The Physics of Extreme-Gravity Stars

Session

White dwarf — white dwarf binaries (cont); White dwarf —neutron stars and white dwarf — black hole binaries; numerical simulations

20 Jun 2017, 09:00

122:026 (Nordita, Stockholm)

378. Future prospect for exploiting double white dwarfs detected by GAIA, LSST and LISA

Elena Rossi

20/06/2017, 09:00

Double white dwarf systems have a very broad range of possible outcomes, which make them physically very interesting. On the other hand, they are the most common compact object binaries in the Galaxy and they may use as tomographic probes with both electromagnetic and gravitational waves. The limiting factor to current studies is the number of objects known. Notably, the era of...

379. Type Ia supernovae with the Palomar Transient Factory

Seméli Papadogiannakis

20/06/2017, 09:30

Type Ia supernovae, at low and high-redshifts, are used as distance indicators for precision cosmology. The low-redshift SNIa sample is particularly useful for detailed studies not feasible with the distant sample. These studies are important to explore and quantify potential systematic effects in the derived distances. The Palomar Transient Factory (PTF, 2009-2012) and its successor...

381. Probing the distribution of delay times of Type Ia SNe

Epson Heringer

20/06/2017, 09:45

Traditional techniques used to measure the delay time distribution of SN Ia depend on physical quantities that are notoriously difficult to measure, such as the age of the progenitor system. In this talk I will introduce a novel method, in which the relevant quantites are the color and absolute magnitude of galaxies in a control sample. We find that a power-law slope of t^-1.5 is...

382. The variety of neutron-star, white-dwarf binaries and the maximum mass of neutron stars

Marten Van Kerkwijk

20/06/2017, 10:00

383. Mass Leakage through L2 in Binaries

Itai Linial

20/06/2017, 11:00

384. Rapidly-evolving transients from white dwarf-neutron star mergers

Ben Margalit

20/06/2017, 11:15

The merger of binaries consisting of a white dwarf (WD) and a neutron star (NS), though much less studied than their NS-NS/WD-WD brethren, are relatively common astrophysical events which may contribute to the transient sky. We describe a 1D time-dependent model of the accretion flow produced by the dynamical disruption of a WD by a NS, which accounts for the effects of nuclear...

385. White dwarf - neutron star and white dwarf - black hole binaries

Ross Church

20/06/2017, 11:30

Binaries containing a white dwarf and a neutron star, and their more massive relatives containing a white dwarf and a black hole, are interesting for a number of reasons. Their existance and properties allow us to constrain the evolution of interacting binary stars, probing a number of important poorly-understood physical processes such as common-envelope evolution and...