Chemical composition of carbonaceous asteroid Ryugu from synchrotron spectroscopy in the mid- to far-infrared of Hayabusa2-returned samples

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Volume 671 (March 2023)

A&A, 671 (2023) A2

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Table 1

Ryugu samples analysed.

Sample	Region	Size	#spectra
		(μm × μm)^(a)	/map
A0064–FO013	17-top-a	320 × 270	11780
A0108–15	03-bot-a	130 × 130	2750
	03-bot-b	110 × 65	1100
	03-top-a	65 × 105	770
	03-top-b	65 × 70	506
	03-top-c	55 × 55	361

A0108–19	03-bot-a	260 × 300	8989
	03-top-a	260 × 300	9090
	b-bot-a	60 × 180	1323
	b-bot-b	35 × 80	620
	b-top-a	70 × 75	784
	b-top-b	90 × 125	1800
	b-top-c	75 × 100	1110

A0064–FO020	bot-a	130 × 100	1692
	top-a	125 × 50	1551

A0064–FO021	bot-a	140 × 185	4440
	top-a	55 × 100	1014

A0106–13	bot-a	185 × 240	6336
	top-a	110 × 30	574
	top-b	50 × 45	360

C0046–FO004	10-bot-a	55 × 110	1025
	10-top-a	60 × 110	1189
	10-top-b	70 × 70	1^(b)

C0002–FC016	bot-a	130 × 130	2805
	top-a	140 × 130	2352

C0040–FC025	bot-a	417 × 393	18209
	bot-b	192 × 246	5248

C0109–4	bot-a	200 × 190	5250
	top-a	200 × 200	5256

C0109–10	bot-a	180 × 180	5767
	top-a	200 × 200	5110

C0057–5	bot-a	40 × 65	391
	bot-b	80 × 110	999^(c)
	bot-c	40 × 45	289
	bot-d	40 × 40	240

Notes. ^(a)Projected size (flattened on the diamond window). ^(b)No map, global spectrum over the size mentioned. ^(c)Measured but not used because of contamination suspicion of part of the map with a deposited small dust particle during measurements.

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