2001A&A...366..858K


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.11CET10:29:53

2001A&A...366..858K - Astronomy and Astrophysics, volume 366, 858-864 (2001/2-2)

The 2000 outburst of the recurrent nova CI Aquilae: optical spectroscopy.

KISS L.L., THOMSON J.R., OGLOZA W., FURESZ G. and SZILADI K.

Abstract (from CDS):

We present low- and medium resolution spectra of the recurrent nova CI Aquilae taken at 14 epochs in May and June, 2000. The overall appearance is similar to other U Sco-type recurrent novae (U Sco, V394 CrA). Medium resolution (λ/Δλ≃7000-10000) hydrogen and iron profiles suggest an early expansion velocity of 2000-2500km/s. The Hα evolution is followed from Δt=-0.6d to +53d, starting from a nearly Gaussian shape to a double peaked profile through strong P-Cyg profiles. The interstellar component of the sodium D line and two diffuse interstellar bands put constraints on the interstellar reddening which is estimated to be E(B-V)=0.85±0.3mag. The available visual and CCD-V observations are used to determine t0, t2 and t3. The resulting parameters are: t0=2451669.5±0.1, t2=30±1d, t3=36±1d. The recent lightcurve is found to be generally similar to that observed in 1917 with departures as large as 1-2mag in certain phases. This behaviour is also typical for the U Sco subclass.

Abstract Copyright:

Journal keyword(s): stars: novae - stars: individual: CI Aql

Simbad objects: 10

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Number of rows : 10

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 NOVA LMC 1988 b No* 05 08 01.07 -68 37 37.5           ~ 36 0
2 NOVA LMC 1968 No* 05 09 58.40 -71 39 52.7   16.0   17.0 17.38 ~ 65 0
3 NOVA Pyx 1890 No* 09 04 41.5062068236 -32 22 47.503345173   7.0       ~ 375 1
4 V* T CrB Sy* 15 59 30.1619486506 +25 55 12.607985109 2.69 2.10 2.00     M3III+p 639 0
5 NOVA Sco 1863 No* 16 22 30.7782086963 -17 52 43.162570042   8.80 8.70     F8+K2 458 0
6 V* V745 Sco LP* 17 55 22.2273446574 -33 14 58.558723074     17.987   13.353 ~ 184 0
7 NOVA CrA 1987 No* 18 00 25.97 -39 00 35.1           ~ 122 0
8 V* V3890 Sgr LP* 18 30 43.2881019064 -24 01 08.948570280   13.5 15.944   12.611 ~ 136 0
9 NOVA Aql 1917 No* 18 52 03.5647265171 -01 28 39.191180908           ~ 144 0
10 * zet Aql PM* 19 05 24.6080155 +13 51 48.518212 2.99 3.00 2.99 2.98 2.98 A0IV-Vnn 318 0

    Equat.    Gal    SGal    Ecl

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2019.12.11-10:29:53

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