2002AJ....123.3409H

Query : 2002AJ....123.3409H

2002AJ....123.3409H - Astron. J., 123, 3409-3427 (2002/June-0)

Characterization of M, L, and T dwarfs in the Sloan Digital Sky Survey.

HAWLEY S.L., COVEY K.R., KNAPP G.R., GOLIMOWSKI D.A., FAN X., ANDERSON S.F., GUNN J.E., HARRIS H.C., IVEZIC Z., LONG G.M., LUPTON R.H., McGEHEE P.M., NARAYANAN V., PENG E., SCHLEGEL D., SCHNEIDER D.P., SPAHN E.Y., STRAUSS M.A., SZKODY P., TSVETANOV Z., WALKOWICZ L.M., BRINKMANN J., HARVANEK M., HENNESSY G.S., KLEINMAN S.J., KRZESINSKI J., LONG D., NEILSEN E.H., NEWMAN P.R., NITTA A., SNEDDEN S.A. and YORK D.G.

Abstract (from CDS):

An extensive sample of M, L, and T dwarfs identified in the Sloan Digital Sky Survey (SDSS) has been compiled. The sample of 718 dwarfs includes 677 new objects (629 M dwarfs and 48 L dwarfs), together with 41 that have been previously published. All new objects and some of the previously published ones have new optical spectra obtained either with the SDSS spectrographs or with the Apache Point Observatory 3.5 m ARC telescope. Spectral types and SDSS colors are available for all objects; approximately 35% also have near-infrared magnitudes measured by 2MASS (Two Micron All Sky Survey) or on the Mauna Kea system. We use this sample to characterize the color-spectral type and color-color relations of late-type dwarfs in the SDSS filters and to derive spectroscopic and photometric parallax relations for use in future studies of the luminosity and mass functions based on SDSS data. We find that the i*-z* and i*-J colors provide good spectral type and absolute magnitude (M_i*_) estimates for M and L dwarfs. Our distance estimates for the current sample indicate that SDSS is finding early M dwarfs out to ∼1.5 kpc, L dwarfs to ∼100 pc, and T dwarfs to ∼20 pc. The T dwarf photometric data show large scatter and are therefore less reliable for spectral type and distance estimation.

Abstract Copyright: ∼

Journal keyword(s): Stars: Late-Type - Stars: Low-Mass, Brown Dwarfs - Surveys

VizieR on-line data: <Available at CDS (J/AJ/123/3409): table1.dat table3.dat table4.dat spectra.dat sp/* ml/*>

CDS comments: T.1 : 2MASS 1047+4026 = 2MASSW J1047138+402649

Simbad objects: 116

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Number of rows : 116
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 J00191165+0030176 BD* 00 19 11.6528273688 +00 30 17.682573816           L0.4V 18 0
2 2MASS J00220932-0110399 BD* 00 22 09.3204478176 -01 10 40.060702704           L0 10 0
3 SDSS J003524.44+144739.8 BD* 00 35 24.44136 +14 47 39.7536           L0V 6 0
4 2MASS J00384398+1343395 BD* 00 38 43.9966246584 +13 43 39.395897724           L0.6V 13 0
5 LP 465-70 B BD* 00 41 54.5473206600 +13 41 35.516063724           L0.6V 21 0
6 2MASS J00422118+1459236 BD* 00 42 21.14880 +14 59 23.8884           L0 7 0
7 2MASS J00540655-0031018 BD* 00 54 06.5846250888 -00 31 02.180997624           L2.2V 25 0
8 2MASS J00553841+2756523 LM* 00 55 38.4251516544 +27 56 52.271712996           M7V 4 0
9 Wolf 47 PM* 01 03 19.8350070578 +62 21 55.837228636   15.34 13.21 12.4   M5V 232 0
10 2MASSI J0103320+193536 BD* 01 03 32.03712 +19 35 36.1824           L6V 93 0
11 2MASS J01075242+0041563 BD* 01 07 52.42200 +00 41 56.3964           L8 64 0
12 2MASS J01274352+1354210 BD* 01 27 43.52856 +13 54 21.0132           L5 8 0
13 BRLT 38 BD* 01 51 41.55936 +12 44 30.0768           T0.5 74 0
14 DENIS J020529.0-115925 BD* 02 05 29.3651195393 -11 59 29.721210536           L7V 156 0
15 G 3-40B BD* 02 07 35.5935827901 +13 55 56.199116851           L1.5 28 0
16 2MASS J02112827+1410039 BD* 02 11 28.27990 +14 10 03.9502           L0 10 0
17 2MASS J02235793+0006227 LM* 02 23 57.9370244376 +00 06 22.166713512           M8V 6 0
18 SDSS J022723.77-005518.6 LM* 02 27 23.76624 -00 55 18.6564           M8 4 0
19 2MASS J02275495+0026201 LM* 02 27 54.95136 +00 26 19.9536           M9V 7 0
20 SDSS J022815.63+004026.7 LM* 02 28 15.634 +00 40 26.78     23.91     M8V 6 0
21 SDSS J023044.46-001259.3 * 02 30 44.45 -00 12 59.4           M9 2 0
22 SDSS J023311.06-002330.7 LM* 02 33 11.1181728432 -00 23 31.588952856           M7V 5 0
23 2MASS J02354756-0849198 BD* 02 35 47.5675491000 -08 49 19.798884768           L2.0:V 15 0
24 2MASS J02361794+0048548 BD* 02 36 17.94024 +00 48 54.8208           L6V 24 0
25 2MASS J02495833-0034099 LM* 02 49 58.3453010760 -00 34 09.973006068           M9V 8 0
26 2MASS J02512220+2521236 LM* 02 51 22.2202448808 +25 21 23.558424192           M9V 9 0
27 2MASS J02560189+0110467 BD* 02 56 01.89192 +01 10 46.7112           L0V 10 0
28 2MASS J03095345-0753156 * 03 09 53.4991277976 -07 53 15.258746976           M9 2 0
29 2MASS J03281738+0032572 BD* 03 28 17.42760 +00 32 57.2172           L2.5:V 15 0
30 2MASS J03303511-0025346 BD* 03 30 35.1445125920 -00 25 34.960388420           L2 27 0
31 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1616128256 +25 40 23.239779672         17.36 L0V 136 0
32 2MASS J03504861-0518126 BD* 03 50 48.5954804352 -05 18 13.073942304           L1 7 0
33 2MASS J03572110-0641260 BD* 03 57 21.0993650352 -06 41 25.952491032           L0 11 0
34 2MASSI J0423485-041403 BD* 04 23 48.5763811987 -04 14 03.246502948           L6.5+T2 137 0
35 2MASS J04354898+1537198 LM* 04 35 48.9828572784 +15 37 19.800635844           M6e 6 0
36 2MASSI J0443376+000205 LM* 04 43 37.6085840376 +00 02 05.106068520     19.6   15.877 M9.0V 72 0
37 Ross 47 BY* 05 42 09.2676872099 +12 29 21.604835564 14.264 13.130 11.509 10.298 8.709 M4V 304 0
38 Ross 59 SB* 05 53 14.0556053064 +24 15 31.757851750   12.303 10.819 10.367 8.72 M2V 60 0
39 2MASS J05591914-1404488 BD* 05 59 19.1872549354 -14 04 49.206913185           T4.5 159 0
40 2MASS J06262121+0029341 BD* 06 26 21.2192206632 +00 29 34.058727924           L0.3V 6 0
41 HD 265866 PM* 06 54 48.9580633365 +33 16 05.438282419   11.47   9.650   M3V 277 0
42 BD+33 1505 PM* 07 19 31.2746924218 +32 49 48.339033877   10.58   9.513   M0V 109 0
43 2MASS J07475631+3947329 BD* 07 47 56.3293622184 +39 47 32.736659640           L0V 12 0
44 2MASS J07525942+4136344 BD* 07 52 59.42905 +41 36 34.4916           L0 8 0
45 2MASS J08004815+4658256 BD* 08 00 48.1523976288 +46 58 25.570790940           L1.3V 10 0
46 2MASSW J0801405+462850 BD* 08 01 40.56240 +46 28 49.8396           L6.5V 23 0
47 2MASS J08053189+4812330 BD* 08 05 31.8496436040 +48 12 33.131831320           L4+T5 51 0
48 2MASS J08155674+4524119 BD* 08 15 56.74799 +45 24 11.9269           L1V 7 0
49 2MASS J08300825+4828482 BD* 08 30 08.1496038211 +48 28 47.538657498           L9.5 53 0
50 2MASS J08503593+1057156 BD* 08 50 35.93400 +10 57 15.6168       22.466 20.349 L6.5+L8.5 85 0
51 2MASS J08575849+5708514 BD* 08 57 58.4721442289 +57 08 51.414025854           L7V 57 0
52 2MASS J09275741+6027464 BD* 09 27 57.4377734184 +60 27 46.371284028           L0 9 0
53 2MASS J10210969-0304197 BD* 10 21 09.69240 -03 04 19.7904           T1+T4 79 0
54 2MASS J10452400-0149576 BD* 10 45 23.9815317869 -01 49 57.762869076       18.797 16.509 L1 51 0
55 LP 213-68 ** 10 47 13.7778721616 +40 26 49.263789176   21.2   19.1   M8+L0 42 0
56 LSPM J1048+0111 BD* 10 48 42.8144208091 +01 11 58.221081965       19.4   L1 64 0
57 2MASS J10501247+0058032 LM* 10 50 12.3818260800 +00 58 02.806931244           M9V 9 0
58 SIPS J1058-1548 BD* 10 58 47.8366017792 -15 48 17.250428304       20.095 17.764 L3V 111 2
59 L 1258-40 PM* 11 02 18.0359331912 +16 30 33.445769760       11.11   M0V 41 0
60 2MASS J11131694-0002467 BD* 11 13 16.9460687592 -00 02 46.705499664           L0 15 0
61 LSPM J1134+0022 LM* 11 34 54.9346342376 +00 22 54.118688680       18.8   M9V 17 0
62 2MASS J11383308+6740403 BD* 11 38 33.0945405024 +67 40 40.281932460           L0 10 0
63 2MASS J11480423+0254057 BD* 11 48 04.23768 +02 54 05.7204           L0e 11 0
64 2MASS J11480502+0203509 BD* 11 48 05.0181157240 +02 03 51.089153155           L1 11 0
65 DENIS J115938.4+005727 BD* 11 59 38.4904404552 +00 57 26.708696496         17.411 L0.4V 32 0
66 SDSS J120747.17+024424.8 BD* 12 07 47.17392 +02 44 24.9288           L6.5+T2.5 73 0
67 2MASS J12285538+0050440 LM* 12 28 55.3843945152 +00 50 43.974901644           M8V 11 0
68 2MASS J12545393-0122474 BD* 12 54 53.9040607346 -01 22 47.399401142           T2e: 167 0
69 2MASS J12573726-0113360 BD* 12 57 37.26024 -01 13 36.2604           L5V 18 0
70 NAME Kelu-1 BD* 13 05 40.1642434199 -25 41 05.712165150         16.85 L2+L3.5 267 0
71 2MASS J13314894-0116500 BD* 13 31 48.9202570553 -01 16 51.118063680           L6V 46 0
72 2MASS J13422841-0027055 BD* 13 42 28.4016210624 -00 27 05.504034312           L0 10 0
73 2MASS J14023175+0148301 BD* 14 02 31.7693132880 +01 48 30.223543212           L1 12 0
74 2MASS J14044167+0235501 BD* 14 04 41.6773289520 +02 35 50.244148608           L1 12 0
75 2MASS J14132149+0016374 LM* 14 13 21.49392 +00 16 37.3584           M8V 6 0
76 SDSS J141333.88+515417.1 LM* 14 13 33.8733274560 +51 54 17.161595208           M9 4 0
77 2MASS J14305589+0013523 LM* 14 30 55.9119828024 +00 13 51.703939344           M9V 12 0
78 2MASS J14351720-0046130 BD* 14 35 17.2204291296 -00 46 12.961088688           L0 13 1
79 2MASS J14353572-0043471 BD* 14 35 35.72880 -00 43 47.1000           L2V 16 0
80 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 145 0
81 2MASS J14393343+0317591 BD* 14 39 33.43536 +03 17 59.1360           L0.7V 9 0
82 2MASS J14401622+0026390 BD* 14 40 16.1982584568 +00 26 39.334871688           L3V 10 0
83 2MASS J14405060+0051523 LM* 14 40 50.6057453376 +00 51 52.222130928           M9 3 0
84 2MASS J14460061+0024519 BD* 14 46 00.61560 +00 24 51.9660           L5V 38 0
85 2MASS J15024082+6138158 BD* 15 02 40.80432 +61 38 15.4932           L1V 6 0
86 2MASSW J1506544+132106 BD* 15 06 54.3299045806 +13 21 06.039351151           L3 116 0
87 2MASSW J1507476-162738 BD* 15 07 47.6758255542 -16 27 40.113982846     22.136 18.928 16.579 L5V 216 0
88 2MASS J15472723+0336361 BD* 15 47 27.2371368600 +03 36 36.189783252           L2 11 0
89 2MASS J15552614+0017204 BD* 15 55 26.1448873632 +00 17 20.452731144           L0 10 0
90 2MASS J16142048+0046434 BD* 16 14 20.48326 +00 46 43.4603           L2 7 1
91 2MASS J16192830+0050118 BD* 16 19 28.3072188144 +00 50 11.665434732           L1.3V 23 1
92 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 162 0
93 2MASS J16304999+0051010 BD* 16 30 49.99346 +00 51 01.0584           L2 9 0
94 2MASS J16322911+1904407 BD* 16 32 29.11416 +19 04 40.7136       22.42 19.98 L8V 145 0
95 2MASS J16352134+0008242 LM* 16 35 21.3406635600 +00 08 24.116151912           M9V 5 0
96 2MASS J16482107-0012270 PM* 16 48 21.0709422000 -00 12 26.939764836           M9 4 0
97 2MASS J16532970+6231364 BD* 16 53 29.6824499760 +62 31 36.442664760           L1.5 16 0
98 LSPM J1707+6439 PM* 17 07 18.3079222344 +64 39 33.182952120   21.7   18.8   M9V 36 0
99 2MASS J17142843+6351303 LM* 17 14 28.43 +63 51 30.0           M9 3 0
100 2MASS J17161280+5537547 * 17 16 12.8102445912 +55 37 54.859400688           M9 2 0
101 2MASS J17171408+6526221 BD* 17 17 14.0648752296 +65 26 22.283818044           L6.2V 20 0
102 2MASS J17191376+6053107 LM* 17 19 13.7576016528 +60 53 10.513066056           M8V 6 0
103 2MASS J17224432+6329470 BD* 17 22 44.3205999672 +63 29 46.779899964           L0.7V 11 0
104 2MASS J17231750+6321187 LM* 17 23 17.5258124856 +63 21 19.085315364           M9 4 0
105 2MASS J17282217+5845095 BD* 17 28 22.17384 +58 45 09.5040           L1V 7 0
106 2MASS J17341753+5355207 LM* 17 34 17.5171506864 +53 55 20.730963576           M9V 5 0
107 2MASS J17374982+5616599 LM* 17 37 49.85 +56 17 00.0           M9 3 0
108 2MASS J17421685+5611081 LM* 17 42 16.85400 +56 11 08.0592           M9V 5 0
109 2MASS J20282035+0052265 BD* 20 28 20.3489639184 +00 52 26.588682516           L2.5 43 0
110 2MASS J21404654+0112594 BD* 21 40 46.54198 +01 12 59.4143           L4.4V 13 0
111 2MASS J21472764+0101039 LM* 21 47 27.6398718984 +01 01 03.973261080           M9V 12 1
112 2MASS J22044198-0036512 LM* 22 04 41.9823609264 -00 36 51.318790308           M8V 9 1
113 2MASS J22304238+0111502 LM* 22 30 42.3764222472 +01 11 50.269280136           M9 9 0
114 2MASS J22443986-0029390 LM* 22 44 39.8690788728 -00 29 39.060458592           M9 4 0
115 2MASS J22495345+0044046 BD* 22 49 53.45592 +00 44 04.6608           L3+L5 49 0
116 2MASS J22591388-0051581 BD* 22 59 13.88904 -00 51 58.1652           L1.6V 8 0

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