2006A&A...459..875E


Query : 2006A&A...459..875E

2006A&A...459..875E - Astronomy and Astrophysics, volume 459, 875-883 (2006/12-1)

Early spectral evolution of Nova Sagittarii 2004 (V5114 Sagittarii).

EDEROCLITE A., MASON E., DELLA VALLE M., GILMOZZI R., WILLIAMS R.E., GERMANY L., SAVIANE I., MATTEUCCI F., SCHAEFER B.E., WALTER F., RUDY R.J., LYNCH D., MAZUK S., VENTURINI C.C., PUETTER R.C., PERRY R.B., LILLER W. and ROTTER A.

Abstract (from CDS):

We present optical and near-infrared spectral evolution of the Galactic nova V5114 Sgr (2004) during few months after the outburst. We use multi-band photometry and line intensities derived from spectroscopy to put constrains on the distance and the physical conditions of the ejecta of V5114 Sgr. The nova showed a fast decline (t2≃11days) and spectral features of FeII spectroscopic class. It reached MV=-8.7±0.2mag at maximum light, from which we derive a distance of 7700±700kpc and a distance from the galactic plane of about 800pc. Hydrogen and oxygen mass of the ejecta are measured from emission lines, leading to ∼10–6 and 10–7M, respectively. We compute the filling factor of the ejecta to be in the range 0.1-10–3. We found the value of the filling factor to decrease with time. The same is also observed in other novae, then giving support to the idea that nova shells are not homogeneously filled in, rather being the material clumped in relatively higher density blobs less affected by the general expanding motion of the ejecta.

Abstract Copyright:

Journal keyword(s): stars: novae, cataclysmic variables - stars: individual: V5114 Sgr

VizieR on-line data: <Available at CDS (J/A+A/459/875): obs.dat sp/* >

Simbad objects: 14

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Number of rows : 14
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 SMCN 2001-10a No* 00 46 27.92 -73 29 45.5           ~ 13 0
2 V* V723 Cas No* 01 05 05.3607320352 +54 00 40.238720388   15.817 15.484 15.044   ~ 191 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6429 1
4 V* GK Per No* 03 31 12.0098863320 +43 54 15.469951212   14.139 13.090 12.589   K1IV 898 0
5 LMCN 2002-02a No* 05 36 46.38 -71 35 34.4           ~ 12 0
6 V* T Pyx CV* 09 04 41.5061511720 -32 22 47.502932700           ~ 408 0
7 V* V382 Vel No* 10 44 48.3975221712 -52 25 31.168268472   15.945 15.737 16.173   ~ 181 0
8 LAWD 37 WD* 11 45 42.9169346379 -64 50 29.461957832 11.08 11.725 11.513 11.34 11.163 DQ 248 0
9 V* DQ Her CV* 18 07 30.2510391864 +45 51 32.564791872   14.605 14.443 14.800   M3+Ve 991 1
10 HD 167665 PM* 18 17 23.7587105112 -28 17 20.218638480   6.94 6.40     F9VFe-0.8CH-0.4 98 1
11 V* V5114 Sgr No* 18 19 32.29 -28 36 35.7           ~ 42 0
12 V* FH Ser No* 18 30 47.0401403328 +02 36 52.029761940           ~ 199 0
13 V* V1974 Cyg No* 20 30 31.6546001712 +52 37 50.837478240           ~ 561 0
14 Feige 110 HS* 23 19 58.3996844256 -05 09 56.171142864 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 603 1

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2022.10.07-02:38:12

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