Chandra detection of extended X-ray emission from the recurrent nova RS Ophiuchi (2009)
Luna, G. J. M., Montez, R., Sokoloski, J. L., Mukai, K., Kastner, J. H.
Radio, infrared, and optical observations of the 2006 eruption of the symbiotic recurrent nova RS Ophiuchi (RS Oph) showed that the explosion produced non-spherical ejecta. Some of this ejected...
Swift Observations of Hard X-ray Emitting White Dwarfs in Symbiotic Stars (2009)
Kennea, J. A., Mukai, K., Sokoloski, J. L., Luna, G. J. M., Tueller, J., Markwardt, C. B., ...
The X-ray emission from most accreting white dwarfs (WDs) in symbiotic binary stars is quite soft. Several symbiotic WDs, however, produce strong X-ray emission at energies greater than ~20 keV. The...
A planetary nebula around nova V458 Vul undergoing flash ionization (2008)
Wesson, R., Barlow, M. J., Corradi, R. L. M., Drew, J. E., Groot, P. J., Knigge, C., ...
Nova V458 Vul erupted on 2007 August 8th and reached a visual magnitude of 8.1 a few days later. H$\alpha$ images obtained six weeks before the outburst as part of the IPHAS galactic plane survey...
Barry, R. K., Danchi, W. C., Traub, W. A., Sokoloski, J. L., Wisniewski, J. P., Serabyn, E., ...
We report observations of the nova RS Ophiuchi (RS Oph) using the Keck Interferometer Nuller (KIN), approximately 3.8 days following the most recent outburst that occurred on 2006 February 12. These...
Barry, R. K., Danchi, W. C., Traub, W. A., Sokoloski, J. L., Wisniewski, J. P., Serabyn, E., ...
We report observations of the nova RS Ophiuchi (RS Oph) using the Keck Interferometer Nuller (KIN), approximately 3.8 days following the most recent outburst that occurred on 2006 February 12. These...
IPHAS and the symbiotic stars 1: selection method and first discoveries. (2008)
Corradi, R.L.M., Rodriguez-Flores, E.R., Mampaso, A., Greimel, R., Viironen, K., Drew, J.E., ...
IPHAS and the symbiotic stars. I. Selection method and first discoveries (2007)
Corradi, R. L. M., Rodríguez-Flores, E. R., Mampaso, A., Greimel, R., Viironen, K., Drew, J. E., ...
The study of symbiotic stars is essential to understand important aspects of stellar evolution in interacting binaries. Their observed population in the Galaxy is however poorly known, and is one to...
Corbet, R. H. D., Sokoloski, J. L., Mukai, K., Markwardt, C. B., Tueller, J.
We present an analysis of the X-ray variability of three symbiotic X-ray binaries, GX 1+4, 4U 1700+24, and 4U 1954+31, using observations made with the Swift Burst Alert Telescope (BAT) and the Rossi...
Interferometric Observations of V1663 Aquilae (Nova Aql 2005) (2007)
Lane, B. F., Retter, A., Eisner, J. A., Muterspaugh, Matthew W., Thompson, R. R., Sokoloski, J. L.
We have resolved the classical nova V1663 Aql using long-baseline near-IR interferometry covering the period from 5--18 days after peak brightness. We directly measure the shape and size of the...
The Nature of the Hard-X-Ray Emitting Symbiotic Star RT Cru (2007)
Luna, G. J. M., Sokoloski, J. L.
We describe Chandra High-Energy Transmission Grating Spectrometer observations of RT Cru, the first of a new sub-class of symbiotic stars that appear to contain white dwarfs (WDs) capable of...
Outer jet X-ray and radio emission in R Aquarii: 1999.8 to 2004.0 (2007)
Kellogg, E., Anderson, C., Korreck, K., DePasquale, J., Nichols, J., Sokoloski, J. L., ...
Chandra and VLA observations of the symbiotic star R Aqr in 2004 reveal significant changes over the three to four year interval between these observations and previous observations taken with the...
Interferometric Observations of RS Ophiuchi and the Origin of the Near-IR Emission (2006)
Lane, B. F., Sokoloski, J. L., Barry, R. K., Traub, W. A., Retter, A., Muterspaugh, M. W., ...
We report observations of the recurrent nova RS Oph using long-baseline near-IR interferometry. We are able to resolve emission from the nova for several weeks after the February 2006 outburst. The...
A study of the mass loss rates of symbiotic star systems (2006)
Korreck, K. E., Kellogg, E., Sokoloski, J. L.
The amount of mass loss in symbiotic systems is investigated, specifically mass loss via the formation of jets in R Aquarii (R Aqr). The jets in R Aqr have been observed in the X-ray by Chandra over...
Wood-Vasey, W. M., Sokoloski, J. L.
We propose that a nova shell ejected from a recurrent nova progenitor system created the evacuated region around the explosion center of SN 2002ic. In this picture, periodic shell ejections due to...
X-Ray Emitting Blast Wave from the Recurrent Nova RS Ophiuchi (2006)
Sokoloski, J. L., Luna, G. J. M., Mukai, K., Kenyon, Scott J.
Stellar explosions such as novae and supernovae produce most of the heavy elements in the Universe. Although the onset of novae from runaway thermonuclear fusion reactions on the surface of a white...
Sokoloski, J. L., Kenyon, S. J., Espey, B. R., Keyes, Charles D., McCandliss, S. R., Kong, A. K. H., ...
We describe observational evidence for a new kind of interacting-binary-star outburst that involves both an accretion instability and an increase in thermonuclear shell burning on the surface of an...
Discovery of a redshifted X-ray emission line in the symbiotic neutron star binary 4U 1700+24 (2005)
Tiengo, A., Galloway, D. K., Di Salvo, T., Mendez, M., Miller, J. M., Sokoloski, J. L., ...
We present the spectral analysis of an XMM-Newton observation of the X-ray binary 4U 1700+24, performed during an outburst in August 2002. The EPIC-PN spectrum above 1 keV can be modeled by a...
Discovery of a redshifted X-ray emission line in the symbiotic neutron star binary 4U 1700+24 (2005)
Tiengo, A., Galloway, D.K., Salvo, T. Di, Mendez, M., Miller, J.M., Sokoloski, J.L., ...
We present the spectral analysis of an XMM-Newton observation of the X-ray binary 4U 1700+24, performed during an outburst in August 2002. The EPIC-PN spectrum above 1 keV can be modeled by a...
The INT Photometric Ha Survey of the Northern Galactic Plane (IPHAS). (2005)
Drew, J.E., Greimel, R., Irwin, M.J., Aungwerojwit, A., Barlow, M.J., Corradi, R.L.M., ...
The INT Photometric Ha Survey of the Northern Galactic Plane (IPHAS). (2005)
Drew, J.E., Greimel, R., Irwin, M.J., Aungwerojwit, A., Barlow, M.J., Corradi, R.L.M., ...
Detection of new planetary nebulae by IPHAS, the Hα survey of the North Galactic plane (2005)
Corradi, R. L. M, Mampaso, A, Phillipps, S, Irwin, M, Barlow, M, Frew, D. J, ...
IPHAS is an ongoing Hα imaging survey of the North Galactic plane. When completed, it is expected to discover several hundred new Galactic planetary nebulae, in addition to a huge number of Hα...
Sokoloski, J. L., Kenyon, S. J., Kong, A. K. H., Espey, B. R., McCandliss, S. R., Keyes, C. D., ...
We performed extensive, multi-wavelength observations of the prototypical symbiotic star Z Andromedae between 2000 and 2003, during a large eruption. The rise to optical maximum occurred in three...
Is GRS 1915+105 a microquasar? (2004)
Kaiser, Christian R., Sokoloski, J. L., Gunn, Katherine F., Brocksopp, Catherine
The large mechanical luminosity of the jets of GRS 1915+105 should give rise to luminous emission regions, similar to those observed in radio galaxies, where the jets interact with the gas...
Galloway, D. K., Sokoloski, J. L.
Most symbiotic stars consist of a white dwarf accreting material from the wind of a red giant. An increasing number of these objects have been found to produce jets. Analysis of archival Chandra data...
Revision of the properties of the GRS 1915+105 jets: Clues from the large-scale structure (2004)
Kaiser, Christian R., Gunn, Katherine F., Brocksopp, Catherine, Sokoloski, J. L.
The jets of GRS 1915+105 carry a considerable energy away from the central source into the ISM. The similarity of the jets of this source and jets in radio galaxies or radio-loud quasars suggests...
Symbiotic binary stars typically consist of a white dwarf (WD) that accretes material from the wind of a companion red giant. Orbital periods for these binaries are on the order of years, and their...
A radio jet in the prototypical symbiotic star Z And? (2004)
Brocksopp, C., Sokoloski, J.L., Kaiser, C., Richards, A.M., Muxlow, T.W.B., Seymour, N.
As part of a multiwavelength campaign to observe the 2000-2002 outburst of the prototypical symbiotic star Z Andromedae, we observed this object six times each with the Multi-Element Radio Linked...
Jets from accreting white dwarfs (2004)
Brocksopp , C., Kaiser , C. R., Kellogg , E. M., Kenyon , S. J., Sokoloski , J. L.
Los ujos colimados procedentes de los discos de acreción de las enanas blancas juegan un papel muy importante al estudiar los jets" en astrofìsica.
A radio jet in the prototypical symbiotic star Z And? (2003)
Brocksopp, C., Sokoloski, J. L., Kaiser, C., Richards, A. M., Muxlow, T. W. B., Seymour, N.
As part of a multi-wavelength campaign to observe the 2000--2002 outburst of the prototypical symbiotic star Z Andromedae, we observed this object six times each with the Multi-Element Radio Linked...
CH Cygni I: Observational Evidence for a Disk-Jet Connection (2002)
Sokoloski, J. L., Kenyon, S. J.
We investigate the role of accretion in the production of jets in the symbiotic star CH Cygni. Assuming that the rapid stochastic optical variations in CH Cygni come from the accretion disk, as in...
CH Cygni II: Optical Flickering from an Unstable Disk (2002)
Sokoloski, J. L., Kenyon, S. J.
CH Cygni began producing rapid, stochastic optical variations with the onset of symbiotic activity in 1963. We use changes in this flickering between 1997 and 2000 to diagnose the state of the...
Accretion disks and nuclear shell burning are present in some symbiotic stars (SS) and probably all supersoft X-ray binaries (SSXBs). Both the disk and burning shell may be involved in the production...
Correlated radial velocity and X-ray variations in HD 154791/4U 1700+24 (2002)
Galloway, D. K., Sokoloski, J. L., Kenyon, S. J.
We present evidence for approximately 400-d variations in the radial velocity of HD 154791 (V934 Her), the suggested optical counterpart of 4U 1700+24. The variations are correlated with the...
Four New Delta Scuti Pulsators from a Variability Survey of 131 Stars (2002)
Sokoloski, J. L., Bildsten, Lars, Chornock, R., Filippenko, Alexei V.
In a photometric variability survey of 131 stars with B < 14 mag, we have found four new Delta Scuti stars. We were sensitive to oscillation amplitudes as low as a few mmag. The detection rate of...
Sokoloski, J. L., Kenyon, S. J., Kong, A. K. H., Charles, P. A., Kaiser, C. R., Seymour, N., ...
We describe the first results from a program of multi-wavelength monitoring of symbiotic binary stars in outburst. The prototypical symbiotic star Z Andromedae was observed extensively at radio,...
A Search for Rapid Photometric Variability in Symbiotic Binaries (2001)
Sokoloski, J. L., Bildsten, Lars, Ho, Wynn C. G.
We report on our survey for rapid (time scale of minutes) photometric variability in symbiotic binaries. These binaries are becoming an increasingly important place to study accretion onto white...
Discovery of a Magnetic White Dwarf in the Symbiotic Binary Z Andromedae (1998)
Sokoloski, J. L., Bildsten, Lars
We report the first result from our survey of rapid variability in symbiotic binaries: the discovery of a persistent oscillation at P=1682.6 +- 0.6 s in the optical emission from the prototype...