Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.3706b&link_type=abstract
American Astronomical Society, 199th AAS Meeting, #37.06; Bulletin of the American Astronomical Society, Vol. 33, p.1361
Astronomy and Astrophysics
Astronomy
Scientific paper
We present spatially-resolved images of two pre-main-sequence binaries in Ophiuchus, DoAr24E and Elias 26, at J, H, K, and N bands. The JHK shift-and-add images were acquired in July 2001 with the NIR speckle system at the Palomar 5-meter. Diffraction-limited N-band images were acquired with JPL's MIRLIN mid-infrared camera on the same telescope. DoAr24E is a 2'' separation Infrared Companion system, whereas Elias 26 is a 1.6'' separation T-Tauri star binary. Spatially-resolved spectral energy distributions will be presented. These are used in conjunction with published near-infrared spectroscopy to derive the best currently available estimates of the luminosities, extinctions, and spectral types of the individual components. Using the coevality constraint for the formation of such close binaries, the derived source properties are used to constrain available pre-main-sequence tracks. Disk properties for each source, including disk emission variability, will also be discussed.
Barsony Mary
Koresko Chris D.
Matthews Keith
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