Catching the Post-Outburst State of the Erupting Star V1118 Ori

Details Catching the Post-Outburst State of the Erupting Star V1118 Ori Catching the Post-Outburst State of the Erupting Star V1118 Ori

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop41019a&link_type=abstract

Spitzer Proposal ID #41019

Computer Science

Scientific paper

We propose to catch the post-outburst state of the young accreting star V1118 Ori with Chandra and Spitzer. V1118 Ori underwent an optical outburst in January 2005 and has now returned to a ``quiescent'' state. Our X-ray monitoring observations have shown that the X-ray spectrum softened after the outburst, maybe due to changes in the magnetic structure near the star as a result of the increased accretion load. Our long-term monitoring indicates that the X-ray flux correlates with the optical flux, a signature that accretion can impact the X-ray emission of outbursting young stars. We propose also to obtain the post-outburst spectral energy distribution in the mid-infrared with Spitzer. We will compare the new data with those taken by us in the early phase of the outburst.

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