2013A&A...560A..49S


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST23:26:08

2013A&A...560A..49S - Astronomy and Astrophysics, volume 560A, 49-49 (2013/12-1)

An archive study of 18 old novae. I. The UV spectra.

SELVELLI P. and GILMOZZI R.

Abstract (from CDS):

We present an overview of the UV spectral properties of old novae as a class. The data and results of this paper, together with data from the outburst phases, will be utilized in a follow-up study to determine statistical properties and to investigate correlations among the physical parameters of the quiescent and eruptive phases. All the available IUE, HST, and FUSE archive data for 18 old novae were used to derive accurate and homogeneous estimates of the reddening from the 2175 Å extinction bump and to determine the intrinsic spectral energy distribution corresponding to the utilization of both existing extinction curves. We also measured all the emission and absorption lines. We have found good agreement between spectra taken at different epochs and by different instruments, a clear indication of the near constancy of the SED on timescales of several years. With the possible exception of GK Per, the dereddened UV continua are represented well by a single-curve power-law distribution Fλ∝λ–α, with α in the range 0.32-2.55 for one curve and 0.35-2.88 for the other one. The extrapolation of the various UV power laws to the optical range yields values that are in good agreement with the V magnitudes. We interpret this result as evidence that the SED is dominated by the accretion disk in the UV and optical spectral regions. A detailed study of the emission spectrum has led to measuring and identifying more than one hundred features and to detecting several lines that are rather uncommon in other CVs and whose identification is uncertain.

Abstract Copyright:

Journal keyword(s): novae, cataclysmic variables - ultraviolet: stars - line: identification

VizieR on-line data: <Available at CDS (J/A+A/560/A49): stars.dat table2.dat table3.dat sp/*>

Simbad objects: 22

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Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 V* GK Per No* 03 31 12.0096626899 +43 54 15.467450081   10.2 14.0     K1IV 859 0
2 V* T Aur No* 05 31 59.1179548200 +30 26 45.033734428 4.80 4.49 4.10     ~ 254 1
3 V* RR Pic No* 06 35 36.0633947411 -62 38 24.292758747   12.30 12.502   12.385 ~ 313 0
4 V* BT Mon No* 06 43 47.2416393083 -02 01 13.877487108   4.50 15.4     G8V 154 0
5 V* DN Gem No* 06 54 54.3492892481 +32 08 27.924684752     15.0     ~ 114 0
6 V* GI Mon No* 07 26 47.1066355111 -06 40 29.706608941   5.20       ~ 47 0
7 V* CP Pup No* 08 11 46.0634990913 -35 21 04.986286529   15.0 15.00     ~ 244 1
8 NOVA Pyx 1890 No* 09 04 41.5062068236 -32 22 47.503345173   7.0       ~ 375 1
9 V* X Ser No* 16 19 17.6862905727 -02 29 29.527844354           ~ 58 0
10 V* V841 Oph No* 16 59 30.3745002409 -12 53 27.137639551   5.0       ~ 124 0
11 V* DQ Her No* 18 07 30.2510755201 +45 51 32.564649735   12.99 15.16 11.46   M3+Ve 953 1
12 V* V533 Her No* 18 14 20.4845602013 +41 51 22.070248280           ~ 231 0
13 V* V3890 Sgr LP* 18 30 43.2881019064 -24 01 08.948570280   13.5 15.944   12.611 ~ 121 0
14 V* V603 Aql No* 18 48 54.6369118792 +00 35 02.855110952 10.73 11.65 11.64     OB+e: 507 0
15 V* HR Lyr No* 18 53 25.0563792985 +29 13 37.666397979     15.4     ~ 65 0
16 V* V446 Her No* 18 57 21.5917264330 +13 14 29.319279140           ~ 128 0
17 * P Cyg s*b 20 17 47.2020844 +38 01 58.552724 4.66 5.24 4.82 4.28 4.02 B1-2Ia-0ep 1125 1
18 V* HR Del No* 20 42 20.3467536529 +19 09 39.304605595   12.46 3.70 12.69   ~ 457 0
19 V* Q Cyg No* 21 41 43.9276952364 +42 50 29.039173205           ~ 106 0
20 V* CP Lac No* 22 15 41.1032698353 +55 37 01.322546558           ~ 123 1
21 V* DI Lac No* 22 35 48.4952966889 +52 42 59.640075678   14.89 14.51 14.48   ~ 116 0
22 V* DK Lac No* 22 49 46.9314859439 +53 17 19.799282044   5.00       ~ 102 0

    Equat.    Gal    SGal    Ecl

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2019.10.21-23:26:08

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