2013MNRAS.430.1784L

Query : 2013MNRAS.430.1784L

2013MNRAS.430.1784L - Mon. Not. R. Astron. Soc., 430, 1784-1789 (2013/April-2)

Proper motions of USco T-type candidates.

LODIEU N., IVANOV V.D. and DOBBIE P.D.

Abstract (from CDS):

We present new z- and H-band photometry and proper motion measurements for the five candidate very-low-mass T-type objects we recently proposed to be members of the nearest OB association with the Sun, Upper Scorpius (USco). These new data fail to corroborate our prior conclusions regarding their spectral types and affiliation with the USco population. We conclude that we may be in presence of a turnover in the mass function of USco taking place below 10–4MJup, depending on the age assigned to USco and the models used.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): techniques: photometric - surveys - stars: luminosity function, mass function - infrared: stars

Simbad objects: 16

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Number of rows : 16
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 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
2 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
3 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
4 [BZR99] S Ori 70 BD* 05 38 10.10 -02 36 26.0           T6-7 47 0
5 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 623 0
6 EGGR 76 WD* 11 07 59.9504280373 -05 09 26.034289695 12.397 13.093 13.057 13.141 13.215 DA3 172 0
7 [LHJ2007] J160646.45-223123.8 * 16 06 46.45 -22 31 23.8           ~ 2 0
8 [LHJ2007] J160835.98-222911.1 BD? 16 08 35.98 -22 29 11.1           ~ 2 0
9 [LHJ2007] J160845.73-222953.5 BD? 16 08 45.73 -22 29 53.5           ~ 2 0
10 [LHJ2007] J160847.80-222904.5 BD? 16 08 47.80 -22 29 04.5           ~ 2 0
11 [LHJ2007] J160955.91-223345.7 BD? 16 09 55.91 -22 33 45.7           ~ 2 0
12 [LHJ2007] J161004.76-223230.6 BD? 16 10 04.76 -22 32 30.6           ~ 2 0
13 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
14 NAME Upper Sco-Cen As* 16 15 -24.2           ~ 1497 1
15 NAME rho Oph Cluster Cl* 16 26 22 -24 23.7           ~ 73 0
16 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1

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