Seba Pérez
@sebaperez.bsky.social
Chilean astrophysicist and Dr/Prof at USACH. Planet formation and young exoplanets. Artsci interplay.
Reposted by Seba Pérez
Happy to share the European Space Agency @science.esa.int image release from our recent paper, which finds companions in the inner dust cavities of protoplanetary disks using data from the Gaia space telescope!
🐣 Found: newborn stars and planets
#ESAGaia & ALMA joined forces to study 31 baby star systems, finding hints of planets 👉 www.esa.int/ESA_Multimed...
The collage also shows our own Solar System for reference on the bottom right, as it is predicted to have looked at an age of 1 million years. 🔭 🧪
#ESAGaia & ALMA joined forces to study 31 baby star systems, finding hints of planets 👉 www.esa.int/ESA_Multimed...
The collage also shows our own Solar System for reference on the bottom right, as it is predicted to have looked at an age of 1 million years. 🔭 🧪
December 18, 2025 at 9:35 AM
Happy to share the European Space Agency @science.esa.int image release from our recent paper, which finds companions in the inner dust cavities of protoplanetary disks using data from the Gaia space telescope!
Fantastic results by @mvioque.bsky.social et al. This is an idea that we started working on a couple of years back - on time for Gaia DR4!
👉 www.esa.int/ESA_Multimed...
👉 www.esa.int/ESA_Multimed...
Gaia finds hints of planets in baby star systems
www.esa.int
December 20, 2025 at 2:18 PM
Fantastic results by @mvioque.bsky.social et al. This is an idea that we started working on a couple of years back - on time for Gaia DR4!
👉 www.esa.int/ESA_Multimed...
👉 www.esa.int/ESA_Multimed...
YEMS is hiring a postdoc to work on planet formation, exoplanet detection, high contrast imaging, and/or related topics.
🫸https://aas.org/jobregister/ad/811cf8bb
🫸https://aas.org/jobregister/ad/811cf8bb
December 4, 2025 at 2:57 PM
YEMS is hiring a postdoc to work on planet formation, exoplanet detection, high contrast imaging, and/or related topics.
🫸https://aas.org/jobregister/ad/811cf8bb
🫸https://aas.org/jobregister/ad/811cf8bb
Planet = 'A celestial spherical object, bound to a star or unbound, that lies on the fundamental planetary plane, within a mass range between 0.02 EU to 13 JU'.
Interesting paper addressing taxonomy and definitions regarding planets, beyond the -arguably problematic- IAU definition.
Interesting paper addressing taxonomy and definitions regarding planets, beyond the -arguably problematic- IAU definition.
(Re)-Defining Planets -- the Fundamental Plane of Planets
6000+ exoplanets are now detected using various techniques, with estimates of billions of planets existing in our Galaxy alone. They are called super-Earths, hot Earths, mini-Neptunes, hot Neptunes, s...
arxiv.org
June 23, 2025 at 1:32 PM
Planet = 'A celestial spherical object, bound to a star or unbound, that lies on the fundamental planetary plane, within a mass range between 0.02 EU to 13 JU'.
Interesting paper addressing taxonomy and definitions regarding planets, beyond the -arguably problematic- IAU definition.
Interesting paper addressing taxonomy and definitions regarding planets, beyond the -arguably problematic- IAU definition.
Chilean delegation at #skao2025. With A. Garufi playing double agent for Italy and Chile.
I don't think I've been to an astronomy conference with so few Chileans.
I don't think I've been to an astronomy conference with so few Chileans.
June 20, 2025 at 3:45 PM
Chilean delegation at #skao2025. With A. Garufi playing double agent for Italy and Chile.
I don't think I've been to an astronomy conference with so few Chileans.
I don't think I've been to an astronomy conference with so few Chileans.
Reposted by Seba Pérez
First science talk at #skao2025 by Antonino Garufi about studying planet formation. Centimetre observations are critical to observing the growth of pebbles in planetary disks. 🧪 🔭 📡
June 16, 2025 at 10:25 AM
First science talk at #skao2025 by Antonino Garufi about studying planet formation. Centimetre observations are critical to observing the growth of pebbles in planetary disks. 🧪 🔭 📡
New paper on #arXiv! We unveil the dynamic environment around the eruptive young star V960Mon, including signs of a fragmenting spiral arm, a new Class 0 protostar, and powerful outflows, a multi-wavelength look at planet formation in action. Led by Philipp Weber &
Núcleo Milenio YEMS
Núcleo Milenio YEMS
A Multi-Wavelength Study of the Dynamic Environment surrounding the FUor V960 Mon
The evolution of young stars and planet-forming environments is intrinsically linked to their nascent surroundings. This is particularly evident for FU Orionis (FUor) objects$-$a class of young protos...
arxiv.org
April 10, 2025 at 4:57 PM
New paper on #arXiv! We unveil the dynamic environment around the eruptive young star V960Mon, including signs of a fragmenting spiral arm, a new Class 0 protostar, and powerful outflows, a multi-wavelength look at planet formation in action. Led by Philipp Weber &
Núcleo Milenio YEMS
Núcleo Milenio YEMS
Reposted by Seba Pérez
This is why academics and universities need to speak up and push back, now: These Words Are Disappearing in the New Trump Administration www.nytimes.com/interactive/...
The Words Federal Agencies Are Discouraged From Using Under Trump
Federal agencies have issued guidance to employees on hundreds of terms to limit or avoid using. An analysis of government websites shows many of the same words being removed.
www.nytimes.com
March 8, 2025 at 12:47 PM
This is why academics and universities need to speak up and push back, now: These Words Are Disappearing in the New Trump Administration www.nytimes.com/interactive/...
Cool paper by Garufi et al today on arxiv. Expanding our knowledge of Taurus using cm wavelength. Surprisingly quite a large fraction of the emission is from dust and not only free free.
🐂🥏📡
arxiv.org/abs/2501.11686
🐂🥏📡
arxiv.org/abs/2501.11686
The centimeter emission from planet-forming disks in Taurus
The last decade has witnessed remarkable advances in the characterization of the (sub-)millimeter emission from planet-forming disks. Instead, the study of the (sub-)centimeter emission has made more ...
arxiv.org
January 22, 2025 at 4:27 PM
Cool paper by Garufi et al today on arxiv. Expanding our knowledge of Taurus using cm wavelength. Surprisingly quite a large fraction of the emission is from dust and not only free free.
🐂🥏📡
arxiv.org/abs/2501.11686
🐂🥏📡
arxiv.org/abs/2501.11686
Finally our copy of the PPVII book arrived in Chile. Gia is already devouring it.
January 11, 2025 at 7:16 PM
Finally our copy of the PPVII book arrived in Chile. Gia is already devouring it.
Happy New Year everyone here! Here's to a great 2025 full of blue skies 🔭🌌🐋🍾
January 1, 2025 at 5:12 PM
Happy New Year everyone here! Here's to a great 2025 full of blue skies 🔭🌌🐋🍾
"Shocking" results from Adolfo's team.
FU Ori keeps delivering amazing discoveries after >80 years of activity.
science.nasa.gov/missions/hub...
FU Ori keeps delivering amazing discoveries after >80 years of activity.
science.nasa.gov/missions/hub...
NASA's Hubble Finds Sizzling Details About Young Star FU Orionis - NASA Science
In 1936, astronomers saw a puzzling event in the constellation Orion: the young star FU Orionis (FU Ori) became a hundred times brighter in a matter of months. At its peak, FU Ori was intrinsically 10...
science.nasa.gov
November 22, 2024 at 2:14 PM
"Shocking" results from Adolfo's team.
FU Ori keeps delivering amazing discoveries after >80 years of activity.
science.nasa.gov/missions/hub...
FU Ori keeps delivering amazing discoveries after >80 years of activity.
science.nasa.gov/missions/hub...
Reposted by Seba Pérez
✍️ Rubin #CommissioningNotes, entry 2️⃣: when you turn it on and it works 🤌
Initial tests with Rubin's test camera, ComCam, showed the telescope was already nearly aligned before even looking at the sky — a testament to decades of work! 🔭🧪
🧵
Initial tests with Rubin's test camera, ComCam, showed the telescope was already nearly aligned before even looking at the sky — a testament to decades of work! 🔭🧪
🧵
November 20, 2024 at 6:49 PM
✍️ Rubin #CommissioningNotes, entry 2️⃣: when you turn it on and it works 🤌
Initial tests with Rubin's test camera, ComCam, showed the telescope was already nearly aligned before even looking at the sky — a testament to decades of work! 🔭🧪
🧵
Initial tests with Rubin's test camera, ComCam, showed the telescope was already nearly aligned before even looking at the sky — a testament to decades of work! 🔭🧪
🧵
"Nature is telling us that it’s very easy for her to form planets, and that’s a slap in the face for astronomers because we still don’t know how they form,”
Beautiful piece on our latest discovery.
eos.org/articles/ast...
Beautiful piece on our latest discovery.
eos.org/articles/ast...
August 29, 2023 at 8:29 PM
"Nature is telling us that it’s very easy for her to form planets, and that’s a slap in the face for astronomers because we still don’t know how they form,”
Beautiful piece on our latest discovery.
eos.org/articles/ast...
Beautiful piece on our latest discovery.
eos.org/articles/ast...