Search for cold debris disks around M-dwarfs. II | Astronomy & Astrophysics (A&A)

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Table 4:

Reanalysis of the MAMBO-2 data of the M-dwarfs associated with moving groups of survey I.
Name	Spectral	D	Gal. l.	Integration	Map rms	Mean brightness	$\mu / \sigma _{\mu }$	$3\sigma$ flux density
	type	(pc)	( $^{\circ}$ )	time	(mJy/11'' beam)	$\mu \pm \sigma_{\mu}$	(2)	upper limit (1.2 mm)
				(hours)		(mJy/11'' beam)		(mJy)
					(1)	(2)		(3)
GJ65	M5.5	2.6	-76	1.0	2.30	-0.15 $\pm$ 0.17	-0.87	<10.4
GJ628	M3.5	4.5	24	20.0	0.51	-0.06 $\pm$ 0.08	-0.74	<1.3
GJ876	M4	4.7	-59	0.5	2.80	0.17 $\pm$ 0.46	0.37	<7.0
GJ873	M3.5	5.0	-13	0.5	2.31	0.33 $\pm$ 0.38	0.86	<5.4
GJ3379	M4	5.4	-10	0.5	2.57	0.05 $\pm$ 0.56	0.09	<5.6
GJ285	M4.5	5.9	13	1.0	1.74	-0.88 $\pm$ 0.35	-2.52	<1.9
GJ402	M4	6.8	55	1.0	1.81	-0.86 $\pm$ 0.39	-2.18	<2.0
GJ393	M2	7.2	47	1.5	1.51	-0.50 $\pm$ 0.33	-1.50	<1.6
GJ849	M3.5	8.8	-45	0.5	2.71	0.66 $\pm$ 0.89	0.74	<2.9
GJ791.2	M4.5	8.9	-17	1.0	1.70	-0.87 $\pm$ 0.57	-1.53	<1.8
GJ856A	M3	16.0	-20	1.1	1.50	-0.56 $\pm$ 1.50	-0.37	<1.6
GJ9809	M0	24.0	03	0.5	2.20	0.36 $\pm$ 2.20	0.16	<2.4

(1) rms estimated for r < 60'' in the map; (2) mean brightness and uncertainty of mean computed by averaging intensities over an effective disk of radius 60 AU; (3) the $3\sigma$ flux density upper limit is computed also over the same effective area (radius = 60 AU).

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