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View article: XUE: JWST spectroscopy of externally irradiated disks around young intermediate-mass stars
XUE: JWST spectroscopy of externally irradiated disks around young intermediate-mass stars Open
Context . Our knowledge of the initial conditions of terrestrial planet formation is mainly based on the study of protoplanetary disks around nearby isolated low-mass stars. However, most young stars and therefore planetary systems form in…
View article: XUE: The CO<sub>2</sub>-rich terrestrial planet-forming region of an externally irradiated Herbig disk
XUE: The CO<sub>2</sub>-rich terrestrial planet-forming region of an externally irradiated Herbig disk Open
Aims . We investigate the James Webb Space Telescope (JWST) MIRI MRS gas molecular content of an externally irradiated Herbig disk, the F-type XUE 10 source, in the context of the eXtreme UV Environments (XUE) program. XUE 10 belongs to th…
View article: XUE: Thermochemical Modeling Suggests a Compact and Gas-depleted Structure for a Distant, Irradiated Protoplanetary Disk
XUE: Thermochemical Modeling Suggests a Compact and Gas-depleted Structure for a Distant, Irradiated Protoplanetary Disk Open
Unveiling the physical structure of protoplanetary disks is crucial for interpreting the diversity of the exoplanet population. Until recently, the census of the physical properties of protoplanetary disks probed by mid-infrared observatio…
View article: XUE. Thermochemical Modeling Suggests a Compact and Gas-Depleted Structure for a Distant, Irradiated Protoplanetary Disk
XUE. Thermochemical Modeling Suggests a Compact and Gas-Depleted Structure for a Distant, Irradiated Protoplanetary Disk Open
Unveiling the physical structure of protoplanetary disk is crucial for interpreting the diversity of the exoplanet population. Until recently, the census of the physical properties of protoplanetary disks probed by mid-infrared observation…
View article: Spatial distribution and clustering properties of the young stellar populations in the Carina Nebula complex and Car OB1
Spatial distribution and clustering properties of the young stellar populations in the Carina Nebula complex and Car OB1 Open
Aims . We use Gaia DR3 astrometry and photometry to analyze the spatial distribution of the young stellar populations and stellar clusters and to search for new OB star candidates in the Carina Nebula complex and the full extent (∼5°, corr…
View article: Spatial distribution and clustering properties of the young stellar populations in the Carina Nebula complex and Car OB1
Spatial distribution and clustering properties of the young stellar populations in the Carina Nebula complex and Car OB1 Open
We use Gaia DR3 astrometry and photometry to analyze the spatial distribution of the young stellar populations and stellar clusters and to search for new OB star candidates in the Carina Nebula complex and the full extent of the Car OB1 as…
View article: Obscured star clusters in the inner Milky Way
Obscured star clusters in the inner Milky Way Open
Context. Milky Way star clusters provide important clues about the history of star formation in our Galaxy. However, the dust in the disk and in the innermost regions hides them from the observers. Aims. Our goal is twofold. First, to dete…
View article: Obscured star clusters in the Inner Milky Way. How many massive young clusters are still awaiting detection?
Obscured star clusters in the Inner Milky Way. How many massive young clusters are still awaiting detection? Open
Aims. Our goal is twofold. First, to detect new clusters we apply the newest methods for the detection of clustering with the best available wide-field sky surveys in the mid-infrared because they are the least affected by extinction. Seco…
View article: The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster—A Chandra HETGS Legacy Project
The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster—A Chandra HETGS Legacy Project Open
The Orion Nebula Cluster (ONC) is the closest site of very young (∼1 Myr) massive star formation The ONC hosts more than 1600 young and X-ray bright stars with masses ranging from ∼0.1–35 M ⊙ . The Chandra HETGS Orion Legacy Project observ…
View article: Climbing the Cliffs: Classifying Young Stellar Objects in the Cosmic Cliffs JWST Data Using a Probabilistic Random Forest
Climbing the Cliffs: Classifying Young Stellar Objects in the Cosmic Cliffs JWST Data Using a Probabilistic Random Forest Open
Among the first observations released to the public from the JWST was a section of the star-forming region NGC 3324 known colloquially as the “Cosmic Cliffs.” We build a photometric catalog of the region and test the ability of using the p…
View article: The population of young low-mass stars in Trumpler 14
The population of young low-mass stars in Trumpler 14 Open
Massive star-forming regions are thought to be the most common birth environments in the Galaxy and the only birth places of very massive stars. Their presence in the stellar cluster alters the conditions within the cluster, impacting at t…
View article: The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster -- A Chandra HETGS Legacy Project
The Nature of X-Rays from Young Stellar Objects in the Orion Nebula Cluster -- A Chandra HETGS Legacy Project Open
The Orion Nebula Cluster (ONC) is the closest site of very young ($\sim$ 1 Myrs) massive star formation. The ONC hosts more than 1600 young and X-ray bright stars with masses ranging from $\sim$ 0.1 to 35 $M_\odot$. The Chandra HETGS Orion…
View article: XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk
XUE: Molecular Inventory in the Inner Region of an Extremely Irradiated Protoplanetary Disk Open
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, which focuses on the characterization of planet-forming disks in massive star-forming regions. These regions are likely representa…
View article: XUE. Molecular inventory in the inner region of an extremely irradiated Protoplanetary Disk
XUE. Molecular inventory in the inner region of an extremely irradiated Protoplanetary Disk Open
We present the first results of the eXtreme UV Environments (XUE) James Webb Space Telescope (JWST) program, that focuses on the characterization of planet forming disks in massive star forming regions. These regions are likely representat…
View article: The population of young low-mass stars in Trumpler 14
The population of young low-mass stars in Trumpler 14 Open
Massive star-forming regions are thought to be the most common birth environments in the Galaxy and the only birth places of very massive stars. Their presence in the stellar cluster alters the conditions within the cluster impacting at th…
View article: Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars
Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars Open
© 2022. The Author(s). Published by the American Astronomical Society. This is an open access article distributed under the Creative Commons Attribution License, to view a copy of the license, see: https://creativecommons.org/licenses/by/4…
View article: Toward a population synthesis of disks and planets
Toward a population synthesis of disks and planets Open
Aims . We want to find the distribution of initial conditions that best reproduces disc observations at the population level. Methods . We first ran a parameter study using a 1D model that includes the viscous evolution of a gas disc, dust…
View article: Towards a population synthesis of discs and planets. II. Confronting disc models and observations at the population level
Towards a population synthesis of discs and planets. II. Confronting disc models and observations at the population level Open
Aims. We want to find the distribution of initial conditions that best reproduces disc observations at the population level. Methods. We first ran a parameter study using a 1D model that includes the viscous evolution of a gas disc, dust, …
View article: Monitoring accretion rate variability in the Orion Nebula Cluster with the Wendelstein Wide Field Imager
Monitoring accretion rate variability in the Orion Nebula Cluster with the Wendelstein Wide Field Imager Open
Context. The understanding of the accretion process has a central role in the understanding of star and planet formation. Aims. We aim to test how accretion variability influences previous correlation analyses of the relation between X-ray…
View article: Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars
Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars Open
Measuring the evolution of X-ray emission from pre-main-sequence (PMS) stars gives insight into two issues: the response of magnetic dynamo processes to changes in the interior structure, and the effects of high-energy radiation on protopl…
View article: Twinkle: a small satellite spectroscopy mission for the next phase of exoplanet science
Twinkle: a small satellite spectroscopy mission for the next phase of exoplanet science Open
With a focus on off-the-shelf components, Twinkle is the first in a series of\ncost competitive small satellites managed and financed by Blue Skies Space Ltd.\nThe satellite is based on a high-heritage Airbus platform that will carry a\n0.…
View article: Observations of PAHs in the atmospheres of discs and exoplanets
Observations of PAHs in the atmospheres of discs and exoplanets Open
Polycyclic aromatic hydrocarbons (PAHs) play a key role in the chemical and hydrodynamical evolution of the atmospheres of exoplanets and planet-forming discs. If they can survive the planet formation process, PAHs are likely to be involve…
View article: <i>Gaia</i>EDR3 distances of the young stellar clusters in the extended Carina Nebula complex
<i>Gaia</i>EDR3 distances of the young stellar clusters in the extended Carina Nebula complex Open
Context. The Carina Nebula complex (CNC) is one of the most massive and active star-forming regions in our Galaxy and it contains several large young star clusters. The distances of the individual clusters and their physical connection wer…
View article: The dispersal of protoplanetary discs – II: photoevaporation models with observationally derived irradiating spectra
The dispersal of protoplanetary discs – II: photoevaporation models with observationally derived irradiating spectra Open
Young solar-type stars are known to be strong X-ray emitters and their X-ray spectra have been widely studied. X-rays from the central star may play a crucial role in the thermodynamics and chemistry of the circumstellar material as well a…
View article: Testing the models of X-ray driven photoevaporation with accreting stars in the Orion Nebula Cluster
Testing the models of X-ray driven photoevaporation with accreting stars in the Orion Nebula Cluster Open
Context. Recent works highlight the importance of stellar X-rays on the evolution of the circumstellar disks of young stellar objects, especially for disk photoevaporation. Aims. A signature of this process may be seen in the so far tentat…
View article: Demographics of disks around young very low-mass stars and brown dwarfs in Lupus <i>(Corrigendum)</i>
Demographics of disks around young very low-mass stars and brown dwarfs in Lupus <i>(Corrigendum)</i> Open
This article is an erratum for:[https://doi.org/10.1051/0004-6361/201936913]
View article: Demographics of disks around young very low-mass stars and brown dwarfs in Lupus
Demographics of disks around young very low-mass stars and brown dwarfs in Lupus Open
We present new 890 μ m continuum ALMA observations of five brown dwarfs (BDs) with infrared excess in Lupus I and III, which in combination with four previously observed BDs allowed us to study the millimeter properties of the full known B…
View article: The imprint of X-ray photoevaporation of planet-forming discs on the orbital distribution of giant planets
The imprint of X-ray photoevaporation of planet-forming discs on the orbital distribution of giant planets Open
High-energy radiation from a planet host star can have strong influence on the final habitability of a system through several mechanisms. In this context we have constructed a catalogue containing the X-ray luminosities, as well as basic s…
View article: Surround and Squash: the impact of superbubbles on the interstellar medium in Scorpius–Centaurus OB2
Surround and Squash: the impact of superbubbles on the interstellar medium in Scorpius–Centaurus OB2 Open
Context. Feedback by massive stars shapes the interstellar medium and is thought to influence subsequent star formation. The details of this process are under debate. Aims. We exploited observational constraints on stars, gas, and nucleosy…
View article: Squeezed between shells? The origin of the Lupus I molecular cloud
Squeezed between shells? The origin of the Lupus I molecular cloud Open
\n Context. The Lupus I cloud is found between the Upper Scorpius (USco) and the Upper Centaurus-Lupus (UCL) subgroups of the Scorpius-Centaurus OB association, where the expanding USco H I shell appears to interact with a bubble currently…