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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Tracing the Evolution of SMBHs and Stellar Objects in Galaxy Mergers: A Multi-mass Direct N-body Model
星系合并 SMBH 恒星物体演化 多质量 直接N体模型
2023/11/13
By using direct N-body numerical simulations, we model the dynamical coevolution of two supermassive black holes (SMBHs) and the surrounding stars in merging galaxies. In order to investigate how diff...
Baby stars hatch from stellar eggs near galaxy’s center（图）
Baby stars hatch stellar eggs near galaxy center
2021/4/9
Astronomers have found stellar eggs containing baby stars around the center of the Milky Way galaxy. To make the discovery, the scientists used NSF's Atacama Large Millimeter/submillimeter Array (ALMA...
Images from solar observatory peel away layers of a stellar mystery（图）
Images solar observatory peel away layers stellar mystery
2019/11/22
NSF-funded scientists at the New Jersey Institute of Technology have shed new light on one of the central mysteries of solar physics: how energy from the sun is transferred to the star's upper atmosph...
Astronomers find a golden glow from a distant stellar collision（图）
Astronomers golden glow distant stellar collision
2019/11/15
An NSF-supported team of astronomers found new evidence of the occurrence of a kilonova -- a cosmic explosion that creates massive amounts of gold and platinum -- that went unnoticed during initial ob...
New Stellar Streams Confirm ‘Melting Pot’History of the Galaxy（图）
New Stellar Streams Melting Pot History of the Galaxy
2018/1/31
Where do the stars in our Galaxy come from? All the stars we see in the night-time sky belong to our Milky Way galaxy, and while most stars were likely born here, in the Milky Way, many appear to have...
Organizers of SABID 2017 workshop solicit high-quality original research papers in the closely related areas of solar and stellar astronomy big data. Innovative data mining techniques in these fields ...
Protostar Blazes Bright,Reshaping Its Stellar Nursery
Protostar Blazes Bright Reshaping Stellar Nursery
2017/3/30
A massive protostar, deeply nestled in its dust-filled stellar nursery, recently roared to life, shining nearly 100 times brighter than before. This outburst, apparently triggered by an avalanche...
Young Stellar System Caught in Act of Forming Close Multiples
Young Stellar System Caught Forming Close Multiples
2016/11/4
For the first time, astronomers have seen a dusty disk of material around a young star fragmenting into a multiple-star system. Scientists had suspected such a process, caused by gravitational instabi...
Fictions,Conditionals,and Stellar Astrophysics
Scientific fictions realism stellar astrophysics conditionals
2016/6/15
This article argues in favour of an inferential role for fictions in scientific modelling. The argument proceeds by means of a detailed case study, namely models of the internal structure of stars in ...
Dust grains could be remnants of stellar explosions billions of years ago
Dust grains remnants stellar explosions billions
2016/3/21
Microscopic dust particles have been found in meteoritic material on Earth, particles that were likely formed in stellar explosions that occurred long before the creation of our star, the sun.Whether ...
Dust grains could be remnants of stellar explosions billions of years ago
Dust grains stellar explosions billions
2016/3/14
Microscopic dust particles have been found in meteoritic material on Earth, particles that were likely formed in stellar explosions that occurred long before the creation of our star, the sun.Whether ...
That is just what happens in an unnamed binary star system nearly 10,000 light years from Earth. The newly discovered system, known only by its astronomical catalog number TYC 2505-672-1, sets a new r...
Stellar parenting:Making new stars by 'adopting' stray cosmic gases
Stellar parenting Making new stars adopting stray cosmic gases
2016/2/22
Among the most striking objects in the universe are glittering, dense swarms of stars known as globular clusters. Astronomers had long thought globular clusters formed their millions of stars in bulk ...
On-orbit Stellar Camera Calibration based on Space Resection with Multi-images
on-orbit calibration stellar camera space resection multi star images satellite attitude accuracy
2015/11/20
Due to the intense vibration and/or the change of space environmental factors such as temperature, pressure, etc., the stellar camera parameters might change during satellites launching or while orbit...
ABSOLUTE RADIOMETRIC CALIBRATION OF THE IKONOS SENSOR USING RADIOMETRICALLY CHARACTERIZED STELLAR SOURCES
IKONOS Sensor Multispectral Radiometric Calibration Stellar
2015/5/12
Radiometric calibration of remote sensing satellites has traditionally been accomplished by means of vicarious ground calibration
techniques. These methods employ extensive modelling algorithms to d...