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Astronomers find a “cataclysmic” pair of stars with the shortest orbit yet（图）
“灾难性”恒星 恒星 双星系统
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2023/6/9
Nearly half the stars in our galaxy are solitary like the sun. The other half comprises stars that circle other stars, in pairs and multiples, with orbits so tight that some stellar systems could fit ...
Giant Planets Carving Paths around Four Young Stars,ALMA Observations Suggest
Giant Planets Carving Paths Four Young Stars ALMA
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2015/12/22
Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have found the clearest evidence yet that giant planets have recently formed around four young stars. These new worlds, each p...
AMBER high-spectral resolution interferometry of Be stars: More than just stars and disks?
high-spectral resolution interferometry stars disks
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2011/10/17
High spectral-resolution Br-gamma VLTI/AMBER observations of classical Be stars reveal complex visibility, phase, and closure phase profiles, which were not seen in previous lower-resolution data. The...
The Factory and The Beehive I. Rotation Periods For Low-Mass Stars in Praesepe
Factory Beehiv Rotation Periods Low-Mass Stars Praesepe
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2011/10/12
Stellar rotation periods measured from single-age populations are critical for investigating how stellar angular momentum content evolves over time, how that evolution depends on mass, and how rotatio...
Rossby waves and polar spots in rapidly rotating stars: Implications for stellar wind evolution
magnetic fi eld – Stars: activity – Stars: starspots – Stars: oscillations – Physical data and processes: Magnetohydrodynamics
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2011/10/10
Rapidly rotating stars show short-period oscillations in magnetic activity and polar appearance of starspots. The aim of this paper is to study large-scale shallow water waves in the tachoclines of ra...
Variability in the CoRoT photometry of three hot O-type stars. HD 46223, HD 46150 and HD 46966
stars: variables: general – stars: early-type – stars: individual: HD 46223 – stars: individual: HD 46150 – stars: individual: HD 46966 – stars: oscillations
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2011/9/27
The detection of pulsational frequencies in stellar photometry is required as input for asteroseismological modelling. The second short run (SRa02) of the CoRoT mission has provided photometric data o...
Chemical composition in fast rotators main sequence stars
Chemical composition main sequence stars
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2009/7/10
Chemical composition in fast rotators main sequence stars。
The Evolution of Circumstellar Medium around Rotating Massive Stars
Circumstellar Medium Rotating Massive Stars
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2009/6/30
The Evolution of Circumstellar Medium around Rotating Massive Stars。
Probing structure and populations of our Galaxy using the kinematics of old stars. II
Probing structure kinematics of old stars Galaxy
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2009/6/30
Probing structure and populations of our Galaxy using the kinematics of old stars. II。
Probing structure and populations of our Galaxy using the kinematics of old stars. I
Probing structure kinematics of old stars Galaxy
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2009/6/30
Probing structure and populations of our Galaxy using the kinematics of old stars. I。
An empirical criterion to classify T Tauri stars and substellar analogs using low-resolution spectroscopy
T Tauri stars low-resolution spectroscopy
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2009/6/18
An empirical criterion to classify T Tauri stars and substellar analogs using low-resolution spectroscopy。
Winds from Low Mass Stars：impact on the ISM
Winds Low Mass Stars
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2009/6/16
Winds from Low Mass Stars：impact on the ISM。
Exploring the central engines of young stars
young stars central engines
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2009/6/10
Exploring the central engines of young stars。
An Apparent Descriptive Method for Judging the Synchronization of Rotation of Binary Stars
Binary stars synchronization of rotation
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2009/5/14
The problem of the synchronous rotation of binary stars is
judged by using a synchronous parameter Q introduced in an apparent
descriptive method. The synchronous parameter Q is defined as the ratio...
On Surface Tension for Compact Stars
Relativity pulsars equation of state
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2009/5/12
In an earlier analysis it was demonstrated that general relativity
gives higher values of surface tension in strange stars with quark
matter than neutron stars.We generate the modified Tolman–Oppenh...