2009ApJ...704.1676K

Query : 2009ApJ...704.1676K

2009ApJ...704.1676K - Astrophys. J., 704, 1676-1688 (2009/October-3)

A universal decline law of classical novae. IV. V838 Her (1991): a very massive white dwarf.

KATO M., HACHISU I. and CASSATELLA A.

Abstract (from CDS):

We present a unified model of optical and ultraviolet (UV) light curves for one of the fastest classical novae, V838 Herculis (Nova Herculis 1991), and estimate its white dwarf (WD) mass. Based on an optically thick wind theory of nova outbursts, we model the optical light curves with free-free emission and the UV 1455 Å light curves with blackbody emission. Our models of 1.35±0.02 M☉ WD simultaneously reproduce the optical and UV 1455 Å observations. The mass lost by the wind is ΔMwind∼ 2x10–6 M☉. We provide new determinations of the reddening, E(B - V) = 0.53 ±0.05, and of the distance, 2.7±0.5 kpc.

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Journal keyword(s): novae, cataclysmic variables - stars: individual: V838 Herculis - stars: mass loss - ultraviolet: stars - white dwarfs

Simbad objects: 13

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Number of rows : 13
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 V* V723 Cas No* 01 05 05.3607320352 +54 00 40.238720388   15.817 15.484 15.044   ~ 216 0
2 LMCN 1991-04a No* 05 03 44.96 -70 18 13.5           ~ 62 0
3 V* V351 Pup No* 08 11 38.3931386664 -35 07 30.288675216           ~ 128 0
4 V* V382 Vel No* 10 44 48.3975221712 -52 25 31.168268472   15.945 15.737 16.173   ~ 201 0
5 V* GQ Mus No* 11 52 02.4296561952 -67 12 20.986391520           ~ 271 0
6 V* RS Oph Sy* 17 50 13.1591484960 -06 42 28.480729788   11.884 10.776 11.228   K5.5/M0IIIe 1163 0
7 V* V693 CrA No* 18 41 57.8 -37 31 14           ~ 125 0
8 V* V838 Her No* 18 46 31.4714863335 +12 14 02.104189516           ~ 304 0
9 V* QU Vul No* 20 26 46.0200167016 +27 50 43.163406959           ~ 277 0
10 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 597 0
11 V* V1500 Cyg No* 21 11 36.5809818696 +48 09 01.952490204           ~ 820 0
12 V* V1668 Cyg No* 21 42 35.3128941397 +44 01 54.435904913           ~ 233 0
13 V* OS And No* 23 12 05.76 +47 28 19.7           ~ 112 0

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