Skip to main content Accessibility help
×
Home
Hostname: page-component-65dc7cd545-rrwn7 Total loading time: 0.206 Render date: 2021-07-25T07:29:31.180Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true, "newUsageEvents": true }

The Millennium Galaxy Catalogue: the severe attenuation of bulge flux by dusty spiral discs

Published online by Cambridge University Press:  01 July 2007

Simon P. Driver
Affiliation:
School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, KY16 8XB, Fife, U.K. email: spd3@st-and.ac.uk
Corresponding
E-mail address:
Rights & Permissions[Opens in a new window]

Abstract

Using the Millennium Galaxy Catalogue we quantify the dependency of the disc and bulge luminosity functions on galaxy inclination. Using a contemporary dust model we show that our results are consistent with galaxy discs being optically thick in their central regions (). As a consequence the measured B-band fluxes of bulges can be severely attenuated by 50% to 95% depending on disc inclination. We argue that a galaxy's optical appearance can be radically transformed by simply removing the dust, e.g. during cluster infall, with mid-type galaxies becoming earlier, redder, and more luminous. Finally we derive the mean photon escape fraction from the integrated galaxy population over the 0.1 μm to 2.1 μm range, and use this to show that the energy of starlight absorbed by dust (in our model) is in close agreement with the total far-IR emission.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2008

References

Allen, P. D. et al. 2006, MNRAS 371, 2CrossRefGoogle Scholar
Burstein, D., Haynes, M., & Faber, S. 1991, Nature 353, 515CrossRefGoogle Scholar
Byun, Y. I., Freeman, K. C., & Kylafis, N. D. 1993, ApJ 432, 114CrossRefGoogle Scholar
Disney, M. J., Davies, J. I., & Phillipps, S.MNRAS 239, 939Google Scholar
Driver, S. P. et al. 2005, MNRAS 360, 81CrossRefGoogle Scholar
Driver, S. P. et al. 2007, MNRAS 379, 1022CrossRefGoogle Scholar
Gonzalez, R. et al. 1998, ApJ 506, 152CrossRefGoogle Scholar
Liske, J. et al. 2003, MNRAS 344, 307CrossRefGoogle Scholar
Möllenhoff, C., Popescu, C. C., & Tuffs, R. J. 2006, ApJ 456, 941Google Scholar
Popescu, C. C. et al. 2000, ApJ 362, 138Google Scholar
Pierini, D. et al. 2003, ApJ 617, 1022CrossRefGoogle Scholar
Tuffs, R. J. et al. 2004, ApJ 419, 821Google Scholar
Valentijn, E. A. 1990, Nature 346, 153CrossRefGoogle Scholar
White, R. E. (III), Keel, W. C., & Conselice, C. J. 2000, ApJ 542, 761CrossRefGoogle Scholar
You have Access

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

The Millennium Galaxy Catalogue: the severe attenuation of bulge flux by dusty spiral discs
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

The Millennium Galaxy Catalogue: the severe attenuation of bulge flux by dusty spiral discs
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

The Millennium Galaxy Catalogue: the severe attenuation of bulge flux by dusty spiral discs
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *