Query : 2008A&A...479..529K

2008A&A...479..529K - Astronomy and Astrophysics, volume 479, 529-531 (2008/2-4)

Symbiotic star LL Cassiopeiae.


Abstract (from CDS):

Study of the spectral and photometric properties of the symbiotic star LL Cas. Spectroscopy and photometry. Spectral and photometric observations of LL Cas were performed in 1986-2006. LL Cas displays a late-type spectrum with TiO absorbtion bands and emission lines of HeII, [OIII], HeI and HI. Significant fluctuations of relative intensities of [OIII], 5007Å and HeII, 4686Å are revealed. They reflect the changes of the field of radiation of the ionizing source. Wavelike variations of the star's light with amplitudes of about 2-3.5mag are found in the B, V and R bands. They can be ascribed to the pulsations of the cool giant.

Abstract Copyright:

Journal keyword(s): stars: binaries: symbiotic

VizieR on-line data: <Available at CDS (J/A+A/479/529): table1.dat table2.dat table3.dat>

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
1 PN Th 4-4 Sy* 17 50 23.8217431800 -19 53 43.180088784   17.5   15.63 13.21 M4/6e 39 1
2 V* LL Cas Mi* 23 09 20.1645569592 +54 44 50.045781480       12.51   M2:e 31 2

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