71 citations · 712 across the 32 of their papers we have counts for
19 papers · 1 filter
Stars stably accreting from substellar objects
Aaron Householder, Kaitlyn Shin, Kevin B. Burdge +11
Substellar objects such as brown dwarfs and planets are generally expected to remain detached from their main-sequence host stars unless orbital decay or stellar expansion brings t…
Appraising the Necklace: A post-common-envelope carbon dwarf inside an apparently carbon-poor planetary nebula
David Jones, Romano L. M. Corradi, Gustavo A. García Pérez +15
Context: The Necklace nebula is a bipolar, post-common-envelope planetary nebula, the central star of which has been shown to have a dwarf carbon star companion. Aims: We aim to un…
The evolutionary history of ultra-compact accreting binaries. I. Chemical abundances and formation channel of the eclipsing AM CVn system ZTF J225237.05-051917.4 from HST spectroscopy
W. Yu, A. F. Pala, T. Kupfer +33
AM Canum Venaticorum (AM CVn) stars are ultra-compact binary systems composed of a white dwarf (WD) primary accreting from a H-deficient donor. They are important as potential prog…
V Sge: Supersoft Source or Exotic Hot Binary? I. An X-Shooter campaign in the high state
Pasi Hakala, Phil Charles, Pablo Rodríguez-Gil
V Sge is a peculiar, highly luminous long-period (12.34h) binary star that can display a super-soft X-ray emitting component when in the faint phase of its V~ 10-13mag variability…
The mass of the white dwarf in YY Dra (=DO Dra): Dynamical measurement and comparative study with X-ray estimates
Ayoze Álvarez-Hernández, Manuel A. P. Torres, Tariq Shahbaz +7
We present a dynamical study of the intermediate polar cataclysmic variable YY Dra based on time-series observations in the band, where the donor star is known to be the major…
A dense star in a 51-minute orbital period eclipsing binary
Kevin B. Burdge, Kareem El-Badry, Thomas R. Marsh +24
In over a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes. One way to ach…
The post-common-envelope binary central star of the planetary nebula Ou 5: a doubly-eclipsing post-red-giant-branch system
David Jones, James Munday, Romano Corradi +10
We present a detailed study of the stellar and orbital parameters of the post-common envelope binary central star of the planetary nebula Ou~5. Low-resolution spectra obtained duri…
The intermediate polar cataclysmic variable GK Persei 120 years after the nova explosion: a first dynamical mass study
A. Álvarez-Hernández, M. A. P. Torres, P. Rodríguez-Gil +15
We present a complete dynamical study of the intermediate polar and dwarf nova cataclysmic variable GK Per (Nova Persei 1901) based on a multi-site optical spectroscopy and -ban…
The post-common-envelope binary central star of the planetary nebula PN G283.7-05.1: A possible post-red-giant-branch planetary nebula central star
David Jones, Henri M. J. Boffin, Jacob Hibbert +8
We present the discovery and characterisation of the post-common-envelope central star system in the planetary nebula PN G283.705.1. Deep images taken as part of the POPIPlaN su…
The planetary nebula IC 4776 and its post-common-envelope binary central star
Paulina Sowicka, David Jones, Romano L. M. Corradi +5
We present a detailed analysis of IC 4776, a planetary nebula displaying a morphology believed to be typical of central star binarity. The nebula is shown to comprise a compact hou…
The double-degenerate, super-Chandrasekhar nucleus of the planetary nebula Henize 2-428
M. Santander-García, P. Rodríguez-Gil, R. L. M. Corradi +5
The planetary nebula (PN) stage is the ultimate fate of stars with mass 1 to 8 solar masses (M). The origin of their complex morphologies is poorly understood, although sev…
Discovery of an eclipsing dwarf nova in the ancient nova shell Te 11
Brent Miszalski, Patrick A. Woudt, Stuart P. Littlefair +8
We report on the discovery of an eclipsing dwarf nova (DN) inside the peculiar, bilobed nebula Te 11. Modelling of high-speed photometry of the eclipse finds the accreting white dw…
The post-common envelope central stars of the planetary nebulae Henize 2-155 and Henize 2-161
David Jones, Henri M. J. Boffin, Pablo Rodríguez-Gil +4
We present a study of Hen 2-155 and Hen 2-161, two planetary nebulae which bear striking morphological similarities to other planetary nebulae known to host close-binary central st…
SALT reveals the barium central star of the planetary nebula Hen 2-39
B. Miszalski, H. M. J Boffin, D. Jones +6
Classical barium stars are binary systems which consist of a late-type giant enriched in carbon and slow neutron capture (s-process) elements and an evolved white dwarf (WD) that i…
The fight for accretion: discovery of intermittent mass transfer in BB Doradus in the low state
P. Rodríguez-Gil, L. Schmidtobreick, K. S. Long +4
Our long-term photometric monitoring of southern nova-like cataclysmic variables with the 1.3-m SMARTS telescope found BB Doradus fading from V ~ 14.3 towards a deep low state at V…
The low states of CVs at the upper edge of the period gap
P. Rodríguez-Gil, L. Schmidtobreick, K. S. Long +3
We review our knowledge of the origin and phenomenology of low states (also known as VY Scl states) in cataclysmic variables, making special emphasis on the cataclysmic variable po…
Discovery of close binary central stars in the planetary nebulae NGC 6326 and NGC 6778
B. Miszalski, D. Jones, P. Rodríguez-Gil +3
We present observations proving the close binary nature of the central stars belonging to the planetary nebulae (PNe) NGC 6326 and NGC 6778. Photometric monitoring reveals irradiat…
ETHOS 1: A high latitude planetary nebula with jets forged by a post common envelope binary central star
B. Miszalski, R. L. M. Corradi, H. M. J. Boffin +5
We report on the discovery of ETHOS 1 (PN G068.1+11.0), the first spectroscopically confirmed planetary nebula (PN) from a survey of the SuperCOSMOS Science Archive for high-latitu…
An evolved donor star in the long-period cataclysmic variable HS 0218+3229
P. Rodríguez-Gil, M. A. P. Torres, B. T. Gänsicke +5
Context. We present time-resolved spectroscopy and photometry of HS 0218+3229, a new long-period cataclysmic variable discovered within the Hamburg Quasar Survey. It is one of the…