Interferometric Observations of V1663 Aquilae (Nova Aql 2005)

Abstract

We have resolved the classical nova V1663 Aql using long-baseline near-IR interferometry covering the period from 5--18 days after peak brightness. We directly measure the shape and size of the fireball, which we find to be asymmetric. In addition we measure an apparent expansion rate of 0.21 +/- 0.03 mas/day. Assuming a linear expansion model we infer a time of initial outburst approximately 4 days prior to peak brightness. When combined with published spectroscopic expansion velocities our angular expansion rate implies a distance of 8.9 +/- 3.6 kpc. This distance measurement is independent of, but consistent with, determinations made using widely available photometric relations for novae.

6 Pages, Accepted for publication in ApJ

References in corpus (13)

• The USNO-B Catalog
• The Palomar Testbed Interferometer
• Fringe Visibility Estimators for the Palomar Testbed Interferometer
• Near-Infrared Interferometric Measurements of Herbig Ae/Be Stars
• VLTI/AMBER interferometric observations of the recurrent Nova RS Oph 5.5 days after outburst
• The Visual Orbit and Evolutionary State of 12 Bootes
• No Expanding Fireball: Resolving the Recurrent Nova RS Ophiuchi with Infrared Interferometry
• Biases in Expansion Distances of Novae Arising from the Prolate Geometry of Nova Shells
• Stellar and Molecular Radii of a Mira Star: First Observations with the Keck Interferometer Grism
• Interferometric Observations of V838 Monocerotis
• Interferometric Observations of RS Ophiuchi and the Origin of the Near-IR Emission
• V463 Scuti (Nova Sct 2000): Rapidly Evolving Nova with a Prominent Premaximum Halt
• The Evolution of Nova Remnants

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• A Light Curve Analysis of 32 Recent Galactic Novae --- Distances and White Dwarf Masses
• V1369 Cen high resolution panchromatic late nebular spectra in the context of a unified picture for nova ejecta
• Collimation and asymmetry of the hot blast wave from the recurrent nova V745 Scorpii
• Spectro-interferometric observations of classical nova V458 Vul 2007