DOI: 10.5281/zenodo.15442733
title: Integrated intensities for CH3OH and H2CO toward 8 GMCs in NGC 253 (Tables 1 and 2 in Huang+2025)

description: These datasets include the full versions of Tables 1 and 2 from Huang et. al (2025), "Investigating the chemical link between H2CO and CH3OH within the CMZ of NGC 253". Within the datasets are the integrated intensities and associated uncertainties of measurements of various transitions of methanol (CH3OH) and formaldehyde (H2CO) toward 8 Giant Molecular Clouds in NGC 253. Note that some transitions of each molecule are blended with other transitions of the same molecule, forming blending groups such that only one intensity measurement is extracted per blending group. In these tables, transition information for each of the components of the blending group are combined into one row, with the relevant information for each transition within the group provided but with a sinlge integrated intensity and uncertainty measurement listed per blending group. The descriptions and units of the columns in each table are as follows:

spin: the spin isomer(s) of the transition (E or A for CH3OH, o or p for H2CO), string

transitions: the transition(s) of interest, string

frequency: the frequency in gigahertz [GHz] of the transition(s), float

E_u: the upper-state energy in Kelvin [K] for the transition(s) of interest, float

A_ul: the Einstein A coefficient for the transition(s) of interest in units of inverse seconds [1/s], float

GMC1a: integrated intensity of the transition(s) of interest toward GMC 1a in units of Kelvin kilometers per second [K km/s], float

sig1a: the uncertainty associated with the integrated intensity measurement toward GMC 1a in units of Kelvin kilometers per second [K km/s], float

GMC2b: integrated intensity of the transition(s) of interest toward GMC 2b in units of Kelvin kilometers per second [K km/s], float

sig2b: the uncertainty associated with the integrated intensity measurement toward GMC 2b in units of Kelvin kilometers per second [K km/s], float

GMC3: integrated intensity of the transition(s) of interest toward GMC 3 in units of Kelvin kilometers per second [K km/s], float

sig3: the uncertainty associated with the integrated intensity measurement toward GMC 3 in units of Kelvin kilometers per second [K km/s], float

GMC4: integrated intensity of the transition(s) of interest toward GMC 4 in units of Kelvin kilometers per second [K km/s], float

sig4: the uncertainty associated with the integrated intensity measurement toward GMC 4 in units of Kelvin kilometers per second [K km/s], float

GMC6: integrated intensity of the transition(s) of interest toward GMC 6 in units of Kelvin kilometers per second [K km/s], float

sig6: the uncertainty associated with the integrated intensity measurement toward GMC 6 in units of Kelvin kilometers per second [K km/s], float

GMC7: integrated intensity of the transition(s) of interest toward GMC 7 in units of Kelvin kilometers per second [K km/s], float

sig7: the uncertainty associated with the integrated intensity measurement toward GMC 7 in units of Kelvin kilometers per second [K km/s], float

GMC8a: integrated intensity of the transition(s) of interest toward GMC 8a in units of Kelvin kilometers per second [K km/s], float

sig8a: the uncertainty associated with the integrated intensity measurement toward GMC 8a in units of Kelvin kilometers per second [K km/s], float

GMC9a: integrated intensity of the transition(s) of interest toward GMC 9a in units of Kelvin kilometers per second [K km/s], float

sig9a: the uncertainty associated with the integrated intensity measurement toward GMC 9a in units of Kelvin kilometers per second [K km/s], float