Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Henney, W. J."'
We study the utility of the [OI] 6300$\mathring{\mathrm A}$ forbidden line for identifying and interpreting externally driven photoevaporative winds in different environments and at a range of distances. Thermally excited [OI] 6300$\mathring{\mathrm
Externí odkaz:
http://arxiv.org/abs/2211.13064
We analyze the physical conditions and chemical composition of the photoionized Herbig-Haro object HH~514, which emerges from the proplyd 170-337 in the core of the Orion Nebula. We use high-spectral resolution spectroscopy from UVES at the Very Larg
Externí odkaz:
http://arxiv.org/abs/2205.03266
Autor:
Méndez-Delgado, J. E., Henney, W. J., Esteban, C., García-Rojas, J., Mesa-Delgado, A., Arellano-Córdova, K. Z.
We analyze the physical conditions, chemical composition and other properties of the photoionized Herbig-Haro object HH~204 through Very Large Telescope (VLT) echelle spectroscopy and Hubble Space Telescope (\textit{HST}) imaging. We kinematically is
Externí odkaz:
http://arxiv.org/abs/2106.08667
Autor:
Méndez-Delgado, J. E., Esteban, C., García-Rojas, J., Henney, W. J., Mesa-Delgado, A., Arellano-Córdova, K. Z.
We present the analysis of physical conditions, chemical composition and kinematic properties of two bow shocks -HH529 II and HH529 III- of the fully photoionized Herbig-Haro object HH 529 in the Orion Nebula. The data were obtained with the Ultravio
Externí odkaz:
http://arxiv.org/abs/2101.02191
Autor:
García-Díaz, Ma. T., Steffen, W., Henney, W. J., López, J. A., García-López, F., González-Buitrago, D., Aviles, A.
We present the results of long-slit echelle spectroscopy and deep narrow-band imaging of the Owl Nebula (NGC 3587), obtained at the \textit{Observatorio Astron\'omico Nacional, San Pedro M\'artir}. These data allow us to construct an iso-velocity dat
Externí odkaz:
http://arxiv.org/abs/1806.04676
In order to study the nature, origin, and impact of turbulent velocity fluctuations in the ionized gas of the Orion Nebula, we apply a variety of statistical techniques to observed velocity cubes. The cubes are derived from high resolving power ($R \
Externí odkaz:
http://arxiv.org/abs/1608.07012
We report the first direct imaging of protoplanetary disks in the star-forming region of Carina, the most distant, massive cluster in which disks have been imaged. Using the Atacama Large Millimeter/sub-millimeter Array (ALMA), disks are observed aro
Externí odkaz:
http://arxiv.org/abs/1605.08809
Photoionization produces supra-thermal electrons, electrons with much more energy than is found in a thermalized gas at electron temperatures characteristic of nebulae. The presence of these high energy electrons may solve the long-standing t^2/ADF p
Externí odkaz:
http://arxiv.org/abs/1605.03634
Autor:
O'Dell, C. R., Ferland, G. J., Henney, W. J., Peimbert, M., Garcia-Diaz, Ma. T., Rubin, Robert H.
Recent Hubble Space Telescope images have allowed the determination with unprecedented accuracy of motions and changes of shocks within the inner Orion Nebula. These originate from collimated outflows from very young stars, some within the ionized po
Externí odkaz:
http://arxiv.org/abs/1508.03412
We investigate the scale dependence of fluctuations inside a realistic model of an evolving turbulent HII region and to what extent these may be studied observationally. We find that the multiple scales of energy injection from champagne flows and th
Externí odkaz:
http://arxiv.org/abs/1409.5838