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The Origin of T Tauri X-Ray Emission: New Insights from the Chandra Orion Ultradeep Project
The Chandra Orion Ultradeep Project (COUP) provides the most comprehensive data set ever acquired on the
Exploring the Full Stellar Population of the Upper Scorpius OB Association
We investigate the stellar population and star formation history of the Upper Scorpius OB association, the most nearby region of recent massive star formation, over the full stellar mass range from
Toward Understanding Massive Star Formation
AbstractAlthough fundamental for astrophysics, the processes that produce massive stars are not well understood. Large distances, high extinction, and short timescales of critical evolutionary phases
The initial mass function 50 years later
Preface,List of Participants,Part I The IMF Concept through Time, Introduction to IMF@50, Ed, me, and the Insterstellar Medium,The IMF challenge - 25 questions, Fifty years of IMF variation: the
Low-mass star formation in the upper Scorpius OB association.
We use a large sample of about 100 low-mass pre–main-sequence (PMS) stars in the Upper Scorpius OB association to explore the star formation history and the initial mass function of this association.
A VLT/NACO survey for triple and quadruple systems among visual pre-main sequence binaries ,
Aims. This paper describes a systematic search for high-order multiplicity among wide visual Pre-Main Sequence (PMS) binaries. Methods. We conducted an Adaptive Optics survey of a sample of 58 PMS
X-Ray Properties of the Young Stellar and Substellar Objects in the IC 348 Cluster: The Chandra View
We explore the X-ray properties of the young stellar and substellar objects in the open cluster IC 348 as seen in our deep Chandra X-Ray Observatory Advanced CCD Imaging Spectrometer image. First, we
The primordial binary population. I. A near-infrared adaptive optics search for close visual companions to A star members of Scorpius OB2
We present the results of a near-infrared adaptive optics survey with the aim to detect close companions to Hipparcos members in the three subgroups of the nearby OB association Sco OB2: Upper
SOUTHERN MASSIVE STARS AT HIGH ANGULAR RESOLUTION: OBSERVATIONAL CAMPAIGN AND COMPANION DETECTION
Multiplicity is one of the most fundamental observable properties of massive O-type stars and offers a promising way to discriminate between massive star formation theories. Nevertheless, companions
EARLY SCIENCE WITH SOFIA, THE STRATOSPHERIC OBSERVATORY FOR INFRARED ASTRONOMY
The Stratospheric Observatory For Infrared Astronomy (SOFIA) is an airborne observatory consisting of a specially modified Boeing 747SP with a 2.7 m telescope, flying at altitudes as high as 13.7 km
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