Author: Portas A.
Publisher: Edp Sciences
E-ISSN: 1638-1963|56|issue|129-132
ISSN: 1633-4760
Source: EAS Publications Series, Vol.56, Iss.issue, 2012-09, pp. : 129-132
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
We investigate the radial column density distribution in a sample of 9 galaxies taken from the THINGS survey. The HI data have been used to probe the extent of the neutral (atomic) gas disks down to column densities of less than 0.1 ℳ⊙ pc−2. The size of the disks might be set simply by the amount of available gas that has contributed to the formation of the galaxy or truncated by ionisation by the extragalactic radiation field once the HI column density has dropped below a certain threshold.
Related content
Percolation on hypergraphs with four-edges
By Ziff Robert M Ziff Robert M
Journal of Physics A: Mathematical and Theoretical, Vol. 48, Iss. 40, 2015-10 ,pp. :
Casimir effect: Edges and diffraction
Journal of Physics: Conference Series , Vol. 343, Iss. 1, 2012-02 ,pp. :
Astronomy & Astrophysics, Vol. 481, Iss. 3, 2008-04 ,pp. :
By Marder M. Sharon E. Smith S. Roman B.
EPL (EUROPHYSICS LETTERS), Vol. 62, Iss. 4, 2010-03 ,pp. :