Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Boonman, A. M. S."'
Publikováno v:
Astron.Astrophys. 412 (2003) 157-174
Cornerstone molecules (CO, H_2CO, CH_3OH, HCN, HNC, CN, CS, SO) were observed toward seven sub-millimeter bright sources in the Orion molecular cloud in order to quantify the range of conditions for which individual molecular line tracers provide phy
Externí odkaz:
http://arxiv.org/abs/astro-ph/0310166
Publikováno v:
Astron.Astrophys.412:133-146,2003
The sulphur chemistry in nine regions in the earliest stages of high-mass star formation is studied through single-dish submillimeter spectroscopy. The line profiles indicate that 10-50% of the SO and SO2 emission arises in high-velocity gas, either
Externí odkaz:
http://arxiv.org/abs/astro-ph/0309138
We present submillimeter observations of SO, SO2, H2S, H2CS, OCS, NS and HCS+ toward nine massive young stars. The outflow contributes ~50% to the SO and SO2 emission in 15-20'' beams, more than for CS, where it is 10%. The SO2 abundance increases fr
Externí odkaz:
http://arxiv.org/abs/astro-ph/0212325
We present detailed thermal and gas-phase chemical models for the envelope of the massive star-forming region AFGL 2591. Time- and space-dependent chemistry are used to study the physical structure proposed by van der Tak et al. (1999; 2000), and the
Externí odkaz:
http://arxiv.org/abs/astro-ph/0205292
Publikováno v:
Astron.Astrophys. 399 (2003) 1063-1072
We present a study of gas-phase H2O and CO2 toward a sample of 14 massive protostars with the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory (ISO). Modeling of the H2O spectra using a homogeneous model with a constant exc
Externí odkaz:
http://arxiv.org/abs/astro-ph/0105249
Autor:
Boonman, A. M. S., Stark, R., van der Tak, F. F. S., van Dishoeck, E. F., van der Wal, P. B., Schafer, F., de Lange, G., Laauwen, W. M.
We present observations of the v2=0 and vibrationally excited v2=1 J=9-8 rotational lines of HCN at 797 GHz toward the deeply embedded massive young stellar object GL 2591, which provide the missing link between the extended envelope traced by lower-
Externí odkaz:
http://arxiv.org/abs/astro-ph/0105219
Autor:
Boogert, A. C. A., Tielens, A. G. G. M., Ceccarelli, C., Boonman, A. M. S., van Dishoeck, E. F., Keane, J. V., Whittet, D. C. B., de Graauw, Th.
We have obtained the full 1-200 um spectrum of the low luminosity (36 Lsun) Class I protostar Elias 29 in the Rho Ophiuchi molecular cloud. It provides a unique opportunity to study the origin and evolution of interstellar ice and the interrelationsh
Externí odkaz:
http://arxiv.org/abs/astro-ph/0005030
Autor:
van Dishoeck, E. F., Black, J. H., Boogert, A. C. A., Boonman, A. M. S., Ehrenfreund, P., Gerakines, P. A., de Graauw, Th., Helmich, F. P., Keane, J. V., Lahuis, F., Schutte, W. A., Tielens, A. G. G. M., Whittet, D. C. B., Wright, C. M., van den Ancker, M. E., Blake, G. A., Creech-Eakman, M., Waters, L. B. F. M., Wesselius, P. R.
Observations of gas-phase and solid-state species toward young stellar objects (YSOs) with the spectrometers on board the Infrared Space Observatory are reviewed. The excitation and abundances of the atoms and molecules are sensitive to the changing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od________38::6447d1bf216910dd8272a2fcfd0d2377
https://resolver.caltech.edu/CaltechAUTHORS:20121002-160505684
https://resolver.caltech.edu/CaltechAUTHORS:20121002-160505684
Autor:
Johnstone, D., Boonman, A. M. S., van Dishoeck, E. F., Johnstone, D., Boonman, A. M. S., van Dishoeck, E. F.
Publikováno v:
Astronomy and Astrophysics; December 2003, Vol. 412 Issue: 1 p157-174, 18p
Autor:
Boonman, A. M. S., Doty, S. D., van Dishoeck, E. F., Bergin, E. A., Melnick, G. J., Wright, C. M., Stark, R., Boonman, A. M. S., Doty, S. D., van Dishoeck, E. F., Bergin, E. A., Melnick, G. J., Wright, C. M., Stark, R.
Publikováno v:
Astronomy and Astrophysics; August 2003, Vol. 406 Issue: 3 p937-955, 19p