Séminaire IPAG

---

z-GAL - A NOEMA Redshift Survey of Bright Herschel Galaxies

jeudi 8 juin 2023 - 11h00

Pierre Cox - IAP, Paris
--- 
The Herschel surveys have enabled the detection of numerous dusty luminous sub-millimetre galaxies (SMGs) in the early universe. Follow-up observations of these sources are essential to determine their nature and the physical properties of their interstellar medium; reliable redshift measurements are therefore crucial to explore the molecular and atomic gas of these objects. We will here present the results of a Large Program, z-GAL, using NOEMA, aimed at a comprehensive 3 and 2-mm spectroscopic redshift survey of a large (137 sources) sample of the brightest (S500 μm>80 mJy) SMGs selected from the Herschel H-ATLAS, HerMES and HerS surveys. Reliable redshifts were derived for all sources but two, based on the detection of at least two emission lines, making it the largest sample of high-z galaxies with unambiguous redshifts to date. The spectroscopic redshifts are in the range 0.8

---

Hôtes : Roberto Neri

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères