'Ask a Spaceman' Seeks Out the Elusive Quark Star in Finale
'Ask a Spaceman' Seeks Out the Elusive Quark Star in Finale
After guiding us through the universe, Space.com's astrophysicist and columnist, Paul Sutter, closes his basic astronomy series this week by looking at the arguments for and against the existence of quark stars.
In Episode 12 From the Facebook Watch series "Ask a Spaceman", Sutter continues to explore the theme of these stars, finishing a miniseries that began with Episode 10 Y Episode 11. Scientists have not yet observed the stars of quarks, but objects can exist. Such a star would be a remnant left over from a star that exploded and would pack even more densely than a star. neutron star; The quarks star would have a gravity so strong that the fundamental particles of the nucleus, such as protons and neutrons, would decompose into its constituent parts, called quarks.
"Is there an astrophysical scenario that enables them? [quark stars] Appear in our universe? "Sutter asks in the new episode At first, he suggests that there might be some things that we categorize as dwarf stars that are denser and more massive than physics suggests, so maybe we have seen quark stars, but we can not distinguish the difference between a quark star and a neutron star: they look too much, says Sutter.
The[[Supernova Fail: The giant dying star collapses directly into the black hole]
Or maybe the quark stars are "out there" but they're invisible for some reason, because there seems to be a gap between the most massive neutron star we see and the least massive black hole we see. (The "sweet spot" of the existence of a quarks star appears to be two to three times the mass of the sun, says Sutter). Also, maybe we have not been doing telescopic astronomy long enough to see the stars of quarks, which could be extremely rare, he says.
It is also difficult to predict how to put together a quark star. As Sutter explained in episode 11, quarks come in six "flavors": up, down, up, down, strange and charming. Protons and neutrons are composed of quarks up and down, but if you were to build a quark star with these quarks, that star would be unstable. The quark stars would stabilize with the addition of strange quarks, but strange quarks are not very common in the universe. It is not clear if the universe has produced enough strange quarks to make the stars of the quarks possible, Sutter said.
Sutter closes the last episode by suggesting about the quark stars: "Maybe nature does not create them, because nature is not as interested as we are". For more information about quark stars, you can check Sutter's column on them..
To see all the episodes of the Facebook Watch series "Ask a Spaceman", take a look (and maybe "I like it") Facebook page for the show. Sutter also answers questions from readers in each episode. See the page for more information on previous topics the program has covered, such as the Big Bang, Pluto and galaxy collisions.
Sutter is a cosmologist at Ohio State University and a senior scientist at the Columbus Ohio Center for Science and Industry. It has a long-term podcast, also called "Ask a Spaceman". You can see all the past episodes of that podcast here.
Follow us on Twitter @Spacedotcom and in Facebook. Original article about Space.com.
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