منابع مشابه
Interferometric Observations of V 1663 Aquilae ( Nova Aql 2005 )
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 da...
متن کاملA Far-ultraviolet Study of the Nova-like V794 Aquilae
V794 Aql was observed in a high state with the Hubble Space Telescope Space Telescope Imaging Spectrograph (HST STIS) on 2003 August 28, and with the Far Ultraviolet Spectroscopic Explorer (FUSE ) on 2004May 13. We present here a spectral analysis of the FUSE andHST STIS spectra. For a 0.9M , the best fit is an accretion disk with a mass accretion rate Ṁ 1⁄4 10 8:5 to 10 M yr 1 with an inclinat...
متن کاملX-ray Observations of the Bright Old Nova V603 Aquilae
We report on our Chandra and RXTE observations of the bright old nova, V603 Aql, performed in 2001 April, supplemented by our analysis of archival X-ray data on this object. We find that the RXTE data are contaminated by the Galactic Ridge X-ray emission. After accounting for this effect, we find a high level of aperiodic variability in the RXTE data, at a level consistent with the uncontaminat...
متن کاملCI Aquilae: a recurrent nova with an unusually long plateau phase
We present the results of optical photometry of the recurrent nova CI Aql in later phase of the outburst which occurred in 2000. Our observation revealed that the object reached the quiescent level between 2001 December and 2002 April and therefore that CI Aql is a unique recurrent nova characterized by an extremely long (1.4–1.7 yr) plateau phase. The light curve obtained in the outburst sugge...
متن کاملEarly spectroscopic observations of Nova ( V 1494 ) Aquilae 1999 No . 2 ⋆
Low-and medium resolution spectra of the fast nova, Nova (V1494) Aql 1999 No.2 obtained approximately 6, 7, 19 and 28 days after the maximum brightness are presented and discussed. The spectrum covering the whole optical range at day 6 shows the principal plus diffuse-enhanced spectrum. The presence of strong Fe II multiplets with P-Cyg profiles suggest that V1494 Aql belongs to the " Fe II " c...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1987
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/228.2.329