2009A&A...503..639T

Query : 2009A&A...503..639T

2009A&A...503..639T - Astronomy and Astrophysics, volume 503639-650 (2009/8-4)

A low-resolution near-infrared spectral library of M-, L-, and T-dwarfs.

TESTI L.

Abstract (from CDS):

We present complete near-infrared (0.85-2.45µm), low-resolution (R∼100) spectra of a sample of 54 disk M-, L-, and T-dwarfs with reliable optical or near infrared spectral-type classification from the literature. The observations were obtained with a prism-based optical element, the Amici device, which provides a complete spectrum of the source on the detector. Our observations indicate that low-resolution near-infrared spectroscopy can be used to determine the spectral classification of late-type field dwarfs in a fast but accurate way. We derive a set of near-infrared spectral indices that are useful to the classification of field dwarfs not seriously affected by reddening. Finally, we show that the comparison of Amici spectra with model atmospheres allows us to obtain a reliable estimate of the dwarf effective temperatures.

Abstract Copyright: ∼

Journal keyword(s): stars: low-mass, brown dwarfs - stars: fundamental parameters - infrared: stars

VizieR on-line data: <Available at CDS (J/A+A/503/639): stars.dat sp/*>

Simbad objects: 56

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Number of rows : 56
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 G 158-50 ** 00 15 28.11090 -16 08 01.6303 14.49 13.187 11.483 10.273 8.711 M4V 142 0
2 2MASSW J0015447+351603 BD* 00 15 44.7745521624 +35 16 02.641954548           L1.0V 49 0
3 PC 0025+0447 BD* 00 27 41.9817343344 +05 03 41.691766608           L1.0 75 0
4 LSPM J0036+1821 BD* 00 36 16.1118891182 +18 21 10.286665966       18.451 16.053 L3.5 230 0
5 RG 0050-2722 LM* 00 52 54.6987655128 -27 05 59.561032272     21.51     M7.5:V 46 0
6 SIPS J0058-0651 BD* 00 58 42.5485933944 -06 51 24.034791564         17.671 L0V 37 0
7 LP 766-89 PM* 01 00 49.1229372985 -19 33 40.441000293     17.86     M5.0 7 0
8 2MASSI J0103320+193536 BD* 01 03 32.03712 +19 35 36.1824           L6V 93 0
9 CTI 012657.5+280202 LM* 01 27 39.1474134816 +28 05 53.372286456           M8.5V 25 0
10 2MASSW J0149090+295613 BD* 01 49 09.0028348631 +29 56 12.511555579           M9.5V 62 0
11 2MASS J02081833+2542533 BD* 02 08 18.3864053730 +25 42 53.199852759           L1V 53 0
12 2MASSW J0208236+273740 BD* 02 08 23.63616 +27 37 40.0872           L5V 19 0
13 V* VX Ari PM* 02 44 15.5097410539 +25 31 24.114854200 13.363 12.141 10.563 9.49 8.115 dM3 249 0
14 2MASSI J0302012+135814 BD* 03 02 01.22520 +13 58 14.2536           L3V 9 0
15 2MASSW J0310599+164816 BD* 03 10 59.86560 +16 48 15.5988           L8V 57 0
16 LP 412-31 LM* 03 20 59.7114769400 +18 54 22.770750621   20.5 18.881 16.904 14.484 M8V 130 0
17 2MASSI J0409095+210439 BD* 04 09 09.5262079320 +21 04 39.128144556           L3V 20 0
18 2MASSI J0415195-093506 BD* 04 15 19.54368 -09 35 06.6732           T8.0 182 0
19 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
20 LP 656-38 PM* 05 01 57.4261317472 -06 56 46.376281497   13.92 12.196 11.791 9.175 M4.0Ve 188 0
21 2MASSI J0727182+171001 BD* 07 27 18.24600 +17 10 01.2072           T7.0 104 0
22 2MASSW J0740096+321203 BD* 07 40 09.66720 +32 12 03.2436           L4.5V 15 0
23 LSPM J0746+2000 BD* 07 46 42.56207 +20 00 32.1839       17.9 15.034 L0+L1.5 201 1
24 2MASSI J0753321+291711 BD* 07 53 32.1505030752 +29 17 11.752093356           L2V 20 0
25 2MASSI J0755480+221218 BD* 07 55 47.95488 +22 12 16.9416           T5.2 37 0
26 2MASSI J0756252+124456 BD* 07 56 25.29120 +12 44 56.0868           L6V 13 0
27 2MASSI J0825196+211552 BD* 08 25 19.6125672818 +21 15 51.549358145       21.97 19.22 L7.5V 138 0
28 2MASSI J0829066+145622 BD* 08 29 06.6330180360 +14 56 22.028955756           L2V 33 0
29 2MASSW J0829570+265510 BD* 08 29 57.07872 +26 55 09.9408           L6.5V 19 0
30 2MASSW J0832045-012835 BD* 08 32 04.5196565736 -01 28 36.042229668           L1.5V 36 0
31 SDSS J083717.21-000018.0 BD* 08 37 17.192664 -00 00 20.67084           T1 57 0
32 LP 666-9 BD* 08 53 36.1604798120 -03 29 32.197505547     18.959 16.781 14.487 M9Ve 274 1
33 2MASSW J0920122+351742 BD* 09 20 12.23664 +35 17 42.9684           L5.5+L9 52 0
34 2MASS J10210969-0304197 BD* 10 21 09.69240 -03 04 19.7904           T1+T4 79 0
35 2MASSI J1029216+162652 BD* 10 29 21.7029071994 +16 26 51.900922557       19.588 17.600 L2.5 43 0
36 2MASSW J1035246+250745 BD* 10 35 24.5190408172 +25 07 44.589716437           L1V 24 0
37 HD 97334B BD* 11 12 25.6353966120 +35 48 12.742807176           L4.5+L6 95 0
38 2MASSW J1239272+551537 BD* 12 39 27.27287 +55 15 37.1630           L5V 47 0
39 2MASSW J1246467+402715 BD* 12 46 46.7805320592 +40 27 15.003066816           L4V 29 0
40 LP 218-8 LM* 12 53 12.4299447040 +40 34 02.691851911   20.1   17.5   M7Ve 49 0
41 2MASS J12545393-0122474 BD* 12 54 53.9040607346 -01 22 47.399401142           T2e: 167 0
42 2MASSW J1411175+393636 BD* 14 11 17.3860488137 +39 36 36.417885266           L1.5V 28 0
43 2MASSW J1412244+163312 BD* 14 12 24.4909341216 +16 33 11.716732440       19.449 17.258 L0.5V 34 0
44 GJ 570 D BD* 14 57 14.96256 -21 21 47.7504           T8 242 1
45 TVLM 513-46 BD* 15 01 08.1864639648 +22 50 02.137869060   21.4 15.09 18.0   M8.5V 189 0
46 TVLM 868-110639 LM* 15 10 16.8245051187 -02 41 08.085982519     20.505 18.035 15.664 M9V 63 1
47 * eta CrB C BD* 15 23 22.63488 +30 14 56.2092           L8V 118 1
48 2MASS J16241436+0029158 BD* 16 24 14.36712 +00 29 15.8172           T6V 162 0
49 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 3969 1
50 LP 759-25 PM* 22 05 35.7339842581 -11 04 28.959853733   18.4   16.4 13.73 M6Ve 35 0
51 2MASSI J2254188+312349 BD* 22 54 18.92016 +31 23 49.8300           T5.0 80 0
52 2MASS J22580659+1544154 LM* 22 58 06.5941363608 +15 44 15.367221096           M7.5V 3 0
53 2MASS J23001886+1210238 LM* 23 00 18.8756204424 +12 10 23.712734460           M4.5V 4 0
54 2MASS J23082871+1309271 LM* 23 08 28.7086193400 +13 09 27.146982924           M6V 2 0
55 2MASSI J2339101+135230 BD* 23 39 10.25160 +13 52 28.4772           T5.4 32 0
56 2MASSI J2356547-155310 BD* 23 56 54.77040 -15 53 11.1336           T5.8 48 0

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