Difference between Supernova Type Ia and Nova
2021年7月18日 · In a nova, a layer of hydrogen is pulled from a regular star, forming a kind of dense atmosphere around the white dwarf. This atmosphere is heated by the white dwarf, until …
What does it mean for a star to go nova or supernova? Can I safely ...
Generally, a Nova is not what we think of (i.e. a star exploding). That's actually a Type II Supernova. According to that site: Novae are frequently (perhaps always) members of binary …
Why does a white dwarf sometimes go 'nova' and sometimes …
2024年3月20日 · It will end in a supernova type Ia when it exceeds the mass limit for a white dwarf of about 1.4 solar masses (the so-called Chandrasekhar limit) - the limit when it actually …
Are Superluminous supernova and Hypernova the same thing?
2022年2月3日 · Superluminous supernovae are supernovae that are substantially brighter than a typical supernova. There may be a number of reasons that supernova might be Bright: A pair …
Can a black hole "supernova"? - Astronomy Stack Exchange
2019年5月24日 · Not even supernova. When the big star dies (bigger than our sun), a supernova occurs. Your question, black hole, is the process AFTER the supernova. If a star is pretty big …
Is a kilonova bigger than a supernova? - Astronomy Stack Exchange
(A core-collapse supernova undoubtedly puts out much more energy in the form of neutrinos as well.) What matter is ejected by a kilonova does go out faster (30-60,000 km/s, versus about …
telescope - How to visually tell the difference between a planetary ...
A Supernova Remnant contains a Black Hole or a Neutron Star while a Planetary Nebula contains a White Dwarf. Also, Supernovae Remnants are likely to have great velocities, so Doppler is …
Core collapse supernova vs Neutron Star - Astronomy Stack …
2018年2月15日 · Supernova and the formation of a Neutron star: The core of heavier stars ($9-100 M_{\odot}$) are, too, mostly held up by degenerate electron. During the lifetime of the star …
How loud would a supernova, kilonova, and hypernova be?
2021年5月19日 · If we suppose that the same fraction of a supernova's energy is converted to sound, and a supernova releases 10 44 joules, That means that about 10 44 /(840 billion) = 10 …
supernova - What's the safe distance from a hypernova?
2021年1月23日 · If a hypernova is dangerous within 5,000 lightyears, there will be a radius of the maximum of 1,000 stars assuming 5 lightyears of radius between stars on average; cube that …