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The Search for High-Mass X-ray Binaries in the Phoenix Dwarf Galaxy
High-Mass X-ray Binaries Phoenix Dwarf Galaxy
2012/2/23
We report on the first X-ray images of the Phoenix dwarf galaxy, taken with \emph{XMM-Newton} in July 2009. This local group dwarf galaxy shares similarities with the Small Magellanic Cloud (SMC) incl...
Addressing the spin question in gravitational-wave searches: Waveform templates for inspiralling compact binaries with nonprecessing spins
Addressing spin question gravitational-wave searches Waveform templates inspiralling
2011/10/18
This paper presents a post-Newtonian (PN) template family of gravitational waveforms from inspiralling compact binaries with non-precessing spins, where the spin effects are described by a single "red...
On the complementarity of pulsar timing and space laser interferometry for supermassive black hole binaries individual detection
complementarity pulsar timing space laser interferometry supermassive black hole
2011/10/14
For the observation of an individual supermassive black hole binary (SMBHB), the complementarity between pulsar timing (PT) and space laser interferometry (SLI) has been previously suggested. Herein s...
Comparing the Accretion Disk Evolution of Black Hole and Neutron Star X-ray Binaries from Low to Super-Eddington Luminosity
Accretion Disk Evolution Neutron Star X-ray Binaries Super-Eddington Luminosity
2011/10/21
Low-mass X-ray binaries (LMXBs) are systems in which a low-mass companion transfers mass via Roche-lobe overflow onto a black hole (BH) or a weakly magnetized neutron star (NS). It is believed that bo...
Infrared and radio study of the W43 cluster: resolved binaries and non-thermal emission
Stars: binaries – Stars: Wolf-Rayet – X-rays: stars – Radio continuum: stars – Gamma rays: stars – Infrared: stars
2011/10/9
Context: The recent detection of very high-energy (VHE) gamma-ray emission from the direction of the W43 star-forming region prompted us to investigate its stellar population in detail in an attempt t...
Orbital Period Determinations for Four SMC Be/X-ray Binaries
Orbital Period Determinations SMC Be/X-ray Binaries
2011/1/11
We present an optical and X-ray study of four Be/X-ray binaries located in the Small Magellanic Cloud (SMC). OGLE I-band data of up to 11 years of semi-continuous monitoring has been analysed for SMC ...
High Mass X-ray Binaries in the NIR : Orbital solutions of two highly obscured systems
High Mass X-ray Binaries；the NIR
2011/1/13
The maximum mass of a neutron star (NS) is poorly defined. Theoretical attempts to define this mass have thus far been unsuccessful. Observational results currently provide the only means of narrowing...
A Precision Test for an Extra Spatial Dimension Using Black Hole--Pulsar Binaries
Extra Spatial Dimension Black Hole Pulsar Binaries
2011/1/11
We discuss the observable effects of enhanced black-hole mass loss in a black hole--neutron star (BH--NS) binary, due to the presence of a warped extra spatial dimension of curvature radius $L$ in the...
The Distribution of Coalescing Compact Binaries in the Local Universe: Prospects for Gravitational-Wave Observations
gravitational waves — stars neutron — binaries general
2010/11/11
Merging compact binaries are the most viable and best studied candidates for gravitational wave
(GW) detection by the fully operational network of ground-based observatories. In anticipation of the f...
Thin shell morphology in the circumstellar medium of massive binaries
Hydrodynamics – Stars binaries general – Stars circumstellar matter – Stars massive – Stars winds outflows
2010/11/11
Context. In massive binaries, the powerful stellar winds of the two stars collide, leading to the formation of shock-dominated environments that can be modelled only in 3D.
Cataclysmic Variables and Other Compact Binaries in the Globular Cluster NGC 362: Candidates from Chandra and HST
cataclysmic binaries close binary stars globular clusters X-ray binaries
2010/11/10
Highly sensitive and precise X-ray imaging from Chandra, combined with the superb spatial resolution of HST optical images, dramatically enhances our empirical understanding of compact binaries such a...
Mass Transfer in Binary Stars using SPH. II. Eccentric Binaries
binaries close — stars evolution — hydrodynamics — methods numerical
2010/11/12
Despite numerous efforts to better understand binary star evolution, some aspects of it remain
poorly constrained. In particular, the evolution of eccentric binaries has remained elusive mainly becau...
Binaries migrating in a gaseous disk: Where are the Galactic center binaries?
accretion accretion disks binaries general Galaxy center hydrodynamics methods: numerical
2010/11/9
The massive stars in the Galactic center inner arcsecond share analogous properties with the so-called Hot Jupiters. Most of these young stars have highly eccentric orbits, and were probably not forme...
Hubble Space Telescope Imaging and Spectral Analysis of Two Brown Dwarf Binaries at the L Dwarf/T Dwarf Transition
binaries visual — stars individual stars
2010/11/10
We present a detailed examination of the brown dwarf multiples 2MASS J08503593+1057156 and
2MASS J17281150+3948593, both suspected of harboring components that straddle the L dwarf/T
dwarf transitio...
Orbital Solutions for Two Young, Low-Mass Spectroscopic Binaries in Ophiuchus
binaries spectroscopic — starslT Tauri — techniqueslradial velocities
2010/11/9
We report the orbital parameters for ROXR1 14 and RX J1622.7-2325Nw, two young, low-mass, and double-lined spectroscopic binaries recently discovered in the Ophiuchus star forming region.