Observing the Universe at millimetre wavelengths

Session

Tuesday A

27 juin 2023, 09:00

LPSC Grenoble

Présidents de session

Tuesday A

• François-Xavier Désert (Univ Grenoble Alpes, CNRS, IPAG)

Tuesday A

• Alessandro Monfarini (CNRS)

22. The zGAL survey: first results

Stefano Berta

27/06/2023 09:00

zGAL observed a sample of ~140 bright Herschel-selected sources with NOEMA at 1, 2 and 3 mm, detecting more than 170 individual sources. Each object is detected in at least two emission lines, guaranteeing a 100% redshift success rate. I am going to present the first results of the survey. The spectral energy distributions - finely sampled by NOEMA - are used to derive the dust properties of...

69. IRAM 30-meter millimetre follow-up of deep OSIRIS / 10.4-meter GTC optical surveys

Dr Miguel Sánchez-Portal (IRAM, ASPID)

27/06/2023 09:30

It is broadly accepted that CO is a reliable tracer of molecular H in massive IR ($L_{\mathrm{I}\mathrm{R}}\ge {10}^9{L}_{\odot }$) galaxies, and that there are clear correlations between $L_{\mathrm{I}\mathrm{R}}$ and $L_{\mathrm{C}\mathrm{O}}^{\prime }$ that are qualitatively independent of environment and even redshift. We present two tales on the search for ${}^{12}$CO emission from dusty star-forming galaxies in both field (Lockman Hole, z...

55. TolTEC surveys: mapping the dusty galaxy contribution to the star formation history of the Universe

Itziar Aretxaga (INAOE)

27/06/2023 09:55

TolTEC a large-format (~7000 detector) imaging polarimeter will conduct two legacy extragalactic surveys at 1.1, 1.4 and 2.0mm at the 50m Large Millimeter Telescope. The Ultra-Deep Survey of Star-forming Galaxies (~0.8 sq.deg., r.m.s. ~0.025mJy at 1.1mm) is a confusion-limited survey which ties the entire Luminous Infrared Galaxy population from redshifts 2 to 10 directly to their optical...

51. The case for an all-sky millimetre survey at subarcminute resolution

François-Xavier Désert (Univ Grenoble Alpes, CNRS, IPAG)

27/06/2023 10:55

There are several new projects to survey the sky with millimetre eyes, the biggest being Simons Observatory and CMB-S4, in the Southern Hemisphere. The NIKA2 collaboration has acquired a knowledge sufficient to build a large focal plane KID camera for a 15-m antenna. This would allow covering the whole Northern Hemisphere in a couple of years at subarcminute resolution and with milliJansky...

19. CONCERTO: instrument and first results

Alessandro Fasano (Laboratoire d'astrophysique de Marseille (LAM))

27/06/2023 11:20

CONCERTO (CarbON CII line in post-rEionization and ReionizaTiOn) is a low-resolution spectrometer with an instantaneous field-of-view of 18.6 arcmin, operating in the 130–310 GHz transparent atmospheric window. It is installed on the 12-meter Atacama Pathfinder Experiment (APEX) telescope at 5 100 m above sea level.
The Fourier transform spectrometer (FTS) contains two focal planes hosting a...

61. The European Low Frequency Survey: observing the radio sky to understand the beginning of the Universe

Aniello Mennella (Università degli Studi di Milano - Istituto Nazionale di Fisica Nucleare)

27/06/2023 11:40

The leading theory to understand the initial conditions of the Big Bang is inflation, which predicts the existence of a primordial background of gravitational waves that must have left its imprint in the CMB polarization: the so-called B-modes. The main difficulty in measuring the B-mode polarization comes not just from its sheer faintness, but from the fact that many other objects in the...