'Roche lobe' presentation slideshows

Cataclysmic Variables

Cataclysmic Variables. Mark Cropper Mullard Space Science Laboratory University College London. Course Structure. Brief historical introduction and context Types and classes. Non-magnetic systems Magnetic systems: Polars and Intermediate Polars Short and ultra-short period systems

1.85k views • 94 slides

Gamow conference, Odessa , 2 0.08. 20 0 9

Gamow conference, Odessa , 2 0.08. 20 0 9. Ivan L. Andronov Odessa National Maritime University. Space Laboratory to Study Accretion in Magnetic Cataclysmic Variables: The Case of Exotic Newly-Discovered Polar OTJ 071126+440405.

621 views • 46 slides

X-Ray Astronomy and Accretion Phenomena

505 views • 42 slides

SN Ia rates and progenitors

SN Ia rates and progenitors. Mark Sullivan University of Southampton. The cosmological power of SNe Ia. SNe Ia are still essential for a meaningful measurement of dark energy. Supernova Legacy Survey 3-year sample Nearly 500 SNe Ia. With SNe:. Minus SNe :. Conley et al. 2011.

432 views • 33 slides

Cataclysmic Variable Stars

Cataclysmic Variable Stars. A Brief Overview. What is a Cataclysmic Variable?. Close binary system Primary = White Dwarf Secondary = (usually) Red Dwarf Mass transfer from secondary X-Ray emission Roche Lobe Geometry Accretion Disks (not always though)

1.05k views • 32 slides

Getting to Eddington and beyond in AGN and binaries!

411 views • 26 slides

Binary Star Evolution

Binary Star Evolution. Half of all stars are in binary systems - stellar evolution in binaries is important Roche Lobe: 3-D boundary where the gravity of 2 stars is equal; if a star expands beyond this boundary some of its matter accretes onto the other star

1.1k views • 24 slides

The 2011 Periastron Passage of the Be?binary ? Sco

336 views • 23 slides

HOW TO DETECT A BLACK HOLE

373 views • 20 slides

Formation of Redback and Black Widow Binary Millisecond Pulsars

233 views • 18 slides

Where are the Accreting Helium White Dwarfs??

Where are the Accreting Helium White Dwarfs??. Drawing by T. Piro. In collaboration with Irit Idan (Technion, Haifa) and Ken Shen (UCSB).

269 views • 17 slides

Stellar Populations in Globular Cluster Cores

Nathan Leigh With: Alison Sills and Christian Knigge September 23, 2009 The Lorentz Center, Leiden, the Netherlands. Stellar Populations in Globular Cluster Cores. Introduction. What are the observational signatures of stellar mergers? ? blue stragglers?

262 views • 15 slides

Hunting for the GRB Progenitor

266 views • 13 slides

Mass transfer in binary systems

Mass transfer in binary systems. Mass transfer occurs when star expands to fill Roche-lobe due to stellar evolution orbit, and thus Roche-lobe, shrinks till R * < R L due to orbital evolution: magnetic braking, gravitational radiation etc Three cases

539 views • 13 slides

A nova is when nuclear reactions take place on the surface of a(n)

A nova is when nuclear reactions take place on the surface of a(n). n eutron star b lack hole w hite dwarf m ain sequence star. The region around a graviting object where all material is gravitationally bound is:. t he detached binary t he accretion disk t he Roche lobe

159 views • 6 slides

The mass of the neutron star in SMC X-1

The mass of the neutron star in SMC X-1. A.K.F Val Baker, A.J. Norton & H. Quaintrell Department of Physics and Astronomy, The Open University, Walton Hall, Milton Keynes, MK7 6AA. Introduction

129 views • 1 slides