activity
20162026
most citedDust absorption and scattering in the silicon K-edge

43 citations · 277 across the 21 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

8 papers · 1 filter

astro-ph.HE2026

Dissecting the Nuclear Structure of NGC 5548 with XRISM. I. Physical Properties of the Highly Ionized Outflows

Missagh Mehdipour, Jon M. Miller, Jelle S. Kaastra +21

We present a detailed spectral analysis of an X-Ray Imaging and Spectroscopy Mission (XRISM) observation of the prototypical Seyfert 1 galaxy NGC 5548. XRISM's Resolve microcalorim…

astro-ph.HE2026

Dust grain chemistry in the diffuse ISM towards the black hole transient GX 339-4

I. Psaradaki, L. Corrales, E. Costantini +10

We present results on X-ray absorption and the dust grain chemistry in the diffuse interstellar medium (ISM), based on a new Cycle 25 Chandra High Energy Transmission Grating Spect…

astro-ph.HE2025

Complex Ionization and Velocity Structures in GX 340+0 X-ray Binary Revealed by XRISM

Priyanka Chakraborty, Randall Smith, Lia Corrales +11

We present the first high-resolution XRISM spectrum of the neutron star low-mass X-ray binary GX 340+0, revealing unprecedented detail in its emission and absorption features. The…

astro-ph.HE2024

Connecting dust and outflows in AGN: the intriguing case of NGC 6860

Ioanna Psaradaki, Missagh Mehdipour, Daniele Rogantini +4

Cosmic dust plays a crucial role in the evolution of galaxies, significantly influencing star formation and the interstellar medium. However, in active galactic nuclei (AGN), the r…

astro-ph.HE2022★ 31 cited

Oxygen and iron in interstellar dust: an X-ray investigation

I. Psaradaki, E. Costantini, D. Rogantini +9

Understanding the chemistry of the interstellar medium (ISM) is fundamental for the comprehension of the Galactic and stellar evolution. X-rays provide an excellent way to study th…

astro-ph.HE2020★ 18 cited

Interstellar oxygen along the line of sight of Cygnus X-2

I. Psaradaki, E. Costantini, M. Mehdipour +7

Interstellar dust permeates our Galaxy and plays an important role in many physical processes in the diffuse and dense regions of the interstellar medium. High-resolution X-ray spe…

astro-ph.HE2020★ 36 cited

Magnesium and silicon in interstellar dust: an X-ray overview

D. Rogantini, E. Costantini, S. T. Zeegers +5

The dense Galactic environment is a large reservoir of interstellar dust. Therefore, this region represents a perfect laboratory to study the properties of the cosmic dust grains.…

astro-ph.HE2017★ 40 cited

Investigating the interstellar dust through the Fe K-edge

D. Rogantini, E. Costantini, S. T. Zeegers +5

The chemical and physical properties of interstellar dust in the densest regions of the Galaxy are still not well understood. X-rays provide a powerful probe since they can penetra…