284 citations · 6.1k across the 137 of their papers we have counts for
5 papers · 2 filters
Indications of a Large Fraction of Spectroscopic Binaries Among Nuclei of Planetary Nebulae
Orsola De Marco, Howard E. Bond, Dianne Harmer +1
Previous work indicates that about 10% of planetary-nebula nuclei (PNNi) are photometrically variable short-period binaries with periods of hours to a few days. These systems have…
A Chandra LETGS observation of V4743 Sagittarius: A Super Soft X-ray Source and a Violently Variable Light Curve
J. -U. Ness, S. Starrfield, V. Burwitz +13
V4743 Sgr (Nova Sgr 2002 No. 3) was discovered on 20 September 2002. We obtained a 5ks ACIS-S spectrum in November 2002 and found that the nova was faint in X-rays. We then obtaine…
Cyclical period changes in the dwarf novae V2051 Oph and V4140 Sgr
R. Baptista, B. W. Borges, H. E. Bond +3
We report the identification of cyclical changes in the orbital period of the eclipsing dwarf novae V2051 Ophiuchi and V4140 Sagitarii. We used sets of white dwarf mid-eclipse timi…
An energetic stellar outburst accompanied by circumstellar light echoes
Howard E. Bond, Arne Henden, Zoltan G. Levay +6
Some classes of stars, including supernovae and novae, undergo explosive outbursts that eject stellar material into space. In 2002, the previously unknown variable star V838 Monoce…
The Early Ultraviolet Evolution of the ONeMg Nova V382 Velorum 1999
S. N. Shore, G. Schwarz, H. E. Bond +7
We present a multiwavelength study of the ONeMg Galactic nova V382 Velorum 1999 using HST/STIS and FUSE ultraviolet spectra and comparisons with published groundbased optical spect…