping, we model and jointly fit all relevant mm-wave...