搜索结果: 1-15 共查到“天文学 Classification”相关记录15条 . 查询时间(0.252 秒)
The colours of BL Lac objects: a new approach to their classification
galaxies:active:BL Lac objects
font style='font-size:12px;'>
2012/2/23
We selected a sample of 437 BL Lac objects, taken from the RomaBZCat catalogue, for which spectroscopic information and SDSS photometry is available. We propose a new classification of BL Lacs in whic...
F-GAMMA: On the phenomenological classification of continuum radio spectra variability patterns of Fermi blazars
F-GAMMA phenomenological classification continuum radio spectra variability patterns Fermi blazars
font style='font-size:12px;'>
2012/2/21
The F-GAMMA program is a coordinated effort to investigate the physics of Active Galactic Nuclei (AGNs) via multi-frequency monitoring of Fermi blazars. In the current study we show and discuss the ev...
Advanced Morphological Galaxy Classification: A Comparison of Real and Simulated Galaxies
galaxies: structure — galaxies: evolution — methods: numerical
font style='font-size:12px;'>
2011/10/18
Encoded within the morphological structure of galaxies are clues related to their formation and evolutionary history. Recent advances pertaining to the statistics of galaxy morphology include sophisti...
Hipparcos Variable Star Detection and Classification Efficiency
Variable Star Detection Classification Efficiency
font style='font-size:12px;'>
2011/10/11
A complete periodic star extraction and classification scheme is set up and tested with the Hipparcos catalogue. The efficiency of each step is derived by comparing the results with prior knowledge co...
Classification of field dwarfs and giants in RAVE and its use in stellar stream detection
Galaxy Astrophysics (astro-ph.GA)
font style='font-size:12px;'>
2011/1/7
An efficient separation between dwarfs and giants in surveys of bright stars is important, especially for studies in which distances are estimated through photometric parallax relations.
Revisiting the Hubble sequence in the SDSS DR7 spectroscopic sample: a publicly available bayesian automated classification
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Instrumentation and Methods for Astrophysics (astro-ph.IM)
font style='font-size:12px;'>
2011/1/5
We present an automated morphological classification in 4 types (E,S0,Sab,Scd) of ~700.000 galaxies from the SDSS DR7 spectroscopic sample based on support vector machines. The main new property of th...
Automated Morphological Classification of SDSS Red Sequence Galaxies
Cosmology and Extragalactic Astrophysics (astro-ph.CO)
font style='font-size:12px;'>
2010/12/29
In the last decade, the advent of enormous galaxy surveys has motivated the development of automated morphological classification schemes to deal with large data volumes. Existing automated schemes ca...
Statistical Classification Techniques for Photometric Supernova Typing
Cosmology and Extragalactic Astrophysics (astro-ph.CO) Applications (stat.AP)
font style='font-size:12px;'>
2010/12/24
Future photometric supernova surveys will produce vastly more candidates than can be followed up spectroscopically, highlighting the need for effective classification methods based on lightcurves alon...
Spectral Classification and Analysis of Nuclear Activity in the UZC-Compact Group Sample
Spectral Classification UZC-Compact Group Sample Nuclear Activity
font style='font-size:12px;'>
2009/7/9
Spectral Classification and Analysis of Nuclear Activity in the UZC-Compact Group Sample。
Quantitative Spectral Classification. Analysis of K-M Giant Stars in the Visible and Near-IR region
Spectral Classification Near-IR region K-M Giant Stars
font style='font-size:12px;'>
2009/6/30
Quantitative Spectral Classification. Analysis of K-M Giant Stars in the Visible and Near-IR region。
Quantitative Stellar Spectral Classification. III. Spectral Resolution
Stellar Spectral Classification Spectral Resolution
font style='font-size:12px;'>
2009/6/25
Quantitative Stellar Spectral Classification. III. Spectral Resolution。
On the classification of magnetic cataclysmic variables
magnetic cataclysmic variables classification
font style='font-size:12px;'>
2009/6/17
On the classification of magnetic cataclysmic variables。
Quantitative Stellar Spectral Classification. II. Early Type Stars
Stellar Spectral Classification Early Type Stars
font style='font-size:12px;'>
2009/6/11
Quantitative Stellar Spectral Classification. II. Early Type Stars。
Quantitative Stellar Spectral Classification. II. Early Type Stars
Stellar Spectral Classification Early Type Stars
font style='font-size:12px;'>
2009/6/10
Quantitative Stellar Spectral Classification. II. Early Type Stars。
Quantitative Stellar Spectral Classification
Spectral Classification Stellar
font style='font-size:12px;'>
2009/6/5
Quantitative Stellar Spectral Classification。