782 datasets found

We seek to understand how the 4.8GHz formaldehyde absorption line is distributed in the MON R2, S156, DR17/L906, and M17/M18 regions. More specifically, we look for the...

The CrA region and the Coronet cluster form a nearby (138pc), young (1-2Myr) star-forming region that hosts a moderate population of Class I, II, and III objects. We study the...

Because of their short evolutionary time-scales, the earliest stages of high-mass star formation prior to the existence of any embedded heating source have barely been...

Core condensation is a critical step in the star-formation process, but it is still poorly characterized observationally. We have studied the 10pc-long L1495/B213 complex in...

Samples of pristine solar system material found in meteorites and interplanetary dust particles are highly enriched in ^15^N. Conspicuous nitrogen isotopic anomalies have also...

We wish to map the magnetic field geometry and to study the dust properties of the starless cloud, L1570, using multiwavelength optical polarimetry and photometry of the stars...

The Rosette complex is a well studied region of the galactic plane which presents the apparent characteristics of a triggered star forming region. This is however still debated...

Mapping of the near-infrared (NIR) scattered light is a recent method for the study of interstellar clouds, complementing other, more commonly used methods, like dust emission...

We used the Submillimeter Array at 1.4mm to observe the blue lobe of the L1157 outflow at high spatial resolution (~3"). We detected SiO, H_2_CO, and CH_3_OH lines from several...

We present a study of cyanoacetylene (HC_3_N) and cyanodiacetylene (HC_5_N) in Orion KL, using observations from two line surveys performed with the IRAM 30-m telescope and the...

Infrared-dark clouds (IRDCs) harbor the early phases of cluster and high-mass star formation and are comprised of cold (~20K), dense (n>10^4^cm^-3^) gas. The spectral energy...

We observed molecular clouds in the giant star forming region W43. For this project we used the IRAM 30m telescope to observe the molecular emission lines ^13^CO (2-1) and...

Theoretical models and laboratory experiments show that CH_3_OH is efficiently formed on cold grain surfaces through the successive hydrogenation of CO, forming HCO and H_2_CO...

Stars are born within dense clumps of giant molecular clouds, and constitute young stellar agglomerates known as embedded clusters, which only evolve into bound open clusters...

We present an analysis of the dust continuum emission at 870um in order to investigate the mass distribution of clumps within infrared dark clouds (IRDCs). We map six IRDCs with...

L1642 is one of the two high galactic latitude (|b|>30{deg}) clouds confirmed to have active star formation. We examine the properties of this cloud, especially the...

Understanding the chemical evolution of young (high-mass) star-forming regions is a central topic in star formation research. Chemistry is employed as a unique tool 1) to...

Following the recent discovery a large population of young stars in front of the Orion Nebula we carried out an observational campaign with the DECam wide-field camera covering...

We performed SMA observations (exp. code 2009B-S032) at 1.3mm with both the most extended and compact array configurations, providing subarcsecond and high sensitivity maps of...

In this work, we perform a complete census of molecular ions with an abundance larger than ~10^-10^ in the protostellar shock L1157-B1. This allows us to study the ionization...