The study is based on a large sample of ∼22 000 well-defined star-forming galaxies selected from the Sloan Digital Sky Survey. The reddening parametrized by colour excess E(B−V) is derived from the Balmer decrement. Besides the dependency of reddening on Hα luminosity/surface brightness...
Theory suggests that there are two primary modes of accretion through which dark-matter halos acquire the gas to form and fuel galaxies: hot- and cold-flow accretion. In cold-flow accretion, gas streams along cosmic web filaments to the centre of the halo, allowing for the efficient delivery...
Star-forming galaxies rule gamma-ray sky4 November 2021 Diffuse sky Fermi–LAT’s five-year sky map, indicating the various diffuse components that make up 80% of all photons detected. Credit: NASA The diffuse photon background that fills the universe does not limit itself to the attention-...
网络恒星形成星系 网络释义 1. 恒星形成星系 ... ) galaxy formation 星系形成 )star-forming galaxies恒星形成星系) galaxy formation and evolution 星系形成和演化 ... www.dictall.com|基于2个网页
A new photometric index based on apparent magnitudes has been obtained to separate red galaxies dominated by old populations from those dominated by star formation. A two-component mass code has been used to estimate the stellar mass and age of the galaxies. The main results are: the two ...
high-redshift (z>1), UV-bright, star-forming galaxies, these galaxies' FIR emission will be generally undetected in sub-mm surveys, unless (1) their bolometric luminosity is comparable to or larger than that of ultraluminous FIR galaxies and (2) their FIR SED contains a cool dust ...
galaxies: high-redshiftgalaxies: photometrygalaxies: starburstinfrared: galaxiesStarting from a sample of 24 \\micron\\ sources in the Extended Groth Strip, weuse 3.6 to 8 \\micron\\ color criteria to select ultraluminous infrared galaxies(ULIRGs) at $z\\sim2$. Spectroscopy from 20-38 \\...
【预订】The Nature of Dusty Star-Forming Galaxies 已售少于100 ￥1217点击查看更多配送: 北京至 阳泉市城区 快递: 7.00预售,付款后60天内发货 保障:7天无理由退货查看更多 用户评价 参数信息 图文详情 本店推荐 用户评价 参数信息 ISBN编号 9783319883113 作者 WilliamCowley 出版社名称 Springer Berlin Heidelberg...
Around 3 billion years after the Big Bang, he said "it really is fireworks" in the young galaxies, with a "peak of star formation and black hole activity." The telescope focused on a wide stretch of the Northern Hemisphere sky, with the equivalent of an exposure time 10 times ...
We present spatially resolved kinematics of 27 ALMA-identified dust-obscured star-forming galaxies (DSFGs) at z ∼ 1.3–2.6, as traced by Hα emission using VLT/KMOS near-infrared integral field spectroscopy from the ‘KMOS-ALMA Observations of Submillimetre Sources’ (KAOSS) Large ...