SIMBAD references

W. D. Vacca and M. C. Cushing, Ames Research Center, NASA; and J. T. Rayner and T. Simon, University of Hawaii, report on a medium-resolution 0.8-4.9-micron spectrum of the near-infrared counterpart to IRAS 05436-0007 (cf. IAUC 8284), acquired on Mar. 8.25 UT using the NASA Infrared Telescope Facility (+ SpeX facility spectrograph) on Mauna Kea. The data show a broad absorption feature centered at 3.1 microns due to water ice (which has an optical depth of about 0.6) and a deep solid-state absorption at 4.7 microns of frozen CO. Also present are a number of emission lines in the Brackett and Paschen series of H I. The strong emission lines of Pa_delta and Pa_gamma exhibit prominent P-Cyg components. The CO overtone bands at 2.3 microns appear in emission, as do the Ca II infrared triplet lines at 0.85 micron. Lines of Mg I, Na I, Ca, and Fe are also seen in emission. Several He I lines present in absorption exhibit possible weak P-Cyg structure. The P-Cyg features, plus the appearance of the object in the 2MASS survey at the position of a previously known IRAS and millimeter-wave source (LMZ 12; cf. Lis et al. 1999, Ap.J. 527, 856), suggest that the current activity of the source may arise from the onset of a strong outflow or the recent breakout of a deeply embedded class-I object, rather than from an accretion episode of a young FU-Ori star.