2005A&A...439..205C

Query : 2005A&A...439..205C

2005A&A...439..205C - Astronomy and Astrophysics, volume 439205-211 (2005/8-3)

Classical novae in outburst: evolution of the ultraviolet emission lines in CO novae.

CASSATELLA A., ALTAMORE A. and GONZALEZ-RIESTRA R.

Abstract (from CDS):

A comparative study is made of the temporal changes of the ionization level in seven CO novae well monitored with the IUE satellite at low resolution. The investigation is based on the evolution of the fluxes in eight strong ultraviolet emission lines covering a wide range of ionization potentials, from MgII (7.6eV) to NV (77.5eV). We find that the rate of increase of the ionization conditions in the emitting regions is uniform in the sample of novae considered, provided the time scale is normalized to the optical decay time t3. The implications of this result for the nova ejected masses and for the nuclear turnoff time are discussed.

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Journal keyword(s): stars: novae, cataclysmic variables - techniques: image processing - ultraviolet: stars - methods: data analysis

Simbad objects: 11

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Number of rows : 11
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 LMCN 1991-04a No* 05 03 44.96 -70 18 13.5           ~ 62 0
3 LMCN 1992-11a No? 05 19 19.82 -68 54 35.0           ~ 29 0
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 LMCN 1988-03a No* 05 35 29.53 -70 21 30.9           ~ 51 0
6 NAME Virgo Cluster ClG 12 30 47.8 +12 23 07           ~ 7107 0
7 V* DQ Her CV* 18 07 30.2510391864 +45 51 32.564791872   14.605 14.443 14.800   M3+Ve 1048 1
8 V* PW Vul CV* 19 26 05.0526411168 +27 21 58.133941164           ~ 207 0
9 V* V1668 Cyg No* 21 42 35.3128941397 +44 01 54.435904913           ~ 233 0
10 V* OS And No* 23 12 05.76 +47 28 19.7           ~ 112 0
11 V* V705 Cas No* 23 41 47.2354174125 +57 31 00.826200729       16.055   ~ 207 0

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