On the effect of emission lines on the UBVR photometry
arXiv:0704.3856 · doi:10.1016/j.newast.2007.04.003
Abstract
We investigate the effect on the U, B, V, Rc and Rj magnitudes of the removal of emission lines from a spectrum. We determined "Dm" corrections from the ratio of fluxes with and without emission lines, transmitted from the object through the photometric filter. An exact and a simplified approach for operative use were applied. The effect was demonstrated for classical symbiotic stars, symbiotic novae and the classical nova V1974 Cyg. It was found that about 20-30, 30-40, 10 and 26/20 percents of the observed flux in the U, B, V and Rc/Rj filter, respectively, is radiated in the emission lines of the investigated classical symbiotic stars. The largest effect was found for symbiotic novae (RR Tel and V1016 Cyg) and the classical nova V1974 Cyg at 210 days (in average of 74, 79, 56 and 66/60 percents). Examples for practical application are suggested.
arXiv comment8 pages, 6 figures, 2 tables, New Astron. in press
References in corpus (7)
- The NextGen Model Atmosphere grid: II. Spherically symmetric model atmospheres for giant stars with effective temperatures between 3000 and 6800~K
- Disentangling the composite continuum of symbiotic binaries I. S-type systems
- The Hydrogen Burning Turn-off of RS Ophiuchi 2006
- Broad H-alpha wings from the optically thin stellar wind of the hot components in symbiotic binaries
- Modeling RR Tel through the Evolution of the Spectra
- Fe VII lines in the spectrum of RR Telescopii
- The effect of dust obscuration in RR Tel on optical and IR long-term photometry and Fe II emission lines
Cited by in corpus (19)
- The UBV Color Evolution of Classical Novae. I. Nova-Giant Sequence in the Color-Color Diagram
- Transient jets in the symbiotic prototype Z Andromedae
- Recent photometry of symbiotic stars - XII
- Forbidden and intercombination lines of RR Telescopii: wavelength measurements and energy levels
- Early evolution of the extraordinary Nova Del 2013 (V339 Del)
- The origin of the supersoft X-ray--optical/UV flux anticorrelation in the symbiotic binary AG Draconis
- New outburst of the symbiotic nova AG Peg after 165 years
- Multiwavelength modelling the SED of supersoft X-ray sources. I. The method and examples
- Recent photometry of symbiotic stars - XIII
- Formation of a disk structure in the symbiotic binary AX Per during its 2007-10 precursor-type activity
- AG Pegasi - now a classical symbiotic star in outburst?
- The path to Z And-type outbursts: The case of V426 Sagittae (HBHA 1704-05)
- Multiwavelength modeling the SED of nova V339~Del: Stopping the wind and long-lasting super-Eddington luminosity with dust emission
- Repeated transient jets from a warped disk in the symbiotic prototype Z And: A link to the long-lasting active phase
- Mass-loss rate by the Mira in the symbiotic binary V1016 Cygni from Raman scattering
- Multiwavelength modelling the SED of supersoft X-ray sources III. RS Ophiuchi: The supersoft X-ray phase and beyond
- Notices to investigation of symbiotic binaries V. Physical parameters derived from UBV magnitudes
- The historical light curve of the symbiotic star AG Draconis: intense, magnetically induced cyclic activity
- V1047 Cen: The first Z And-type outburst observed in the classical nova binary