5 citations · 5 across the 2 of their papers we have counts for
5 papers
Two Luminous Post-AGB Stars in the Galactic Globular Cluster M19
Howard E. Bond, Brian D. Davis, Michael H. Siegel +1
We report the discovery of a luminous "yellow" post-asymptotic-giant-branch (PAGB) star in the globular cluster (GC) M19 (NGC 6273), identified during our uBVI survey of Galactic G…
Hubble Space Telescope Spectroscopy of a Planetary Nebula in an M31 Open Cluster: Hot-Bottom Burning at
Brian D. Davis, Howard E. Bond, Robin Ciardullo +1
We use imaging and spectroscopy from the Hubble Space Telescope (HST) to examine the properties of a bright planetary nebula (PN) projected within M31's young open cluster B477-D07…
The True Luminosities of Planetary Nebulae in M31's Bulge: Massive Central Stars from an Old Stellar Population
Brian D. Davis, Robin Ciardullo, George H. Jacoby +2
We measure the Balmer decrements of 23 of the brightest planetary nebulae (PNe) in the inner bulge ( arcmin) of M31 and de-redden the bright end of the region's [O II…
The Planetary Nebula Luminosity Function (PNLF): Contamination from Supernova Remnants
Brian D. Davis, Robin Ciardullo, John J. Feldmeier +1
The planetary nebula luminosity function (PNLF) has been used as an extragalactic distance indicator since the 1980's, but there are still unsolved problems associated with its use…
The Recurrent Nova Candidate M31N 1966-08a = 1968-10c is a Galactic Flare Star
A. W. Shafter, M. Henze, M. J. Darnley +3
A spectrum of the quiescent counterpart of the Recurrent Nova candidate M31N 1966-08a (= M31N 1968-10c) obtained with LRS2 on the Hobby-Eberly Telescope reveals the object to be a…