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Photometric observations in the R band for 13 nights were also obtained during the same period. The continuum and broad-line fluxes of the galaxy were found to vary during our monitoring period. The R-band differential light curve with respect to a companion star also shows a similar ...
Onken C A,Peterson B A.The Mass of the Central Black Hole in the Seyfert galaxy NGC 3783.The Astro.Physical.Journal. 2002Metzroth K.G., Onken C.A. and Peterson B.M. (2006). "The Mass of the Central Black Hole in the Seyfert Galaxy NGC 4151". ApJ, 647:901-909. URL http://...
A new study reveals the most precise information yet about the mass of the enormous black hole at the center of our galaxy. Like most galaxies, the Milky Way has a supermassive black hole at its heart, and the recent research shows more about the mass of this monster calledSagittarius A*o...
2 Today, by far the strongest case for a supermassive black hole can be made for our own Galaxy. Modern high-resolution, infra-red imaging reveals that the stars in the central-most regions of our Galaxy are orbiting an unseen mass of 2.6×106M⊙ [14–16]. Furthermore, studies of the...
Black-hole-triggered star formation in the dwarf galaxy Henize 2-10 Article 19 January 2022 Data availability All photometric data are available in Supplementary Table 2 and the spectra of AT 2020neh will be made publicly available to the community via WISeREP96 (https://www.wiserep.org...
X-1/ A0470 Physics of black holes A0240 Geometry, differential geometry, and topology A9880D Theoretical cosmologyIn this small review we present the actual state the knowledge about weighting black holes. Black holes can be found in stellar binary systems in our Galaxy and in other nearby ...
average[3], which allows for an average mass increase of the quasar through baryonic matter of less than a factor of two. This is in line with the observation that the most massive black hole in our vicinity, i.e. at the center of M87, has att=13.7Gyrandz≈0the same mass as the ...
Currently, astronomers believe that supermassive black holes sit at the center of every galaxy as massive as or larger than the Milky Way. But they're also curious about black holes in smaller galaxies such as NGC 4395. Knowing the mass of the black hole at the center of NGC 4395 and bei...
2020 Nobel Laureates Andrea Ghez and Reinhard Genzel, who very precisely followed the motions of stars called S-stars in the Milky Way’s center to show they were looping around a massive, compact, invisible object:Sagittarius A*, our galaxy’s 4.3-million-solar-mass supermassive black hole. ...