Large grains in disks around young stars: ATCA observations of WW Cha, RU Lup, and CS Cha (2008)
Lommen, Dave, Maddison, Sarah, Wright, Chris, Van Dishoeck, Ewine, Wilner, David, Bourke, Tyler
Grains in disks around young stars grow from interstellar submicron sizes to planetesimals over the course of several Myr. Thermal emission of large grains or pebbles can be best observed at cm...
METIS - the Mid-infrared E-ELT Imager and Spectrograph (2008)
Brandl, Bernhard R., Lenzen, Rainer, Pantin, Eric, Glasse, Alistair, Blommaert, Joris, Venema, Lars, ...
METIS, the Mid-infrared ELT Imager and Spectrograph (formerly called MIDIR), is a proposed instrument for the European Extremely Large Telescope (E-ELT), currently undergoing a phase-A study. The...
A new look at stellar outflows : Spitzer Observations of the HH 46/47 system (2008)
Noriega-Crespo, Alberto, Morris, Patrick, Marleau, Francine R., Carey, Sean, Boogert, Adwin, Van Dishoeck, Ewine, ...
We present the Early Release Observations of the HH 46/47 system and HH 46 IRS 1 source, taken with the three instruments aboard the Spitzer Space Telescope. The optically invisible southwest lobe,...
Lommen, Dave, Jorgensen, Jes, Van Dishoeck, Ewine, Crapsi, Antonio
(abbreviated) We aim to determine the masses of the envelopes, disks, and central stars of young stellar objects (YSOs) in the Class I stage. We observed the embedded Class I objects IRS 63 and Elias...
METIS: the mid-infrared E-ELT imager and spectrograph (2008)
Brandl, Bernhard R., Lenzen, Rainer, Pantin, Eric, Glasse, Alistair, Blommaert, Joris, Venema, Lars, ...
METIS: the mid-infrared E-ELT imager and spectrograph (2008)
Brandl, Bernhard R., Lenzen, Rainer, Pantin, Eric, Glasse, Alistair, Blommaert, Joris, Venema, Lars, ...
METIS, the Mid-infrared ELT Imager and Spectrograph (formerly called MIDIR), is a proposed instrument for the European Extremely Large Telescope (E-ELT), currently undergoing a phase-A study. The...
A computer program for fast non-LTE analysis of interstellar line spectra (2007)
Van Der Tak, Floris, Black, John, Schoeier, Fredrik, Jansen, David, Van Dishoeck, Ewine
The large quantity and high quality of modern radio and infrared line observations require efficient modeling techniques to infer physical and chemical parameters such as temperature, density, and...
The H2CO abundance in the inner warm regions of low mass protostellar envelopes (2004)
Maret, Sébastien, Ceccarelli, C., Caux, Emmanuel, Tielens, Alexander, Jorgensen, Jes, Van Dishoeck, Ewine, ...
We present a survey of the formaldehyde emission in a sample of eight Class 0 protostars obtained with the IRAM and JCMT telescopes. The data have been analyzed with three different methods with...
The H2CO abundance in the inner warm regions of low mass protostellar envelopes (2004)
Maret, Sébastien, Ceccarelli, C., Caux, Emmanuel, Tielens, Alexander, Jorgensen, Jes, Van Dishoeck, Ewine, ...
We present a survey of the formaldehyde emission in a sample of eight Class 0 protostars obtained with the IRAM and JCMT telescopes. The data have been analyzed with three different methods with...
The H2CO abundance in the inner warm regions of low mass protostellar envelopes (2004)
Maret, Sébastien, Ceccarelli, C., Caux, Emmanuel, Tielens, Alexander, Jorgensen, Jes, Van Dishoeck, Ewine, ...
We present a survey of the formaldehyde emission in a sample of eight Class 0 protostars obtained with the IRAM and JCMT telescopes. The data have been analyzed with three different methods with...
On the Feasibility of Disk Chemical Modeling (2003)
Semenov, Dmitry, Pavluchenkov, Yaroslav, Henning, Thomas, Herbst, Eric, Van Dishoeck, Ewine
In this paper, we compare the results of the modeling of a protoplanetary disk chemical evolution obtained with the UMIST95 and ``New Standard Model'' (NSM) chemical databases. Assuming the same...
The H2CO abundance in the inner warm regions of low mass protostellar envelopes (2003)
Maret, Sébastien, Ceccarelli, C., Caux, Emmanuel, Tielens, Alexander, Jorgensen, Jes, Van Dishoeck, Ewine, ...
We present a survey of the formaldehyde emission in a sample of eight Class 0 protostars obtained with the IRAM and JCMT telescopes. The data have been analyzed with three different methods with...
Line emission from circumstellar disks around A stars (2002)
Kamp, Inga, Van Zadelhoff, Gerd-Jan, Van Dishoeck, Ewine, Stark, Ronald
The nature of the tenuous disks around A stars has raised considerable controversy in the literature during the past decade. The debate whether or not the disk around beta Pictoris contains gaseous...
The Abundance and Emission of H2O and O2 in Clumpy Molecular Clouds (2000)
Spaans, Marco, Van Dishoeck, Ewine
Recent observations with the Submillimeter Wave Astronomy Satellite indicate abundances of gaseous H2O and O2 in dense molecular clouds which are significantly lower than found in standard...