Kinematic History of Nearby Young Stars

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

In the Solar neighborhood, devoid of giant molecular clouds and star-forming regions, stars younger than the Pleiades are found in considerable numbers, including several T Tauri stars. Some of the nearby young stars seem to be isolated field objects, others are members of loose swarms (mini-associations) of about 20 stars each, e.g., the TWA, Tucana and Horologium swarms. By tracking positions and motions of some 30 nearby young stars and 40 OB associations, clusters and kinematic groups backward in time, we find that most of the former were not dislodged from open clusters, associations or active SFR. The two best studied swarms, the β Pic and TWA are rapidly expanding. However, even in the most compact form, their size was quite large ( 20 pc), and the initial relative velocities too fast to interpret them as disintegrating non-hierarchical multiple systems. Both swarms had a fairly close passage of the Lower Centaurus Crux OB association 10-12 Myr ago, but were not parts of the Sco-Cen complex. The origin of several young stars appear to be associated with the giant complex of clouds and SFR in the Ophiuchus.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Kinematic History of Nearby Young Stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Kinematic History of Nearby Young Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Kinematic History of Nearby Young Stars will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1641386

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.