Stellar astrophysics at the University of Alicante's Avatar

Stellar astrophysics at the University of Alicante

@ua-estelar.bsky.social

Small research group specialising in young open clusters and massive stars.

33 Followers  |  23 Following  |  14 Posts  |  Joined: 17.01.2025  |  1.6915

Latest posts by ua-estelar.bsky.social on Bluesky

Post image

With the help of some enthusiastic undergrads

30.09.2025 11:25 — 👍 1    🔁 0    💬 0    📌 0
Post image

Showing the basics of spectroscopy and stellar physics to school children and their parents

30.09.2025 11:24 — 👍 1    🔁 0    💬 0    📌 0
Post image

Delante de la torre de control

24.09.2025 13:52 — 👍 1    🔁 0    💬 0    📌 0
Post image

Nos podéis encontrar en el stand 34

24.09.2025 13:51 — 👍 1    🔁 0    💬 0    📌 0
Preview
Actualidad Universitaria Ciencia para todos los públicos en la Universidad de Alicante con más de 70 actividades

web.ua.es/es/actualida...

24.09.2025 13:47 — 👍 0    🔁 0    💬 0    📌 0
Social Social

Next monday the Stellar Origins conference starts. Have an eye on our social events as well.

For young researchers in particular, there will be an event on tuesday evening. Check out our website for more information:

stellarorigins2025.univie.ac.at/social/

09.09.2025 13:05 — 👍 5    🔁 5    💬 0    📌 0
Open cluster Dolidze 25: Stellar parameters and the metallicity in the Galactic anticentre Context. The young open cluster Dolidze 25, in the direction of the Galactic anticentre, has been attributed a very low metallicity, with typical abundances between -0.5 and -0.7 dex below solar. <BR ...

Nuestro estudio de esta región en 2015 la identificó como la región de formación estelar con metalicidad estelar más baja de la Vía Láctea.

ui.adsabs.harvard.edu/abs/2015A%26...

12.09.2025 09:13 — 👍 1    🔁 0    💬 0    📌 0

Este precioso objeto se encuentra en la zona de formación estelar Sh2-284 (lo que significa que es el objeto 284 en el segundo catálogo de nebulosas que hizo Sharpless, en 1959).

12.09.2025 09:12 — 👍 1    🔁 0    💬 0    📌 0
Post image

✔️ El telescopio James Webb descubre un inmenso chorro protoestelar en los confines de la Vía Láctea

🌐 www.iaa.csic.es/noticia/tele...

11.09.2025 07:05 — 👍 4    🔁 1    💬 2    📌 1

Our work demonstrates that NGC 663 is one of the most massive young clusters in the Galaxy. Moreover, we show that the Be/X-ray binary RX J0146.9+6121 is associated to the cluster, providing - for the first time - strong constraints on the formation of such a system.

02.09.2025 11:12 — 👍 1    🔁 0    💬 0    📌 0
NGC 663 as a laboratory for massive star evolution Massive young clusters with rich populations of high-mass stars are ideal laboratories to explore their evolutionary paths. Despite being the most prominent cluster in the Perseus-arm Cas OB8 associat...

This new publication by our group contains one of the most detailed analysis of a massive open cluster in the Milky Way: ui.adsabs.harvard.edu/abs/2025MNRA...

02.09.2025 11:11 — 👍 2    🔁 1    💬 0    📌 1

Alexis Quintana, who has just moved to the Paris Observatory, led this study. We explore how Bayesian algorithms to look for star clusters behave in response to different inputs.

03.04.2025 10:34 — 👍 1    🔁 0    💬 0    📌 0

New paper from our group.

03.04.2025 10:32 — 👍 1    🔁 0    💬 0    📌 0
Figure 1

Figure 1

Figure 2

Figure 2

Figure 3

Figure 3

Figure 4

Figure 4

Quantifying the scale of star formation across the Perseus spiral arm using young clusters around Cas OB5. Alexis L. Quintana et. al. https://arxiv.org/abs/2504.01748

03.04.2025 08:43 — 👍 1    🔁 1    💬 0    📌 0
Time-lapse of the construction of the world's largest telescope
YouTube video by European Southern Observatory (ESO) Time-lapse of the construction of the world's largest telescope

youtu.be/KRcVJf0imso?...

27.02.2025 11:43 — 👍 0    🔁 0    💬 0    📌 0
Preview
EWOCS Visit the post for more.

For more of our work on Westerlund 1, check the EWOCS page (westerlund1survey.wordpress.com), or our latest paper on the topic (ui.adsabs.harvard.edu/abs/2022A%26...).

05.02.2025 14:22 — 👍 2    🔁 0    💬 0    📌 0
EWOCS-III: JWST observations of the supermassive star cluster Westerlund 1 Context. The typically large distances, extinction, and crowding of Galactic supermassive star clusters (stellar clusters more massive than 10<SUP>4</SUP> M<SUB>⊙</SUB>) have so far hampered the ident...

This work is part of the EWOCS collaboration, led by Mario Guarcello (in the photo). Check the paper here: ui.adsabs.harvard.edu/abs/2025A%26...

05.02.2025 14:13 — 👍 0    🔁 0    💬 0    📌 0
Preview
Westerlund 1, il super ammasso nell’occhio di Webb – MEDIA INAF Svelati nuovi segreti del super ammasso stellare Westerlund 1, grazie al lavoro di analisi del progetto internazionale guidato da Mario Guarcello dell’Inaf di Palermo, Ewocs, e alle osservazioni del J...

Svelati nuovi segreti del super ammasso stellare Westerlund 1, grazie al lavoro di analisi del progetto internazionale guidato da Mario Guarcello dell’Inaf di Palermo, Ewocs, e alle osservazioni del James Webb Space Telescope. I risultati saranno pubblicati su Astronomy & Astrophysics.

25.11.2024 21:27 — 👍 1    🔁 1    💬 1    📌 0
The James Webb Space Telescope's NIRCam captures a stunning view of Westerlund 1.  Thousands of stars shine brightly, their light diffracted into colorful cross patterns due to the telescope's optics.  Interstellar dust and gas glow in shades of red and orange, forming intricate nebulae.

The James Webb Space Telescope's NIRCam captures a stunning view of Westerlund 1. Thousands of stars shine brightly, their light diffracted into colorful cross patterns due to the telescope's optics. Interstellar dust and gas glow in shades of red and orange, forming intricate nebulae.

Open star cluster Westerlund 1. A home to a variety of young, massive stars.
This image was presented today on AAS Nova.
aasnova.org/2025/01/14/a...
🔭 🧪

14.01.2025 19:44 — 👍 1513    🔁 155    💬 28    📌 14
Preview
La UA abandona la red social X por falta de veracidad Las cuentas institucionales de la UA y de la rectora desaparecen de la antigua Twitter por 'una gestión carente de ética'

Universidad de #Alicante
La inteligencía no deben habitar en estercoleros.

23.01.2025 14:49 — 👍 40    🔁 15    💬 1    📌 1

@ua-estelar is following 20 prominent accounts