Skip navigation
  • INAF logo
  • Home
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects
  • Explore by
    • Research outputs
    • Researchers
    • Organization units
    • Projects
  • Login:
    • My DSpace
    • Receive email
      updates
    • Edit Account details
  • Italian
  • English

  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/28364
Title: Astrochemical evolution along star formation: overview of the IRAM Large Program ASAI
Authors: Lefloch, Bertrand
Bachiller, R.
Ceccarelli, C.
Cernicharo, J.
CODELLA, CLAUDIO 
Fuente, A.
Kahane, C.
López-Sepulcre, A.
Tafalla, M.
Vastel, C.
Caux, E.
González-García, M.
Bianchi, E.
Gómez-Ruiz, A.
Holdship, J.
Mendoza, E.
Ospina-Zamudio, J.
PODIO, LINDA 
Quénard, D.
Roueff, E.
Sakai, N.
Viti, S.
Yamamoto, S.
Yoshida, K.
Favre, C.
Monfredini, T.
Quitián-Lara, H. M.
Marcelino, N.
Boechat-Roberty, H. M.
Cabrit, S.
Issue Date: 2018
Journal: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 
Number: 477
Issue: 4
First Page: 4792
Abstract: Evidence is mounting that the small bodies of our Solar system, such as comets and asteroids, have at least partially inherited their chemical composition from the first phases of the Solar system formation. It then appears that the molecular complexity of these small bodies is most likely related to the earliest stages of star formation. It is therefore important to characterize and to understand how the chemical evolution changes with solar-type protostellar evolution. We present here the Large Program `Astrochemical Surveys At IRAM' (ASAI). Its goal is to carry out unbiased millimetre line surveys between 80 and 272 GHz of a sample of 10 template sources, which fully cover the first stages of the formation process of solar-type stars, from pre-stellar cores to the late protostellar phase. In this paper, we present an overview of the surveys and results obtained from the analysis of the 3 mm band observations. The number of detected main isotopic species barely varies with the evolutionary stage and is found to be very similar to that of massive star-forming regions. The molecular content in O- and C-bearing species allows us to define two chemical classes of envelopes, whose composition is dominated by either (a) a rich content in O-rich complex organic molecules, associated with hot corino sources, or (b) a rich content in hydrocarbons, typical of warm carbon-chain chemistry sources. Overall, a high chemical richness is found to be present already in the initial phases of solar-type star formation.
URI: http://hdl.handle.net/20.500.12386/28364
URL: https://academic.oup.com/mnras/article-abstract/477/4/4792/4970789?redirectedFrom=fulltext
ISSN: 0035-8711
DOI: 10.1093/mnras/sty937
Bibcode ADS: 2018MNRAS.477.4792L
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

Files in This Item:
File Description SizeFormat 
1803.10292.pdfPdf editoriale1.5 MBAdobe PDFView/Open
Show full item record

Page view(s)

5
checked on Jan 17, 2021

Download(s)

2
checked on Jan 17, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are published in Open Access, unless otherwise indicated.


Explore by
  • Communities
    & Collections
  • Research outputs
  • Researchers
  • Organization units
  • Projects

Informazioni e guide per autori

https://openaccess-info.inaf.it: tutte le informazioni sull'accesso aperto in INAF

Come si inserisce un prodotto: le guide a OA@INAF

La Policy INAF sull'accesso aperto

Documenti e modelli scaricabili

Feedback
Built with DSpace-CRIS - Extension maintained and optimized by Logo 4SCIENCE