The evolution and simulation of the outburst from XZ tauri - A possible EXor?
|Title:||The evolution and simulation of the outburst from XZ tauri - A possible EXor?||Authors:||Coffey, Deirdre; Downes, T. P.; Ray, Thomas P.||Permanent link:||http://hdl.handle.net/10197/11155||Date:||May-2004||Online since:||2019-10-17T12:02:46Z||Abstract:||We report on multi-epoch HST/WFPC2 images of the XZ Tauri binary, and its outflow, covering the period from 1995 to 2001. Data from 1995 to 1998 have already been published in the literature. Additional images, from 1999, 2000 and 2001 are presented here. These reveal not only further dynamical and morphological evolution of the XZ Tauri outflow but also that the suspected outflow source, XZ Tauri North, has flared in EXor-type fashion, In particular our proper motion studies suggests that the recently discovered bubble-like shock, driven by the the XZ Tauri outflow, is slowing down (its tangential velocity decreasing from 146 km s-1 to 117 km s-1). We also present simulations of the outflow itself, with plausible ambient and outflow parameters, that appear to reproduce not only the dynamical evolution of the flow, but also its shape and emission line luminosity.||Funding Details:||Enterprise Ireland
European Commission - European Regional Development Fund
|metadata.dc.description.othersponsorship:||Programme for Research in Third Level Institutions (PRTLI)
Irish Higher Education Authority
|Type of material:||Journal Article||Publisher:||EDP Sciences||Journal:||Astronomy and Astrophysics||Volume:||419||Issue:||2||Start page:||593||End page:||598||Copyright (published version):||2004 ESO||Keywords:||Herbig-Haro objects; Jets; Outflows; Stars; Pre-main sequence; Formation; XZ Tau; Binaries||DOI:||10.1051/0004-6361:20034316||Language:||en||Status of Item:||Peer reviewed|
|Appears in Collections:||Physics Research Collection|
Show full item record
This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.