The central ~4' x 4' region of the Orion Nebula-OMC1 complex has been mapped with 20" resolution in well-defined bands at 30, 50, and 100 from the NASA C-141 infrared observatory. These data provide detailed information about the distribution of matter, luminosity, and temperature in ...
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In: Invited review at the high-resolution X-ray spectroscopy workshop with XMM-Newton and Chandra, MSSL, Oct 24–25, 2002. arXiv:astro-ph/0309503 (e-prints) Sana H, de Mink SE, de Koter A, Langer N, Evans CJ, Gieles M, Gosset E, Izzard RG, Le Bouquin JB, Schneider FRN (...
High Angular Resolution Determination of Extinction in the Orion Nebula The optical appearance of the Orion Nebula is significantly altered by the presence of interstellar extinction. Since Orion is high above the Galactic plan... R O'Dell,F Yusef-Zadeh - 《Astronomical Journal》 被引量: 60发表...
High-speed, highly ionized jets, knots and loops in the Trapezium cluster of the Orion nebula (M 42, NGC 1976). The existence of multiple layers in the inner Orion nebula has been revealed using data from an Atlas of spectra at 2 arcsec and 12 km s(-1) resolution. Th... J Meabur...
High-resolution transmission spectroscopy, one of the most effective methods used, has examined the atmospheres of Jupiter-like and is pushing towards the smaller, sub-Neptunian exoplanets. Numerous molecules have been detected using this technique, including [Math Processing Error]CO,H2O,TiO,HCN,CH4...
摘要: On most instruments in the past, spectroscopy was performed with the same instruments as used for photometry. Imaging proportional counters have an energy resolution of about 400eV at 1 keV and CCDs...关键词: High resolution spectroscopy ...
We aim to investigate the dense gas organisation prior to the formation of stars in sample of 7 star-forming regions within Orion. This EMERGE Early ALMA Survey includes OMC-1/-2/-3/-4 South, LDN 1641N, NGC 2023, and the Flame Nebula, all surveyed at high spatial resolution (4.5'' ...
with relatively good spectral and spatial resolution (e.g. Peeters et al., 2002b). Fig. 1 shows the combined SWS and LWS spectrum of a typical Hii region. The spectrum is dominated by recombination lines of H and fine-structure lines of C, N, O, Ne, S, Ar and Si. The lines ...
ISM: individual(Orion Nebula)stars: formationWe present the first high-resolution near-infrared images of the edge-on silhouette circumstellar disk, Orion 114-426, made using NICMOS on the Hubble Space Telescope. Images taken against the bright nebular back- ground of the ionized hydrogen Paα ...