2022AJ....163..116K

Query : 2022AJ....163..116K

2022AJ....163..116K - Astron. J., 163, 116-116 (2022/March-0)

Discovery of 16 new members of the solar neighborhood using proper motions from CatWISE2020.

KOTA T., KIRKPATRICK J.D., CASELDEN D., MAROCCO F., SCHNEIDER A.C., GAGNE J., FAHERTY J.K., MEISNER A.M., KUCHNER M.J., CASEWELL S., KACHOLIA K., BICKLE T., BEAULIEU P., COLIN G., HAMLET L.K., SCHUMANN J., TANNER C. (The Backyard Worlds: Planet 9 Collaboration)

Abstract (from CDS):

In an effort to identify nearby and unusual cold objects in the solar neighborhood, we searched for previously unidentified moving objects using CatWISE2020 proper motion data combined with machine learning methods. We paired the motion candidates with their counterparts in 2MASS, UHS, and VHS. Then we searched for white dwarf, brown dwarf, and subdwarf outliers on the resulting color-color diagrams. This resulted in the discovery of 16 new dwarfs, including 2 nearby M dwarfs (<30 pc), a possible young L dwarf, a high-motion early-T dwarf, and 3 later-T dwarfs. This research represents a step forward in completing the census of the Sun's neighbors.

Abstract Copyright: © 2022. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Brown dwarfs - Solar neighborhood - Proper motions - Two-color diagrams

Simbad objects: 17

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Number of rows : 17
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 2MASS J01533011-5200473 ** 01 53 30.11136 -52 00 47.3652           ~ 1 0
2 WISEA J030009.90+413050.3 BD? 03 00 09.908760 +41 30 50.39208           ~ 1 0
3 WISE J040052.76-511141.9 BD? 04 00 52.76448 -51 11 41.9820           ~ 1 0
4 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
5 2MASS J04410921+2548556 PM* 04 41 09.211 +25 48 55.63           ~ 2 0
6 2MASS J05270333-1130562 PM* 05 27 03.3131021261 -11 30 56.467732429           ~ 1 0
7 CWISE J103716.54-750257.7 BD? 10 37 16.543152 -75 02 57.76260           ~ 1 0
8 2MASS J12065803-3112274 PM* 12 06 57.9987642837 -31 12 27.216295499           ~ 1 0
9 WISEA J123041.66+380145.2 BD? 12 30 41.665416 +38 01 45.28020           ~ 2 0
10 WISE J125924.97-552531.9 BD? 12 59 24.97872 -55 25 31.9116           ~ 1 0
11 WISE J141545.81-330544.0 BD? 14 15 45.81576 -33 05 44.0844           ~ 1 0
12 2MASS J14405398-1217064 PM* 14 40 53.9999053011 -12 17 06.408215976           ~ 1 0
13 WISE J184048.20+410727.8 BD? 18 40 48.20592 +41 07 27.8292           ~ 1 0
14 WISE J184841.82-875746.1 BD? 18 48 41.82048 -87 57 46.1268           ~ 1 0
15 WISE J210159.29-783845.5 BD? 21 01 59.29128 -78 38 45.5928           ~ 1 0
16 UCAC4 406-138860 LM* 21 58 59.577960 -08 54 40.57920   17.111 15.538 15.094   ~ 2 0
17 UCAC4 135-179475 ** 23 57 13.318104 -63 08 28.29228   16.950 15.722 15.373   M5 3 0

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