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Discovery and Timing of Millisecond Pulsars in the Globular Cluster M5 (NGC 5904) with FAST and Arecibo
Lei Zhang, Paulo C. C. Freire, Alessandro Ridolfi +29
We report on a comprehensive multi-wavelength study of the pulsars in the globular cluster (GC) M5, including the discovery of M5G, a new compact non-eclipsing "black widow" pulsar…
The nature of very-faint X-ray binaries: Near-infrared spectroscopy of 1RXH J173523.7354013 reveals a giant companion
A. W. Shaw, N. Degenaar, T. J. Maccarone +3
Very-faint X-ray binaries (VFXBs) are a sub-class of black holes and neutron stars in binaries that appear to be accreting at a very low rate. In addition to providing interesting…
From Stellar Death to Cosmic Revelations: Zooming in on Compact Objects, Relativistic Outflows and Supernova Remnants with AXIS
S. Safi-Harb, K. B. Burdge, A. Bodaghee +32
Compact objects and supernova remnants provide nearby laboratories to probe the fate of stars after they die, and the way they impact, and are impacted by, their surrounding medium…
JWST uncovers helium and water abundance variations in the bulge globular cluster NGC 6440
Mario Cadelano, Cristina Pallanca, Emanuele Dalessandro +9
We used ultra-deep observations obtained with the NIRCam aboard the James Webb Space Telescope to explore the stellar population of NGC 6440: a typical massive, obscured and contam…
A Chandra X-ray study of millisecond pulsars in the globular cluster Omega Centauri: a correlation between spider pulsar companion mass and X-ray luminosity
Jiaqi Zhao, Craig O. Heinke
Millisecond pulsars (MSPs) are faint X-ray sources commonly observed in Galactic globular clusters (GCs). In this work, we investigate 18 MSPs newly found in the GC Omega Centauri…
The dominant mechanism(s) for populating the outskirts of star clusters with neutron star binaries
Nathan W. C. Leigh, Claire S. Ye, Steffani M. Grondin +3
It has been argued that heavy binaries composed of neutron stars (NSs) and millisecond pulsars (MSPs) can end up in the outskirts of star clusters via an interaction with a massive…