B. F. Lane et al 2005 ApJ 622 L137 doi:10.1086/429619
Interferometric Observations of V838 Monocerotis
FREEB. F. Lane1, A. Retter2, R. R. Thompson3 and J. A. Eisner4
Show affiliationsWe have used long-baseline near-IR interferometry to resolve the peculiar eruptive variable star V838 Mon and to provide the first direct measurement of its angular size. Assuming a uniform disk model for the emission, we derive an apparent angular diameter at the time of observations (2004 November-December) of 1.83 ± 0.06 mas. For a nominal distance of 8 ± 2 kpc, this implies a linear radius of 1570 ± 400 R
. However, the data are somewhat better fitted by elliptical disk or binary component models, and we suggest that the emission may be strongly affected by ejecta from the outburst.
- Subject headings
stars: individual (V838 Monocerotis); techniques: interferometric
- Dates
-
Issue 2 (2005 April 1)
Received 2005 January 12, accepted for publication 2005 February 14
Published 2005 March 4
-
Interferometric Observations of V838 Monocerotis
B. F. Lane et al 2005 ApJ 622 L137
-
Distribution of Circumstellar Disk Masses in the Young Cluster NGC 2024
J. A. Eisner and John M. Carpenter 2003 ApJ 598 1341
-
Massive Protoplanetary Disks in the Trapezium Region
J. A. Eisner and John M. Carpenter 2006 ApJ 641 1162
-
Spatially Resolving the Inner Disk of TW Hydrae
J. A. Eisner et al 2006 ApJ 637 L133
-
Turbulence in the Sub-Alfvénic Solar Wind Driven by Reflection of Low-Frequency Alfvén Waves
A. Verdini et al 2009 ApJ 700 L39
-
Spectrally Dispersed K-Band Interferometric Observations of Herbig Ae/Be Sources: Inner Disk Temperature Profiles
J. A. Eisner et al. 2007 ApJ 657 347
-
Observations of T Tauri Disks at Sub-AU Radii: Implications for Magnetospheric Accretion and Planet Formation
J. A. Eisner et al. 2005 ApJ 623 952
-
Stellar and Molecular Radii of a Mira Star: First Observations with the Keck Interferometer Grism
J. A. Eisner et al 2007 ApJ 654 L77
-
Adaptive Optics Imaging of the AU Microscopii Circumstellar Disk: Evidence for Dynamical Evolution
Stanimir A. Metchev et al. 2005 ApJ 622 451
-
Constraining the Evolutionary Stage of Class I Protostars: Multiwavelength Observations and Modeling
J. A. Eisner et al. 2005 ApJ 635 396