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19922026
Showing 2022 · astro-ph.HEShow all

20 papers · 2 filters

astro-ph.HE2022★ 3 cited

Searching for Supernovae in HETDEX Data Release 3

J. Vinko, B. P. Thomas, J. C. Wheeler +11

We have extracted 636 spectra taken at the positions of 583 transient sources from the third Data Release of the Hobby-Eberly Telescope Dark Energy eXperiment (HETDEX). The transie…

astro-ph.HE2022★ 13 cited

Optical polarization and spectral properties of the H-poor superluminous supernovae SN 2021bnw and SN 2021fpl

F. Poidevin, C. M. B. Omand, Réka Könyves-Tóth +6

New optical photometric, spectrocopic and imaging polarimetry data are combined with publicly available data to study some of the physical properties of the two H-poor superluminou…

astro-ph.HE2022★ 19 cited

Wideband timing of the Parkes Pulsar Timing Array UWL data

Małgorzata Curyło, Timothy T. Pennucci, Matthew Bailes +14

In 2018 an ultra-wide-bandwidth low-frequency (UWL) receiver was installed on the 64-m Parkes Radio Telescope enabling observations with an instantaneous frequency coverage from 70…

astro-ph.HE2022★ 8 cited

Near-Infrared and Optical Observations of Type Ic SN 2021krf: Luminous Late-time Emission and Dust Formation

Aravind P. Ravi, Jeonghee Rho, Sangwook Park +29

We present near-infrared (NIR) and optical observations of the Type Ic supernova (SN Ic) SN 2021krf obtained between days 13 and 259 at several ground-based telescopes. The NIR spe…

astro-ph.HE2022★ 12 cited

Pre-maximum spectroscopic diversity of hydrogen-poor superluminous supernovae

Réka Könyves-Tóth

We search for the reasons behind the spectroscopic diversity of hydrogen-poor superluminous supernovae (SLSNe-I) in the pre-maximum phase. Our analysis is a continuation of the pap…

astro-ph.HE2022★ 7 cited

Parameter Distributions of Binary Black Hole Mergers Near Supermassive Black Holes as Seen by Advanced Gravitational Wave Detectors

László Gondán

The environment surrounding supermassive black holes (SMBHs) in galactic nuclei (GNs) is expected to harbour stellar-mass binary black hole (BBH) populations. These binaries were s…

astro-ph.HE2022★ 20 cited

Gravitational signal propagation in the Double Pulsar studied with the MeerKAT telescope

H. Hu, M. Kramer, D. J. Champion +16

The Double Pulsar, PSR J0737-3039A/B, has offered a wealth of gravitational experiments in the strong-field regime, all of which GR has passed with flying colours. In particular, a…

astro-ph.HE2022★ 17 cited

Radio Jet Proper-motion Analysis of Nine Distant Quasars above Redshift 3.5

Yingkang Zhang, Tao An, Sandor Frey +2

Up to now, jet kinematic studies of radio quasars have barely reached beyond the redshift range at . This significantly limits our knowledge of high-redshift jets, which can…

astro-ph.HE2022★ 28 cited

Model-based cross-correlation search for gravitational waves from the low-mass X-ray binary Scorpius X-1 in LIGO O3 data

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1692

We present the results of a model-based search for continuous gravitational waves from the low-mass X-ray binary Scorpius X-1 using LIGO detector data from the third observing run…

astro-ph.HE2022★ 5 cited

SN 2016iyc: A Type IIb supernova arising from a low-mass progenitor

Amar Aryan, S. B. Pandey, WeiKang Zheng +12

In this work, photometric and spectroscopic analyses of a very low-luminosity Type IIb supernova (SN) 2016iyc have been performed. SN 2016iyc lies near the faint end among the dist…

astro-ph.HE2022★ 15 cited

Does the GRB Duration Depend on Redshift?

I. Horvath, I. I. Racz, Z. Bagoly +2

Several hundred gamma-ray burst (GRB) redshifts have been determined to date. One of the other important properties-besides the distance-of the GRBs is the duration of the burst. I…

astro-ph.HE2022★ 31 cited

Cosmic nucleosynthesis: a multi-messenger challenge

Roland Diehl, Andreas Korn, Bruno Leibundgut +2

The origins of the elements and isotopes of cosmic material is a critical aspect of understanding the evolution of the universe. Nucleosynthesis typically requires physical conditi…

astro-ph.HE2022★ 70 cited

Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO--Virgo data

The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration +1667

We present a directed search for continuous gravitational wave (CW) signals emitted by spinning neutron stars located in the inner parsecs of the Galactic Center (GC). Compelling e…

astro-ph.HE2022★ 28 cited

Seven Years of SN 2014C: a Multi-Wavelength Synthesis of an Extraordinary Supernova

Benjamin P. Thomas, J. Craig Wheeler, Vikram V. Dwarkadas +6

SN 2014C was originally classified as a Type Ib supernova, but at phase ϕ = 127 d post-explosion strong Hα emission was observed. SN 2014C has since been observed in radio, infrare…

astro-ph.HE2022★ 7 cited

Prospects for reconstructing the gravitational-wave signals from core-collapse supernovae with Advanced LIGO-Virgo and the BayesWave algorithm

Nayyer Raza, Jess McIver, Gergely Dálya +1

Our current understanding of the core-collapse supernova explosion mechanism is incomplete, with multiple viable models for how the initial shock wave might be energized enough to…

astro-ph.HE2022★ 7 cited

The Second Catalog of Interplanetary Network Localizations of Konus Short Duration Gamma-Ray Bursts

D. Svinkin, K. Hurley, A. Ridnaia +72

We present the catalog of Interplanetary Network (IPN) localizations for 199 short-duration gamma-ray bursts (sGRBs) detected by the Konus-Wind (KW) experiment between 2011 January…

astro-ph.HE2022★ 16 cited

Nebular-Phase Spectra of Type Ia Supernovae from the Las Cumbres Observatory Global Supernova Project

M. L. Graham, T. D. Kennedy, S. Kumar +17

The observed diversity in Type Ia supernovae (SNe Ia) -- the thermonuclear explosions of carbon-oxygen white dwarf stars used as cosmological standard candles -- is currently met w…

astro-ph.HE2022★ 344 cited

The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background

J. Antoniadis, Z. Arzoumanian, S. Babak +123

We searched for an isotropic stochastic gravitational wave background in the second data release of the International Pulsar Timing Array, a global collaboration synthesizing decad…

astro-ph.HE2022★ 21 cited

Probing into emission mechanisms of GRB 190530A using time-resolved spectra and polarization studies: Synchrotron Origin?

Rahul Gupta, S. Gupta, T. Chattopadhyay +47

Multi-pulsed GRB 190530A, detected by the GBM and LAT onboard \fermi, is the sixth most fluent GBM burst detected so far. This paper presents the timing, spectral, and polarimetric…

astro-ph.HE2022★ 5 cited

Wide-band timing of GMRT discovered millisecond pulsars

Shyam S. Sharma, Jayanta Roy, Bhaswati Bhattacharyya +6

Modeling of frequency-dependent effects, contributed by the turbulence in the free electron density of interstellar plasma, is required to enable the detection of the expected impr…