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Understanding Compact Object Formation and Natal Kicks: II. The case of XTE J1118+480
T. Fragos, B. Willems, V. Kalogera +4
In recent years, an increasing number of proper motions have been measured for Galactic X-ray binaries. When supplemented with accurate determinations of the component masses, orbi…
Beating the spin-down limit on gravitational wave emission from the Crab pulsar
The LIGO Scientific Collaboration, B. Abbott, R. Abbott +440
We present direct upper limits on gravitational wave emission from the Crab pulsar using data from the first nine months of the fifth science run of the Laser Interferometer Gravit…
The lowest-mass stellar black holes: catastrophic death of neutron stars in gamma-ray bursts
K. Belczynski, R. O'Shaughnessy, V. Kalogera +3
Mergers of double neutron stars are considered the most likely progenitors for short gamma-ray bursts. Indeed such a merger can produce a black hole with a transient accreting toru…
Deep Chandra Monitoring Observations of NGC 3379: Catalog of Source Properties
N. J. Brassington, G. Fabbiano, D. -W. Kim +11
We present the properties of the discrete X-ray sources detected in our monitoring program of the `typical' elliptical galaxy, NGC 3379, observed with Chandra ACIS-S in five separa…
The Dearth of low-luminosity Globular Cluster LMXBs in NGC 3379
G. Fabbiano, N. J. Brassington, A. Zezas +10
Our campaign of deep monitoring observations with {\it Chandra} of the nearby elliptical galaxy NGC 3379 has lead to the detection of nine globular cluster (GC) and 53 field low ma…
Host Galaxies Catalog Used in LIGO Searches for Compact Binary Coalescence Events
Ravi Kumar Kopparapu, Chad R. Hanna, Vicky Kalogera +4
An up-to-date catalog of nearby galaxies considered as hosts of binary compact objects is provided with complete information about sky position, distance, extinction-corrected blue…
Black Hole Formation in X-Ray Binaries: The Case of XTE J1118+480
T. Fragos, B. Willems, N. Ivanova +1
In recent years, an increasing number of proper motions have been measured for Galactic X-ray binaries. When supplemented with accurate determinations of the component masses, orbi…
Effect of PSR J0737-3039 on the DNS Merger Rate and Implications for GW Detection
Chunglee Kim, Vicky Kalogera, Duncan R. Lorimer
We present the current estimates of the Galactic merger rate of double-neutron-star (DNS) systems. Using a statistical analysis method, we calculate the probability distribution fu…
The Eclipsing ULX in NGC 3379
G. Fabbiano, D. -W. Kim, T. Fragos +9
We report recent Chandra observations of the ULX in the elliptical galaxy NGC3379 that clearly detect two flux variability cycles. Comparing these data with the Chandra observation…
Point X-ray Sources in Elliptical Galaxies
Natalia Ivanova, Vicky Kalogera
We analyze the upper-end X-ray luminosity function (XLF) observed in elliptical galaxies for point sources. We propose that the observed XLF is dominated by transient BH systems in…
Upper Limits on a Stochastic Background of Gravitational Waves
LIGO Scientific Collaboration, B. Abbott
The Laser Interferometer Gravitational Wave Observatory (LIGO) has performed a third science run with much improved sensitivities of all three interferometers. We present an analys…
Constraining population synthesis models via the binary neutron star population
R. O'Shaughnessy, C. Kim, T. Frakgos +2
The observed sample of double neutron-star (NS-NS) binaries presents a challenge to population-synthesis models of compact object formation: the parameters entering into these mode…
The Highly Relativistic Binary Pulsar PSR J0737-3039A: Discovery and Implications
M. Burgay, N. D'Amico, A. Possenti +10
PSR J0737-3039A is a millisecond pulsar with a spin period of 22.7 ms included in a double-neutron star system with an orbital period of 2.4 hrs. Its companion has also been detect…
Gravitational Waves from Extragalactic Inspiraling Binaries: Selection Effects and Expected Detection Rates
Philip Nutzman, Vicky Kalogera, Lee Samuel Finn +2
We examine the selection effects that determine how the population of inspiraling binary compact objects (BCOs) is reflected by those potentially observed with ground-based interfe…
The Cosmic Coalescence Rates for Double Neutron Star Binaries
V. Kalogera, C. Kim, D. R. Lorimer +10
This manuscript is an updated version of Kalogera et al. (2004) published in ApJ Letters to correct our calculation of the Galactic DNS in-spiral rate. The details of the original…
The distribution of mass ratios in compact object binaries
T. Bulik, K. Belczynski, V. Kalogera
Using the StarTrack population synthesis code we compute the distribution of masses of merging compact object (black hole or neutron star) binaries. The shape of the mass distribut…
The Formation of Black-Hole X-Ray Transients
V. Kalogera
Studies of the observed characteristics of black-hole (BH) X-ray binaries can be provide us with valuable information about the process of BH formation. In this paper I address som…
Compact Binary Mergers and Accretion-Induced Collapse: Event Rates
Vassiliki Kalogera
This paper is a brief review of the topic of binary systems as sources of gravitational-wave emission for both LIGO and LISA. In particular I review the current estimates of the as…