752 citations · 4k across the 54 of their papers we have counts for
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V1309 SCO - Understanding a merger
Jose L. A. Nandez, Natalia Ivanova, James Lombardi
One of the two outcomes of a common envelope event is a merger of the two stars. To date, the best known case of a binary merger is the V1309 Sco outburst, where the orbital period…
Galactic Ultracompact X-ray Binaries: Empirical Luminosities
T. F. Cartwright, M. C. Engel, C. O. Heinke +4
Ultracompact X-ray binaries (UCXBs) are thought to have relatively simple binary evolution post-contact, leading to clear predictions of their luminosity function. We test these pr…
Galactic Ultracompact X-ray Binaries: Disk Stability and Evolution
C. O. Heinke, N. Ivanova, M. C. Engel +4
We study the mass transfer rates and disk stability conditions of ultracompact X-ray binaries (UCXBs) using empirical time-averaged X-ray luminosities from Paper I (Cartwright et a…
Identification of the Long-Sought Common-Envelope Events
N. Ivanova, S. Justham, J. L. Avendano Nandez +1
Common-envelope events (CEEs), during which two stars temporarily orbit within a shared envelope, are believed to be vital for the formation of a wide range of close binaries. For…
Low-Mass X-ray Binaries in Globular Clusters: Puzzles and Solutions
Natalia Ivanova
In dense stellar systems, dynamical interactions between objects lead to frequent formation of exotic stellar objects, unusual binaries, and systems of higher multiplicity. They ar…