2006AJ....131.1007B


Query : 2006AJ....131.1007B

2006AJ....131.1007B - Astron. J., 131, 1007-1014 (2006/February-0)

Resolved spectroscopy of M Dwarf/L dwarf binaries. I. DENIS J220002.05-303832.9AB.

BURGASSER A.J. and McELWAIN M.W.

Abstract (from CDS):

We present the discovery of the common proper motion M9+L0 binary DENIS J220002.05-303832.9AB, identified serendipitously with the SpeX near-infrared imager/spectrograph. Spectral types are derived from resolved near-infrared spectroscopy of the well-separated (1".09±0".06) components and comparison to equivalent data for M and L dwarf spectral standards. Physical association is deduced from the angular proximity of the sources, their common proper motion, and their similar spectrophotometric distances (35±2 pc). The estimated distance of this pair implies a projected separation of 38±3 AU, wider than typical separations for other M dwarf/L dwarf binaries but consistent with the maximum separation/total system mass trend previously identified by Burgasser et al. We discuss the DENIS 2200-3038AB system in context with other low-mass binaries and its role in the study of dust formation processes and activity trends across the transition between the M and L dwarf spectral classes.

Abstract Copyright:

Journal keyword(s): Stars: Binaries: Visual - stars: individual (DENIS J220002.05-303832.9) - Stars: Low-Mass, Brown Dwarfs

Status at CDS : All or part of tables of objects could be ingested in SIMBAD; there are some issues with cross-identifications or classifications.

CDS comments: LP 724-37 is a misprint for LP 714-37

Simbad objects: 17

goto Full paper

goto View the references in ADS

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 - 2022
#notes
1 Cl* Melotte 22 KPNO 2 BD* 03 45 43.1616128256 +25 40 23.239779672         17.36 L0V 119 0
2 Cl* Melotte 22 BPL 283 LM* 03 53 23.1548800968 +23 19 20.148390372         18.34 M8 17 0
3 LP 714-37 ** 04 10 48.10248 -12 51 42.1488   18.4   15.0 12.99 M5.5+M8.0+M8.5 24 0
4 NAME Tau-Aur Complex SFR 04 30 +25.0           ~ 1301 0
5 [RRN96] GG Tau Bb TT* 04 32 30.28224 +17 31 30.3024           M6+M7.5 79 1
6 DENIS J055146.0-443412 ** 05 51 46.05 -44 34 12.8           M8.5+L0 16 0
7 2MASS J11011926-7732383 BD* 11 01 19.266 -77 32 38.31       19.4 16.59 ~ 36 1
8 NAME TW Hya Association As* 11 01.9 -34 42           ~ 896 0
9 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1076 1
10 TWA 27 LM* 12 07 33.4675524840 -39 32 54.016625184     19.95 17.99 15.88 M8IVe 325 0
11 LP 271-25 LM* 14 28 43.2275214164 +33 10 39.259309081   21.2   17.8   M9Ve 239 0
12 2MASS J14392836+1929149 BD* 14 39 28.1499428599 +19 29 15.908790370           L1V 121 0
13 VB 10 Er* 19 16 57.6109547886 +05 09 01.600923413     17.30     M8V 462 1
14 SIPS J2200-3038 ** 22 00 02.01888 -30 38 32.7120       19.2 16.7 M9+L0 29 0
15 LAWD 94 WD* 23 54 01.0726392457 -33 16 31.078214643   14.6 13.56     DA5.7 52 0
16 L 577-72 PM* 23 54 01.0827378389 -33 16 24.385440650       13.15 10.84 M4V 28 0
17 APMPM J2354-3316C LM* 23 54 09.2806070800 -33 16 26.761079407         16.00 M8.5Ve 19 0

To bookmark this query, right click on this link: simbad:objects in 2006AJ....131.1007B and select 'bookmark this link' or equivalent in the popup menu


2022.10.02-21:30:39

© Université de Strasbourg/CNRS

    • Contact