Spectroscopic binaries among Hipparcos M giants - I. Data, orbits, and intrinsic variations

Free Access

Table 1:

The four observing campaigns defining the four (sub)samples of Hipparcos M giants.
Sample	I	II	III	IV
Selection	2 measurements in Famaey et al. (2005)	$\sim$ 1/3 of I	all $\sigma(V_r) > 1$ km s^-1 from II	$\sigma(V_r) < 1$ km s^-1 from II
				$0^h \le \alpha \le 16.5^h$
$N_{\rm star}$	771	254	35	138
$N_{\rm meas}$ per star	2	${\ge} 4^a$	$\ge 5$	N(II) + 1
Telescope	Swiss 1-m (OHP)	Swiss 1-m (OHP)	1.93-m (OHP)	1.93-m (OHP)
Spectrograph	CORAVEL	CORAVEL	ELODIE	ELODIE
Time span	1991-1999	1993-1995	2000-2004	2001-2004

^a Seven stars have $N_{\rm meas} = 3$ .

Source LaTeX | All tables | In the text

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.