activity
20242026
most citedHigh-Resolution X-Ray Spectroscopy of Interstellar Iron Toward Cygnus X-1 and GX 339-4

8 citations · 14 across the 8 of their papers we have counts for

collaborators

9 papers

astro-ph.GA2026

A first view of interstellar Fe-bearing dust grains with XRISM

I. Psaradaki, L. Corrales, E. Costantini +8

Understanding the reservoirs of iron (Fe) in our Galaxy is crucial for probing the mechanisms that drive dust grain growth in the interstellar medium (ISM). High-resolution X-ray a…

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

The Feasibility of Using Fe XXIII Metastable Transitions as a Density Diagnostic for LMXB Disk Winds

D. L. Moutard, L. R. Corrales, R. Tomaru +6

Low mass X-ray binaries (LMXBs) occasionally show signs of outflowing material from the accretion disk. Studying these outflows can inform the understanding of the geometry of the…

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.HE2025

The Structure of the Relativistic Fe Line in GX 340+0 as Viewed with XRISM/Resolve, NICER, and NuSTAR

R. M. Ludlam, R. Ballhausen, P. Chakraborty +13

We present a 152 ks XRISM/Resolve observation of the persistently accreting Z source GX 340+0. Simultaneous observations also occurred with NuSTAR and NICER for 22.47 ks and 2.7 ks…

astro-ph.GA2025★ 6 cited

XRISM insights for interstellar Sulfur

Lia Corrales, Elisa Costantini, Sascha Zeegers +15

The X-ray Imaging Spectroscopy Mission (XRISM) provides the best spectral resolution with which to study Sulfur (S) K-shell photoabsorption features from the interstellar medium (I…

astro-ph.HE2024

The XRISM/Resolve view of the Fe K region of Cyg X-3

XRISM Collaboration

The X-ray binary system Cygnus X-3 (4U 2030+40, V1521 Cyg) is luminous but enigmatic owing to the high intervening absorption. High-resolution X-ray spectroscopy uniquely probes th…

astro-ph.GA2024

Elemental abundances in the diffuse ISM from joint FUV and X-ray spectroscopy: iron, oxygen, carbon and sulfur

I. Psaradaki, L. Corrales, J. Werk +10

In this study, we investigate interstellar absorption lines along the line of sight toward the galactic low-mass X-ray binary Cygnus X-2. We combine absorption line data obtained f…

astro-ph.GA2024★ 8 cited

High-Resolution X-Ray Spectroscopy of Interstellar Iron Toward Cygnus X-1 and GX 339-4

Lia Corrales, Eric V. Gotthelf, Efrain Gatuzz +7

We present a high-resolution spectral study of Fe L-shell extinction by the diffuse interstellar medium (ISM) in the direction of the X-ray binaries Cygnus X-1 and GX 339-4, using…