Abstract
Tidal debris streams from galaxy satellites can provide insight into the dark matter distribution in halos. This is because we have more information about stars in a debris structure than about a purely random population of stars: we know that in the past they were all bound to the same dwarf galaxy; and we know that they form a dynamically cold population moving on similar orbits. They also probe a different region of the matter distribution in a galaxy than many other methods of mass determination, as their orbits take them far beyond the typical extent of those for the bulk of stars. Although conclusive results from this information have yet to be obtained, significant progress has been made in developing the methodologies for determining both the global mass distribution of the Milky Way’s dark matter halo and the amount of dark matter substructure within it. Methods for measuring the halo shape are divided into “predictive methods,” which predict the tidal debris properties from the progenitor satellite’s mass and orbit, given an assumed parent galaxy mass distribution; and “fundamental methods,” which exploit properties fundamental to the nature of tidal debris as global potential constraints. Methods for quantifying the prevalence of dark matter subhalos within halos through the analysis of the gaps left in tidal streams after these substructures pass through them are reviewed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Notes
- 1.
As discussed in Chap. 6, while there are a very limited number of potentials for which exact analytic actions are known, there has been recent progress in various approximate techniques for finding actions more generally (Sanders 2012; Bovy 2014; Sanders and Binney 2015). These advances are promising, but the extent of their effectiveness for the purposes of generating accurate models of streams in realistic triaxial potentials has yet to be fully assessed.
References
Barber, C., Starkenburg, E., Navarro, J. F., McConnachie, A. W., & Fattahi, A. 2014, MNRAS, 437, 959
Belokurov, V., Koposov, S. E., Evans, N. W., et al. 2014, MNRAS, 437, 116
Binney, J. 2008, MNRAS, 386, L47
Bonaca, A., Geha, M., Küpper, A. H. W., et al. 2014, ApJ, 795, 94
Bovy, J. 2014, ApJ, 795, 95
Boylan-Kolchin, M., Bullock, J. S., & Kaplinghat, M. 2011, MNRAS, 415, L40
Bullock, J. S., Stewart, K. R., Kaplinghat, M., Tollerud, E. J., & Wolf, J. 2010, ApJ, 717, 1043
Carlberg, R. G. 2009, ApJ Lett, 705, L223
Carlberg, R. G. 2012, ApJ, 748, 20
Carlberg, R. G., & Grillmair, C. J. 2013, ApJ, 768, 171
Carlberg, R. G. 2013, ApJ, 775, 90
Carlberg, R. G. 2014, arXiv:1412.2405
Cooper, A. P., Cole, S., Frenk, C. S., et al. 2010, MNRAS, 406, 744
Côté, P., McLaughlin, D. E., Cohen, J. G., & Blakeslee, J. P. 2003, ApJ, 591, 850
Deg, N., & Widrow, L. 2013, MNRAS, 428, 912
Deg, N., & Widrow, L. 2014, MNRAS, 439, 2678
Erkal, D., & Belokurov, V. 2015, MNRAS, 450, 1136
Eyre, A., & Binney, J. 2011, MNRAS, 413, 1852
Gibbons, S. L. J., Belokurov, V., & Evans, N. W. 2014, MNRAS, 445, 3788
Gómez, F. A., Helmi, A., Brown, A. G. A., & Li, Y.-S. 2010, MNRAS, 408, 935
Helmi, A., & White, S. D. M. 1999, MNRAS, 307, 495
Helmi, A., & de Zeeuw, P. T. 2000, MNRAS, 319, 657
Helmi, A. 2004, ApJ Lett, 610, L97
Ibata, R., Lewis, G. F., Irwin, M., Totten, E., & Quinn, T. 2001, ApJ, 551, 294
Ibata, R. A., Lewis, G. F., Irwin, M. J., & Quinn, T. 2002, MNRAS, 332, 915
Jing, Y. P., & Suto, Y. 2002, ApJ, 574, 538
Johnston, K. V. 1998, ApJ, 495, 297
Johnston, K. V., Zhao, H., Spergel, D. N., & Hernquist, L. 1999a, ApJ Lett, 512, L109
Johnston, K. V., Majewski, S. R., Siegel, M. H., Reid, I. N., & Kunkel, W. E. 1999b, AJ, 118, 1719
Johnston, K. V., Sackett, P. D., & Bullock, J. S. 2001, ApJ, 557, 137
Johnston, K. V., Spergel, D. N., & Haydn, C. 2002, ApJ, 570, 656
Johnston, K. V., Law, D. R., & Majewski, S. R. 2005, ApJ, 619, 800
Klypin, A., Kravtsov, A. V., Valenzuela, O., & Prada, F. 1999, ApJ, 522, 82
Koposov, S. E., Yoo, J., Rix, H.-W., et al. 2009, ApJ, 696, 2179
Koposov, S. E., Rix, H.-W., & Hogg, D. W. 2010, ApJ, 712, 260
Küpper, A. H. W., Lane, R. R., & Heggie, D. C. 2012, MNRAS, 420, 2700
Law, D. R., Johnston, K. V., & Majewski, S. R. 2005, ApJ, 619, 807
Law, D. R., & Majewski, S. R. 2010, ApJ, 714, 229
Lux, H., Read, J. I., Lake, G., & Johnston, K. V. 2013, MNRAS, 436, 2386
Madore, B. F., & Freedman, W. L. 2012, ApJ, 744, 132
Majewski, S. R., Skrutskie, M. F., Weinberg, M. D., & Ostheimer, J. C. 2003, ApJ, 599, 1082
Majewski, S. R., Kunkel, W. E., Law, D. R., et al. 2004, AJ, 128, 245
Moore, B., Ghigna, S., Governato, F., et al. 1999, ApJ Lett, 524, L19
Navarro, J. F., Frenk, C. S., & White, S. D. M. 1997, ApJ, 490, 493
Newberg, H. J., Willett, B. A., Yanny, B., & Xu, Y. 2010, ApJ, 711, 32
Peñarrubia, J., Belokurov, V., Evans, N. W., et al. 2010, MNRAS, 408, L26
Peñarrubia, J., Koposov, S. E., & Walker, M. G. 2012, ApJ, 760, 2
Price-Whelan, A. M., & Johnston, K. V. 2013, ApJ Lett, 778, L12
Price-Whelan, A. M., Hogg, D. W., Johnston, K. V., & Hendel, D. 2014, ApJ, 794, 4
Rockosi, C. M., Odenkirchen, M., Grebel, E. K., et al. 2002, AJ, 124, 349
Rubin, V. C., & Ford, Jr., W. K. 1970, ApJ, 159, 379
Sanders, J. L. 2012, MNRAS, 426, 128
Sanders, J. L. 2014, MNRAS, 443, 423
Sanders, J. L., & Binney, J. 2013a, MNRAS, 433, 1813
Sanders, J. L., & Binney, J. 2013b, MNRAS, 433, 1826
Sanders, J. L., & Binney, J. 2015, MNRAS, 447, 2479
Sanderson, R. E., Helmi, A., & Hogg, D. W. 2014, IAU Symposium, 298, 207 (arXiv:1404.6534)
Siegal-Gaskins, J. M., & Valluri, M. 2008, ApJ, 681, 40
Tollerud, E. J., Bullock, J. S., Strigari, L. E., & Willman, B. 2008, ApJ, 688, 277
Varghese, A., Ibata, R., & Lewis, G. F. 2011, MNRAS, 417, 198
Vegetti, S., Koopmans, L. V. E., Bolton, A., Treu, T., & Gavazzi, R 2010, MNRAS, 408, 1969
Yoon, J. H., Johnston, K. V., & Hogg, D. W. 2010, ApJ, 731, 58
Acknowledgements
KVJ thanks her postdocs and graduate students for invaluable discussions throughout the year (Andreas Kuepper, Allyson Sheffield, Lauren Corlies, Adrian Price-Whelan, David Hendel and Sarah Pearson). Her work on this volume was supported in part by NSF grant AST-1312196. RGC thanks his graduate student Wayne Ngan and support from CIfAR and NSERC is gratefully acknowledged.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Johnston, K.V., Carlberg, R.G. (2016). Tidal Debris as a Dark Matter Probe. In: Newberg, H., Carlin, J. (eds) Tidal Streams in the Local Group and Beyond. Astrophysics and Space Science Library, vol 420. Springer, Cham. https://doi.org/10.1007/978-3-319-19336-6_7
Download citation
DOI: https://doi.org/10.1007/978-3-319-19336-6_7
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-19335-9
Online ISBN: 978-3-319-19336-6
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)