New ultracool dwarf candidates from multi-epoch WISE data

Open Access

Table 2

New high-proper-motion objects detected in this work.

CWISE	RA	Dec	pm	W2	W1-W2	J	Ks	Teff	SpT	Dist	V_tan
	J2016.0	J2016.0	″/year					K		pc	km/s
J011816.64-723917.9	19.5683	–72.6550	0.96	15.39	1.62				T4–T6⁽²⁾	31 ± 5	141 ± 33
J105018.24-683054.9	162.5751	–68.5153	0.96	15.15	2.20	17.59		700–850	T7–T8	23 ± 4	104 ± 22
J214516.34+235253.0	326.3177	23.8812	0.88	15.77	2.69	18.55			T6–T8⁽¹⁾	29 ± 7	120 ± 33
J214706.01-540407.6	326.7749	–54.0688	0.83	15.21	2.55	17.26	17.18	950–1000	T6	29 ± 3	115 ± 14
J140048.92+253759.8	210.2037	25.6333	0.82	15.55	2.81	18.95			T7–T9⁽¹⁾	24 ± 6	95 ± 25
J233228.09-301831.8	353.1171	–30.3089	0.74	15.30	1.68				T3–T6⁽¹⁾	32 ± 5	112 ± 16
J045456.23-742522.6	73.7343	–74.4229	0.70	15.48	2.42				T4–Y0⁽²⁾	25 ± 8	83 ± 26
J114557.19+673327.5	176.4881	67.5576	0.67	15.88	1.03				T2⁽¹⁾	56 ± 6	179 ± 24
J020149.83-050629.6	30.4577	–5.1084	0.65	15.45	1.74	17.88	18.17	700–850	T7–T8	26 ± 5	82 ± 15
J024641.43-634329.2	41.6727	-63.7248	0.65	15.21	1.60	16.91	16.94	900–1000	T6	27 ± 4	85 ± 12

Notes. The objects are listed in order of decreasing proper motion. Only the objects with reasonably late spectral types (Teff<1300 K or W1 – W2 > 0.8, roughly corresponding to T0 spectral type) and a subset of columns are shown, while the complete table is available at the CDS.⁽¹⁾Spectral type estimated as a median spectral type of closest objects from UltraCoolSheet (Best et al. 2024a) in two-color diagrams akin to Figure 7.⁽²⁾Spectral type estimated from W1 – W2 color and a table of colors from Pecaut & Mamajek (2013).

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.