2008A&A...483L..13I


Query : 2008A&A...483L..13I

2008A&A...483L..13I - Astronomy and Astrophysics, volume 483, L13-16 (2008/5-4)

Gas and dust in the inner disk of the Herbig Ae star MWC 758.

ISELLA A., TATULLI E., NATTA A. and TESTI L.

Abstract (from CDS):

We investigate the origin of the near-infrared emission of the Herbig Ae star MWC 758 on sub-astronomical unit (AU) scales using spectrally dispersed low resolution (R=35) AMBER/VLTI interferometric observations in the H (1.7µm) and K (2.2µm) bands. We find that the K band visibilities and closure phases are consistent with the presence of a dusty disk inner rim located at the dust evaporation distance (0.4AU) while the bulk of the H band emission arises within 0.1 AU from the central star. Comparing the observational results with theoretical model predictions, we suggest that the H band emission is dominated by an hot gaseous accretion disk.

Abstract Copyright:

Journal keyword(s): accretion, accretion disks - techniques: interferometric - stars: planetary systems: protoplanetary disks

Simbad objects: 3

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Number of rows : 3
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 * 108 Tau * 05 15 27.6546562248 +22 17 05.482783284   6.34 6.27     A2V 36 0
2 HD 36112 Ae* 05 30 27.5285630040 +25 19 57.076288752   8.57 8.27     A8Ve 469 0
3 * c Oph Be* 17 31 24.9538710166 -23 57 45.514802684 4.75 4.81 4.81 4.74 4.72 A0V 273 0

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