The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
BROKEN AND UNBROKEN: THE MILKY WAY AND M31 STELLAR HALOS
Open accessAbstract
We use the Bullock & Johnston suite of simulations to study the density profiles of L *-type galaxy stellar halos. Observations of the Milky Way and M31 stellar halos show contrasting results: the Milky Way has a "broken" profile, where the density falls off more rapidly beyond ∼25 kpc, while M31 has a smooth profile out to 100 kpc with no obvious break. Simulated stellar halos, built solely by the accretion of dwarf galaxies, also exhibit this behavior: some halos have breaks, while others do not. The presence or absence of a break in the stellar halo profile can be related to the accretion history of the galaxy. We find that a break radius is strongly related to the buildup of stars at apocenters. We relate these findings to observations, and find that the "break" in the Milky Way density profile is likely associated with a relatively early (∼6–9 Gyr ago) and massive accretion event. In contrast, the absence of a break in the M31 stellar halo profile suggests that its accreted satellites have a wide range of apocenters. Hence, it is likely that M31 has had a much more prolonged accretion history than the Milky Way.
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“Several authors, including Watkins et al. (2009) and Deason et al. (2013), have reported the presence of a break in the density profile of the Galactic stellar halo at a distance of ∼20-25 kpc from the Galactic center.”
From Streams, Substructures, and the Early History of the Milky Way (2020) · cites this paper as Deason et al. (2013)
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Cites
The Milky Way Tomography with SDSS. I. Stellar Number Density Distribution
Jurić, M., Ivezić, Ž., Brooks, A. M., Lupton, R. H., Schlegel, D. J., Finkbeiner, D. P., Padmanabhan, N., Bond, N., Sesar, B., Rockosi, C. M., et al. (2008) · The Astrophysical Journal · doi:10.1086/523619 · Cited by 1,318
The Field of Streams: Sagittarius and Its Siblings
Belokurov, V. A., Zucker, D. B., Evans, N. W., Gilmore, G. F., Vidrih, S., Bramich, D. M., Newberg, H. J., Wyse, R. F. Ġ., Irwin, M. J., Fellhauer, M., et al. (2006) · The Astrophysical Journal · doi:10.1086/504797 · Cited by 910
Self-citationTracing Galaxy Formation with Stellar Halos. I. Methods
Bullock, J., & Johnston, K. (2005) · The Astrophysical Journal · doi:10.1086/497422 · Cited by 826
Self-citationThe Ghost of Sagittarius and Lumps in the Halo of the Milky Way
Newberg, H., Yanny, B., Rockosi, C., Grebel, E., Rix, H., Brinkmann, J., Csabai, I., Hennessy, G., Hindsley, R., Ibata, R., et al. (2001) · The Astrophysical Journal · doi:10.1086/338983 · Cited by 636
The remnants of galaxy formation from a panoramic survey of the region around M31
McConnachie, A. W., Irwin, M. J., Ibata, R., Dubinski, J., Widrow, L. M., Martin, N. F., Côté, P., Dotter, A., Navarro, J. F., Ferguson, A. M. N., et al. (2009) · Nature · doi:10.1038/nature08327 · Cited by 621
Galactic stellar haloes in the CDM model
Cooper, A. P., Cole, S., Frenk, C. S., White, S. D. M., Helly, J., Benson, A. J., De Lucia, G., Helmi, A., Jenkins, A., Navarro, J. F., et al. (2010) · Monthly Notices of the Royal Astronomical Society · doi:10.1111/j.1365-2966.2010.16740.x · Cited by 594
A giant stream of metal-rich stars in the halo of the galaxy M31
Ibata, R., Irwin, M., Lewis, G., Ferguson, A. M. N., & Tanvir, N. (2001) · Nature · doi:10.1038/35083506 · Cited by 593
Astronomical Data Analysis Software and Systems XVIII
Bohlender, D., Durand, D., & Dowler, P. (2009) · Cited by 457
The Accretion Origin of the Milky Way’s Stellar Halo
Bell, E. F., Zucker, D. B., Belokurov, V. A., Sharma, S., Johnston, K. V., Bullock, J. S., Hogg, D. W., Jahnkę, K., de Jong, J. T. A., Beers, T. C., et al. (2008) · The Astrophysical Journal · doi:10.1086/588032 · Cited by 446
Self-citation1 The Ghost of Sagittarius and Lumps in the Halo of the Milky WayPreprint
Newberg, H. J., Yanny, B., Rockosi, C. M., Grebel, E. K., Rix, H. W., Brinkmann, J., Csabai, I., Hennessy, G. S., Hindsley, R. B., Ibata, R., et al. (2001) · Cited by 441
Research works printed but not linked: 2
- Binney, 1987, Galactic Dynamics, 747
- Einasto, 1989, A&A, 223, 89
Cited by
Sorted by citations
The Galaxy in Context: Structural, Kinematic, and Integrated Properties
Bland-Hawthorn, J., & Gerhard, O. (2016) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev-astro-081915-023441 · Cited by 1,656
Exploring the Milky Way stellar disk
Bensby, T., Feltzing, S., & Oey, M. S. (2014) · Astronomy and Astrophysics · doi:10.1051/0004-6361/201322631 · Cited by 1,115
Co-formation of the disc and the stellar halo★
Belokurov, V, Erkal, D., Evans, N. W., Koposov, S. E., & Deason, A. J. (2018) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/sty982 · Cited by 1,020
Self-citationRodríguez-Gómez, V., Pillepich, A., Sales, L. V., Genel, S., Vogelsberger, M., Zhu, Q., Wellons, S., Nelson, D., Torrey, P., Springel, V., et al. (2016) · Monthly Notices of the Royal Astronomical Society · doi:10.1093/mnras/stw456 · Cited by 475
Bensby, T., Feltzing, S., & Oey, M. S. (2013) · arXiv (Cornell University) · doi:10.48550/arxiv.1309.2631 · Cited by 461
Metadata
- Authors
- Deason, A. J., Belokurov, V., Evans, N. W., & Johnston, K. V.
- Affiliations
- University of California, Santa Cruz (US)
- University of Cambridge (GB)
- Columbia University (US)
- Venue
- The Astrophysical Journal
- Publisher
- American Astronomical Society
- Published
- 2013-01-16
- Volume
- 763
- Issue
- 2
- Pages
- 113
- ISSN
- 0004-637X (ISSN-L)
- 1538-4357
- OpenAlex
- W1985952501
- Cited by
- 184
- References
- 39
- Citations by year
- 2026: 7 · 2025: 9 · 2024: 11 · 2023: 13 · 2022: 18 · 2021: 12 · 2020: 22 · 2019: 14 · 2018: 18 · 2017: 12 · 2016: 16 · 2015: 14 · 2014: 9 · 2013: 9
- FWCI
- 8.64
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Licence
- Locations
- The Astrophysical Journal (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- Durham Research Online (Durham University) (submittedVersion)
- arXiv (Cornell University)
- Funders
- National Aeronautics and Space Administration (NAS 526555)
- Space Telescope Science Institute (NAS5- 26555, 26555)
- Science and Technology Facilities Council (ST/H00243X/1, ST/F00723X/1, ST/K000985/1, ST/J001538/1)
- Topics
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Galaxies: Formation, Evolution, Phenomena
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Stellar, planetary, and galactic studies
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astrophysical Phenomena and Observations
- Keywords
- Milky Way stellar halo, dwarf galaxy accretion, accretion history, N-body simulations, satellite galaxies
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