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High Resolution H alpha Images of the Binary Low-mass Proplyd LV 1 with the Magellan AO System
- Source :
- Wu et al. 2013, ApJ, 774, 45
- Publication Year :
- 2013
-
Abstract
- We utilize the new Magellan adaptive optics system (MagAO) to image the binary proplyd LV 1 in the Orion Trapezium at H alpha. This is among the first AO results in visible wavelengths. The H alpha image clearly shows the ionization fronts, the interproplyd shell, and the cometary tails. Our astrometric measurements find no significant relative motion between components over ~18 yr, implying that LV 1 is a low-mass system. We also analyze Large Binocular Telescope AO observations, and find a point source which may be the embedded protostar's photosphere in the continuum. Converting the H magnitudes to mass, we show that the LV 1 binary may consist of one very-low-mass star with a likely brown dwarf secondary, or even plausibly a double brown dwarf. Finally, the magnetopause of the minor proplyd is estimated to have a radius of 110 AU, consistent with the location of the bow shock seen in H alpha.<br />Comment: 12 pages, 3 figures. Published in Astrophysical Journal
Details
- Database :
- arXiv
- Journal :
- Wu et al. 2013, ApJ, 774, 45
- Publication Type :
- Report
- Accession number :
- edsarx.1308.4144
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/0004-637X/774/1/45