L. Kaper
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View article: Investigating Silicate, Carbon, and Water in the Diffuse Interstellar Medium: The First Shots from WISCI
Investigating Silicate, Carbon, and Water in the Diffuse Interstellar Medium: The First Shots from WISCI Open
The dusty interstellar medium (ISM) of the Milky Way is distributed in a complex, cloudy structure. It is fundamental to the radiation balance within the Milky Way, provides a reaction surface to form complex molecules, and is the feedstoc…
View article: Origin of the Most Recently Ejected OB Runaway Star from the R136 Cluster
Origin of the Most Recently Ejected OB Runaway Star from the R136 Cluster Open
The ∼60 000 solar-mass (M_{⊙}) star cluster R136 (NGC 2070) in the Tarantula Nebula in the Large Magellanic Cloud is the host of at least 55 massive stars (M≳10M_{⊙}) which move away from the cluster at projected velocities ≥27.5 km/s. The…
View article: The <i>Gaia</i> DR2 census of the Scorpius OB2 association based on kinematic modeling
The <i>Gaia</i> DR2 census of the Scorpius OB2 association based on kinematic modeling Open
Context. The Scorpius Centaurus OB association (Sco OB2) is the nearest massive star forming region, and provides a valuable opportunity to study the outcome and progress of the star formation process in detail. Sco OB2 hosts a (pre-)main-…
View article: ALMA detections of circumstellar disks in the giant H II region M17
ALMA detections of circumstellar disks in the giant H II region M17 Open
Context . Our current understanding is that intermediate- to high-mass stars form in a way similar to low-mass stars, through disk accretion. The expected shorter formation timescales, higher accretion rates, and increasingly strong radiat…
View article: ALMA detections of circumstellar disks in the giant Hii region M17. Probing the intermediate- to high-mass pre-main-sequence population
ALMA detections of circumstellar disks in the giant Hii region M17. Probing the intermediate- to high-mass pre-main-sequence population Open
Our current understanding is that intermediate- to high-mass stars form in a way similar to low-mass stars, that is, through disk accretion. However, the physical conditions that play a role in disk formation, evolution, and the possibilit…
View article: X-Shooting ULLYSES: Massive stars at low metallicity VI. Atmosphere and mass-loss properties of O-type giants in the Small Magellanic Cloud
X-Shooting ULLYSES: Massive stars at low metallicity VI. Atmosphere and mass-loss properties of O-type giants in the Small Magellanic Cloud Open
Mass loss through a stellar wind is an important physical process that steers the evolution of massive stars and controls the properties of their end-of-life products, such as the supernova type and the mass of compact remnants. For an acc…
View article: X-Shooting ULLYSES: Massive stars at low metallicity
X-Shooting ULLYSES: Massive stars at low metallicity Open
Context. Mass loss through a stellar wind is an important physical process that steers the evolution of massive stars and controls the properties of their end-of-life products, such as the supernova type and the mass of compact remnants. T…
View article: The spectroscopic binary fraction of the young stellar cluster M17
The spectroscopic binary fraction of the young stellar cluster M17 Open
Context. Significant progress has been made toward understanding the formation of massive ( M > 8 M ⊙ ) binaries in close orbits (with periods of less than a month). Some of the observational studies leading to this progress are the detect…
View article: Properties of intermediate- to high-mass stars in the young cluster M17
Properties of intermediate- to high-mass stars in the young cluster M17 Open
Context . The outcome of the formation of massive stars is an important anchor point in the formation and evolution process of these stars. It provides insight into the physics of the assembly process, and sets the conditions for stellar e…
View article: Rapid Response Mode observations of GRB 160203A: Looking for fine-structure line variability at <i>z</i> = 3.52
Rapid Response Mode observations of GRB 160203A: Looking for fine-structure line variability at <i>z</i> = 3.52 Open
Context . Gamma-ray bursts are the most energetic known explosions. Although they fade rapidly, they give us the opportunity to measure redshift and important properties of their host galaxies. We report the photometric and spectroscopic s…
View article: MOSAIC at the ELT: a unique instrument for the largest ground-based telescope
MOSAIC at the ELT: a unique instrument for the largest ground-based telescope Open
Pelló, Roser et al.-- Full list of authors: Pelló, Roser; Puech, Mathieu; Prieto, Éric; Rodrigues, Myriam; Sanchez-Janssen, Rubén.; Dalton, Gavin B.; Ducret, Franck; El Hadi, Kacem; García-Vargas, María. L.; Lynn, Jeff; Bharmal, Nazim A.; …
View article: Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): PDS 111, an old T Tauri star with a young-looking disk
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): PDS 111, an old T Tauri star with a young-looking disk Open
Context . The interplay between T Tauri stars and their circumstellar disks, and how this impacts the onset of planet formation has yet to be established. In the last years, major progress has been made using instrumentation that probes th…
View article: Searching for stellar population in the molecular cloud GRSMC 045.49+00.04
Searching for stellar population in the molecular cloud GRSMC 045.49+00.04 Open
Understanding the characteristics of young stellar populations is essential for deriving insights into star formation processes within parent molecular clouds and the influence of massive stars. This study focuses on YSOs in the G 045.49+0…
View article: Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): PDS 111, an old T Tauri star with a young-looking disk
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): PDS 111, an old T Tauri star with a young-looking disk Open
The interplay between T Tauri stars and their circumstellar disks, and how this impacts the onset of planet formation has yet to be established. We studied a seemingly old T Tauri star, PDS 111, and its disk. We analyzed optical, infrared,…
View article: The Swift Deep Galactic Plane Survey (DGPS) Phase I Catalog
The Swift Deep Galactic Plane Survey (DGPS) Phase I Catalog Open
The Swift Deep Galactic Plane Survey (DGPS) is a Swift Key Project consisting of 380 tiled pointings covering ∼40 deg 2 of the Galactic plane between longitude 10 < ∣ l ∣ < 30 deg and latitude ∣ b ∣ < 0.5 deg. Each pointing has a 5 ks expo…
View article: Spectroscopic variability of massive pre-main-sequence stars in M17
Spectroscopic variability of massive pre-main-sequence stars in M17 Open
Context . It is a challenge to study the formation process of massive stars: their formation time is short, there are only few of them, they are often deeply embedded, and they lie at relatively large distances. Our strategy is to study th…
View article: Reproduction Package for the paper "The early evolution of young massive clusters. II. The kinematic history of NGC 6618 / M 17"
Reproduction Package for the paper "The early evolution of young massive clusters. II. The kinematic history of NGC 6618 / M 17" Open
Reproduction package for the paper "The early evolution of young massive clusters. II. The kinematic history of NGC 6618 / M 17". This reproduction package aims for open science, with the internal API designation of 'Gold' Authors: M. Stoo…
View article: The early evolution of young massive clusters
The early evolution of young massive clusters Open
Context. Characterising the outcome of the star formation process is key to understand and predict the evolution of stellar populations. Especially the fraction of massive stars in young stellar clusters is of importance as they are the do…
View article: Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable
Identification of 1RXS J165424.6-433758 as a Polar Cataclysmic Variable Open
We present the results of our X-ray, ultraviolet, and optical follow-up campaigns of 1RXS J165424.6-433758, an X-ray source detected with the Swift Deep Galactic Plane Survey. The source X-ray spectrum (Swift and NuSTAR) is described by th…
View article: Spectroscopic variability of massive pre-main-sequence stars in M17
Spectroscopic variability of massive pre-main-sequence stars in M17 Open
It is a challenge to study the formation process of massive stars: their formation time is short, they are few, often deeply embedded, and at relatively large distances. Our strategy is to study the outcome of the star formation process an…
View article: Swift Deep Galactic Plane Survey classification of Swift J170800−402551.8 as a candidate intermediate polar cataclysmic variable
Swift Deep Galactic Plane Survey classification of Swift J170800−402551.8 as a candidate intermediate polar cataclysmic variable Open
Here, we present the results of our multiwavelength campaign aimed at classifying Swift J170800−402551.8 as part of the Swift Deep Galactic Plane Survey (DGPS). We utilized Target of Opportunity (ToO) observations with the Neil Gehrels Swi…
View article: The EDIBLES survey VI. Searching for time variations of interstellar absorption features
The EDIBLES survey VI. Searching for time variations of interstellar absorption features Open
Interstellar lines observed toward stellar targets change slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening clouds. On longer timescales, the cloud's slowly changing physical …
View article: The EDIBLES survey
The EDIBLES survey Open
Context. Interstellar absorption observed toward stellar targets changes slowly over long timescales, mainly due to the proper motion of the background target relative to the intervening clouds, such that over time, different parts of the …
View article: Swift Deep Galactic Plane Survey Classification of Swift J170800$-$402551.8 as a Candidate Intermediate Polar Cataclysmic Variable
Swift Deep Galactic Plane Survey Classification of Swift J170800$-$402551.8 as a Candidate Intermediate Polar Cataclysmic Variable Open
Here, we present the results of our multi-wavelength campaign aimed at classifying \textit{Swift} J170800$-$402551.8 as part of the \textit{Swift} Deep Galactic Plane Survey (DGPS). We utilized Target of Opportunity (ToO) observations with…
View article: The Swift Deep Galactic Plane Survey (DGPS) Phase-I Catalog
The Swift Deep Galactic Plane Survey (DGPS) Phase-I Catalog Open
The Swift Deep Galactic Plane Survey is a Swift Key Project consisting of 380 tiled pointings covering 40 deg² of the Galactic Plane between longitude 10 < |l| < 30 deg and latitude |b| < 0.5 deg. Each pointing has a 5 ks exposure, yieldin…
View article: Massive pre-main-sequence stars in M17
Massive pre-main-sequence stars in M17 Open
Context. Recently much progress has been made in probing the embedded stages of massive star formation, pointing to formation scenarios that are reminiscent of a scaled-up version of low-mass star formation. However, the latest stages of m…
View article: X-Shooting ULLYSES: Massive stars at low metallicity
X-Shooting ULLYSES: Massive stars at low metallicity Open
Observations of individual massive stars, super-luminous supernovae, gamma-ray bursts, and gravitational wave events involving spectacular black hole mergers indicate that the low-metallicity Universe is fundamentally different from our ow…
View article: Massive pre-main-sequence stars in M17: $1^{\rm st}$ and $2^{\rm nd}$ overtone CO bandhead emission and the thermal infrared
Massive pre-main-sequence stars in M17: $1^{\rm st}$ and $2^{\rm nd}$ overtone CO bandhead emission and the thermal infrared Open
Recently much progress has been made in probing the embedded stages of massive star formation, pointing to formation scenarios akin to a scaled up version of low-mass star formation. However, the latest stages of massive star formation hav…
View article: New eruptive variable(s) in the RAFGL 7009S H <scp>ii</scp> region
New eruptive variable(s) in the RAFGL 7009S H <span>ii</span> region Open
Eruptions of young stellar objects (YSOs) are rare events, therefore a new outburst is always noteworthy. We present two new high-amplitude variable YSOs, J183421.85−055951.0 (#1) and J183421.39−055937.7 (#2), in the RAFGL 7009S star-formi…
View article: Extinction towards the cluster R136 in the Large Magellanic Cloud: An extinction law from the near-infrared to the ultraviolet
Extinction towards the cluster R136 in the Large Magellanic Cloud: An extinction law from the near-infrared to the ultraviolet Open
The cluster R136 in the giant star-forming region 30 Doradus in the Large Magellanic Cloud (LMC) offers a unique opportunity to resolve a stellar population in a starburst-like environment. We obtain the near-infrared to ultraviolet extinc…