activity
20232026
most citedEWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9

2 citations · 2 across the 5 of their papers we have counts for

collaborators

8 papers

astro-ph.GA2026

EWOCS-IX: JWST/NIRCam observations of Westerlund 2 - Identification of candidate substellar members

V. Almendros-Abad, M. G. Guarcello, K. Muzic +26

[Abridged] Investigating substellar populations in young massive clusters offers crucial insights into the formation of brown dwarfs (BDs) and the role of environmental conditions…

astro-ph.HE2026

EWOCS VII : Unveiling the faint diffuse X-ray emission in Westerlund 1

Albacete-Colombo J. F., Andersen M., De Becker M. +16

Westerlund 1 (Wd 1) is the closest supermassive star cluster to the Sun, with over 100,000 stars of all spectral types down to brown dwarfs. This population strongly heats the surr…

astro-ph.EP2026

Time-Domain Photometry and Activity Evolution of Interstellar Comet 3I/ATLAS with BHTOM

A. Fraser Gillan, Łukasz Wyrzykowski, Przemysław J. Mikołajczyk +69

Time-domain photometric monitoring is essential for characterizing cometary evolution, particularly for rare interstellar objects with limited observing opportunities. We aimed to…

astro-ph.SR2026

EWOCS-V: Is Wd1-72 a recent post-interaction WR+O binary?

C. J. K. Larkin, J. Mackey, H. Jin +14

The evolutionary origin of Wolf-Rayet (WR) stars at Solar metallicity is unclear. Single-star evolution from massive O stars, possibly via a Luminous Blue Variable phase, is challe…

astro-ph.HE2025★ 2 cited

EWOCS-IV: 1Ms ACIS Chandra observation of the supergiant B[e] star Wd1-9

K. Anastasopoulou, M. G. Guarcello, J. J. Drake +21

Supergiant B[e] (sgB[e]) stars are exceptionally rare objects, with only a handful of confirmed examples in the Milky Way. The evolutionary pathways leading to the sgB[e] phase rem…

astro-ph.SR2024

EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1

M. G. Guarcello, V. Almendros-Abad, J. B. Lovell +29

The typically large distances, extinction, and crowding of Galactic supermassive star clusters have so far hampered the identification of their very low mass members, required to e…

astro-ph.HE2024

EWOCS-II: X-ray properties of the Wolf-Rayet stars in the young Galactic super star cluster Westerlund 1

K. Anastasopoulou, M. G. Guarcello, E. Flaccomio +20

We present the most comprehensive and deepest X-ray study to date of the properties of the richest Wolf-Rayet (WR) population observed in a single stellar cluster, Westerlund 1 (Wd…

astro-ph.SR2023

EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Westerlund 1 and 2 Open Clusters Survey

M. G. Guarcello, E. Flaccomio, J. F. Albacete-Colombo +48

Context. With a mass exceeding several 10^4 solar masses and a rich and dense population of massive stars, supermassive young star clusters represent the most massive star-forming…