98 citations · 230 across the 10 of their papers we have counts for
11 papers
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…
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…
The velocity field of the Scorpius-Centaurus OB association
S. Hutschenreuter, J. Alves, L. Posch +5
We present a non-parametric reconstruction of the three-dimensional velocity field of the Scorpius-Centaurus OB association (Sco- Cen). Using Gaia DR3 astrometry and radial velocit…
The late Miocene Be anomaly and the possibility of a supernova
E. Maconi, J. Alves, J. Großschedl +3
Recent measurements of cosmogenic Be in deep-ocean ferromanganese crusts from the Central and Northern Pacific have revealed an anomalous concentration between 11.5 and 9.0…
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…
New ACV variables discovered in the Zwicky Transient Facility survey
B. Bauer-Fasching, K. Bernhard, E. Brändli +8
The manifestation of surface spots on magnetic chemically peculiar (mCP) stars is most commonly explained by the atomic diffusion theory, which requires a calm stellar atmosphere a…
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 star formation history of the Sco-Cen association. Coherent star formation patterns in space and time
Sebastian Ratzenböck, Josefa E. Großschedl, João Alves +13
We reconstruct the star formation history of the Sco-Cen OB association using a novel high-resolution age map of the region. We develop an approach to produce robust ages for Sco-C…
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…
The Oph region revisited with Gaia EDR3
Natalie Grasser, Sebastian Ratzenböck, João Alves +10
Context. Young and embedded stellar populations are important probes of the star formation process. Paradoxically, we have a better census of nearby embedded young populations than…