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


Query : 2001A&A...366..858K

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 - 2022
#notes
1 LMCN 1988-10a No* 05 08 01.07 -68 37 37.5           ~ 37 0
2 OGLE 2016-NOVA-1 No* 05 09 58.40 -71 39 52.7   16.0   17.0 17.38 ~ 72 0
3 V* T Pyx CV* 09 04 41.5061511720 -32 22 47.502932700           ~ 406 0
4 V* T CrB Sy* 15 59 30.1622265912 +25 55 12.613382940   11.516 10.247 9.70   M3IIIe_sh 677 0
5 V* U Sco CV* 16 22 30.7791646104 -17 52 43.166822628           F8+K2 513 0
6 V* V745 Sco Sy* 17 55 22.2260994408 -33 14 58.551839808     17.987   13.353 M2/M6IIIe 214 1
7 V* V394 CrA No* 18 00 26.0346757464 -39 00 34.388605836           ~ 125 0
8 V* V3890 Sgr LP* 18 30 43.2877623168 -24 01 08.944843980     15.944 14.798 12.611 ~ 171 0
9 UCAC4 443-085347 CV* 18 52 03.5647256952 -01 28 39.190318140       13.373   ~ 151 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 335 0

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2022.08.13-21:28:59

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