2012MNRAS.425.3137U

Query : 2012MNRAS.425.3137U

2012MNRAS.425.3137U - Mon. Not. R. Astron. Soc., 425, 3137-3161 (2012/October-1)

Grain growth signatures in the protoplanetary discs of Chamaeleon and Lupus.

UBACH C., MADDISON S.T., WRIGHT C.M., WILNER D.J., LOMMEN D.J.P. and KORIBALSKI B.

Abstract (from CDS):

We present Australia Telescope Compact Array results of a 3 and 7 mm continuum survey of 20 T Tauri stars in the Chamaeleon and Lupus star-forming regions. This survey aims to identify protoplanetary discs with signs of grain growth. We detected 90 per cent of the sources at 3 and 7 mm, and determined the spectral slopes, dust opacity indices and dust disc masses. We also present temporal monitoring results of a small subset of sources at 7, 15 mm and 3+6 cm to investigate grain growth to centimetre (cm) sizes and constrain emission mechanisms in these sources. Additionally, we investigated the potential correlation between grain growth signatures in the infrared (10 µm silicate feature) and millimetre (1-3 mm spectral slope, α).

Abstract Copyright: © 2012 The Authors Monthly Notices of the Royal Astronomical Society 2012 RAS

Journal keyword(s): radiation mechanisms: thermal - protoplanetary discs - stars: variables: T Tauri - Herbig Ae/Be - radio continuum: planetary systems

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 2

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Number of rows : 2
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 NAME Chamaeleon Region SFR 11 55 -78.0           ~ 887 0
2 NAME Lupus Complex SFR 16 03 -38.1           ~ 851 0

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