Volume 414, Number 1, January IV 2004
|Page(s)||45 - 52|
|Published online||12 January 2004|
Far Infrared mapping of NGC 891*
Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany e-mail: Cristina.Popescu@mpi-hd.mpg.de, Richard.Tuffs@mpi-hd.mpg.de
2 Research Associate, The Astronomical Institute of the Romanian Academy, Str. Cuţitul de Argint 5, Bucharest, Romania
3 University of Crete, Physics Department, PO Box 2208, 710 03 Heraklion, Crete, Greece
4 Foundation for Research and Technology-Hellas, 71110 Heraklion, Crete, Greece
5 NASA/IPAC Extragalactic Database, 770 S. Wilson Avenue, Pasadena, California 91125, USA
6 The Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Str., Pasadena, 91101 California, USA
Corresponding author: C. C. Popescu, Cristina.Popescu@mpi-hd.mpg.de
Accepted: 2 October 2003
We present deep maps of dust emission from the edge-on spiral galaxy NGC 891, obtained with the ISOPHOT instrument on board the Infrared Space Observatory in broad band filters with reference wavelengths centered on 170 and 200 m. Using new processing methods to remove the effects of detector transients from the data, we detect cold dust at high dynamic range. The observed surface brightness distribution and colour profile of the far-infrared (FIR) emission are found to be in good agreement with predictions for their counterparts derived from the model of Popescu et al. (2000a). Thus, NGC 891 is the first galaxy for which an intrinsic distribution of dust and stars could be found which simultaneously accounts for both the optical/near-IR and FIR morphologies.
Key words: galaxies: individual: NGC 891 / galaxies: spiral / galaxies: structure / ISM: dust / infrared: continuum / radiative transfer
© ESO, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.