First detections of FS Canis Majoris stars in clusters - Evolutionary state as constrained by coeval massive stars

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Volume 575 (March 2015)

A&A, 575 (2015) A10

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Table 3

Identification and violet/red radial velocities of detected spectral features on Mc20-16 and Mc70-14.

λ _vacuum	Ion	(km s^-1)		(km s^-1)
(Å)		Viol./Red	Mean	Viol./Red	Mean

1.67648	Mg ii	–97/bld	?	–171/bld	?
1.67733	[Fe ii]	bld/bld	?	bld/bld	?
1.67809	[Fe ii]	–56/146	45	–187/6	–90.5
1.67918	Fe ii]	non-detection		bld/bld	?
1.68045	Mg ii	non-detection		bld/bld	?
1.68111	H i	–82/157	37.5	–186/–5	–95.5
1.68778	Fe ii]	–62/142	40	–173/0	–86.5
~1.6905^a	?	−	−	−	−
1.70070	He i	235^b		(1 peak)	–95
1.73096	Fe ii]	non-detection		–170/bld	?
1.73225	Fe ii]	–79/bld	?	bld/bld	?
1.73295	Fe ii]	bld/bld	?	bld/bld	?
1.73432	Fe ii]	bld/135	?	bld/21	?
1.73668	H i	–79/155	38	–174/–9	–91.5
1.74045	Fe ii]	–97/bld	?	–172/bld	?
1.74167	Mg ii	bld/bld	?	bld/bld	?
1.74188	Fe ii]	bld/bld	?	bld/bld	?
1.74541	[Fe ii]	non-detection		–214/tellu	?
1.74586	Mg ii	non-detection		tellu/–4	?
2.05869	He i	–85/179	47	–173/0	–86.5
2.08938	Fe ii]	–27/137	55	–191/–29	–110
2.11258	He i	non-detection		(1 peak)	–114
2.13748	Mg ii	–99/190	45.5	–200/–27	–113.5
2.14380	Mg ii	unresolved peaks		–169/–47	–108
2.16612	H i	–39/143	52	–141/–36	–88.5
~2.1867^a	?	non-detection		−	−

Notes. Unknown data are labeled as question marks. When radial velocities cannot be reliably calculated, short explanations are given, where the following abbreviations are used: bld, blended with a neighboring line; tellu, a strong telluric line distorts the peak shape.

^(a)

Vacuum wavelengths of unidentified lines have been estimated so that the radial velocities are roughly coincident with the values for the rest of lines.

^(b)

This value is not considered for average radial velocity since the peak is neither photospheric nor disk-generated; see text for discussion.

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