6 papers
A 70 pc-Diameter Nova Super-remnant Surrounding the Recurrent Nova RS Ophiuchi
Michael M. Shara, Kenneth M. Lanzetta, Alexandra Masegian +9
Recurrent novae undergo thermonuclear-powered eruptions separated by less than 100 years, enabled by subgiant or red giant donors transferring hydrogen-rich matter at very high rat…
Direct Images of the Cosmic Web of Intergalactic and Circumgalactic Gas in the Distant Universe
Kenneth M. Lanzetta, Stefan Gromoll, Michael M. Shara +5
Most of the baryonic matter of the Universe resides in a highly-ionized gaseous intergalactic medium. This gas flows along dark-matter filaments toward galaxy superclusters, cluste…
The Newly Discovered Nova Super-Remnant Surrounding Recurrent Nova T Coronae Borealis: Will it Light Up During the Coming Eruption?
Michael M. Shara, Kenneth M. Lanzetta, Alexandra Masegian +7
A century or less separates the thermonuclear-powered eruptions of recurrent novae in the hydrogen-rich envelopes of massive white dwarfs. The colliding ejecta of successive recurr…
Introducing the Condor Array Telescope. VI. Discovery of Extensive Ionized Gaseous Filaments of the Cosmic Web in the Direction of the M81 Group
Kenneth M. Lanzetta, Stefan Gromoll, Michael M. Shara +3
We used the Condor Array Telescope to obtain deep imaging observations through luminance broad-band and He II, [O III], He I, H, [N II], and [S II] narrow-band filters of an ex…
Introducing the Condor Array Telescope. V. Deep Broad- and Narrow-Band Imaging Observations of the M81 Group
Kenneth M. Lanzetta, Stefan Gromoll, Michael M. Shara +3
We used the Condor Array Telescope to obtain deep imaging observations through the luminance broad-band and He II 468.6 nm, [O III] 500.7 nm, He I 587.5 nm, H, [N II] 658.4 nm,…
Discovery of a 25 parsec-long precessing jet emanating from the old nova GK Persei
Michael M. Shara, Kenneth M. Lanzetta, James T. Garland +6
Classical nova eruptions result from thermonuclear-powered runaways in, and ejection of, the hydrogen-rich envelopes of white dwarf stars accreted from their close binary companion…