Publications (2)0 Total impact
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Article: BZ Cam during its 1999/2000 optical low state
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ABSTRACT: We report optical observations of the VY Scl star BZ Cam during its previous optical low state in 1999/2000. We find drastic variations in the line profiles. Narrow-band imaging observations show that its nebula extends farther than previously known and seems to be composed of two components. We determine the [OIII] line intensity of BZ Cam's nebula to 4.8 * 10^-13 erg/cm^2/s. We discover a proper motion of BZ Cam of 25+-2 mas/yr which together with the systemic radial velocity yields a space velocity of 125 km/s. We re-interpret the nebula as being photo-ionized by hypothesized transient, luminous, supersoft X-ray emission during optical low states, and shaped by the transverse motion of BZ Cam. Comment: 8 pages with aa.sty, 8 figures, to appear in A&A07/2001; -
Article: BZ Camelopardalis during its 1999/2000 optical low state
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ABSTRACT: We report optical observations of the VY Scl star BZ Cam during its previous optical low state in 1999/2000. We find drastic variations in the line profiles. Narrow-band imaging observations show that its nebula extends farther than previously known and seems to be composed of two components. We determine the [ OIII] line intensity of BZ Cam's nebula to $4.8 \times 10^{-13}$ erg/cm$^2$/s. We discover a proper motion of BZ Cam of $25 \pm 2$ mas/yr which together with the systemic radial velocity yields a space velocity of 125 km s$^{-1}$. We re-interpret the nebula as being photo-ionized by hypothesized transient, luminous, supersoft X-ray emission during optical low states, and shaped by the transverse motion of BZ Cam.http://dx.doi.org/10.1051/0004-6361:20011048.
