activity
20192026
most citedThe Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters

45 citations · 98 across the 15 of their papers we have counts for

collaborators
Showing 2024Show all

7 papers · 1 filter

astro-ph.HE2024

A Two-Week Monitoring Campaign on Mrk 421

W. Peter Maksym, Ioannis Liodakis, M. Lynne Saade +153

X-ray polarization is a unique new probe of the particle acceleration in astrophysical jets made possible through the Imaging X-ray Polarimetry Explorer. Here we report on the firs…

astro-ph.HE2024★ 7 cited

Insights from the first flaring activity of a high-synchrotron-peaked blazar with X-ray polarization and VHE gamma rays

MAGIC Collaboration, K. Abe, S. Abe +250

We study a flaring activity of the HSP Mrk421 that was characterized from radio to very-high-energy (VHE; E TeV) gamma rays with MAGIC, Fermi-LAT, Swift, XMM-Newton and sever…

astro-ph.HE2024

Magnetic field geometry of the gamma-ray binary PSR B1259-63 revealed via X-ray polarization

Philip Kaaret, Oliver J. Roberts, Steven R. Ehlert +6

Some X-ray binaries containing an energetic pulsar in orbit around a normal star accelerate particles to high energies in the shock cone formed where the pulsar and stellar winds c…

astro-ph.HE2024

The IXPE View of Neutron Star Low-Mass X-ray Binaries

Francesco Ursini, Andrea Gnarini, Fiamma Capitanio +9

Low-mass X-ray binaries hosting weakly magnetized neutron stars (NS-LMXBs) are among the brightest sources in the X-ray sky. Since 2021, the Imaging X-ray Polarimetry Explorer (IXP…

astro-ph.HE2024

A Comparison of the X-ray Polarimetric Properties of Stellar and Supermassive Black Holes

M. Lynne Saade, Philip Kaaret, Ioannis Liodakis +1

X-ray polarization provides a new way to probe accretion geometry in black hole systems. If the accretion geometry of black holes is similar regardless of mass, we should expect th…

astro-ph.HE2024★ 11 cited

Constraining the geometry of the dipping atoll 4U 1624-49 with X-ray spectroscopy and polarimetry

Andrea Gnarini, M. Lynne Saade, Francesco Ursini +6

We present the spectro-polarimetric results obtained from simultaneous X-ray observations with IXPE, NuSTAR and NICER of the dipping neutron star X-ray binary 4U 1624-49. This sour…

astro-ph.HE2024

X-Ray Polarimetry of the Dipping Accreting Neutron Star 4U 1624-49

M. Lynne Saade, Philip Kaaret, Andrea Gnarini +98

We present the first X-ray polarimetric study of the dipping accreting neutron star 4U 162449 with the Imaging X-ray Polarimetry Explorer (IXPE). We report a detection of polari…