71 citations · 712 across the 32 of their papers we have counts for
32 papers
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…
White Dwarf Binaries: Probes of Future Astrophysics
Anna F. Pala, Roberto Raddi, Alberto Rebassa-Mansergas +25
White dwarf binaries are fundamental astrophysical probes. They represent ideal laboratories to test the models of binary evolution, which also apply to the sources of gravitationa…
The Future of Evolved Planetary Systems
Roberto Raddi, Anna F. Pala, Alberto Rebassa-Mansergas +19
Understanding the formation, evolution, and chemical diversity of exoplanets are now central areas of astrophysics research. White dwarfs provide a uniquely sensitive laboratory fo…
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…
The planetary nebula NGC 6153 through the eyes of MUSE
V. Gómez-Llanos, J. García-Rojas, C. Morisset +7
In this contribution, we present the results of a study on the high abundance discrepancy factor (ADF 10) planetary nebula (PN) NGC 6153 with MUSE. We have constructed flux…
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…
Velocity-imaging the rapidly precessing planetary disc around the white dwarf HE 1349-2305 using Doppler tomography
Christopher J. Manser, Erik Dennihy, Boris T. Gänsicke +11
The presence of planetary material in white dwarf atmospheres, thought to be accreted from a dusty debris disc produced via the tidal disruption of a planetesimal, is common. Appro…
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…
IGAPS: the merged IPHAS and UVEX optical surveys of theNorthern Galactic Plane
M. Monguió, R. Greimel, J. E. Drew +47
The INT Galactic Plane Survey (IGAPS) is the merger of the optical photometric surveys, IPHAS and UVEX, based on data from the Isaac Newton Telescope (INT) obtained between 2003 an…
The 1989 and 2015 outbursts of V404 Cygni: a global study of wind-related optical features
D. Mata Sánchez, T. Muñoz-Darias, J. Casares +19
The black hole transient V404 Cygni exhibited a bright outburst in June 2015 that was intensively followed over a wide range of wavelengths. Our team obtained high time resolution…
The long-term optical evolution of the black hole candidate MAXI J1659-152
Jesus M. Corral-Santana, Manuel A. P. Torres, Tariq Shahbaz +13
We present 5 years of optical and infrared data of the black hole candidate MAXI J1659-152 covering its 2010 outburst, decay and quiescence. Combining optical data taken during the…
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…
Investigating spatial variation of the physical and chemical conditions of NGC 6778
H. Monteiro, J. Garcia-Rojas, D. Jones +2
A number of planetary nebulae show binary central stars and significant abundance discrepancies between values estimated from colisionally excited lines when compared to the same a…
A millisecond pulsar candidate in a 21-hr orbit: 3FGL J0212.1+5320
Manuel Linares, Paulo Miles-Páez, Pablo Rodríguez-Gil +4
We present the discovery of a variable optical counterpart to the unidentified gamma-ray source 3FGL J0212.1+5320, and argue this is a new compact binary millisecond pulsar (MSP) c…
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…
LOFT: the Large Observatory For X-ray Timing
M. Feroci, J. W. den Herder, E. Bozzo +245
The LOFT mission concept is one of four candidates selected by ESA for the M3 launch opportunity as Medium Size missions of the Cosmic Vision programme. The launch window is curren…