output
19922026
Showing 2018 · astro-ph.HEShow all

27 papers · 2 filters

astro-ph.HE2018★ 66 cited

Frequency-Dependent Template Profiles for High Precision Pulsar Timing

Timothy T. Pennucci

Pulsar timing experiments require high fidelity template profiles in order to minimize the biases in pulse time-of-arrival (TOA) measurements and their uncertainties. Efforts to ac…

astro-ph.HE2018★ 80 cited

Searches for Continuous Gravitational Waves from Fifteen Supernova Remnants and Fomalhaut b with Advanced LIGO

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1129

We describe directed searches for continuous gravitational waves from sixteen well localized candidate neutron stars assuming none of the stars has a binary companion. The searches…

astro-ph.HE2018★ 25 cited

Eccentricity distributions of eccentric binary black holes in galactic nuclei

János Takátsy, Bence Bécsy, Peter Raffai

Galactic nuclei are expected to be one of the main sites for formations of eccentric binary black holes (EBBHs), with an estimated detection rate of yr…

astro-ph.HE2018★ 30 cited

Substructures associated with the sloshing cold front in the Perseus cluster

Y. Ichinohe, A. Simionescu, N. Werner +2

X-ray substructures in clusters of galaxies provide indirect clues about the microphysical properties of the intracluster medium (ICM), which are still not very well known. In orde…

astro-ph.HE2018★ 26 cited

The NANOGrav 11-year Data Set: Pulse Profile Variability

P. R. Brook, A. Karastergiou, M. A. McLaughlin +30

Access to 50 years of data has led to the discovery of pulsar emission and rotation variability on timescales of months and years. Most of this long-term variability has been seen…

astro-ph.HE2018★ 901 cited

Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1138

We present results on the mass, spin, and redshift distributions with phenomenological population models using the ten binary black hole mergers detected in the first and second ob…

astro-ph.HE2018★ 3.5k cited

GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1148

We present the results from three gravitational-wave searches for coalescing compact binaries with component masses above 1 during the first and second observing…

astro-ph.HE2018★ 297 cited

The Astrophysics of Nanohertz Gravitational Waves

Sarah Burke-Spolaor, Stephen R. Taylor, Maria Charisi +12

Pulsar timing array (PTA) collaborations in North America, Australia, and Europe, have been exploiting the exquisite timing precision of millisecond pulsars over decades of observa…

astro-ph.HE2018★ 82 cited

Enrichment of the hot intracluster medium: observations

F. Mernier, V. Biffi, H. Yamaguchi +7

Four decades ago, the firm detection of an Fe-K emission feature in the X-ray spectrum of the Perseus cluster revealed the presence of iron in its hot intracluster medium (ICM). Wi…

astro-ph.HE2018★ 44 cited

A Fermi Gamma-ray Burst Monitor Search for Electromagnetic Signals Coincident with Gravitational-Wave Candidates in Advanced LIGO's First Observing Run

ray Burst Monitor Team, The LIGO Scientific Collaboration, the Virgo Collaboration +1160

We present a search for prompt gamma-ray counterparts to compact binary coalescence gravitational wave (GW) candidates from Advanced LIGO's first observing run (O1). As demonstrate…

astro-ph.HE2018★ 39 cited

Detection of polarized gamma-ray emission from the Crab nebula with Hitomi Soft Gamma-ray Detector

Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu +191

We present the results from the Hitomi Soft Gamma-ray Detector (SGD) observation of the Crab nebula. The main part of SGD is a Compton camera, which in addition to being a spectrom…

astro-ph.HE2018★ 49 cited

Constraining the p-mode--g-mode tidal instability with GW170817

The LIGO Scientific Collaboration, The Virgo Collaboration, B. P. Abbott +1136

We analyze the impact of a proposed tidal instability coupling -modes and -modes within neutron stars on GW170817. This non-resonant instability transfers energy from the orb…

astro-ph.HE2018★ 45 cited

The NANOGrav 12.5-Year Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars

M. T. Lam, M. A. McLaughlin, Z. Arzoumanian +25

Low-frequency gravitational-wave experiments require the highest timing precision from an array of the most stable millisecond pulsars. Several known sources of noise on short time…

astro-ph.HE2018★ 52 cited

PSR J2234+0611: A new laboratory for stellar evolution

K. Stovall, P. C. C. Freire, J. Antoniadis +30

We report timing results for PSR J2234+0611, a 3.6-ms pulsar in a 32-day, eccentric (e = 0.13) orbit with a helium white dwarf companion discovered as part of the Arecibo Observato…

astro-ph.HE2018★ 24 cited

Update on Testing the Isotropy of the Properties of Gamma-Ray Bursts

Jakub Řípa, Arman Shafieloo

Previously we proposed a novel method to inspect the isotropy of the properties of gamma-ray bursts (GRBs) such as their duration, fluences and peak fluxes at various energy bands…

astro-ph.HE2018★ 69 cited

Measurement Accuracy of Inspiraling Eccentric Neutron Star and Black Hole Binaries Using Gravitational Waves

László Gondán, Bence Kocsis

In a recent paper, we determined the measurement accuracy of physical parameters for eccentric, precessing, non-spinning, inspiraling, stellar-mass black hole - black hole (BH-BH)…

astro-ph.HE2018★ 30 cited

The NANOGrav 11-Year Data Set: Arecibo Observatory Polarimetry And Pulse Microcomponents

Peter A. Gentile, Maura A. McLaughlin, Paul B. Demorest +25

We present the polarization pulse profiles for 28 pulsars observed with the Arecibo Observatory by the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) timin…

astro-ph.HE2018★ 193 cited

Orbital Migration of Interacting Stellar Mass Black Holes in Disks around Supermassive Black Holes

Amy Secunda, Jillian Bellovary, Mordecai-Mark Mac Low +5

The merger rate of stellar-mass black hole binaries (sBHBs) inferred by the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) suggests the need for an efficient s…

astro-ph.HE2018★ 69 cited

Constraints on the Chemical Enrichment History of the Perseus Cluster of Galaxies from High-Resolution X-ray Spectroscopy

A. Simionescu, S. Nakashima, H. Yamaguchi +32

High-resolution spectroscopy of the core of the Perseus Cluster of galaxies, using the satellite above 2 keV and the - Reflection Grating Spectrometer at lowe…

astro-ph.HE2018★ 15 cited

Flaring radio lanterns along the ridge line: long-term oscillatory motion in the jet of S5 1803+784

E. Kun, M. Karouzos, K. É. Gabányi +3

We present a detailed analysis of 30 very long baseline interferometric observations of the BL Lac object S5 1803+784 (z=0.679), obtained between mean observational time 1994.67 an…

astro-ph.HE2018★ 16 cited

Absolute Distances to Nearby Type Ia Supernovae via Light Curve Fitting Methods

J. Vinkó, A. Ordasi, T. Szalai +22

We present a comparative study of absolute distances to a sample of very nearby, bright Type Ia supernovae (SNe) derived from high cadence, high signal-to-noise, multi-band photome…

astro-ph.HE2018★ 202 cited

GLADE: A Galaxy Catalogue for Multi-Messenger Searches in the Advanced Gravitational-Wave Detector Era

Gergely Dálya, Gábor Galgóczi, László Dobos +6

We introduce a value-added full-sky catalogue of galaxies, named as Galaxy List for the Advanced Detector Era, or GLADE. The purpose of this catalogue is to (i) help identification…

astro-ph.HE2018★ 116 cited

Tests of Gravitational Symmetries with Pulsar Binary J1713+0747

W. W. Zhu, G. Desvignes, N. Wex +50

Symmetries play an important role in modern theories of gravity. The strong equivalence principle (SEP) constitutes a collection of gravitational symmetries which are all implement…

astro-ph.HE2018★ 16 cited

Hitomi X-ray Observation of the Pulsar Wind Nebula G21.50.9

Hitomi Collaboration, Felix Aharonian, Hiroki Akamatsu +194

We present results from the Hitomi X-ray observation of a young composite-type supernova remnant (SNR) G21.50.9, whose emission is dominated by the pulsar wind nebula (PWN) cont…