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Infrared space observatory short wavelength spectrometer observations of V1425 Aquilae (Nova Aquila 1995)

Lyke, JE; Gehrz, RD; Woodward, CE; Barlow, MJ; Pequignot, D; Salama, A; Schwarz, GJ; ... Williams, RE; + view all (2001) Infrared space observatory short wavelength spectrometer observations of V1425 Aquilae (Nova Aquila 1995). Astronomical Journal , 122 (6) pp. 3305-3312. 10.1086/324100. Green open access

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Abstract

We present observations of the classical nova V1425 Aquilae (Nova Aquila 1995) with the Infrared Space Observatory's (ISO) Short Wavelength Spectrometer, the Isaac Newton Telescope's Intermediate Dispersion Spectrograph, and the International Ultraviolet Explorer's Short-Wavelength Primary Spectrograph. Analysis of He II (1640 Å) development constrains the white dwarf turnoff to ~400 days after outburst. Photoionization modeling of the optical and ISO spectra obtained during the late nebular phase constrains the mass of the ejecta between 2.5–4.2 × 10-5 M⊙. This modeling also suggests C and O in the ejecta were enhanced by a factor of ~9, and N was enhanced by a factor of ~100 with respect to solar, while Ne was only slightly enhanced. Based upon these analyses, we determine that the white dwarf in the V1425 Aql system has a CO composition and is at a distance of 3.0 ± 0.4 kpc.

Type: Article
Title: Infrared space observatory short wavelength spectrometer observations of V1425 Aquilae (Nova Aquila 1995)
Open access status: An open access version is available from UCL Discovery
DOI: 10.1086/324100
Publisher version: https://doi.org/10.1086/3241009
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10095238
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