List of neutron stars

Short description: Astronomical objects

File:Zooming in on the very faint neutron star RX J1856.5-3754.ogv Neutron stars are the collapsed cores of supergiant stars.[1] They are created as a result of supernovas and gravitational collapse,[2] and are the second-smallest and densest class of stellar objects.[3] In the cores of these stars, protons and electrons combine to form neutrons.[2] Neutron stars can be classified as pulsars if they are magnetized, if they rotate, and if they emit beams of electromagnetic radiation out of their magnetic poles.[4] They may include soft gamma repeaters (SGR) and radio-quiet neutron stars, as well as pulsars such as radio pulsars, recycled pulsars, low mass X-ray pulsars, and accretion-powered pulsars. A notable grouping of neutron stars includes the Magnificent Seven.

## Contents

* 1 List of neutron stars
* 1.1 Anomalous X-ray pulsars
* 2 Binary star systems
* 3 Related objects
* 4 See also
* 5 References

## List of neutron stars

This list is incomplete; you can help by expanding it.

Caption text  Designation | Popular name | Type | Constellation | Right ascension | Declination | Distance (pc) | Mass (M☉) | Radius (km) | Spin period (sec) | Temperature) (K) | Notes

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SGR 1806−20 |  | Magnetar | Sagittarius | 18h 08m 39.32s | −20° 24' 39.5" | 13,000 |  |  | 7.55592 |  |
RCW 103 |  | Radio-quiet | Norma | 16h 17m 33.000s | −51° 02' 00.00" | 3,100-3,300 |  |  |  |  |
1RXS J141256.0+792204 | Calvera | Radio-quiet | Ursa Minor | 14h 12m 55.867s | +79° 22' 03.895" | ≤2,000 |  |  | 0.059199071070 |  |
RX J0822−4300 | Cosmic Cannonball | Radio-quiet | Puppis | 08h 23m 8.16s | −42° 41′ 41.4″ | 2,000 |  |  |  |  |
PSR B1937+21 |  | Pulsar | Vulpecula | 19h 39m 38.560210s | +21° 34′ 59.14166″ | >3,600 |  |  | 0.0015578065 |  |
RX J1856.5−3754 |  |  | Corona Australis | 18h 56m 35s | −37° 54′ 36″ | 122 | 1.5 | 12.1 |  |  | The Magnificent Seven
RBS1556 |  |  |  |  |  |  |  |  |  |  | The Magnificent Seven
RBS1223 |  |  |  |  |  |  |  |  |  |  | The Magnificent Seven
RX J0720.4−3125 |  |  | Canis Major | 07h 20m 24.961s | −31° 25′ 50.21″ | 360 |  | 4.50 - 5.38 |  |  | The Magnificent Seven
RX J0420.0-5022 |  |  |  |  |  |  |  |  |  |  | The Magnificent Seven
PSR B1937+21 |  | Pulsar | Vulpecula | 19h 39m 38.560210s | +21° 34′ 59.14166″ | 3,600 |  |  | 0.0015578065 |  | First-discovered millisecond pulsar
PSR B1957+20 | Black Widow Pulsar | Eclipsing binary pulsar | Sagitta | 19h 59m 36.77s | +20° 48′ 15.12″ | 2000 | 1.66 - 1.8 |  | 0.00160734 |  |
PSR B0531+21 | Crab Pulsar | Pulsar | Taurus | 05h 34m 31.95s | +22° 00′ 52.2″ | 1,900 |  | 10 | 0.0335028583 |  |
PSR B1509−58 |  | Pulsar | Circinus | 15h 13m 55.52s | −59° 08′ 08.8″ | 5,200 ±1,400 |  | 9.5 | 0.1502 |  |
PSR B0329+54 |  | Pulsar | Camelopardalis | 03h 32m 59.368s | +54° 34′ 43.57″ | 1,060 |  |  | 0.71452 |  |
PSR B0943+10 |  | Pulsar | Leo | 09h 46m 7.31s | +09° 51′ 57.3″ | 630 ±100 | 1.5 |  | 1.1 | 3,100,000 |
PSR B1257+12 | Lich | Pulsar | Virgo | 13h 00m 01s | +12° 40′ 57″ | 710 ±40 |  |  | 0.006219 |  | Host to the first-discovered extrasolar and pulsar planets
PSR B1620−26 |  | Pulsar | Scorpius | 16h 23m 38.2218s | −26° 31′ 53.769" | 3,800 | 1.35 | 20.85 |  | ≤ 30,000 | Binary with a white dwarf
PSR B1828−11 |  | Pulsar | Scutum | 18h 30m 47.75s | −10° 59′ 10.8″ | 3,200 |  |  |  |  |
PSR B1919+21 | Little Green Men | Pulsar | Vulpecula | 19h 21m 44.815s | +21° 53′ 02.25" | 100-1100 | 1.4 | 9.7398 | 1.3373 |  | First-discovered radio pulsar
PSR J0348+0432 |  | Pulsar | Taurus | 03h 48m 43.639s | +04° 32′ 11.458″ | 2,100 | 2.01 | 13 ±2 | 0.0391226569017806 |  | Binary with a white dwarf
PSR J0737−3039A |  | Double pulsar | Puppis | 07h 37m 51.248s | −30° 39′ 40.83″ | 1150 | 1.338 |  | 0.022699379740922 |  | First-known double pulsar
PSR J0737−3039B |  | Double pulsar | Puppis | 07h 37m 51.248s | −30° 39′ 40.83″ | 1150 | 1.249 |  | 2.7734613485 |  | First-known double pulsar
PSR J0740+6620 |  | Pulsar | Camelopardalis | 07h 40m 45.799s | +66° 20′ 33.60″ | 1,410 | 2.08 | 12.39 |  |  | Binary with a white dwarf
PSR J0952–0607 |  | Black Widow Pulsar | Sextans | 09h 52m 08.319s | −06° 07′ 23.49″ | 970, 1720, or 6260 | 2.35 |  | 0.00141379836 |  | Fastest spinning pulsar known within the Milky Way
PSR J1311–3430 |  | Pulsar | Centaurus | 13h 11m 45.724s | −34° 30′ 30.35″ |  | 2.7 |  | 0.0025 |  |
PSR J1614−2230 |  | Pulsar | Scorpius | 16h 14m 36.5051s | −22° 30′ 31.081″ | 1,200 | 1.908 | 13 ±2 | 0.0031508076534271 |  | Binary with a white dwarf
PSR J1719−1438 |  | Pulsar | Serpens | 17:19:10.0730(1) | −14:38:00.96(2) | 1,200 | 1.4 | 19 | 0.0058 |  |
PSR J1748-2021B |  | Pulsar | Virgo | 17h 48m 52.9522s | −20h 21m 38.90s | 223 | 2.548 |  |  |  |
PSR J1946+2052A |  | Pulsar | Vulpecula | 19h 46m 14.130s | +20° 52′ 24.64″ | 3500 - 4200 | <1.31 |  | 0.0169601753230 |  |
PSR J1946+2052A |  | Neutron star | Vulpecula | 19h 46m 14.130s | +20° 52′ 24.64″ | 3500 - 4200 | >1.18 |  |  |  |
PSR J2124−3358 |  | Pulsar | Microscopium | 21h 24m 43.8464s | −33° 58′ 44.961″ | 270 |  |  |  |  |
PSR J0835-4510 | Vela Pulsar | Pulsar | Vela | 08h 35m 20.65525s | −45° 10′ 35.1545″ | 294 |  |  | 0.08933 |  |
3XMM J004232.1+411314 |  | Low-mass x-ray binary pulsar | Andromeda | 00h 42m 32.072s | +41° 13' 14.33' |  | <3.0 |  | 3 |  | Most luminous known x-ray source with dips in its x-ray light curves
PSR J0337+1715 |  | Pulsar | Taurus | 03h 37m 43.82589s | +17° 15′ 14.8280″ | 4200 | 1.436 |  | 0.0027325886324400003 |  | Hierarchial system with two white dwarves and one candidate pulsar planet.

### Anomalous X-ray pulsars

* Anomalous X-ray pulsar (AXP)
* AXP 1E 1048-59
* AXP 1E2259+586
* AXP4U 0142+61
* AXP 1RXS 1708–40
* AXP 1E 1841–045
* AXP AXJ1844-0258
* AXP CXJ0110-7211
* Vela X-1
* 4U 0352+309
* Bursting Pulsar
* Vela Junior
* LMC N49

## Binary star systems

* Intermediate-mass X-ray binary
* High-mass X-ray binaries
* Centaurus X-3
* Circinus X-1
* GX 301-2
* Hercules X-1

## Related objects

* Kesteven 79
* PSR B1620−26 b
* 3C 58
* Cas X-1
* GW170817
* Cygnus Loop
* Spaghetti Nebula
* SN 1987A
* Jellyfish Nebula

## See also

* Stellar designations and names

## References

1. ↑ Heger, A.; Fryer, C. L.; Woosley, S. E.; Langer, N.; Hartmann, D. H. (2003). "How Massive Single Stars End Their Life". Astrophysical Journal 591 (1): 288–300. doi:10.1086/375341. Bibcode: 2003ApJ...591..288H.
2. ↑ 2.0 2.1 "Imagine the Universe!: Neutron Stars". 23 September 2023. https://imagine.gsfc.nasa.gov/science/objects/neutron_stars1.html.
3. ↑ Glendenning, Norman K. (2012). Compact Stars: Nuclear Physics, Particle Physics and General Relativity (illustrated ed.). Springer Science & Business Media. p. 1. ISBN 978-1-4684-0491-3. https://books.google.com/books?id=cCDlBwAAQBAJ&pg=PA1. Retrieved 2016-03-21.
4. ↑ Kazmierczak, Jeanette (12 December 2019). "NASA's NICER Delivers Best-ever Pulsar Measurements, 1st Surface Map". https://www.nasa.gov/universe/nasas-nicer-delivers-best-ever-pulsar-measurements-1st-surface-map/.

* v
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Neutron star

Types|

* Radio-quiet
* Pulsar

Single pulsars|

* Magnetar
* Soft gamma repeater
* Anomalous X-ray
* Rotating radio transient

Binary pulsars|

* Binary
* X-ray pulsar
* X-ray binary
* X-ray burster
* List
* Millisecond
* Be/X-ray
* Spin-up

Properties|

* Blitzar
* Fast radio burst
* Bondi accretion
* Chandrasekhar limit
* Gamma-ray burst
* Glitch
* Neutronium
* Neutron-star oscillation
* Optical
* Pulsar kick
* Quasi-periodic oscillation
* Relativistic
* Rp-process
* Starquake
* Timing noise
* Tolman–Oppenheimer–Volkoff limit
* Urca process

Related|

* Gamma-ray burst progenitors
* Astroseismology
* Compact star
* Quark star
* Exotic star
* Supernova
* Supernova remnant
* Related links
* Hypernova
* Kilonova
* Neutron star merger
* Quark-nova
* White dwarf
* Related links
* Stellar black hole
* Related links
* Radio star
* Pulsar planet
* Pulsar wind nebula
* Thorne–Żytkow object

Discovery|

* LGM-1
* Centaurus X-3
* Timeline of white dwarfs, neutron stars, and supernovae

Satellite
investigation|

* Rossi X-ray Timing Explorer
* Fermi Gamma-ray Space Telescope
* Compton Gamma Ray Observatory
* Chandra X-ray Observatory

Other|

* X-ray pulsar-based navigation
* Tempo software program
* Astropulse
* The Magnificent Seven

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