VSX J074727.6+065050: a new WZ Sagittae star in Canis minor (2009)
Shears, Jeremy, Brady, Steve, Bolt, Greg, Campbell, Tut, Collins, Donald F., Cook, Lewis M., ...
We present photometry of the first reported superoutburst of the dwarf nova VSX J074727.6+065050 during 2008 January and February. At its brightest the star reached magnitude 11.4 and this was...
Absolute Magnitudes of Dwarf Novae: Murmurs of Period Bounce (2009)
We redetermine the relationship between absolute magnitude and orbital period for dwarf novae, based on 46 stars with good or excellent distance estimates. This improves upon Warner's previous...
Superhumps and flickering in V1316 Cygni (2007)
Boyd, David, Lloyd, Christopher, Koff, Robert, Krajci, Thomas, Staels, Bart, Foote, Jerrold, ...
We present analysis and results of a coordinated CCD photometry campaign to observe the 2006 June superoutburst of the cataclysmic variable V1316 Cyg involving 8 longitudinally-distributed observers....
Discovery of a Very Bright, Nearby Gravitational Microlensing Event (2007)
Gaudi, B. Scott, Patterson, Joseph, Spiegel, David S., Krajci, Thomas, Koff, R., Pojmanski, G., ...
We report the serendipitous detection of a very bright, very nearby microlensing event. In late October 2006, an otherwise unremarkable A0 star at a distance ~1 kpc (GSC 3656-1328) brightened...
Superhumps in Cataclysmic Binaries. XXV. q_crit, epsilon(q), and Mass-Radius (2005)
Patterson, Joseph, Kemp, Jonathan, Harvey, David, Fried, Robert, Rea, Robert, Monard, Berto, ...
We report on successes and failures in searching for positive superhumps in cataclysmic variables, and show the superhumping fraction as a function of orbital period. Basically, all short-period...
The Dwarf Nova PQ Andromedae (2005)
Patterson, Joseph, Thorstensen, John, Armstrong, Eve, Henden, Arne, Hynes, Robert
We report a photometric study of the WZ Sagittae-type dwarf nova PQ Andromedae. The light curve shows strong (0.05 mag full amplitude) signals with periods of 1263(1) and 634(1) s, and a likely...
Pulsations, Boundary Layers, and Period Bounce in the Cataclysmic Variable RE J1255+266 (2005)
Patterson, Joseph, Thorstensen, John, Kemp, Jonathan
We report time-series photometry of the quiescent optical counterpart of the EUV transient RE J1255+266. The star appears as a DA white dwarf with bright emission lines and a complex spectrum of...
The Helium-Rich Cataclysmic Variable ES Ceti (2004)
Espaillat, Catherine, Patterson, Joseph, Warner, Brian, Woudt, Patrick
We report photometry of the helium-rich cataclysmic variable ES Ceti during 2001-2004. The star is roughly stable at V ~ 17.0 and has a light curve dominated by a single period of 620 s, which...
Rapid Oscillations in Cataclysmic Variables. XVI. DW Cancri (2004)
Patterson, Joseph, Thorstensen, John, Vanmunster, Tonny, Fried, Robert, Martin, Brian, Campbell, Tut, ...
We report photometry and spectroscopy of the novalike variable DW Cancri. The spectra show the usual broad H and He emission lines, with an excitation and continuum slope characteristic of a...
Tovmassian, Gaghik, Zharikov, Sergei, Michel, Raul, Neustroev, Vitaly, Greiner, Jochen, Skillman, David R., ...
Superhumps in Cataclysmic Binaries. XXIII. V442 Ophiuchi and RX J1643.7+3402 (2002)
Patterson, Joseph, Fenton, William, Thorstensen, John, Harvey, David, Skillman, David, Fried, Robert, ...
We report the results of long observing campaigns on two novalike variables: V442 Ophiuchi and RX J1643.7+3402. These stars have high-excitation spectra, complex line profiles signifying mass loss at...
The 2001 superoutburst of WZ Sagittae (2002)
Patterson, Joseph, Masi, Gianluca, Richmond, Michael, Martin, Brian, Beshore, Edward, Skillman, David, ...
Also archived in: arXiv:astro-ph/0204126 v1 08 Apr 2002
The 2001 superoutburst of WZ Sagittae (2002)
Patterson, Joseph, Masi, Gianluca, Richmond, Michael, Martin, Brian, Beshore, Edward, Skillman, David, ...
Also archived in: arXiv:astro-ph/0204126 v1 08 Apr 2002
Rapid Oscillations in Cataclysmic Variables. XV. HT Camelopardalis (= RX J0757.0+6306) (2002)
Kemp, Jonathan, Patterson, Joseph, Thorstensen, John, Fried, Robert, Skillman, David, Billings, Gary
We present photometry and spectroscopy of HT Camelopardalis, a recently discovered X-ray-bright cataclysmic variable. The spectrum shows bright lines of H, He I, and He II, all moving with a period...
Superhumps in Cataclysmic Binaries. XXII. 1RXS J232953.9+062814 (2002)
Skillman, David, Krajci, Thomas, Beshore, Edward, Patterson, Joseph, Kemp, Jonathan, Starkey, Donn, ...
We report photometry of 1RXS J232953.9+062814, a recently discovered dwarf nova with a remarkably short 64.2-minute orbital period. In quiescence, the star's light curve is that of a double sinusoid,...
Late superhumps and the stream–disc impact in IY UMa (2001)
Rolfe, Daniel J., Haswell, Carole A., Patterson, Joseph
We use the hotspot eclipse times of the newly discovered deeply eclipsing dwarf nova IY UMa to trace out the shape of its disc during the late superhump era. We find an eccentric disc. We show that...
Late superhumps and the stream-disc impact in IY UMa (2000)
Rolfe, Daniel J., Haswell, Carole A., Patterson, Joseph
We use the hot spot eclipse times of the newly discovered deeply-eclipsing dwarf nova IY UMa to trace out the shape of its disc during the late superhump era. We find an eccentric disc. We show that...
Rolfe, Daniel J., Haswell, Carole A., Patterson, Joseph
The eclipsing novalike cataclysmic variable star V348 Pup exhibits a persistent luminosity modulation with a period 6 per cent longer than its 2.44 hour orbital-period (Porb). This has been...