The large-scale disk fraction of brown dwarfs in the Taurus cloud as measured with Spitzer

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Table 1:

IRAC *Spitzer* photometry for BDs.
Name	2MASS name	N(H₂)	Sp Type	Disk	[3.6]	[4.5]	[5.8]	[8]	$A_{\rm V}$
		(10²¹ cm^-2)		presence
J041411+281153	04141188+2811535	5.89	M6.25	yes	10.93	10.40	10.12	8.99	1.06
KPNO-Tau 1	04151471+2800096	3.60	M9.00	no	13. 23	12.72	12.94	12.81	0.41
KPNO-Tau 2	04185115+2814332	5.88	M6.75	no	12.25	12.11	12.02	11.84	0.37
KPNO-Tau 12	04190126+2802487	4.98	M9.00	yes	13.97	13.61	13.23	12.75	0.53
CFHT-Tau 14	04221644+2549118	1.86	M7.75	no	11.48	11.34	11.28	11.23	0.57
CFHT-Tau 9	04242646+2649503	2.04	M6.25	yes	11.16	10.88	10.51	9.83	0.91
J042728+261205	04272799+2612052	2.03	M9.50	no	12.57	12.37	12.21	12.08	2.45
CFHT-Tau 15	04274538+2357243	1.88	M8.25	no	13.24	13.15	13.25	13.06	1.30
KPNO-Tau 5	04294568+2630468	1.92	M7.50	no	11.05	11.02	10.94	10.83	0.00
KPNO-Tau 6	04300724+2608207	2.39	M9.00	yes	13.12	12.77	12.42	11.58	0.88
CFHT-Tau 16	04302365+2359129	2.42	M8.50	no	13.23	13.16	13.04	12.99	1.51
KPNO-Tau 7	04305718+2556394	2.25	M8.25	yes	12.62	12.29	11.99	11.25	0.00
CFHT-Tau 13	04312669+2703188	3.83	M7.25	no	12.90	12.75	12.72	12.67	3.49
CFHT-Tau 7	04321786+2422149	5.43	M6.50	no	9.98	9.87	9.76	9.72	0.00
CFHT-Tau 5	04325026+2422115	6.10	M7.50	no	10.46	10.27	10.10	10.07	9.22
CFHT-Tau 12	04330945+2246487	3.72	M6.50	yes	10.86	10.63	10.34	9.95	3.44
CFHT-Tau 1	04341527+2250309	3.56	M7.00	no	11.24	11.10	10.98	11.02	3.10
CFHT-Tau 11	04350850+2311398	2.16	M6.75	no	11.19	11.12	11.04	10.99	0.00
KPNO-Tau 9	04355143+2249119	2.03	M8.50	no	13.63	13.52	13.67	13.41	0.00
CFHT-Tau 2	04361038+2259560	3.07	M7.50	no	11.63	11.43	11.34	11.33	0.00
CFHT-Tau 3	04363893+2258119	2.55	M7.75	no	11.79	11.69	11.60	11.57	0.00
J043801+255857	04380083+2558572	4.40	M7.25	no	9.60	9.47	9.37	9.31	0.64
J043814+261139	04381486+2611399	4.20	M7.25	yes	10.80	10.21	9.64	8.92	0.00
GM Tau	04382134+2609137	5.24	M6.50	yes	9.27	8.77	8.43	7.81	4.34
J043904+254426	04390396+2544264	4.88	M7.25	yes	10.75	10.46	10.02	9.14	0.40
CFHT-Tau 4	04394748+2601407	6.21	M7.00	yes	9.54	9.07	8.60	7.79	2.64
J044111+255511	04411078+2555116	5.07	M6.50	yes	10.78	10.35	9.92	9.22	1.80
J044148+253430	04414825+2534304	5.84	M7.75	yes	11.43	10.93	10.50	9.54	1.06
J044427+251216	04442713+2512164	3.10	M7.25	yes	9.56	9.00	8.36	7.43	0.00
J041524+291043	04152409+2910434	2.26	M7.00	no	11.86	11.79	11.66	11.49	1.18
J041618+275215	04161885+2752155	4.83	M6.25	no	10.88	10.78	10.67	10.68	1.07
J042900+275503	04290068+2755033	1.99	M8.25	yes	12.30	11.99	11.60	10.92	0.00
J043119+233504	04311907+2335047	2.27	M7.75	no	11.66	11.53	11.56	11.46	0.90
J043203+252807	04320329+2528078	1.91	M6.25	no	10.30	10.20	10.13	10.09	0.00
J043223+240301	04322329+2403013	3.01	M7.75	no	10.89	10.83	10.79	10.68	0.00
J043342+252647	04334291+2526470	2.71	M8.75	no	12.76	12.63	12.52	12.47	0.62
J043545+273713	04354526+2737130	1.65	M9.25	no	13.18	13.11	12.93	13.07	0.28
J043610+215936	04361030+2159364	1.08	M8.50	yes	13.02	12.74	12.41	11.74	0.33
J042420+263051^a	04242090+2630511	3.77	M6.50	yes	11.83	11.45	11.00	10.40	0.85
J043352+261254^a	04335245+2612548	3.78	M8.50	yes	13.17	12.66	12.28	11.40	5.20
J042630+244355	04263055+2443558	3.37	M8.75	yes	12.57	12.21	11.76	11.08	0.00
J042154+265231	04215450+2652315	5.30	M8.50	no	13.22	13.12	12.90	12.80	2.97
CFHT-Tau 10	04214631+2659296	3.53	M6.25	yes	11.54	11.32	11.05	10.45	3.59

Notes. ^(a) Denotes the two objects found from their IR excess.

Source LaTeX | All tables | In the text

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