COSMOS2020: Manifold learning to estimate physical parameters in large galaxy surveys

Open Access

Table 1.

Optical and NIR data building the observer-frame color space explored by the SOM.

Instrument	Band	Central ^(a)	COSMOS depth ^(b)	SXDF depth ^(b)
		λ [Å]	2″ aper. [mag]	2″ aper. [mag]
MegaCam/CFHT	u	3858	27.7	27.93

Subaru/HSC	g	4847	28.1	27.39
	r	6219	27.8	26.91
	i	7699	27.6	26.66
	z	8894	27.2	26.07
	y	9761	26.5	25.34

VISTA/VIRCAM	Y	10 216	25.3/26.6	25.41
	J	12 525	25.2/26.4	24.89
	H	16 466	24.9/26.1	24.56
	K_s	21 557	25.3/25.7	24.23

Spitzer/IRAC	ch1	35 686	26.4	25.94
	ch2	45 067	26.3	25.68

Notes.

^(a)

Median of the transmission curve.

^(b)

Depth at 3σ computed on PSF-homogenized images (except for IRAC images) in empty apertures with 2″ diameter.

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