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NSF-supported scientists present research results on Earth's critical zone at 2017 AGU fall meeting（图）
NSF scientists Earth's critical zone 2017 AGU fall meeting
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2017/11/24
Find related stories on NSF's Critical Zone Observatories at this link.The thin veneer of Earth's surface that stretches from the top of the forest canopy to the base of bedrock is known as the "criti...
Mineralogical Confirmation for Liquid Water on Present-day Mars
Mineralogical Liquid Water Present-day Mars
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2015/10/13
Lujendra Ojha, the Georgia Tech Ph.D. candidate who led the study, first noticed these puzzling features in High Resolution Imagine Science Experiment (HiRISE) images returned by the MRO spacecraft as...
Interpreting the Evolution of the Size - Luminosity Relation for Disk Galaxies from Redshift 1 to the Present
galaxies evolution — galaxies formation — methods N-Body simulations
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2010/11/9
A sample of very high resolution cosmological disk galaxy simulations is used to investigate the evolution of galaxy disk sizes back to redshift 1 within the CDM cosmology. Artificial images in the r...
Planetary Nebula Surveys: Past, Present and Future
Stars post-AGB – planetary nebulae general – surveys general
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2010/11/10
In this review we cover the detection, identification and astrophysical importance of planetary nebulae (PN). The legacy of the historic Perek & Kohoutek and Acker et al. catalogues is briefly covered...
Panspermia, Past and Present: Astrophysical and Biophysical Conditions for the Dissemination of Life in Space
Radiation pressure Cosmic rays Micro-organisms Viruses Information
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2010/11/9
Astronomically, there are viable mechanisms for distributing organic material throughout the Milky Way. Biologically, the destructive effects of ultraviolet light and cosmic rays means that the majori...
Present and future of the TeV astronomy with Cherenkov telescopes
High Energy Astrophysical Phenomena (astro-ph.HE)
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2010/12/28
Cherenkov telescopes play a major role in the growth of the TeV Astronomy which, in 20 years, has reached the status of an important branch of Astrophysics, because of the observations of the violent,...
Gas Accretion in the M32 Nucleus: Past & Present
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Galaxy Astrophysics (astro-ph.GA)
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2010/12/27
Using adaptive optics assisted Gemini/NIFS data, I study the present and past gas accretion in the central 3" of the M32 nucleus. From changes in the spectral slope and CO line depths near the center,...
Helioseismology and the Solar Cycle: Past, Present and Future
Helioseismology solar activity cycle tachocline farside imaging
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2010/9/15
A major goal of helioseismology is to understand the mechanism of the solar cycle. In this paper, some results of helioseismic observations relevant to the cycle are briefly reviewed, the current stat...
Do Fast Rotating Bars Present a Problem to the Hierarchical Scenario?
Fast Rotating Bars Hierarchical Scenario
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2009/6/11
Do Fast Rotating Bars Present a Problem to the Hierarchical Scenario?
Asteroseismology：Past, Present and Future
Asteroseismology stellar pulsation variable stars
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2009/5/12
Asteroseismology studies stars with a wide variety of interior
and surface conditions. For two decades asteroseismic techniques have
been applied to many pulsating stars across the HR diagram. Aster...
Helioseismology and the Solar Cycle：Past, Present and Future
Helioseismology solar activity cycle tachocline farsideimaging
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2009/5/6
A major goal of helioseismology is to understand the
mechanism of the solar cycle. In this paper, some results of helioseismic
observations relevant to the cycle are briefly reviewed, the current st...
PRESENT STATUS OF ASTROMETRY
ASTROMETRY PRESENT STATUS
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2009/4/3
PRESENT STATUS OF ASTROMETRY。