Skip to main content Accessibility help
×
Home
Hostname: page-component-559fc8cf4f-8sgpw Total loading time: 0.389 Render date: 2021-03-04T17:10:19.788Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": false, "newCiteModal": false, "newCitedByModal": true }

The structure of the nuclear stellar cluster of the Milky Way

Published online by Cambridge University Press:  01 August 2006

Rainer Schödel
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany email: rainer@ph1.uni-koeln.de
Andreas Eckart
Affiliation:
I. Physikalisches Institut, Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany email: rainer@ph1.uni-koeln.de Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germanyeckart@ph1.uni-koeln.de
Corresponding
Rights & Permissions[Opens in a new window]

Abstract

High-resolution adaptive optics observations of the inner 0.5 pc of the Milky Way with multiple intermediate band filters are presented. From the images, stellar number counts and a detailed map of the interstellar extinction were extracted. The extinction map is consistent with a putative southwest-northeast aligned outflow from the central arcseconds.

An azimuthally averaged, crowding and extinction corrected stellar density profile presents clear evidence for the existence of a stellar cusp around Sgr A*. Several density peaks are found in the cluster that may indicate clumping of stars, possibly related to the last epoch of star formation in the Galactic Center. An analysis of stars in the brightness range 14.25 < magK < 15.75 shows possible signs of mass segregation.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

References

Schödel, R., Ott, T., Genzel, R. et al. 2003, ApJ, 596, 1015CrossRefGoogle Scholar
Ghez, A. M., Duchêne, G., Matthews, K et al. . 2003, ApJ, 586, L127CrossRefGoogle Scholar
Eisenhauer, F., Genzel, R., Alexander, T. et al. 2005, ApJ, 628, 246CrossRefGoogle Scholar
Bahcall, J. N. & Wolf, R. A. 1976, ApJ, 209, 214CrossRefGoogle Scholar
Bahcall, J. N. & Wolf, R. A. 1977, ApJ, 216, 883CrossRefGoogle Scholar
Lightman, A. P. & Shapiro, S. L. 1977, ApJ, 211, 244CrossRefGoogle Scholar
Murphy, B. W., Cohn, H. N. & Durisen, R. H. 1991, ApJ, 370, 60CrossRefGoogle Scholar
Genzel, R., Schödel, R., Ott, T. et al. 2003, ApJ, 594, 812CrossRefGoogle Scholar
Diolaiti, E., Bendinelli, O., Bonaccini, D. et al. 2000, A&AS, 147, 48Google Scholar
Paumard, T., Genzel, R., Martins, F. et al. 2006, ApJ, 643, 1011CrossRefGoogle Scholar
Draine, B. T. 1989, Proceedings of the 22nd Eslab Symposium held in Salamanca, Spain, 7-9 December, 1988, ed. Kaldeich, B.H., 93Google Scholar
Lutz, D., Krabbe, A. & Genzel, R. 1993, ApJ, 418, 244CrossRefGoogle Scholar
Melia, F., Coker, R. F. & Yusef-Zadeh, F. 1996, ApJ, 460, L33CrossRefGoogle Scholar
Yusef-Zadeh, F., Roberts, D. A. & Biretta, J. 1998, ApJ, 499, L159CrossRefGoogle Scholar
Schödel, R., Eckart, A., Iserlohe, C., Genzel, R. & Ott, T. 2005 ApJ, 625, L111CrossRefGoogle Scholar
Maillard, J. P., Paumard, T., Stolovy, S. R. & Rigaut, V. 2004, A&A, 423, 155Google Scholar
Figer, D., Rich, V., Kim, S.S., Morris, M. & Serabyn, E. 2004, ApJ, 601, 319CrossRefGoogle Scholar
Tiede, G. P., Frogel, J. A. & Terndrup, D. M. 1995, AJ, 110, 2788CrossRefGoogle Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 64 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 4th March 2021. This data will be updated every 24 hours.

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 structure of the nuclear stellar cluster of the Milky Way
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 structure of the nuclear stellar cluster of the Milky Way
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 structure of the nuclear stellar cluster of the Milky Way
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *