Contrary to common belief, the column density PDFs of molecular clouds are not described well by log-normal functions, but are instead power-laws with exponents close to two. We argue that the intrinsic functional form of the PDF cannot be securely determined below A K ∼ 0.1-0.2 mag, limiting our ability to investigate more complex models for the shape of the cloud PDF.
Molecular clouds have power-law PDFs (not log-normal) / J. Alves, M. Lombardi, C. Lada (PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION). - In: Proceedings of the International Astronomical Union[s.l] : Cambridge University Press, 2015. - pp. 706-707 (( Intervento presentato al 29. convegno IAU General Assembly [10.1017/S174392131600644X].
Molecular clouds have power-law PDFs (not log-normal)
M. LombardiSecondo
;
2015
Abstract
Contrary to common belief, the column density PDFs of molecular clouds are not described well by log-normal functions, but are instead power-laws with exponents close to two. We argue that the intrinsic functional form of the PDF cannot be securely determined below A K ∼ 0.1-0.2 mag, limiting our ability to investigate more complex models for the shape of the cloud PDF.
| File | Dimensione | Formato | |
|---|---|---|---|
|
2016 Alves.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
101.39 kB
Formato
Adobe PDF
|
101.39 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
