3D Astrophysics Newsletter: 1.1

This is the first individual edition of the 3DA Newsletter. Individual submissions are send promptly as blog entries. Every two months a complete newsletter will be published with all submissions to this edition.


 

Redshift evolution of the space density of AGN with Lx > 1e43.2 erg/s, for various column densities

Redshift evolution of the space density of AGN with Lx > 1e43.2 erg/s, for various column densities

Obscuration-dependent evolution of Active Galactic Nuclei

J. Buchner, A. Georgakakis, K. Nandra, M. Brightman,
Ma.-L. Menzel, Z. Liu, Li-T. Hsu,
M. Salvato, C. Rangel, J. Aird,
A. Merloni, N. Ross

This work presents a Bayesian non-parametric method to reconstruct a smooth field. It is applied to reconstruct the space density of AGN as a function of X-ray luminosity, redshift and obscuring column density, all of which contribute severe selection biases. This method can be applied to a wide variety of 3D data sets (e.g. IFU spectral line fitting) to reconstruct the behaviour of a quantity and its uncertainty while only assuming smoothness across the field.

URL of preprint: http://arxiv.org/abs/1501.02805
Comments: The Astrophysical Journal, in press
Submitted by: Johannes Buchner

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s