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Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
We present an analysis of the intrinsic colors and temperatures of 5-30 Myr old pre-main sequence (pre-MS) stars using the F0 through M9 type members of nearby, negligibly reddened groups: η ChaExpand
A REVISED AGE FOR UPPER SCORPIUS AND THE STAR FORMATION HISTORY AMONG THE F-TYPE MEMBERS OF THE SCORPIUS-CENTAURUS OB ASSOCIATION
We present an analysis of the ages and star formation history of the F-type stars in the Upper Scorpius (US), Upper Centaurus-Lupus (UCL), and Lower Centaurus-Crux (LCC) subgroups ofExpand
The star formation history and accretion-disc fraction among the K-type members of the Scorpius–Centaurus OB association
We present results of a spectroscopic survey for new K- and M-type members of Scorpius-Centaurus (Sco-Cen), the nearest OB Association (~100-200 pc). Using an X-ray, proper motion and color-magnitudeExpand
A MAGELLAN MIKE AND SPITZER MIPS STUDY OF 1.5-1.0 M ☉ STARS IN SCORPIUS-CENTAURUS
We obtained Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) 24 μm and 70 μm observations of 182 nearby, Hipparcos F- and G-type common proper motion single and binary systemsExpand
PLANETARY CONSTRUCTION ZONES IN OCCULTATION: DISCOVERY OF AN EXTRASOLAR RING SYSTEM TRANSITING A YOUNG SUN-LIKE STAR AND FUTURE PROSPECTS FOR DETECTING ECLIPSES BY CIRCUMSECONDARY AND CIRCUMPLANETARY
The large relative sizes of circumstellar and circumplanetary disks imply that they might be seen in eclipse in stellar light curves. We estimate that a survey of ~104 young (~10 million year old)Expand
A Spitzer MIPS Study of 2.5-2.0 M ☉ Stars in Scorpius-Centaurus
We have obtained Spitzer Space Telescope Multiband Imaging Photometer for Spitzer (MIPS) 24 μm and 70 μm observations of 215 nearby, Hipparcos B- and A-type common proper-motion single and binaryExpand
DOES THE DEBRIS DISK AROUND HD 32297 CONTAIN COMETARY GRAINS
We present an adaptive optics imaging detection of the HD 32297 debris disk at L' (3.8 ?m) obtained with the LBTI/LMIRcam infrared instrument at the Large Binocular Telescope. The disk is detected atExpand
NEW YOUNG STARS AND BROWN DWARFS IN THE UPPER SCORPIUS ASSOCIATION.
TLDR
To improve the census of the Upper Sco association, candidate members are identified using parallaxes, proper motions, and color-magnitude diagrams from several wide-field imaging surveys and optical and infrared spectra of several hundred candidates are obtained to measure their spectral types and assess their membership. Expand
Near-Earth Supernova Explosions: Evidence, Implications, and Opportunities
There is now solid experimental evidence of at least one supernova explosion within 100 pc of Earth within the last few million years, from measurements of the short-lived isotope 60Fe in widespreadExpand
Supernova Ejecta in Ocean Cores Used as Time Constraints for Nearby Stellar Groups
Evidence of a supernova event, discussed in Wallner et al., was discovered in the deep-sea crusts with two signals dating back to 2-3 and 7-9 Myr ago. In this contribution, we place constraints onExpand
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