G. R. Sivakoff

Radio Properties of RS Canum Venaticorum Variables in VLASS and RACS

Suhasini S. Rao, G. R. Sivakoff, Craig O. Heinke, S. Arumugam et autres

We performed a systematic search for radio emission from RS Canum Venaticorum (RS CVn) binaries, selected from the International Variable Star Index (VSX) catalog, in the Very Large Array Sky Survey (VLASS; three epochs) and Rapid ASKAP Continuum Survey (RACS; two epochs) …

ca, us, au (code pays fourni par la source)

A Real-Time Jet Laboratory in Swift J1727.8-1613

Callan M. Wood, J. C. A. Miller‐Jones, Arash Bahramian, S. J. Tingay et autres

Abstract Multi-wavelength observations of low-mass X-ray binaries (LMXBs) during bright outbursts reveal many details about the coupling of their inflows and outflows. However, only high angular resolution radio observations are able to resolve and track the motion and variability of individual jet …

au, it, cn, gb, nl, ca, us, ro (code pays fourni par la source)

A Broadband Search for Coherent Radio Emission in Cataclysmic Variables

Margaret Ridder, P. Barrett, C. O. Heinke, G. R. Sivakoff

Abstract Radio observations of cataclysmic variables have revealed a variety of behaviors. From some systems, we see bright unpolarized radio flares occurring during dwarf nova outbursts, consistent with synchrotron emission from jets. In others, we see highly polarized emission, restricted in frequency, …

us, ca (code pays fourni par la source)

Supplementary figures for A broadband search for coherent radio emission in cataclysmic variables

Margaret Ridder, Paul Barrett, Craig Heinke, G. R. Sivakoff

These are supplementary versions of the figures published in "A broadband search for coherent emission in radio-cataclysmic variables." There we present the 1D dynamic spectra, but here present the 2D dynamic spectra to provide an alternative look at the data for readers …

ca (code pays fourni par la source)

Supplementary figures for A broadband search for coherent radio emission in cataclysmic variables

Margaret Ridder, Paul Barrett, Craig Heinke, G. R. Sivakoff

These are supplementary versions of the figures published in "A broadband search for coherent emission in radio-cataclysmic variables." There we present the 1D dynamic spectra, but here present the 2D dynamic spectra to provide an alternative look at the data for readers …

ca (code pays fourni par la source)

VASTER: The ASKAP real-time fast-imaging pipeline – overview and discovery of two long period transients

Yuanming Wang, Dougal Dobie, Tara Murphy, E. Lenc et autres

Abstract Recent developments in widefield radio telescopes have enabled searches of a new region of parameter space in the time domain: timescales of seconds to minutes, that have been overlooked in traditional surveys. These searches have revealed a new population of sources: …

au, us, cn, ca (code pays fourni par la source)

Constraining the Jet Energetics of the Transient X-ray Binaries MAXI J1348-630 and MAXI J1820+070 through Calorimetry

Pau Bosch-Cabot, Alexandra J. Tetarenko, Erik Rosolowsky, Francesco Carotenuto et autres

We present Atacama Large Millimeter/Submillimeter Array (ALMA) observations aimed at identifying potential jet-ISM interaction sites in the vicinity of the transient black hole X-ray binaries MAXI J1348-630 and MAXI J1820+070, both of which have recently undergone an outburst, and displayed powerful large …

fr (code pays fourni par la source)

The Mid-infrared-emitting Jet in the Black Hole V404 Cygni in Quiescence

E. S. Borowski, R. I. Hynes, Qiana Hunt, Alexandra J. Tetarenko et autres

Abstract Observations of some quiescent black hole X-ray binaries have revealed an excess of mid-infrared (MIR) emission above that expected from their donor stars. In one system, V404 Cygni, this excess has been variously suggested to arise from the accretion disk, circumbinary …

us, ca, es, gb, au, it, gr (code pays fourni par la source)

The peculiar hard state behaviour of the black hole X-ray binary Swift J1727.8−1613

A.K. Hughes, Francesco Carotenuto, T D Russell, Alexandra J. Tetarenko et autres

ABSTRACT Tracking the correlation between radio and X-ray luminosities during black hole X-ray binary outbursts is a key diagnostic of the coupling between accretion inflows (traced by X-rays) and relativistic jet outflows (traced by radio). We present the radio–X-ray correlation of the …

gb, it, ca, au, us, Afrique du Sud, fr, sk, no, nl, ae, cn (code pays fourni par la source)

Catalog of Outbursts of Neutron Star Low-mass X-Ray Binaries

C. O. Heinke, Junwen Zheng, Thomas J. Maccarone, N. Degenaar et autres

Abstract Many X-ray binaries (XRBs) are transiently accreting. Having statistics on their recurrence times is helpful to address questions related to binary evolution and populations, as well as the physics of binary systems. We compile a catalog of known outbursts of 87 …

ASKAP J144834−685644: a newly discovered long period radio transient detected from radio to X-rays

Akash Anumarlapudi, D. L. Kaplan, N. Rea, Nicolas Erasmus et autres

ABSTRACT Long-period radio transients (LPTs) are an emerging group of radio transients that show periodic polarized radio bursts with periods varying from a few minutes to a few hours. Fewer than a dozen LPTs have been detected so far, and their origin …

us, es, Afrique du Sud, rs, au, ca (code pays fourni par la source)

A Multi-wavelength Characterization of the 2023 Outburst of MAXI J1807+132: Manifestations of Disk Instability and Jet Emission

Sandeep K. Rout, M. C. Baglio, A.K. Hughes, D. M. Russell et autres

Abstract Several phenomenological aspects of low-luminosity neutron star transients, such as atolls, remain poorly understood. One such source, MAXI J1807+132, entered its latest outburst in 2023 July. To thoroughly characterize this outburst, we conducted an extensive observational campaign spanning radio to X-ray …

it, ca, gb, es, fr, us, cl, sk (code pays fourni par la source)