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Orbital- and spin-phase variability in the X-ray emission from the accreting pulsar Cen X-3
Tsubasa Tamba, Hirokazu Odaka, Atsushi Tanimoto +3
We analyzed 39 ks NuSTAR observation data of the high mass X-ray binary Cen X-3 in order to investigate the orbital- and spin-phase spectral variability. The observation covers the…
Supernova remnants: Types and evolution
Aya Bamba, Brian J. Williams
Although only a small fraction of stars end their lives as supernovae, all supernovae leave behind a supernova remnant (SNR), an expanding shock wave that interacts with the surrou…
Multi-wavelength study of the galactic PeVatron candidate LHAASO J2108+5157
S. Abe, A. Aguasca-Cabot, I. Agudo +267
LHAASO J2108+5157 is one of the few known unidentified Ultra-High-Energy (UHE) gamma-ray sources with no Very-High-Energy (VHE) counterpart, recently discovered by the LHAASO colla…
Multiwavelength Study of Dark Globule DC 314.8-5.1: Point Source Identification and Diffuse Emission Characterization
E. Kosmaczewski, L. Stawarz, C. C. Cheung +3
We present an analysis of multi-wavelength observations of the dark globule DC\,314.8--5.1, using data from the Gaia optical, 2MASS near-infrared, and WISE mid-infrared surveys, de…
On the formation of over-ionized plasma in evolved supernova remnants
Miho Katsuragawa, Shiu-Hang Lee, Hirokazu Odaka +3
One of the outstanding mysteries surrounding the rich diversity found in supernova remnants (SNRs) is the recent discovery of over-ionized or recombining plasma from a number of dy…
Spectral Break of Energetic Pulsar Wind Nebulae Detected with Wideband X-ray Observations
Aya Bamba, Shinpei Shibata, Shuta J. Tanaka +4
Pulsar wind nebulae (PWNe) are one of the most energetic galactic sources with bright emissions from radio waves to very high-energy gamma-rays. We perform wideband X-ray spectrosc…