Skip to main content Accessibility help
×
Home

The Assembly History of the Milky Way Nuclear Star Cluster

  • A. Feldmeier-Krause (a1), N. Neumayer (a2), R. Schödel (a3), A. Seth (a4), P. T. de Zeeuw (a1) (a5), C. J. Walcher (a6), N. Lützgendorf (a7), M. Kissler-Patig (a8), M. Hilker (a1) and H. Kuntschner (a1)...

Abstract

Within the central 10 pc of our Galaxy lies a dense cluster of stars, the nuclear star cluster. This cluster forms a distinct component of our Galaxy. Nuclear star clusters are common objects and are detected in ~ 75% of nearby galaxies. It is, however, not fully understood how nuclear star clusters form. The Milky Way nuclear star cluster is the closest of its kind. At a distance of only 8 kpc we can spatially resolve its stellar populations and kinematics much better than in external galaxies. This makes the Milky Way nuclear star cluster the perfect local reference object for understanding the structure and assembly history of nuclear star clusters in general. There are of the order of 107 stars within the central 10 pc of the Galactic center. Most of these stars are several Gyr old late-type stars. However, there are also more than 100 hot early-type stars in the central parsec of the Milky Way, with ages of only a few Myr. Beyond a projected distance of 0.5 pc of the Galactic center, the density of young stars was largely unknown, since only very few spectroscopic observations existed so far. We covered the central >4 pc2 (0.75 sq.arcmin) of the Galactic center using the integral-field spectrograph KMOS (VLT). We extracted more than 1,000 spectra from individual stars and identified >20 new early-type stars based on their spectra. We studied the spatial distribution of the different populations and their kinematics to put constraints on the assembly history of the Milky Way nuclear star cluster.

    • 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 Assembly History of the Milky Way Nuclear Star Cluster
      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 Assembly History of the Milky Way Nuclear Star Cluster
      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 Assembly History of the Milky Way Nuclear Star Cluster
      Available formats
      ×

Copyright

References

Hide All
Antonini, F. 2013, ApJ, 763, 62
Blum, R. D., Ramírez, S. V., Sellgren, K., & Olsen, K. 2003, ApJ, 597, 323
Böker, T., Laine, S., van der Marel, R. P., et al. 2002, AJ, 123, 1389
Böker, T., Sarzi, M., McLaughlin, D. E., et al. 2004, AJ, 127, 105
Buchholz, R. M., Schödel, R., & Eckart, A. 2009, A&A, 499, 483
Capuzzo-Dolcetta, R. & Miocchi, P. 2008, ApJ, 681, 1136
Carollo, C. M., Stiavelli, M., & Mack, J. 1998, AJ, 116, 68
Côté, P., Piatek, S., Ferrarese, L., et al. 2006, ApJS, 165, 57
De Lorenzi, F., Hartmann, M., Debattista, V. P., Seth, A. C., & Gerhard, O. 2013, MNRAS, 429, 2974
den Brok, M., Peletier, R. F., Seth, A., et al. 2014, MNRAS, 445, 2385
Do, T., Kerzendorf, W., Winsor, N., et al. 2015, ApJ, 809, 143
Eckart, A., Genzel, R., Ott, T., & Schödel, R. 2002, MNRAS, 331, 917
Feldmeier, A., Neumayer, N., Seth, A., et al. 2014, A&A, 570, A2
Feldmeier-Krause, A., Neumayer, N., Schödel, R., et al. 2015, ArXiv e-prints
Ferrarese, L., Côté, P., Dalla Bontà, E., et al. 2006, ApJ, 644, L21
Geballe, T. R., Najarro, F., Rigaut, F., & Roy, J.-R. 2006, ApJ, 652, 370
Georgiev, I. Y. & Böker, T. 2014, MNRAS, 441, 3570
Ghez, A. M., Salim, S., Hornstein, S. D., et al. 2005, ApJ, 620, 744
Ghez, A. M., Salim, S., Weinberg, N. N., et al. 2008, ApJ, 689, 1044
Gillessen, S., Eisenhauer, F., Trippe, S., et al. 2009, ApJ, 692, 1075
Gnedin, O. Y., Ostriker, J. P., & Tremaine, S. 2013, ArXiv e-prints
Hartmann, M., Debattista, V. P., Seth, A., Cappellari, M., & Quinn, T. R. 2011, MNRAS, 418, 2697
Krabbe, A., Genzel, R., Eckart, A., et al. 1995, ApJ, 447, L95
Launhardt, R., Zylka, R., & Mezger, P. G. 2002, A&A, 384, 112
Lu, J. R., Do, T., Ghez, A. M., et al. 2013, ApJ, 764, 155
Lyubenova, M., van den Bosch, R. C. E., Côté, P., et al. 2013, MNRAS, 431, 3364
Milosavljević, M. 2004, ApJ, 605, L13
Moorwood, A., Cuby, J.-G., Biereichel, P., et al. 1998, The Messenger, 94, 7
Neumayer, N., Walcher, C. J., Andersen, D., et al. 2011, MNRAS, 413, 1875
Paumard, T., Genzel, R., Martins, F., et al. 2006, ApJ, 643, 1011
Perets, H. B. & Mastrobuono-Battisti, A. 2014, ApJ, 784, L44
Perger, M., Moultaka, J., Eckart, A., et al. 2008, A&A, 478, 127
Pflamm-Altenburg, J. & Kroupa, P. 2009, MNRAS, 397, 488
Pfuhl, O., Fritz, T. K., Zilka, M., et al. 2011, ApJ, 741, 108
Sanchez-Bermudez, J., Schödel, R., Alberdi, A., et al. 2014, A&A, 567, A21
Schödel, R., Feldmeier, A., Kunneriath, D., et al. 2014a, A&A, 566, A47
Schödel, R., Feldmeier, A., Neumayer, N., Meyer, L., & Yelda, S. 2014b, Classical and Quantum Gravity, 31, 244007
Schödel, R., Najarro, F., Muzic, K., & Eckart, A. 2010, A&A, 511, A18
Sharples, R., Bender, R., Agudo Berbel, A., et al. 2013, The Messenger, 151, 21
Tanner, A., Figer, D. F., Najarro, F., et al. 2006, ApJ, 641, 891
Tremaine, S. D., Ostriker, J. P. & Spitzer, L. Jr. 1975, ApJ, 196, 407
Turner, M. L., Côté, P., Ferrarese, L., et al. 2012, ApJS, 203, 5
Viehmann, T., Eckart, A., Schödel, R., Pott, J.-U., & Moultaka, J. 2006, ApJ, 642, 861
Walcher, C. J., van der Marel, R. P., McLaughlin, D., et al. 2005, ApJ, 618, 237
MathJax
MathJax is a JavaScript display engine for mathematics. For more information see http://www.mathjax.org.

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed