Publications (10)
Mid-Infrared and Submillimeter Observations of the Illuminating Source of McNeil's Variable Nebula
Sean M. Andrews, Barry Rothberg, Theodore Simon
We present post-outburst observations of the mid-infrared spectrum and submillimeter continuum of the illuminating source of the newly-discovered McNeil's Nebula in the L1630 regio…
Low-mass binaries in the young cluster IC 348: implications for binary formation and evolution
Gaspard Duchene, Jerome Bouvier, Theodore Simon
We report on a near-infrared adaptive optics survey of a sample of 66 low-mass members of the pre-main sequence stellar cluster IC 348. We find 12 binary systems in the separation…
The High Chromospheres of the Late A Stars
Theodore Simon, Wayne B. Landsman
We report the detection of N V 1239 A transition region emission in HST/GHRS spectra of the A7 V stars, Alpha Aql and Alpha Cep. Our observations provide the first direct evidence…
Dust Stratification in Young Circumstellar Disks
T. Rettig, S. Brittain, Theodore Simon +4
We present high-resolution infrared spectra of four YSOs (T Tau N, T Tau S, RNO 91, and HL Tau). The spectra exhibit narrow absorption lines of 12CO, 13CO, and C18O as well as broa…
The White Dwarf Companions of 56 Per and HR 3643
Wayne Landsman, Theodore Simon, Pierre Bergeron
We have obtained low-dispersion IUE spectra of the stars 56 Persei (F4 V) and HR 3643 (F7 II), as part of a survey of late-type stars with a 1565 A flux excess in the TD-1 ultravio…
Warm Gas in the Inner Disks around Young Intermediate Mass Stars
Sean Brittain, Theodore Simon, Joan Najita +1
The characterization of gas in the inner disks around young stars is of particular interest because of its connection to planet formation. In order to study the gas in inner disks,…