A Radial velocity survey of spatially resolved young, low-mass binaries

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Table 1.

Target sample properties.

2MASS ID	SpT	Period estimate (yr)	YMG/Association	YMG/Association Reference	YMG/Association Age (Myr)
J01112542 + 1526214	M5.0+M6.0	12	β Pic	M14	24 ± 3
J02451431 − 4344102	M4.0+M4.5	13	....
J02490228 − 1029220	M1.5+M3.5+M3.5	30	β Pic?	B16	24 ± 3
J03323578 + 2843554	M4.0+M4.5+M5.5	8	β Pic	M14, J14	24 ± 3
J04244260 − 0647313	M4.0¹	<0.2⁷	Argus	M13	40 ± 10^a
J04373746 − 0229282	M0.0+M3.0	29⁸	β Pic	M13	24 ± 3
J04595855 − 0333123	M4.0+M5.5	9	Argus?	M13, J14	40 ± 10
J05284446 − 6526463	M5.0+M5.5²	1.6²	AB Dor	LS06
J05301858 − 5358483	M3.0+M4.0+M6.0	25	AB Dor^∗∗	M14
J05320450 − 0305291	M2.0+M3.5	23	β Pic?	M13, J14	24 ± 3
J06112997 − 7213388	M4.0+M5.0	8	Carina	M14
J06134539 − 2352077	M3.5+M5.0	13	Argus	M14, J14	40 ± 10
J06161032 − 1320422	M3.5+M5.0	37	β Pic?	M13, J14	24 ± 3
J07285137 − 3014490	M1.5+M3.5	33	AB Dor	M13
J08475676 − 7854532	M3.0³	....^∗	η Cha	LM13	11 ± 3^b
J09075823 + 2154111	M2.0+M3.5	12	....
J09164398 − 2447428	M0.5+M2.5	10	....
J10140807 − 7636327	M4.0+M5.5	17	Carina	M14
J10172689 − 5354265	M6.0+M6.0⁴	5.15⁴	β Pic	M13	24 ± 3
J11315526 − 3436272	M2.5+M9.0	5.94⁹	TW Hya	M14	10 ± 3
J12072738 − 3247002	M1.0⁵	4.2¹⁰,¹¹	TW Hya	M14	10 ± 3
J12202177 − 7407393	M1.0³	....^∗	Cha	LM13	∼6
J13493313 − 6818291	M2.0+M4.0+M3.5	25	Argus	M13	40 ± 10^a
J15573430 − 2321123	M1.0⁶	27¹²	Upper Scorpius	R15	11 ± 2^c
J20163382 − 0711456	M0.0+M2.0	18	Argus^∗∗	M14, J14	40 ± 10^a
J20531465 − 0221218	M3.0+M4.0	13	Argus?	M13	40 ± 10^a
J23172807 + 1936469	M3.0+M4.5	33	β Pic?	M13, J14	24 ± 3
J23205766 − 0147373	M4.0¹	....^∗	Argus	M14	40 ± 10^a
J23495365 + 2427493	M3.5+M4.5	38	β Pic/Columba?	M13, J14	24 ± 3 /

Notes. Individual spectral types derived by Janson et al. (2012) following the methods of Daemgen et al. (2007), unless otherwise noted. Estimated orbital period based on system mass and approximate semimajor axis taken from Janson et al. (2014b) unless otherwise noted. “?” in column 4 denotes ambiguity in association membership. YMG/Association ages are taken from Bell et al. (2015) unless otherwise noted.

^(∗)

Sources are partially resolved or previously resolved at small separations indicating rapid orbital periods (Köhler 2001; Köhler & Petr-Gotzens 2002; Daemgen et al. 2007).

^(∗∗)

J053018 and J201633 YMG membership is highly unlikely following our analysis detailed in Sects. 4.1 and 4.2 respectively.

⁽¹⁾

Integrated spectral type (Int SpT); Alonso-Floriano et al. (2015)

⁽²⁾

Janson et al. (2007)

⁽³⁾

Int SpT; Riaz et al. (2006)

⁽⁴⁾

Bonnefoy et al. (2009)

⁽⁵⁾

Int SpT; Chauvin et al. (2010)

⁽⁶⁾

Int SpT; Carpenter et al. (2006)

⁽⁷⁾

Shkolnik et al. (2010)

⁽⁸⁾

Montet et al. (2015)

⁽⁹⁾

Konopacky et al. (2007)

⁽¹⁰⁾

Bailey et al. (2012)

⁽¹¹⁾

Bonavita et al. (2016)

⁽¹²⁾

Lafrenière et al. (2014)

^(a)

Malo et al. (2013)

^(b)

Torres et al. (2008)

^(c)

Pecaut et al. (2012).

References. – B16; Bergfors et al. (2016), J14; Janson et al. (2014b), LM13; López Martí et al. (2013), LS06; López-Santiago et al. (2006), M13; Malo et al. (2013), M14; Malo et al. (2014), R15; Rizzuto et al. (2015), W94; Walter et al. (1994).

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