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Originally posted by asala
wow yes i think i seen this tonight,
I guess this is what it was that i saw then,
Speeding star observed with VLT hints at massive black hole.
Using ESO’s Very Large Telescope, astronomers have recorded a massive star moving at more than 2.6 million kilometres per hour.
Astronomers may have discovered a massive black hole
Astronomers from British and German universities have made a new discovery which could provide evidence for a previously unknown supermassive black hole millions of times heavier than the sun.
Astrophysics, abstract astro-ph/0511321
From: Ulrich Heber [view email]
Date: Thu, 10 Nov 2005 18:21:29 GMT (122kb)
HE 0437-5439 -- an unbound hyper-velocity main-sequence B-type star
Authors: Heinz Edelmann, Ralf Napiwotzki, Uli Heber, Norbert Christlieb, Dieter Reimers
Comments: 13 pages, 4 figures. Astrophysical Journal Letters, accepted
We report the discovery of a 16th magnitude star, HE0437-5439, with a heliocentric radial velocity of +723+-3km/s. A quantitative spectral analysis of high-resolution optical spectra obtained with the VLT and the UVES spectrograph shows that HE0437-5439 is a main sequence B-type star with Teff=20350K, log g=3.77, solar within a factor of a few helium abundance and metal content, rotating at v sin i=54km/s. Using appropriate evolutionary tracks we derive a mass of 8 Msun and a corresponding distance of 61 kpc.
Originally posted by Regenmacher
Venus is well placed to be viewed this month in the southwestern sky shortly after sunset. It is the brightest thing in Earth's sky other than the Sun and Moon. Unless you wait too late, you can't miss it.
Originally posted by BomSquad
We need to know what is out "there".
ScienceDaily (Jan. 29, 2008) — A young star is speeding away from the Milky Way so fast that astronomers have been puzzled by where it came from; based on its young age it has traveled too far to have come from our galaxy. Now by analyzing its velocity, light intensity, and for the first time its tell-tale elemental composition, Carnegie astronomers Alceste Bonanos and Mercedes López-Morales, and collaborators Ian Hunter and Robert Ryans from Queen's University Belfast have determined that it came from our neighboring galaxy, the Large Magellanic Cloud (LMC). The result suggests that it was ejected from that galaxy by a yet-to-be-observed massive black hole
Originally posted by dgtempe
This thread is 3 years old.
I dont get it. Is this still around?