Nova remnant

Short description: Cosmic matter (remnant)

GK Persei: Nova of 1901 – remnant

A nova remnant is made up of the material either left behind by a sudden explosive fusion eruption by classical novae, or from multiple ejections by recurrent novae. Over their short lifetimes, nova shells show expansion velocities of around 1000 km/s,[1] whose faint nebulosities are usually illuminated by their progenitor stars via light echos as observed with the spherical shell[1] of Nova Persei 1901[2] or the energies remaining in the expanding bubbles like T Pyxidis.[3]

## Contents

* 1 Form
* 2 See also
* 3 References
* 4 External links

## Form

Nova T Pyxidis – remnant

Most novae require a close binary system, with a white dwarf and a main sequence, sub-giant, or red giant star, or the merging of two red dwarfs, so probably all nova remnants must be associated with binaries.[4] This theoretically means these nebula shapes might be affected by their central progenitor stars and the amount of matter ejected by novae.[1] The shapes of these nova nebulae are of much interest to modern astrophysicists.[1][4]

Nova remnants when compared to supernova remnants or planetary nebulae generate much less both in energy and mass. They can be observed for perhaps a few centuries.[1] Notably, more nova remnants have been found with the new novae, due to improved imaging technology like CCD and at other wavelengths. Examples of novae displaying nebula shells or remnants include the following:[1]

* GK Per
* RR Pic
* DQ Her
* FH Ser
* V476 Cyg
* V1974 Cyg
* HR Del
* V1500 Cyg

## See also

* Planetary nebula
* Supernova remnant

## References

1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 Lloyd, H.M.; O'Brien, T.J.; Bode, M.F. (1997). "Shaping of nova remnants by binary motion". Monthly Notices of the Royal Astronomical Society 284 (1): 137–147. doi:10.1093/mnras/284.1.137. Bibcode: 1997MNRAS.284..137L. http://e-space.mmu.ac.uk/601306/2/lob97.pdf.
2. ↑ Liimets, T.; Corradi, R.L.M.; Santander-García, M.; Villaver, E.; Rodríguez-Gil, P.; Verro, K.; Kolka, I. (2014). "A dynamical study of the nova remnant of GK Persei / stella novae: Past and future decades". Stellar Novae: Past and Future Decades. 490. pp. 109–115. Bibcode: 2014ASPC..490..109L.
3. ↑ Ogley, R. N.; Chaty, S.; Crocker, M.; Eyres, S. P. S.; Kenworthy, M. A.; Richards, A. M. S.; Rodriguez, L. F.; Stirling, A. M. (Apr 2002). "A search for radio emission from Galactic supersoft X-ray sources". Monthly Notices of the Royal Astronomical Society 330 (4): 772–777. doi:10.1046/j.1365-8711.2002.05130.x. Bibcode: 2002MNRAS.330..772O. http://www3.interscience.wiley.com/journal/120798871/abstract?CRETRY=1&SRETRY=0.
4. ↑ 4.0 4.1 Bode, M.F. (2002). "The Evolution of Nova Remnants". International Conference on Classical Nova Explosions. 637. pp. 497–508. doi:10.1063/1.1518252. Bibcode: 2002AIPC..637..497B.

## External links

* "T Pyxidis". 1997. http://hubblesite.org/newscenter/archive/releases/1997/29.
* "Double-star systems cycle between big and small blasts". http://www.ociw.edu/news/zcam.
* "Nova Remnant comparison table". http://www.site.uottawa.ca:4321/astronomy/index.html#novaremnant_table.
* "Nova Remnant". http://www.site.uottawa.ca:4321/astronomy/index.html#novaremnant.

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Nebula

Visible nebula|

* Dark nebula
* Diffuse nebula
* Emission nebula
* Planetary nebula
* Supernova remnant
* Nova remnant
* H II region
* Reflection nebula
* Variable nebula
* Preplanetary nebula

Pre-stellar nebula|

* Giant molecular cloud
* Bok globule
* Evaporating gaseous globule
* Solar nebula

Stellar nebula|

* Nova remnant
* Protoplanetary nebula
* Wolf–Rayet nebula

Post-stellar nebula|

* Planetary nebula
* Supernova remnant
* Pulsar wind nebula
* Supershell

Clouds|

* Interstellar cloud
* Molecular cloud
* Infrared cirrus
* High-velocity cloud
* H I region

Morphology|

* Bipolar nebula
* Pinwheel nebula

Lists|

* Diffuse
* Planetary (PNe)
* Protoplanetary (PPNe)
* Supernova remnants (SNRs)

* Category
* Commons
* Wiktionary

* v
* t
* e

Stars

Formation|

* Accretion
* Molecular cloud
* Bok globule
* Young stellar object
* Protostar
* Pre-main-sequence
* Herbig Ae/Be
* T Tauri
* FU Orionis
* Herbig–Haro object
* Hayashi track
* Henyey track

Evolution|

* Main sequence
* Red-giant branch
* Horizontal branch
* Red clump
* Asymptotic giant branch
* Blue loop
* Protoplanetary nebula
* Planetary nebula
* PG1159
* Dredge-up
* Instability strip
* Luminous blue variable
* Blue straggler
* Stellar population
* Supernova
* Superluminous supernova / Hypernova

Spectral
classification|

* Early
* Late
* Main sequence
* O
* B
* A
* F
* G
* K
* M
* Brown dwarf
* WR
* OB
* Subdwarf
* O
* B
* Subgiant
* Giant
* Blue
* Red
* Yellow
* Bright giant
* Supergiant
* Blue
* Red
* Yellow
* Hypergiant
* Yellow
* Carbon
* S
* CN
* CH
* White dwarf
* Chemically peculiar
* Am
* Ap/Bp
* HgMn
* Helium-weak
* Barium
* Extreme helium
* Lambda Boötis
* Lead
* Technetium
* Be
* Shell
* B[e]

Remnants|

* White dwarf
* Helium planet
* Black dwarf
* Neutron
* Radio-quiet
* Pulsar
* Binary
* X-ray
* Magnetar
* Stellar black hole
* X-ray binary
* Burster

Hypothetical|

* Blue dwarf
* Green
* Black dwarf
* Exotic
* Boson
* Electroweak
* Strange
* Preon
* Planck
* Dark
* Dark-energy
* Quark
* Q
* Black
* Gravastar
* Frozen
* Quasi-star
* Thorne–Żytkow object
* Iron
* Blitzar

Stellar
nucleosynthesis|

* Deuterium burning
* Lithium burning
* Proton–proton chain
* CNO cycle
* Helium flash
* Triple-alpha process
* Alpha process
* Carbon burning
* Neon burning
* Oxygen burning
* Silicon burning
* S-process
* R-process
* Fusor
* Nova
* Symbiotic
* Remnant
* Luminous red nova

Structure|

* Core
* Convection zone
* Microturbulence
* Oscillations
* Radiation zone
* Atmosphere
* Photosphere
* Starspot
* Chromosphere
* Corona
* Stellar wind
* Bubble
* Bipolar outflow
* Accretion disk
* Asteroseismology
* Helioseismology
* Eddington luminosity
* Kelvin–Helmholtz mechanism

Properties|

* Designation
* Dynamics
* Effective temperature
* Luminosity
* Kinematics
* Magnetic field
* Absolute magnitude
* Mass
* Metallicity
* Rotation
* Starlight
* Variable
* Photometric system
* Color index
* Hertzsprung–Russell diagram
* Color–color diagram

Star systems|

* Binary
* Contact
* Common envelope
* Eclipsing
* Symbiotic
* Multiple
* Cluster
* Open
* Globular
* Super
* Planetary system

Earth-centric
observations|

* Sun
* Solar System
* Sunlight
* Pole star
* Circumpolar
* Constellation
* Asterism
* Magnitude
* Apparent
* Extinction
* Photographic
* Radial velocity
* Proper motion
* Parallax
* Photometric-standard

Lists|

* Proper names
* Arabic
* Chinese
* Extremes
* Most massive
* Highest temperature
* Largest volume
* Smallest volume
* Brightest
* Historical
* Most luminous
* Nearest
* Nearest bright
* With exoplanets
* Brown dwarfs
* White dwarfs
* Milky Way novae
* Supernovae
* Candidates
* Remnants
* Planetary nebulae
* Timeline of stellar astronomy

Related articles|

* Substellar object
* Brown dwarf
* Sub-brown dwarf
* Planet
* Galactic year
* Galaxy
* Guest
* Gravity
* Intergalactic
* Starfield
* Tidal disruption event

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