posted on Oct, 16 2012 @ 05:21 PM
reply to post by paxnatus
Ahh space, all the similar terminology can be pretty confusing.
The two articles you have linked are not discussing the same black hole or discovery. There are a couple different types of black holes.
Stellar-mass black holes are 5 to a couple 10's of times the solar mass of our sun. Intermediate-mass black holes are many 10's to 100's or
1000's of solar masses, and Supermassive black holes are 100,000's to 1,000,000,000,000's of times the solar mass. Side note; fun fact, our sun
contains 99.86% of all the mass in our solar system and the earth only makes up about .000303% of it.
"The pattern we're seeing is observed in X-ray novae where the central object is a black hole. Once the X-rays fade away, we hope to measure its
mass and confirm its black hole status," said Boris Sbarufatti, an astrophysicist at Brera Observatory in Milan, Italy, who currently is working with
other Swift team members at Penn State in University Park, Pa.
Read more at: phys.org...
The first article you linked discusses the discovery of a stellar-mass black hole or neutron star that was detected through the observation of an
x-ray novae(NEAR the center of our galaxy). There are a dozen or so believed confirmed observations of stellar-mass and intermediate mass black holes
in our Milky Way Galaxy, but 100's to 1000's are speculated to be in our galaxy. With black holes being born from dead stars and there being two
hundred to four hundred billion stars in the milky way alone I feel like this is a pretty fair assumption.
The second article linked is discussing the discovery of a star that orbits incredibly close around the supermassive blackhole at the center of the
Milky Way. It finishes an orbit around the supermassive black hole in about 16 earth years! This is awesome because it means that it may be close
enough for us to observe the warp of space time around the star caused by the blackhole's gravitational pull as predicted by Einstein's theory of
general relativity. We believe it to be common place, if not an essential part of, for galaxies to contain a supermassive black hole at the their
Two great articles, thanks for the post. Keep thinkin about space! ^_^