The evolution of the UV luminosity function of globular clusters in the E-MOSAICS simulations
The evolution of the UV luminosity function of globular clusters in the E-MOSAICS simulations
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E-MOSAICS 模拟中球状星团紫外光度函数的演化
DOI:
10.1093/mnras/stz1592
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发表时间:
2019
影响因子:
4.8
通讯作者:
Pfeffer J
中科院分区:
文献类型:
--
作者:
Pfeffer J
We present the evolution of the rest-frame ultraviolet (UV) properties of the globular cluster (GC) populations and their host galaxies formed in the E-MOSAICS suite of cosmological hydrodynamical simulations. We compute the luminosities of all clusters associated with 25 simulated Milky-Way-mass galaxies, discussed in previous works, in the rest-frame UV and optical bands by combining instantaneous cluster properties (age, mass, metallicity) with simple stellar population models, from redshiftsz= 0 to 10. Due to the rapid fading of young stellar populations in the UV, most of the simulated galaxies do not host GCs bright enough to be individually identified in deepHubble Space Telescopeobservations, even in highly magnified systems. The median age of the most UV-luminous GCs is <10 Myr (assuming no extinction), increasing to ≳100 Myr for red optical filters. We estimate that these GCs typically only contribute a few per cent of the total UV luminosity of their host galaxies at any epoch. We predict that the number density of UV-bright proto-GCs (or cluster clumps) will peak between redshiftsz= 1 and 3. In the main progenitors of Milky-Way-mass galaxies, 10–20 per cent of the galaxies at redshifts 1 ≲z≲ 3 have clusters brighter thanMUV< −15, and less than 10 per cent at other epochs. The brightest cluster in the galaxy sample atz> 2 is typicallyMUV∼ −16, consistent with the luminosities of observed compact high-redshift sources.
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DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
M. Ricotti
通讯作者:
M. Ricotti
DOI:
10.1111/j.1365-2966.2009.15034.x
发表时间:
2008-08
影响因子:
4.8
作者:
K. Dolag;S. Borgani;S. Borgani;S. Borgani;G. Murante;V. Springel
通讯作者:
K. Dolag;S. Borgani;S. Borgani;S. Borgani;G. Murante;V. Springel
影响因子:
4.8
作者:
Brendan Griffen;M. Drinkwater;I. Iliev;P. Thomas;G. Mellema
通讯作者:
G. Mellema
DOI:
10.3847/1538-4357/aa775e
发表时间:
2017
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Rigby;T. Johnson;K. Sharon;K. Whitaker;K. Whitaker;M. Gladders;M. Florian;J. Lotz;M. Bayliss;E. Wuyts
通讯作者:
E. Wuyts
影响因子:
6.5
作者:
S. Larsen;J. Strader;J. P. F. R. U. Nijmegen;The Netherlands.;Harvard-Smithsonian Cfa;Usa;M. University;UCOLick Observatory
通讯作者:
S. Larsen;J. Strader;J. P. F. R. U. Nijmegen;The Netherlands.;Harvard-Smithsonian Cfa;Usa;M. University;UCOLick Observatory