The NEMESIS catalogue of young stellar objects for the Orion star formation complex - I. General description of data curation

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Table D.4

Data types related to YSOs’ IR classification.

key	description	units	count	# sources
Standard Classification Scheme (`ir/stnadard_classification_nemesis.csv`)
`alpha_2_24`	α_IR estimated in Sect. 3.3.	−	25 799	25 799
`class_2_24`	Standard infrared classes derived in Sect. 3.3 ^a	−	27879	27879
`lambda_min_2_24`	Minimum wavelength available for α_IR estimation	µm	25 799	25 799
`lambda_max_2_24`	Maximum wavelength available for α_IR estimation	µm	25 799	25 799
Literature values (`disk_literature.csv`)
`alpha`	α_IR compiled from the literature	−	48 657	5 379
`class`	IR class compiled from the literature	−	16716	8 097
`IR_range`	wavelength range used for classification^b	−	62986	9 438
`class_method`	IR classification method^c	−	62986	9 438
`disc`	disc description keyword	−	8 054	4096
`IR_ext`	Furhter infrared information available^d	−	1 159	1137

Notes. ^(a)IR classes follow Table 1. When no α_IR could be estimated, a label not classified is attributed instead. ^(b)Possible values for IR_range: For example, >2 indicates a generic IR-range with available photometry from 2µm, and 3–8 indicates that photometry in the range 3–8µm was used.’ ^(c)Classification methods are summarized in Sect. 3.3. Possible values: standard for the standard classification scheme (Lada 1987; Andre et al. 1993); Hernandez for Hernández et al. (2007b); MGM for classification as in Megeath et al. (2012); TD for classification schemes focused on Transition discs; Robitaille for evolution classes derived with Robitaille et al. (2006) models, misc for miscellaneous classification schemes. ^(d)Set to True if further information about IR-emission is available in the literature (for example, IR-excesses) but have not been included in the literature.

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