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/20.500.12386/25140
Title: Phosphorus-bearing Molecules in Massive Dense Cores
Authors: FONTANI, FRANCESCO 
Rivilla, V. M.
Caselli, P.
Vasyunin, A.
Palau, A.
Issue Date: 2016
Journal: THE ASTROPHYSICAL JOURNAL LETTERS 
Number: 822
Issue: 2
First Page: L30
Abstract: Phosphorus is a crucial element for the development of life, but so far P-bearing molecules have been detected only in a few astrophysical objects; hence, its interstellar chemistry is almost totally unknown. Here, we show new detections of phosphorus nitride (PN) in a sample of dense cores in different evolutionary stages of the intermediate- and high-mass star formation process: starless, with protostellar objects, and with ultracompact H II regions. All detected PN line widths are smaller than ≃5 km s<SUP>-1</SUP>, and they arise from regions associated with kinetic temperatures smaller than 100 K. Because the few previous detections reported in the literature are associated with warmer and more turbulent sources, the results of this work show that PN can arise from relatively quiescent and cold gas. This information is challenging for theoretical models that invoke either high desorption temperatures or grain sputtering from shocks to release phosphorus into the gas phase. Derived column densities are of the order of 10<SUP>11-12</SUP> cm<SUP>-2</SUP>, marginally lower than the values derived in the few high-mass star-forming regions detected so far. New constraints on the abundance of phosphorus monoxide, the fundamental unit of biologically relevant molecules, are also given. <P />Based on observations carried out with the IRAM-30 m Telescope. IRAM is supported by INSU/CNRS (France), MPG (Germany), and IGN (Spain).
URI: http://hdl.handle.net/20.500.12386/25140
URL: https://iopscience.iop.org/article/10.3847/2041-8205/822/2/L30
ISSN: 2041-8205
DOI: 10.3847/2041-8205/822/2/L30
Bibcode ADS: 2016ApJ...822L..30F
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

Files in This Item:
File Description SizeFormat
Fontani_2016_ApJL_822_L30.pdfPdf editoriale344.97 kBAdobe PDFView/Open
Show full item record

Page view(s)

29
checked on Mar 24, 2023

Download(s)

8
checked on Mar 24, 2023

Google ScholarTM

Check

Altmetric

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