搜索结果: 1-14 共查到“天文学 curve”相关记录14条 . 查询时间(0.031 秒)
A remarkable long-term light curve, and deep, low-state spectroscopy: Swift & XMM-Newton monitoring of the NLS1 galaxy Mkn 335
remarkable long-term light curve low-state spectroscopy Swift XMM-Newton monitoring the NLS1 galaxy
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2012/2/23
The Narrow-line Seyfert 1 galaxy (NLS1) Mkn 335 is remarkable because it has repeatedly shown deep, long X-ray low-states which show pronounced spectral structure. It has become one of the prototype A...
Light Curve Analysis of Hipparcos Data for the Massive O-type Eclipsing Binary UW CMa
Light Curve Hipparcos Data Binary UW CMa
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2010/11/11
Hipparcos photometric data for the massive O-type binary UWCMa were analysed within the framework of the Roche model. Photometric solutions were obtained for five mass ratios in the q = M2/M1 = 0.5 &#...
Light Curve Solutions of Eclipsing Binaries in SMC
eclipsing binaries light curves modeling Small Magellanic Cloud global parameters
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2010/11/12
We propose a procedure for light-curve solution of eclipsing bi-nary stars in the Small Magellanic Cloud for which photometric data have been obtained in the framework of the OGLE project as well as w...
A Revised Historical Light Curve of Eta Carinae and the Timing of Close Periastron Encounters
Solar and Stellar Astrophysics (astro-ph.SR) High Energy Astrophysical Phenomena (astro-ph.HE)
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2011/1/7
The historical light curve of the 19th century "Great Eruption" of etaCar provides a striking record of violent instabilies encountered by the most massive stars. We report and analyze newly uncovered...
The power spectrum of the residual rotation curve velocity as a probe of past mergers
Galaxy Astrophysics (astro-ph.GA)
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2010/12/27
According to the $\Lambda CDM$ cosmological framework, galaxies underwent multiple mergers in their history. In this paper we propose to use the power spectrum of the residual fluctuations of the rota...
Photometric Observation and Light Curve Analysis of Binary System ER-Orionis
Photoelectric photometry—eclipsing binaries—overcontact systems
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2010/9/15
Photometric observations of the over-contact binary ER ORI were performed during November 2007 and February to April 2008 with the 51 cm telescope of Biruni Observatory of Shiraz University in U, B an...
Breaking the Cost Curve in Observatory Operations
Cost Curve Observatory Operations
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2009/7/1
Breaking the Cost Curve in Observatory Operations。
A new determination of the rotation curve from galactic disk planetary nebulae
rotation curve planetary nebulae
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2009/6/25
A new determination of the rotation curve from galactic disk planetary nebulae。
The crust cooling curve of the neutron star in mxb 1659{29
crust cooling curve neutron star mxb 1659{29
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2009/6/17
The crust cooling curve of the neutron star in mxb 1659{29。
The importance of atmospheric extinction measures and The mean extinction curve for San Pedro Mártir
atmospheric extinction San Pedro Mártir mean extinction curve
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2009/6/11
The importance of atmospheric extinction measures and The mean extinction curve for San Pedro Mártir。
Velocity Curve Analysis of the Spectroscopic Binary Stars PV Pup, HD 141929, EE Cet and V921 Her by Nonlinear Regression
Stars binaries eclipsing—stars binaries spectroscopic
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2009/5/12
We use the method introduced by Karami & Mohebi (2007),
and Karami & Teimoorinia (2007) which enable us to derive the orbital
parameters of the spectroscopic binary stars by the nonlinear least squa...
ESTIMATION OF THE SW LAC PARAMETERS BASED ON THE LIGHT-CURVE ANALYSIS
SW LAC PARAMETERS LIGHT-CURVE ANALYSIS
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2009/4/3
ESTIMATION OF THE SW LAC PARAMETERS BASED ON THE LIGHT-CURVE ANALYSIS。
LIGHT CURVE ANALYSIS OF THE LATE TYPE BINARY V523 CASSIOPEIAE
binaries: close binaries: eclipsing Stars: individual: V523 Cas Stars: late-type Stars: activity
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2010/10/29
We present the analysis of V and R light curves of the late type contact binary V523 Cas for the season of 2006. These observations make part of the monitoring program aimed at studying the long-term ...
Velocity Curve Studies of Spectroscopic Binary Stars V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph
Stars binaries eclipsing—stars binaries spectroscopic
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2010/9/15
Using measured radial velocity data of five double lined spectroscopic binary systems V380 Cygni, V401 Cyg, V523 Cas, V373 Cas and V2388 Oph, we find corresponding orbital and spectroscopic elements v...