Présidents de session
Tuesday P1
- Stefano Berta
Tuesday P1
- Andrea Catalano (LPSC)
Wide, deep, blind continuum surveys at submillimetre/millimetre (submm/mm) wavelengths are required to provide a full inventory of the dusty, distant Universe. However, conducting such surveys to the necessary depth, with sub-arcsec angular resolution, is prohibitively time-consuming, even for the most advanced submm/mm telescopes. In this talk, I will report the most recent results from the...
We use high sensitivity, beam-matched APEX, ALMA, and ACA (sub)-mm observations to study the state of the cold molecular gas in a sample of ~40 local ultra luminous infrared galaxies (ULIRGs), hence probing mostly galaxy mergers characterized by strong starburst and AGN activity. We aim to understand how such energetic feedback processes affect the kinematics and excitation of the molecular...
Over the last year, we have witnessed a mad dash as the community tries to confirm candidate z>10 galaxies identified through HST and JWST photometry. Multiple ALMA DDT observations have been conducted, targeting the [OIII] 88 micron (and [CII] 158 micron) emission of these candidates, with the aim of securing their redshifts. But, at the time of this abstract submission, none of these...
Despite recent discoveries of quasar feedback in action through outflows and jets, the amount of energy that the active nucleus is capable of injecting into the extended interstellar medium of the host galaxy remains unknown. The most mysterious component of quasar feedback is the lowest density, hot volume-filling gas. Though there are tentative detections of this component via its thermal...
Since the first (sub)mm observations, it has been clear that the cosmic census of high-z galaxies based on deep optical/NIR surveys is quite far from complete. The "darkest galaxies", in which significant amounts of dust absorb the stellar emission, are missed by these surveys, even though their contribution to the cosmic Star Formation Rate Density and to the evolution of massive galaxies is...
Galaxies in voids have experienced a different environment than non-void galaxies during their entire existence. Their properties are possibly different from non-void galaxies, however, systematic studies have been missing for a long time. The Legacy Survey CAVITY (Calar Alto Void Treasury Integral-field Survey) aims to fill this gap. It will observe about 300 carefully selected void galaxies...
One of the main challenges of the next generation of cosmic microwave background (CMB) experiments is probing the primordial gravitational waves signal that have left an imprint in the curly pattern (a.k.a B -modes) of the CMB polarization. This very weak signal, if detected, will probe the existence of the inflation era and open the path to a physics beyond the standard model.
This goal has...
The MIllimeter Sardinia radio Telescope Receiver based on Array of Lumped elements kids (MISTRAL) is a millimetric total power camera operating at 90 GHz installed at the Sardinia Radio Telescope (SRT). MISTRAL provides a wide 4’ field of view, sampled at a resolution of 12’’ with ~400 Kinetic Inductance Detectors. After technical and scientific commissioning (planned for 2023), MISTRAL will...
We present the results of a study on the feasibility of upgrading the existing ALMA Band 9 receivers (602-720 GHz). In the current configuration, each receiver is a dual channel heterodyne system capable of detecting orthogonally polarized signals through the use of a wire grid and a compact arrangement of mirrors. The main goals of the study are the upgrade of the mixer architecture from...
