搜索结果: 1-15 共查到“理学 dusty”相关记录36条 . 查询时间(0.078 秒)
Dimming Betelgeuse likely isn't cold, just dusty, new study shows（图）
Dimming Betelgeuse just dusty
2020/3/13
Late last year, news broke that the star Betelgeuse was fading significantly, ultimately dropping to around 40% of its usual brightness. The activity fueled popular speculation that the red supergiant...
ALMA spots most distant dusty galaxy hidden in plain sight（图）
ALMA spots distant dusty galaxy hidden plain sight
2019/12/13
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have spotted the light of a massive galaxy seen only 970 million years after the Big Bang. Called MAMBO-9, it's the most dista...
Wind picked up strongly and the wave crests became foamy on the afternoon of February 27, 1995. The JOIDES Resolution steamed at full speed up the West African coast, heading northward for the Canary ...
Radio-to-Far-Infrared Spectral Energy Distribution and Photometric Redshifts for Dusty Starburst Galaxies
galaxies photometric
2014/12/26
As a logical next step in improving the radio-to-submillimeter spectral index as a redshift indicator, we have investigated a technique of using the entire radio-to-far-infrared spectral energy distri...
Dusty Star Formation in Extreme Environments: Galaxies and Galaxy Clusters in the Distant Universe
high-redshift galaxy clusters infrared environment Herschel
2014/12/9
In this thesis, we present a comprehensive study of the dust-obscured star formation (SF) activity in galaxy clusters out to high redshift using infrared (IR) imaging. Using hundreds of galaxy cluster...
Genesis of the dusty Universe: modeling submillimetre source counts
galaxies: evolution – galaxies: general – galaxies: starburst – infrared:galaxies – submillimetre: galaxies
2011/10/13
We model the evolution of IR galaxies using a phenomenological approach to match the observed source counts at different IR wavelengths. We introduce a new algorithm for reproducing source counts base...
Dispersion relations for circular single and double dusty plasma chains
Dispersion relations circular single and double dusty plasma chains
2011/8/5
Abstract: We derive dispersion relations for a system of identical particles confined in a two-dimensional annular harmonic well and which interact through a Yukawa potential, e.g., a dusty plasma rin...
The Young, the Old, and the Dusty: Stellar Populations of AGN Hosts
Dusty: Stellar Populations AGN Hosts
2011/10/11
Studying the average properties of active galactic nuclei (AGN) host stellar populations is an important step in understanding the role of AGN in galaxy evolution and the processes which trigger and f...
ACCESS IV: The quenching of star formation in a cluster population of dusty S0s
galaxies: star formation — galaxies: evolution — infrared: galaxies —galaxies: clusters: general—galaxies: clusters: individual (A3558)—galaxies: clusters: individual (A3562)
2011/10/11
We present an analysis of the mid-infrared (MIR) colours of 165 70um-detected galaxies in the Shapley supercluster core (SSC) at z=0.048 using panoramic Spitzer/MIPS 24 and 70um imaging. While the bul...
Near-Infrared Reverberation by Dusty Clumpy Tori in Active Galactic Nuclei
Near-Infrared Reverberation Dusty Clumpy Active Galactic Nuclei
2011/9/27
According to recent models, the accretion disk and black hole in active galactic nuclei are surrounded by a clumpy torus. We investigate the NIR flux variation of the torus in response to a UV flash f...
Dust-acoustic solitary waves in dusty plasma with variable dust charge
Dust-acoustic solitary waves dusty plasma with variable
2011/9/2
In this article we are going to consider dust acoustic wave in dusty plasma whose constituents are inertial negative charged dust particles ,Boltzmann distributed electrons and non-thermal distributed...
Mineral magnetism of dusty olivine: A credible recorder of pre-accretionary remanence
chondrules dusty olivine electron holography first-order reversal curves magnetic properties transmission electron microscopy
2014/5/20
The magnetic properties of olivine-hosted Fe-Ni particles have been studied to assess the potential of “dusty olivine” to retain a pre-accretionary remanence in chondritic meteorites. Both body-center...
Modelling the dusty universe II: The clustering of submillimetre-selected galaxies
galaxies:high-redshift – galaxies-evolution – cosmology large scale struc-ture – submillimetre – methods N-body simulations
2010/11/12
We combine the galform semi-analytical model of galaxy formation, which predicts the star formation and merger histories of galaxies, the grasil spectro-photometric code, which calculates the spectral...
String Cosmology in LRS Bianchi Type-II Dusty Universe with Time Decaying Vacuum Energy Density $\Lambda$
LRS Bianchi type II models Nambu String Massive string
2010/12/21
A model of a cloud formed by massive strings is used as a source of LRS Bianchi type II with time decaying vacuum energy density . To construct string cosmological models we have used the energy-mome...
Upper-hybrid wave driven Alfvenic turbulence in magnetized dusty plasmas
Upper-hybrid wave Alfvenic turbulence magnetized dusty plasmas
2010/11/12
The nonlinear dynamics of coupled electrostatic upper-hybrid (UH) and Alfven waves (AWs) is revisited in a magnetized electron-ion plasma with charged dust impurities. A pair of nonlinear equations [...