Discrete effects in stellar feedback: Individual Supernovae, Hypernovae, and IMF Sampling in Dwarf Galaxies [0.03%]
恒星反馈中的离散效应：矮星系中超新星、超亮新星和初生质量函数抽样的影响
Kung-Yi Su,Philip F Hopkins,Christopher C Hayward et al.
Kung-Yi Su et al.
Using high-resolution simulations from the FIRE-2 (Feedback In Realistic Environments) project, we study the effects of discreteness in stellar feedback processes on the evolution of galaxies and the properties of the interstellar medium (I...
Kareem El-Badry,Joss Bland-Hawthorn,Andrew Wetzel et al.
Kareem El-Badry et al.
The oldest stars in the Milky Way (MW) bear imprints of the Galaxy's early assembly history. We use FIRE cosmological zoom-in simulations of three MW-mass disc galaxies to study the spatial distribution, chemistry, and kinematics of the old...
The Little Engines That Could? Globular clusters contribute significantly to reionization-era star formation [0.03%]
小引擎也能发挥作用吗？球状星团对再离子化时代恒星形成的贡献不容忽视
Michael Boylan-Kolchin
Michael Boylan-Kolchin
Metal-poor globular clusters (GCs) are both numerous and ancient, which indicates that they may be important contributors to ionizing radiation in the reionization era. Starting from the observed number density and stellar mass function of ...
From the top down and back up again: star cluster structure from hierarchical star formation [0.03%]
从分层星的形成看星团结构：自上而下及回溯分析
Michael Y Grudić,Dávid Guszejnov,Philip F Hopkins et al.
Michael Y Grudić et al.
Young massive star clusters spanning ~104-108M⊙ in mass have been observed to have similar surface brightness profiles. We show that recent hydrodynamical simulations of star cluster formation have also produced star clusters with this str...
Through a Smoother Lens: An expected absence of LCDM substructure detections from hydrodynamic and dark matter only simulations [0.03%]
透过更清晰的镜头：来自流体动力学和暗物质模拟的LCDM子结构检测的预期缺失
Andrew S Graus,James S Bullock,Michael Boylan-Kolchin et al.
Andrew S Graus et al.
A fundamental prediction of the cold dark matter cosmology is the existence of a large number of dark subhalos around galaxies, most of which should be entirely devoid of stars. Confirming the existence of dark substructures stands among th...
T K Chan,D Kereš,A Wetzel et al.
T K Chan et al.
We test if the cosmological zoom-in simulations of isolated galaxies from the FIRE project reproduce the properties of ultra diffuse galaxies (UDGs). We show that outflows that dynamically heat galactic stars, together with a passively agin...
Michael Boylan-Kolchin
Michael Boylan-Kolchin
I present a simple phenomenological model for the observed linear scaling of the stellar mass in old globular clusters (GCs) with z = 0 halo mass in which the stellar mass in GCs scales linearly with progenitor halo mass at z = 6 above a mi...
Measuring molecular abundances in comet C/2014 Q2 (Lovejoy) using the APEX telescope [0.03%]
利用阿塔卡马探路者望远镜测量洛夫乔伊(C/2014 Q2)彗星中的分子丰度
M de Val-Borro,S N Milam,M A Cordiner et al.
M de Val-Borro et al.
Comet composition provides critical information on the chemical and physical processes that took place during the formation of the Solar System. We report here on millimeter spectroscopic observations of the long-period bright comet C/2014 ...
A survey of eight hot Jupiters in secondary eclipse using WIRCam at CFHT [0.03%]
利用WIRCam对八颗热木星在二次蚀食时的巡天调查
Eder Martioli,Knicole D Colón,Daniel Angerhausen et al.
Eder Martioli et al.
We present near infrared high-precision photometry for eight transiting hot Jupiters observed during their predicted secondary eclipses. Our observations were carried out using the staring mode of the WIRCam instrument on the Canada-France-...
Low redshift baryon acoustic oscillation measurement from the reconstructed 6-degree field galaxy survey [0.03%]
从重建的六度场星系 surveys 中测量低红移物质声学振荡
Paul Carter,Florian Beutler,Will J Percival et al.
Paul Carter et al.
Low-redshift measurements of baryon acoustic oscillations (BAO) measure the late-time evolution of the Universe and are a vital probe of dark energy. Over the past decade both the 6-degree Field Galaxy Survey (6dFGS) and Sloan Digital Sky S...