Hot subdwarf stars in close-up view - IV. Helium abundances and the 3He isotopic anomaly of subdwarf B stars

Home

All issues

Volume 557 (September 2013)

A&A, 557 (2013) A122

Full HTML

Free Access

Table 1

Target sample and data.

Object	Other names	m [mag]	Instrument	No. spec	S/N	ISIS	SAAO-Reticon	CAFOS

BD+48 2721		10.7^V	FOCES	1	84
[CW83] 0512−08		11.3^V	FEROS	2	66
[CW83] 1758+36	PG 1758+364	11.4^V	FOCES	1	41
EC 00042−2737		14.0^V	FEROS	2	21		+
EC 01120−5259		13.5^V	FEROS	2	45		+
EC 02542−3019		12.8^B	FEROS	2	39		+
EC 03263−6403		13.2^V	FEROS	1	17
EC 03408−1315		13.6^V	FEROS	3	29
EC 03470−5039^ir		13.6^V	FEROS	2	31		+
EC 03591−3232	CD −32 1567	11.2^V	FEROS	2	73
EC 05479−5818		13.1^V	FEROS	3	47		+
EC 10189−1502		13.8^V	FEROS	2	35
EC 12234−2607		13.8^V	FEROS	3	26
EC 13047−3049		12.8^V	FEROS	2	47		+
EC 14248−2647		12.0^V	FEROS	1	60		+
EC 14338−1445^rv		13.5^V	FEROS	3	37		+
EC 20106−5248		12.6^V	FEROS	4	60		+
EC 20229−3716		11.4^V	FEROS	3	69
EC 21043−4017		13.1^V	FEROS	2	37
EC 22081−1916		12.9^V	FEROS	3	40
Feige 38	PG 1114+072	12.8^B	FEROS	5	89	+		+
Feige 65	PG 1233+426	11.8^B	FOCES	1	54
GD 108	PG 0958−072	13.3^B	FEROS	3	61			+
HE 0447−3654		14.6^V	FEROS	1	26
LB 1516^l^rv		12.7^B	FEROS	2	35
PB 5333		12.5^B	FEROS	1	42	+		+
PG 0342+026		11.1^B	FEROS	4	106
PG 0909+164^s		13.9^B	FEROS	2	33	+
PG 0909+276		13.9^B	FEROS	2	52			+
PG 1303+097		14.3^B	FEROS	3	31	+
PG 1505+074		12.2^B	FEROS	3	102	+		+
PG 1519+640^rv		12.1^B	FOCES	1	39	+
PG 1616+144		13.5^B	FEROS	1	24	+
PG 1653+131		14.1^B	FEROS	3	40	+
PG 1710+490		12.1^B	FOCES	1	27	+
PG 2151+100		12.9^B	FEROS	3	39
PG 2205+023		12.9^B	FEROS	2	19	+
PG 2314+076^rv		13.9^B	FEROS	2	41	+
PG 2349+002		12.0^B	FEROS	2	50	+
PHL 44^l	EC 21324−1346	13.0^B	FEROS	3	44
PHL 334	TON S 61	12.5^B	FEROS	3	48
	BPS CS 23431−0044
PHL 457^l^rv	GD 1110	13.0^B	FEROS	2	50
PHL 1548		12.5^B	FEROS	3	42
SB 815	CD −35 15910	10.6^B	FEROS	2	50

Notes.

^(s)

Pulsating subdwarf of V 361 Hya type (sdBV_r).

^(l)

Pulsating subdwarf of V 1093 Her type (sdBV_s).

^(rv)

Radial velocity variable star in a close binary (PHL 457, LB 1516, Edelmann et al. 2005; PG 1519+640, PG 2314+076, Copperwheat et al. 2011). A maximum RV shift of 54.0 ± 1.4 km s^-1 has been detected between the three FEROS spectra of EC 14338−1445 analysed in this work.

^(ir)

An excess in the infrared 2MASS colours has been reported by Copperwheat et al. (2011), which may be due to a late main sequence companion.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.