Deuterium chemistry in the Orion Bar PDR - "warm" chemistry starring CH2D+ (2009)
Parise, B., Leurini, S., Schilke, P., Roueff, E., Thorwirth, S., Lis, D. C.
High levels of deuterium fractionation in gas-phase molecules are usually associated with cold regions, such as prestellar cores. Significant fractionation ratios are also observed in hot...
Extremely high velocity gas from the massive YSOs in IRAS 17233-3606 (2009)
Leurini, S., Codella, C., Zapata, L. A., Belloche, A., Stanke, T., Wyrowski, F., ...
Molecular outflows from high-mass young stellar objects provide an excellent way to study the star formation process, and investigate if they are scaled-up versions of their low-mass counterparts. We...
On the metallicity gradient of the Galactic disk (2009)
Pedicelli, S., Bono, G., Lemasle, B., Francois, P., Groenewegen, M., Lub, J., ...
Aims: The iron abundance gradient in the Galactic stellar disk provides fundamental constraints on the chemical evolution of this important Galaxy component. However the spread around the mean slope...
Resolving the molecular environment of Super Star Clusters in Henize 2-10 (2009)
Santangelo, G., Testi, L., Gregorini, L., Leurini, S., Vanzi, L., Walmsley, C. M., ...
The rate of star formation both in the Galaxy and in external galaxies should be related to the physical properties of the molecular clouds from which stars form. This is expected for the starbursts...
Menten, K. M., Guesten, R., Leurini, S., Thorwirth, S., Henkel, C., Klein, B., ...
Using the Atacama Pathfinder Experiment (APEX) telescope we have detected the rotational ground-state transitions of ortho-ammonia and ortho-water toward the redshift ~0.89 absorbing galaxy in the...
Detection of 6.7 GHz methanol absorption towards hot corinos (2008)
Pandian, J. D., Leurini, S., Menten, K. M., Belloche, A., Goldsmith, P. F.
Methanol masers at 6.7 GHz have been found exclusively towards high-mass star forming regions. Recently, some Class 0 protostars have been found to display conditions similar to what are found in hot...
Jones, P. A., Burton, M. G., Cunningham, M. R., Menten, K. M., Schilke, P., Belloche, A., ...
Using the Mopra telescope, we have undertaken a 3-mm spectral-line imaging survey of a 5 × 5 arcmin^2 area around Sgr B2. We covered almost the complete spectral range from 81.7 to 113.5 GHz, with...
Leurini, S., Hieret, C., Thorwirth, S., Wyrowski, F., Schilke, P., Menten, K. M., ...
We present molecular line observations of the massive star forming region IRAS 17233-3606 aimed at studying the molecular core associated with the source. The observations were made using the Atacama...
Jones, P. A., Burton, M. G., Cunningham, M. R., Menten, K. M., Schilke, P., Belloche, A., ...
Using the Mopra telescope, we have undertaken a 3-mm spectral-line imaging survey of a 5 x 5 arcmin^2 area around Sgr B2. We covered almost the complete spectral the range from 81.7 to 113.5 GHz,...
Multi-line (sub)millimetre observations of the high-mass proto cluster IRAS 05358+3543 (2007)
Leurini, S., Beuther, H., Schilke, P., Wyrowski, F., Zhang, Q., Menten, K. M.
Since most high- and intermediate-mass protostars are at great distance and form in clusters, high linear resolution observations are needed to investigate their physical properties. To study the gas...
Millimeter wave spectral line surveys and line mapping studies of NGC6334I and I(N) (2007)
Thorwirth, S., Walsh, A. J., Wyrowski, F., Schilke, P., Beuther, H., Hunter, T. R., ...
NGC6334I and I(N) have been observed with the Swedish-ESO Submillimetre Telescope, SEST, at wavelengths of 3, 2, and 1.3 mm. Especially NGC6334 I shows rich emission from many different molecules,...
APEX survey of southern high mass star forming regions (2007)
Hieret, C., Leurini, S., Menten, K. M., Schilke, P., Thorwirth, S., Wyrowski, F.
A systematic study of a large sample of sources, covering a wide range in galactocentric distances, masses and luminosities, is a fast and efficient way of obtaining a good overview of the different...
Dust and gas emission in the prototypical hot core G29.96-0.02 at sub-arcsecond resolution (2007)
Beuther, H., Zhang, Q., Bergin, E. A., Sridharan, T. K., Hunter, T. R., Leurini, S.
Aiming at a better understand of the physical and chemical processes in the hot molecular core stage of high-mass star formation, we observed the prototypical hot core G29.96-0.02 in the 862mu band...
Beuther, H., Leurini, S., Schilke, P., Wyrowski, F., Menten, K. M., Zhang, Q.
The young massive star-forming region IRAS05358+3543 was observed at high-spatial resolution in the continuum emission at 3.1 and 1.2mm with the Plateau de Bure Interferometer, and at 875 and 438mum...
Multi-line (sub)millimetre observations of the high-mass proto cluster IRAS 05358+3543 (2007)
Leurini, S., Beuther, H., Schilke, P., Wyrowski, F., Zhang, Q., Menten, K. M.
Context: Since most high- and intermediate-mass protostars are at great distance and form in clusters, high linear resolution observations are needed to investigate their physical properties. Aims:...
Dust and gas emission in the prototypical hot core G29.96-0.02 at sub-arcsecond resolution (2007)
Beuther, H., Zhang, Q., Bergin, E. A., Sridharan, T. K., Hunter, T. R., Leurini, S.
Aiming at a better understand of the physical and chemical processes in the hot molecular core stage of high-mass star formation, we observed the prototypical hot core G29.96-0.02 in the 862mu band...
Beuther, H., Leurini, S., Schilke, P., Wyrowski, F., Menten, K. M., Zhang, Q.
Aims.We study the small-scale structure of massive star-forming regions through interferometric observations in several (sub)mm wavelength bands. These observations resolve multiple sources, yield...
Molecular excitation in the Eagle nebula's fingers (2006)
Schuller, F., Leurini, S., Hieret, C., Menten, K. M., Philipp, S. D., Guesten, R., ...
Context: The M16 nebula is a relatively nearby Hii region, powered by O stars from the open cluster NGC 6611, which borders to a Giant Molecular Cloud. Radiation from these hot stars has sculpted...
The high velocity outflow in NGC6334I (2006)
Leurini, S., Schilke, P., Parise, B., Wyrowski, F., Guesten, R., Philipp, S.
We observed the high velocity outflow originating from NGC6334I in several CO transitions with the APEX telescope, with the goal of deriving the physical parameters of the gas. Using an LVG analysis,...
APEX 1 mm line survey of the Orion Bar (2006)
Leurini, S., Rolffs, R., Thorwirth, S., Parise, B., Schilke, P., Comito, C., ...
Unbiased molecular line surveys are a powerful tool for analyzing the physical and chemical parameters of astronomical objects and are the only means for obtaining a complete view of the molecular...
The evolutionary state of the southern dense core Cha-MMS1 (2006)
Belloche, A., Parise, B., Schilke, P., Leurini, S., Guesten, R., ...
Aims: Our goal is to set constraints on the evolutionary state of the dense core Cha-MMS1 in the Chamaeleon I molecular cloud. Methods: We analyze molecular line observations carried out with the new...
CO and CH3OH observations of the BHR71 outflows with APEX (2006)
Parise, B., Belloche, A., Leurini, S., Schilke, P., Wyrowski, F., Guesten, R.
Context : Highly-collimated outflows are believed to be the earliest stage in outflow evolution, so their study is essential for understanding the processes driving outflows. The BHR71 Bok globule is...
Synchrotron emission from the T Tauri binary system V773 Tau A (2006)
Massi, M., Forbrich, J., Menten, K. M., Torricelli-Ciamponi, G., Neidhofer, J., Leurini, S., ...
The pre-main sequence binary system V773 Tau A shows remarkable flaring activity around periastron passage. Here, we present the observation of such a flare at a wavelength of 3 mm (90 GHz) performed...
Methanol: a diagnostic tool for high-mass star-forming regions (2004)
Leurini, S., Schilke, P., Menten, K. M., Flower, D. R., Pottage, J. T.
We here present an innovative technique to handle the problem of deriving physical parameters from observed multi-line spectra of methanol, based on the simultaneous fit of all the lines with a...
Schilke, P., Leurini, S., Menten, K. M., Alcolea, J.
We report the detection of the silicon nitride (SiN) N = 2 - 1, J = 5 = 2 - 3 / 2 transition toward SgrB2( M), in absorption. Although it has been seen in a circumstellar envelope before, this is the...