2006A&A...449L..13A


Query : 2006A&A...449L..13A

2006A&A...449L..13A - Astronomy and Astrophysics, volume 449, L13-16 (2006/4-2)

First AU-scale observations of V1647 Orionis with VLTI/MIDI.

ABRAHAM P., MOSONI L., HENNING T., KOSPAL A., LEINERT C., QUANZ S.P. and RATZKA T.

Abstract (from CDS):

The young eruptive star V1647Ori was observed with MIDI, the mid-infrared interferometric instrument at the Very Large Telescope Interferometer (VLTI), on March 2, 2005. We present the first spectrally resolved interferometric visibility points for this object. Our results show that (1) the mid-infrared emitting region is extended, having a size of ≃7AU at 10µm; (2) no signatures of a close companion can be seen; (3) the 8-13µm spectrum exhibits no obvious spectral features. Comparison with similar observations of Herbig Ae stars suggests that V1647Ori probably possesses a disk of moderate flaring. A simple disk model with T∼r–0.53, Σ∼r–1.5, Md=0.05M is able to fit both the spectral energy distribution and the observed visibility values simultaneously.

Abstract Copyright:

Journal keyword(s): stars: formation - techniques: interferometric - stars: circumstellar matter - stars: individual: V1647 Ori - infrared: stars

Simbad objects: 13

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Number of rows : 13
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 LDN 1640 DNe 05 33 45 -05 41.0           ~ 33 0
2 * phi02 Ori PM* 05 36 54.3885728561 +09 17 26.416510827 5.70 5.04 4.09 3.33 2.78 G9.5IIIbFe-2.5 350 0
3 NAME Flame Nebula HII 05 41 42.7 -01 54 44           ~ 697 1
4 NAME Ori B MoC 05 41 43.0 -01 54 44           ~ 1280 0
5 V* FU Ori Or* 05 45 22.3647842544 +09 04 12.291320064   10.72 9.60     F0Iab 764 1
6 V* V1647 Ori Or* 05 46 13.1370578472 -00 06 04.885093296     18.1     ~ 257 1
7 NAME McNeil Nebula RNe 05 46 14 -00 05.8           ~ 73 2
8 * tet CMa PM* 06 54 11.3988612864 -12 02 19.061163780 7.20 5.51 4.08 2.95 2.17 K3/4III 213 0
9 V* Z CMa Ae* 07 03 43.1599411656 -11 33 06.209065836 10.51 9.99 8.80     B5/8eq+F5/7 555 3
10 IRAS 16289-4449 Or* 16 32 32.19264 -44 55 30.6552       15.95   ~ 128 1
11 * c Oph Be* 17 31 24.9541340 -23 57 45.513592 4.75 4.81 4.81 4.74 4.72 A0V 264 0
12 HD 179218 Ae* 19 11 11.2538919456 +15 47 15.636008472 7.55 7.476 7.39 7.25 7.21 A0Ve 236 0
13 EM* LkHA 190 Or* 20 58 53.7335347296 +44 15 28.388727720   14.26 12.33 12.13   F7/G3I/IIe 491 0

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2022.08.18-04:43:23

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