2001A&A...378..487M


Query : 2001A&A...378..487M

2001A&A...378..487M - Astronomy and Astrophysics, volume 378, 487-494 (2001/11-1)

Detailed optical behavior of the 2000 outburst of the eclipsing recurrent nova CI Aquilae.

MATSUMOTO K., UEMURA M., KATO T., KIYOTA S., AYANI K., KAWABATA T., KRAL L., HAVLIK T., KOLASA M., NOVAK R. and MASI G.

Abstract (from CDS):

The 2000 outburst of the recurrent nova CI Aql was followed by optical photometry and spectroscopy. Our time-resolved photometry revealed its intraday variations during the outburst. The orbital modulation of the light curve appeared after entering the plateau stage. We found that primary eclipses were ∼0.6mag in depth, but the profile of the eclipse was significantly different from that in the quiescent phase. The folded orbital light curve was represented by a wide wing of a primary eclipse and it suggests the existence of the accretion disk at the plateau stage. In this outburst, we obtained accurate determination of several minima of primary eclipses, and found that the timings of minima showed a substantial delay compared to the previously reported ephemeris. However, no significant evidence of a change in the orbital period was observed since the discovery of the eclipsing nature of this object. We examined the evolution of optical spectra through the outburst, which reconfirmed the nova nature of this object. A spectrum taken on 2000 October 10 showed the Hα in emission and indicated that the object had not yet reached quiescence. The overall light curve and late-stage spectroscopy have revealed that the plateau is the longest one among recurrent novae.

Abstract Copyright:

Journal keyword(s): accretion: accretion disks - stars: binaries: eclipsing - stars: individual: CI Aql - stars: novae, cataclysmic variables

Simbad objects: 14

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Number of rows : 14
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 2E 0035.4-7229 XB* 00 37 19.0 -72 14 14   20.0 20.2     ~ 99 0
2 HD 17647 ** 02 51 39.5613181420 +45 58 45.793504436   9.38   8.3   G5 69 0
3 RX J0537.6-7033 XB* 05 37 43.0 -70 34 15           ~ 31 0
4 V* T Pyx CV* 09 04 41.5061511720 -32 22 47.502932700           ~ 402 0
5 V* U Sco CV* 16 22 30.7791646104 -17 52 43.166822628           F8+K2 495 0
6 TYC 5114-273-1 * 18 51 25.8572714280 -01 39 47.098028232   12.10 10.40     ~ 2 0
7 HD 174647 PM* 18 51 33.3197396424 -01 33 09.864670104   9.59 8.89     G2V 12 0
8 GSC 05114-00584 * 18 51 48.4699657056 -01 28 15.798993060           ~ 2 0
9 UCAC4 443-085347 CV* 18 52 03.5647256952 -01 28 39.190318140       13.373   ~ 151 0
10 TYC 5114-149-1 * 18 52 10.4703322320 -01 27 27.534384540   12.70 11.96     ~ 2 0
11 * 58 Aql * 19 54 44.7948526968 +00 16 25.050363384   5.703 5.631     B9IV 202 0
12 USNO-A2.0 0825-13285694 * ~ ~   15.8       ~ 1 0
13 GSC 05114-00540 * ~ ~           ~ 1 0
14 USNO-A1.0 0825-01325694 * ~ ~           ~ 1 0

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2022.05.29-00:48:38

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