J/A+A/452/567 Spectra of Nova Scuti 2005 N.2 (V477 Sct) (Munari+, 2006)
BVI photometry and the spectroscopy of Nova Scuti 2005 N.2.
Munari U., Siviero A., Navasardyan H., Dallaporta S.
<Astron. Astrophys. 452, 567 (2006)>
=2006A&A...452..567M 2006A&A...452..567M
ADC_Keywords: Novae ; Spectroscopy
Keywords: stars: novae, cataclysmic variables
Abstract:
Our CCD photometry of Nova Scuti 2005 N.2 (=V477 Sct) shows it to be
a very fast nova, which is characterized by t2=3 and t3=6 days,
affected by a E(B-V)≥1.3mag reddening, and which peaked at V∼9.8mag
on ∼Oct. 12.0 UT. The nova was probably entering a dust condensation
episode or brightness oscillations during the transition phase when
it became unobservable for the seasonal conjunction with the Sun.
Absolute spectrophotometry shows it to belong to the He/N class. The
emission line width at half intensity is 2600km/s. At least five
ripples are identified in the high resolution emission lines profiles
at radial velocities ranging from -980 to +700km/s. The nova erupted
at a large distance from the Sun and at an appreciable height above
the Galactic plane, suggesting an association with the Galactic bulge
(unusual for a He/N nova). The progenitor was too faint to be recorded
on DSS1/2 survey plates, when setting the outburst amplitude to
DeltaV≥11mag.
Objects:
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RA (2000) DE Designation(s)
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18 38 42.93 -12 16 15.6 NOVA Sct 2005 N.2 = V* V477 Sct
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fluxlr.dat 31 1019 3500-7815Å absolute fluxed spectrum
for 2005 Oct 27.7
halpha.dat 28 1019 Continuum normalized spectrum around Halpha
for 2005 Oct 27.7
oi.dat 28 1019 Continuum normalized spectrum around OI/CaII
for 2005 Oct 27.7
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Byte-by-byte Description of file: fluxlr.dat halpha.dat oi.dat
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Bytes Format Units Label Explanations
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1- 16 F16.11 0.1nm Lambda Wavelength
20- 31 E12.7 10mW/m2/nm Flux Flux
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Acknowledgements:
Ulisse Munari, munari(at)pd.astro.it
(End) Patricia Vannier [CDS] 01-Jun-2006