LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1088/0004-637X/768/1/1 (literal)

Alternative label

• M. L´opez-Puertas1, B.M. Dinelli2, A. Adriani3, B. Funke1, M. Garc´?a-Comas1, M. L. Moriconi4,E. D'Aversa3, C. Boersma5, and L. J. Allamandola5 (2013)
  LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE
  in The Astrophysical journal. Supplement series
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• M. L´opez-Puertas1, B.M. Dinelli2, A. Adriani3, B. Funke1, M. Garc´?a-Comas1, M. L. Moriconi4,E. D'Aversa3, C. Boersma5, and L. J. Allamandola5 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

• L'articolo è accettato e in fase di stampa. Uscira il 5 Giugno di quest'anno. (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 768 (literal)

Rivista

• ?The ?Astrophysical journal. Supplement series (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo

• 1 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1 Instituto de Astrof´?sica de Andaluc´?a (CSIC), E-18080 Granada, Spain 2 ISAC-CNR, I-40129 Bologna, Italy 3 IAPS-INAF, I-00133 Rome, Italy 4 ISAC-CNR, I-00133 Rome, Italy 5 NASA Ames Research Center, Moffett Field, CA 94035-1000, USA (literal)

Titolo

• LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE (literal)

Abstract

• In this paper, we analyze the strong unidentified emission near 3.28 µm in Titan's upper daytime atmosphere recently discovered by Dinelli et al.We have studied it by using the NASA Ames PAH IR Spectroscopic Database. The polycyclic aromatic hydrocarbons (PAHs), after absorbing UV solar radiation, are able to emit strongly near 3.3 µm. By using current models for the redistribution of the absorbed UV energy, we have explained the observed spectral feature and have derived the vertical distribution of PAHs abundances in Titan's upper atmosphere. PAHs have been found to be present in large concentrations, about 2-3 × 104 particles cm-3. The identified PAHs have 9-96 carbons, with a concentration-weighted average of 34 carbons. The mean mass is 0 amu; the mean area is about 0.53 nm2; they are formed by 10-11 rings on average, and about one-third of them contain nitrogen atoms. Recently, benzene together with light aromatic species as well as small concentrations of heavy positive and negative ions have been detected in Titan's upper atmosphere. We suggest that the large concentrations of PAHs found here are the neutral counterpart of those positive and negative ions, which hence supports the theory that the origin of Titan main haze layer is located in the upper atmosphere. (literal)

Prodotto di

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Composizione dell'atmosfera: tecniche avanzate per la misura di gas in traccia e aerosol nella atmosfera terrestre e in altri pianeti del sistema solare (TA.P02.010.007) (Modulo)

Autore CNR

• BIANCA MARIA DINELLI (Unità di personale interno)
• MARIA LUISA MORICONI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Composizione dell'atmosfera: tecniche avanzate per la misura di gas in traccia e aerosol nella atmosfera terrestre e in altri pianeti del sistema solare (TA.P02.010.007) (Modulo)

Autore CNR di

• MARIA LUISA MORICONI (Unità di personale interno)
• BIANCA MARIA DINELLI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• ?The ?Astrophysical journal. Supplement series (Rivista)