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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.

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PV Ceph: Young Star Caught Speeding?

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  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

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