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- W2065943660 abstract "We study the merger histories of galaxy dark matter halos using a high resolution LCDM N-body simulation. Our merger trees follow ~17,000 halos with masses M_0 = (10^11--10^13) Msun at z=0 and track accretion events involving objects as small as m = 10^10 Msun. We find that mass assembly is remarkably self-similar in m/M_0, and dominated by mergers that are ~10% of the final halo mass. While very large mergers, m > 0.4 M_0, are quite rare, sizeable accretion events, m ~ 0.1 M_0, are common. Over the last 10 Gyr, an overwhelming majority (~95%) of Milky Way-sized halos with M_0 = 10^12 Msun have accreted at least one object with greater total mass than the Milky Way disk (m > 5x10^10 Msun), and approximately 70% have accreted an object with more than twice that mass (m > 10^11 Msun). Our results raise serious concerns about the survival of thin-disk dominated galaxies within the current paradigm for galaxy formation in a CDM universe. In order to achieve a ~70% disk-dominated fraction in Milky Way-sized CDM halos, mergers involving m ~ 2x10^11 Msun objects must not destroy disks. Considering that most thick disks and bulges contain old stellar populations, the situation is even more restrictive: these mergers must not heat disks or drive gas into their centers to create young bulges." @default.
- W2065943660 created "2016-06-24" @default.
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- W2065943660 date "2008-08-20" @default.
- W2065943660 modified "2023-10-03" @default.
- W2065943660 title "Merger Histories of Galaxy Halos and Implications for Disk Survival" @default.
- W2065943660 cites W1531265603 @default.
- W2065943660 cites W1656997389 @default.
- W2065943660 cites W1675885812 @default.
- W2065943660 cites W1845039355 @default.
- W2065943660 cites W1965779302 @default.
- W2065943660 cites W1966926090 @default.
- W2065943660 cites W1971277862 @default.
- W2065943660 cites W1974309328 @default.
- W2065943660 cites W1976255645 @default.
- W2065943660 cites W1980639774 @default.
- W2065943660 cites W1985789402 @default.
- W2065943660 cites W1986514391 @default.
- W2065943660 cites W1987799421 @default.
- W2065943660 cites W1990481843 @default.
- W2065943660 cites W1993324202 @default.
- W2065943660 cites W1993839984 @default.
- W2065943660 cites W1994968723 @default.
- W2065943660 cites W1997094259 @default.
- W2065943660 cites W1998577648 @default.
- W2065943660 cites W1999575224 @default.
- W2065943660 cites W2008214685 @default.
- W2065943660 cites W2011490256 @default.
- W2065943660 cites W2012467990 @default.
- W2065943660 cites W2016145186 @default.
- W2065943660 cites W2017240483 @default.
- W2065943660 cites W2020951456 @default.
- W2065943660 cites W2021909486 @default.
- W2065943660 cites W2023351067 @default.
- W2065943660 cites W2028732750 @default.
- W2065943660 cites W2032469582 @default.
- W2065943660 cites W2037816996 @default.
- W2065943660 cites W2039804150 @default.
- W2065943660 cites W2040759695 @default.
- W2065943660 cites W2041691781 @default.
- W2065943660 cites W2045028470 @default.
- W2065943660 cites W2050469528 @default.
- W2065943660 cites W2052414714 @default.
- W2065943660 cites W2056029235 @default.
- W2065943660 cites W2057621859 @default.
- W2065943660 cites W2065975941 @default.
- W2065943660 cites W2067264089 @default.
- W2065943660 cites W2077334492 @default.
- W2065943660 cites W2080259687 @default.
- W2065943660 cites W2082982557 @default.
- W2065943660 cites W2084178876 @default.
- W2065943660 cites W2084287642 @default.
- W2065943660 cites W2086089232 @default.
- W2065943660 cites W2090990268 @default.
- W2065943660 cites W2091161890 @default.
- W2065943660 cites W2093975606 @default.
- W2065943660 cites W2100072568 @default.
- W2065943660 cites W2117689132 @default.
- W2065943660 cites W2118429040 @default.
- W2065943660 cites W2132579896 @default.
- W2065943660 cites W2133734669 @default.
- W2065943660 cites W2139208191 @default.
- W2065943660 cites W2139373704 @default.
- W2065943660 cites W2143114413 @default.
- W2065943660 cites W2148882585 @default.
- W2065943660 cites W2160741239 @default.
- W2065943660 cites W2161078062 @default.
- W2065943660 cites W2161411336 @default.
- W2065943660 cites W2164387557 @default.
- W2065943660 cites W2165233299 @default.
- W2065943660 cites W2166408168 @default.
- W2065943660 cites W2963765929 @default.
- W2065943660 cites W3098112745 @default.
- W2065943660 cites W3098113319 @default.
- W2065943660 cites W3099659591 @default.
- W2065943660 cites W3101809885 @default.
- W2065943660 cites W3102678289 @default.
- W2065943660 cites W3103089212 @default.
- W2065943660 cites W3103899138 @default.
- W2065943660 cites W3105487931 @default.
- W2065943660 cites W3106014062 @default.
- W2065943660 cites W3106258903 @default.
- W2065943660 cites W3106474653 @default.
- W2065943660 cites W3106487884 @default.
- W2065943660 cites W3121242056 @default.
- W2065943660 cites W3123777091 @default.
- W2065943660 cites W3125934772 @default.
- W2065943660 cites W4290694345 @default.
- W2065943660 cites W4292508430 @default.
- W2065943660 cites W951385085 @default.
- W2065943660 doi "https://doi.org/10.1086/588579" @default.
- W2065943660 hasPublicationYear "2008" @default.
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