Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range

Details Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010a%26a...521l..22c&link_type=abstract

Astronomy and Astrophysics, Volume 521, id.L22

Astronomy and Astrophysics

Astrophysics

21

Astrochemistry, Stars: Formation

Scientific paper

High resolution line spectra of star-forming regions are mines of information: they provide unique clues to reconstruct the chemical, dynamical, and physical structure of the observed source. We present the first results from the Herschel key project “Chemical HErschel Surveys of Star forming regions”, CHESS. We report and discuss observations towards five CHESS targets, one outflow shock spot and four protostars with luminosities bewteen 20 and 2 × 105 L_&sun;: L1157-B1, IRAS 16293-2422, OMC2-FIR4, AFGL 2591, and NGC 6334I. The observations were obtained with the heterodyne spectrometer HIFI on board Herschel, with a spectral resolution of 1 MHz. They cover the frequency range 555-636 GHz, a range largely unexplored before the launch of the Herschel satellite. A comparison of the five spectra highlights spectacular differences in the five sources, for example in the density of methanol lines, or the presence/absence of lines from S-bearing molecules or deuterated species. We discuss how these differences can be attributed to the different star-forming mass or evolutionary status.
Herschel is an ESA space observatory with science instruments provided by European-led principal Investigator consortia and with important participation from NASA.Figures [see full textsee full text]-[see full textsee full text] and Tables 3, 4 (pages 6 to 8) are only available in electronic form at http://www.aanda.org

Affiliated with

Also associated with

No associations

Rating

Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Herschel spectral surveys of star-forming regions. Overview of the 555-636 GHz range will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1401849