232 citations · 1.9k across the 46 of their papers we have counts for
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The star formation history of Orion is structured and episodic
Alena Rottensteiner, João Alves, Stefan Meingast +6
The propagation of star formation throughout a molecular cloud complex can tell us much about its physical drivers and the importance of environmental versus intrinsic processes. W…
The dispersal law of young star clusters: free expansion -- A Gaia/eROSITA census of Orion and Sco--Cen
João Alves, Stefan Meingast, Alena Rottensteiner
We measure how young star clusters disperse over time in the two nearest star-forming complexes. Our sample comprises 44 \texttt{SigMA}-\textit{Gaia}-defined clusters in Orion and…
HURACAN: A comparison of stellar and interstellar proper motions inside L1688
M. Piecka, J. Alves, A. Rottensteiner +3
The assumption that molecular clouds are kinematically coupled to the young stellar populations forming within them is observationally still poorly constrained. With the transverse…
A comprehensive cluster census of Orion. An application of the Significance Mode Analysis (SigMA) algorithm
Alena Rottensteiner, Sebastian Ratzenböck, João Alves +2
Precise astrometric surveys and modern clustering algorithms are working in step to transform our view of star-forming regions. By revealing a much richer substructure than previou…
Accelerated gas flow along Ophiuchus B44 filament: Breaking Position-Position-Velocity degeneracy
J. Alves, C. Zucker, C. Lada +15
(Abridged) Stellar feedback from massive stars in the Upper-Sco has been proposed to have reshaped the gas in the nearby Ophiuchus complex. In this framework, feedback organizes th…
The First Glimpse of Water Ice Absorption Map in the Milky Way
Zhetai Cao, Biwei Jiang, Stefan Meingast
Interstellar ice plays a key role in the thermal evolution of the interstellar medium and in astrochemical pathways, yet its large-scale distribution remains poorly constrained. We…
Kinematics of young stellar objects in NGC 2024 based on infrared proper motions
Alena Rottensteiner, Monika G. Petr-Gotzens, Stefan Meingast +6
The most recently formed young stellar objects (YSOs) in active star forming regions are excellent tracers of their parent cloud motion. Their positions and dynamics provide insigh…
Toward the fabric of the Milky Way I. The density of disk streams from a local pc volume
Sebastian Ratzenböck, João Alves, Emily L. Hunt +3
We studied 12 disk streams found in a 250 pc volume in the solar neighborhood, which we define as coeval and comoving stellar structures with aspect ratios greater than 3:1…
Direct measurement of ISM proper motion with image registration
M. Piecka, L. Posch, S. Meingast +3
To date, quantification of the on-sky motion for interstellar clouds have relied on proxies such as young stellar objects (YSO) and masers. We present the first direct measurement…
Mapping water ice with infrared broadband photometry
Stefan Meingast
Interstellar ices play a fundamental role in the physical and chemical evolution of molecular clouds and star-forming regions, yet their large-scale distribution and abundance rema…
The Solar System's passage through the Radcliffe wave during the middle Miocene
E. Maconi, J. Alves, C. Swiggum +14
Context. As the Solar System orbits the Milky Way, it encounters various Galactic environments, including dense regions of the interstellar medium (ISM). These encounters can compr…
The physical properties of Cluster Chains
Laura Posch, João Alves, Nuria Mirét-Roig +5
We explore the kinematics and star formation history of the Scorpius Centaurus (Sco-Cen) OB association following the initial identification of sequential, linearly aligned chains…
An empirical isochrone archive for nearby open clusters
Alena Rottensteiner, Stefan Meingast
The ages of star clusters and co-moving stellar groups contain essential information about the Milky Way. Their special properties make them excellent tracers of galactic structure…
Most nearby young star clusters formed in three massive complexes
Cameren Swiggum, João Alves, Robert Benjamin +9
Efforts to unveil the structure of the local interstellar medium and its recent star formation history have spanned the past seventy years. Recent studies utilizing precise data fr…
The Corona Australis star formation complex is accelerating away from the Galactic plane
L. Posch, N. Miret-Roig, J. Alves +5
We study the kinematics of the recently discovered Corona Australis (CrA) chain of clusters by examining the 3D space motion of its young stars using Gaia DR3 and APOGEE-2 data. Wh…
VISIONS: The VISTA Star Formation Atlas -- I. Survey overview
Stefan Meingast, João Alves, Hervé Bouy +37
VISIONS is an ESO public survey of five nearby (d < 500 pc) star-forming molecular cloud complexes that are canonically associated with the constellations of Chamaeleon, Corona Aus…
The Solar Neighborhood in the Age of Gaia
Catherine Zucker, João Alves, Alyssa Goodman +2
Most of what we know about the formation of stars, and essentially everything we know about the formation of planets, comes from observations of our solar neighborhood within 2 kpc…
Significance Mode Analysis (SigMA) for hierarchical structures. An application to the Sco-Cen OB association
Sebastian Ratzenböck, Josefa E. Großschedl, Torsten Möller +3
We present a new clustering method, Significance Mode Analysis (SigMA), to extract co-spatial and co-moving stellar populations from large-scale surveys such as ESA Gaia. The metho…
Evidence for Radial Expansion at the Core of the Orion Complex with Gaia EDR3
Cameren Swiggum, Elena D'Onghia, João Alves +6
We present a phase-space study of two stellar groups located at the core of the Orion complex: Briceño-1 and Orion Belt Population-near (OBP-near). We identify the groups with the…
Extended stellar systems in the solar neighborhood -- V. Discovery of coronae of nearby star clusters
Stefan Meingast, João Alves, Alena Rottensteiner
In this paper, we present a novel view on the morphology and the dynamical state of 10 prominent, nearby ( 500 pc), and young (30-300 Myr) open star clusters with Gaia…
Extended stellar systems in the solar neighborhood. IV. Meingast 1: the most massive stellar stream in the solar neighborhood
S. Ratzenböck, S. Meingast, J. Alves +2
Nearby stellar streams carry unique information on the dynamical evolution and disruption of stellar systems in the Galaxy, the mass distribution in the disk, and provide unique ta…
A Galactic-scale gas wave in the Solar Neighborhood
João Alves, Catherine Zucker, Alyssa A. Goodman +6
For the past 150 years, the prevailing view of the local Interstellar Medium (ISM) was based on a peculiarity known as the Gould's Belt, an expanding ring of young stars, gas, and…
Extended stellar systems in the solar neighborhood - III. Like ships in the night: the Coma Berenices neighbor moving group
Verena Fürnkranz, Stefan Meingast, João Alves
We report the discovery of a kinematically cold group of stars, located in the immediate neighborhood of the well-known star cluster Coma Berenices (Mel 111). The new group identif…
Extended stellar systems in the solar neighborhood - II. Discovery of a nearby 120° stellar stream in Gaia DR2
Stefan Meingast, João Alves, Verena Fürnkranz
We report the discovery of a large, dynamically cold, coeval stellar stream that is currently traversing the immediate solar neighborhood at a distance of only 100 pc. The structur…