14-18 October 2019
T-Hotel Cagliari
Europe/Rome timezone

"ALCHEMI: The ALMA Comprehensive High-resolution Extragalactic Molecular Inventory"

16 Oct 2019, 12:05
25m
T-Hotel Cagliari

T-Hotel Cagliari

Via Dei Giudicati, 66 | 09131 Cagliari | Sardinia, Italy

Speaker

Dr Sergio Martín

Description

Invited talk

Abstract:
NGC 253 is the one of the brightest molecular emitters outside the Galaxy and therefore the more suited candidate for deep molecular surveys. In this presentatio i will summarize the current status of the ALCHEMI project which an ALMA large program consisting of an unbiased line survey
from ALMA bands 3, 4, 6, and 7 (85-370 GHz), whose scope was extended this Cycle to also cover Band 5. In particular i will focus on the first results on the low resolution data from the 7m compact array which already shows an unprecedented molecular richness as well as first
look into the chemistry revealed at the highest resolution.
Despite of being observed at every wavelengths for decades, ALMA keeps unveiling new details on its central molecular zone. Additionally to ALCHEMI, I will present results from deep observations spin-off ALMA projects which were going in parallel to this survey which targetted isotopic ratio based on the double isotopologue 13C18O, deuteration, and vibrational emission in NGC 253.

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