2015ApJ...807L..13W

Query : 2015ApJ...807L..13W

2015ApJ...807L..13W - Astrophys. J., 807, L13 (2015/July-1)

New extinction and mass estimates of the low-mass companion 1RXS 1609 b with the Magellan AO system: evidence of an inclined dust disk.

WU Y.-L., CLOSE L.M., MALES J.R., BARMAN T.S., MORZINSKI K.M., FOLLETTE K.B., BAILEY V.P., RODIGAS T.J., HINZ P., PUGLISI A., XOMPERO M. and BRIGUGLIO R.

Abstract (from CDS):

We used the Magellan adaptive optics system to image the 11 Myr substellar companion 1RXS 1609 B at the bluest wavelengths to date (z' and Ys). Comparison with synthetic spectra yields a higher temperature than previous studies of and significant dust extinction of mag. Mass estimates based on the DUSTY tracks gives 0.012-0.015, making the companion likely a low-mass brown dwarf surrounded by a dusty disk. Our study suggests that 1RXS 1609 B is one of the ∼25% of Upper Scorpius low-mass members harboring disks, and it may have formed like a star and not a planet out at ∼320 AU.

Abstract Copyright: ∼

Journal keyword(s): brown dwarfs - instrumentation: adaptive optics - planetary systems - planets and satellites: individual: 1RXS 160929.1-210524 B - stars: individual: 1RXS 160929.1-210524 - stars: pre-main sequence

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 V* FW Tau TT* 04 29 29.703744 +26 16 53.06412       15.85   M5.5 143 0
2 V* DH Tau B LM* 04 29 41.66 +26 32 56.5           M9.25 105 1
3 2MASS J05012406-0010452 BD* 05 01 24.0852555792 -00 10 45.591750444           L4gamma 65 0
4 2MASSI J0518461-275645 BD* 05 18 46.1651510160 -27 56 45.713630832           L1.0V 39 0
5 2MASSI J0536199-192039 BD* 05 36 20.0168030088 -19 20 40.151155452           L2 26 0
6 CD-34 6792 PM* 10 32 13.6185546336 -35 37 41.711776068   12.84 11.84     F:wl: 158 0
7 V* CT Cha B LM* 11 04 08.44 -76 27 18.0           M8 56 0
8 TWA 27B BD* 12 07 33.50 -39 32 54.4           L3 321 0
9 V* GQ Lup B LM* 15 49 12.05 -35 39 05.1           M9e 165 1
10 RX J1609.5-2105 Or* 16 09 30.3075290712 -21 04 58.943800992   14.21 12.77 12.25 10.99 M0.0e 103 0
11 RX J1609.5-2105B LM* 16 09 30.377 -21 04 56.97           ~ 123 0
12 NAME Upper Sco Association As* 16 12 -23.4           ~ 1586 1
13 NAME GSC 06214-00210B LM* 16 21 54.678 -20 43 11.33           ~ 102 0
14 ROXs 12B BD* 16 26 28.05 -25 26 46.0           L0 34 0
15 2MASSW J2208136+292121 BD* 22 08 13.63056 +29 21 21.5352           L3gamma 62 0
16 HD 218396b Pl 23 07 28.7157209544 +21 08 03.310767492           ~ 323 1

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