74 citations · 77 across the 3 of their papers we have counts for
5 papers
R Coronae Borealis fadings: a dusty gas cloud eclipse model
Mark A. Walker, Artem V. Tuntsov, Arthur G. Suvorov
R Coronae Borealis stars (RCBs) are hydrogen-deficient supergiants that undergo deep fading events due to transient extinction by dust. First observed over two centuries ago, that…
Tidal disruption of "snow clouds" by unassociated stars
Arthur G. Suvorov, Mark A. Walker
It has been suggested that star-forming galaxies may host a substantial, dark reservoir of gas in the form of planetary-mass molecular clouds that are so cold that c…
Free-floating "planets'' in the macrolensed quasar Q2237+0305
Artem Tuntsov, Geraint Lewis, Mark Walker
It has been claimed that the variability of field quasars resembles gravitational lensing by a large cosmological population of free-floating planets with mass of about 10 Earths.…
The RATT PARROT: serendipitous discovery of a peculiarly scintillating pulsar in MeerKAT imaging observations of the Great Saturn-Jupiter Conjunction of 2020. I. Dynamic imaging and data analysis
O. M. Smirnov, B. W. Stappers, C. Tasse +11
We report on a radiopolarimetric observation of the Saturn-Jupiter Great Conjunction of 2020 using the MeerKAT L-band system, initially carried out for science verification purpose…
Precision orbital dynamics from interstellar scintillation arcs for PSR J0437-4715
Daniel J. Reardon, William A. Coles, Matthew Bailes +17
Intensity scintillations of radio pulsars are known to originate from interference between waves scattered by the electron density irregularities of interstellar plasma, often lead…