1 / 6

PV Ceph: Young Star Caught Speeding?

PV Ceph: Young Star Caught Speeding?. Alyssa A. Goodman Harvard-Smithsonian Center for Astrophysics Héctor G. Arce Caltech. 3 light years. “Preponderance of the Evidence”. Geometry of the “HH” knots Morphology of Molecular Outflow & Star-Forming “Blob” “Wiggle” of the Jet.

miya
Download Presentation

PV Ceph: Young Star Caught Speeding?

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. PV Ceph: Young Star Caught Speeding? Alyssa A. Goodman Harvard-Smithsonian Center for Astrophysics Héctor G. Arce Caltech

  2. 3 light years “Preponderance of the Evidence” Geometry of the “HH” knots Morphology of Molecular Outflow & Star-Forming “Blob” “Wiggle” of the Jet Goodman & Arce 2004 Figure 1 PV Ceph: The Movie

  3. Simulated Formation of a Star Cluster Bate, Bonnell & Bromm 2002

  4. Optical Image of NGC 7023 Dust Emission Map “Exit wound” NGC 7023 Tom Licha, 2002 PV Ceph Goodman & Arce 2004 Ejected!?

  5. See Furlan et al. 2003? New measurements say no How often does this happen? Direct Proper Motion • RW Aur 16 km s-1, Jones & Herbig 1979 • BN object w.r.t. “I” 50 km s-1, Plambeck et al. 1995 • IRAS 16293-2422 30 km s-1, Loinard 2002 • T-Tau Sb 20 km s-1, Loinard et al. 2003 Deduced from Outflow Morphology • B5 IRS1~10 km s-1, Bally et al. 1996* • Jets in NGC 1333 & Orion clusters ~10 km s-1,Bally & Reipurth 2001* • PV Ceph 20 km s-1, Goodman & Arce 2004 *but the possibility of motion was dismissed, or not emphasized!

  6. Optical Image of NGC 7023 First Evidence for a Young Star moving at such High Speed far from a Cluster Dust Emission Map gap NGC 7023 PV Ceph Tom Licha, 2002 Young StarCaughtSpeeding Away from Home Speed=22 km/s Age=0.5 million years Goodman & Arce 2004

More Related