Push it to the limit: Local Group constraints on high-redshift stellar mass functions forM⋆≥ 105 M⊙

Graus, Andrew S.; Bullock, James S.; Boylan-Kolchin, Michael; Weisz, Daniel R.

doi:10.1093/mnras/stv2728

Cited by 17 publications

(17 citation statements)

References 74 publications

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“…Our result is also consistent with measurements of the slope of the stellar mass function of field galaxies and satellites between redshifts ∼ 0 − 4 which typically find values of α between -1 to -2 (Grazian et al 2015;Duncan et al 2014;Baldry et al 2012;Santini et al 2012;Graus et al 2016;Lan et al 2015, e.g.). Our data is not constraining enough to test whether satellite galaxies follow the field galaxy trend of decreasing α with increasing redshift.…”

Section: Resultssupporting

confidence: 92%

The missing satellite problem in 3D

Nierenberg¹,

Treu²,

Menci³

et al. 2016

Mon. Not. R. Astron. Soc.

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It is widely believed that the large discrepancy between the observed number of satellite galaxies and the predicted number of dark subhalos can be resolved via a variety of baryonic effects which suppress star formation in low mass halos. Supporting this hypothesis, numerous high resolution simulations with star formation, and associated feedback have been shown to reproduce the satellite luminosity function around Milky Way-mass simulated galaxies at redshift zero. However, a more stringent test of these models is their ability to simultaneously match the satellite luminosity functions of a range of host halo masses and redshifts. In this work we measure the luminosity function of faint (sub-Small Magellanic Cloud luminosity) satellites around hosts with stellar masses 10.5

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Section: Resultssupporting

confidence: 92%

The missing satellite problem in 3D

Nierenberg¹,

Treu²,

Menci³

et al. 2016

Mon. Not. R. Astron. Soc.

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“…In addition, there is growing recognition that studying the nearest galaxies provides an observational window on highredshift galaxy evolution that even the next generation of highredshift galaxy surveys will not be able to provide (e.g., Weisz et al 2014c;Boylan-Kolchin et al 2015;Patej & Loeb 2015;Boylan-Kolchin et al 2016;Graus et al 2016). Thus, it follows that obtaining observations of the nearest galaxies, which provide strong constraints on their lifetime SFHs, is critical to our progress.…”

Section: Motivation: Testing For Bias In the Mw Satellitesmentioning

confidence: 99%

The ISLAndS Project. II. The Lifetime Star Formation Histories of Six Andromeda dSphs*

Skillman

Monelli

Weisz

et al. 2017

ApJ

Self Cite

111

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The Initial Star formation and Lifetimes of Andromeda Satellites (ISLAndS) project employs Hubble Space Telescope imaging to study a representative sample of six Andromeda dSph satellite companion galaxies. Our main goal is to determine whether the star formation histories (SFHs) of the Andromeda dSph satellites demonstrate significant statistical differences from those of the Milky Way (MW). Our deep observations yield a time resolution at the oldest ages of ∼1 Gyr, allowing meaningful comparisons to the MW satellites. The six dSphs present a variety of SFHs (e.g., a significant range in quenching times, t q , from 9 to 6 Gyr ago) that are not strictly correlated with luminosity or present distance from M31. In agreement with observations of MW companions of similar mass, there is no evidence of complete quenching of star formation by the cosmic UV background responsible for reionization, but the possibility of a degree of quenching at reionization cannot be ruled out. We do not find significant differences between the SFHs of the members and non-members of the vast, thin plane of satellites. The SFHs of the ISLAndS M31 dSphs appear to be more uniform than those of the MW dSphs. Specifically, the primary difference between the SFHs of the ISLAndS dSphs and MW dSph companions of similar luminosities and host distances is the absence of late-quenching (  t 5 Gyr q ) dSphs in the ISLAndS sample. Thus, models that can produce satellite populations with and without late-quenching satellites are of extreme interest.

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“…Galaxies at z > 6 3 provide further observational insight (e.g., Brown et al 2014;Boylan-Kolchin et al 2015;Graus et al 2015).…”

Section: Reionisationmentioning

confidence: 99%

Observational Searches for Star-Forming Galaxies at z > 6

Finkelstein

2016

Publ. Astron. Soc. Aust.

151

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Although the universe at redshifts greater than six represents only the first one billion years (<10%) of cosmic time, the dense nature of the early universe led to vigorous galaxy formation and evolution activity which we are only now starting to piece together. Technological improvements have, over only the past decade, allowed large samples of galaxies at such high redshifts to be collected, providing a glimpse into the epoch of formation of the first stars and galaxies. A wide variety of observational techniques have led to the discovery of thousands of galaxy candidates at z > 6, with spectroscopically confirmed galaxies out to nearly z = 9. Using these large samples, we have begun to gain a physical insight into the processes inherent in galaxy evolution at early times. In this review, I will discuss (i) the selection techniques for finding distant galaxies, including a summary of previous and ongoing ground and space-based searches, and spectroscopic follow-up efforts, (ii) insights into galaxy evolution gleaned from measures such as the rest-frame ultraviolet luminosity function, the stellar mass function, and galaxy star-formation rates, and (iii) the effect of galaxies on their surrounding environment, including the chemical enrichment of the universe, and the reionisation of the intergalactic medium. Finally, I conclude with prospects for future observational study of the distant universe, using a bevy of new state-of-the-art facilities coming online over the next decade and beyond.

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Push it to the limit: Local Group constraints on high-redshift stellar mass functions forM_⋆≥ 10⁵ M_⊙

Cited by 17 publications

References 74 publications

The missing satellite problem in 3D

The missing satellite problem in 3D

The ISLAndS Project. II. The Lifetime Star Formation Histories of Six Andromeda dSphs*

Observational Searches for Star-Forming Galaxies at z > 6

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