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Faint neutron star at the center of a supernova remnant
A central compact object (CCO) is an x-ray source found near the center of a young, nearby supernova remnant (SNR). Given the x-ray flux and spectra of
Central_compact_object
Classification in astronomy
In astronomy, the term compact object (or compact star) refers collectively to white dwarfs, neutron stars, and black holes. It could also include exotic
Compact_object
Supernova remnant
X-ray emission indicative of particle acceleration and contains a central compact object. HESS J1731−347 is well studied for cosmic ray production in young
HESS_J1731−347
Change in luminosity of a moving object due to special relativity
jets of plasma that originate from a central compact object that is accreting matter. Accreting compact objects with relativistic jets explain phenomena
Relativistic_beaming
Topics referred to by the same term
the Canadian College of Organists) Canadian Computing Olympiad Central compact object Combined cardiac output Constitutive role of communication in organizations
CCO
Star in the constellation Norma
years away in the constellation Norma. Although once considered a central compact object, the observed bursts have caused it to be reclassified as either
1E_161348−5055
Central compact object in the constellation Centaurus
1E 1207.4-5209 (nicknamed as Blue Eye Pulsar) is a pulsar and a central compact object (CCO) located in the supernova remnant PKS 1209−51/52. It is about
1E_1207.4-5209
Relatively young and nearby supernova remnant
than 500 parsecs, and a radial size of at least 8 parsecs. The central compact object (CCO) was discovered in 2001. In the initial Chandra X-ray image
RX_J0852.0−4622
Neutron star that does not emit radio waves
J214303.7+065419/RBS 1774 Compact Central Objects in Supernova remnants (CCOs in SNRs) are identified as being radio-quiet compact X-ray sources surrounded
Radio-quiet_neutron_star
Alternative model for black holes
supporting the existence of an intrinsic magnetic moment inside the central compact object within the Quasar Q0957+561". Astronomical Journal. 132 (1): 420–32
Magnetospheric eternally collapsing object
Magnetospheric_eternally_collapsing_object
Supernova remnant
that the nearby thermal X-ray source, XMMU J172054.5-372652, is a central compact object of the supernova. G350.1-0.3 is eight light years across and about
G350.1-0.3
American astrophysicist (born 1940)
Supporting the Existence of an Intrinsic Magnetic Moment inside the Central Compact Object within the Quasar Q0957+56". The Astronomical Journal. 132 (1):
Rudolph_Schild
Collapsed core of a massive star
This seems to be a characteristic of the X-ray sources known as Central Compact Objects in supernova remnants (CCOs in SNRs), which are thought to be young
Neutron_star
Supernova remnant in the constellation Cassiopeia
1999, the Chandra X-Ray Observatory found CXOU J232327.8+584842, a central compact object that is the neutron star remnant left by the explosion. In 2005
Cassiopeia_A
Radio pulsar in the constellation Vela
0−4622. However, this association is considered unlikely since a central compact object with better matching kinematics to the shell has been observed.
PSR_J0855−4644
and/or discoveries are recorded on a grey background. Angular diameter Compact object Historical brightest stars List of brightest stars Lists of constellations
List_of_star_extremes
Hypothetical maximally compact horizonless object
a hypothetical compact object whose boundary lies at the smallest radius permitted by Buchdahl's theorem, making it the most compact static configuration
Buchdahl_star
Hypothetical compact astrophysical object
event horizon, forming a compact shell of ultra-high density. Being of neutron star size (~11km), this hypothetical object strongly deflects light rays
Shell_collapsar
Supermassive black hole at the center of the Milky Way
emission from the center of the galaxy appeared to be due to a compact non-thermal radio object embedded in a larger, and much brighter, radio source, Sagittarius A
Sagittarius_A*
likely to be found in the centers of galaxies, where stellar mass compact objects, such as stellar black holes and neutron stars, may be found orbiting
Extreme_mass_ratio_inspiral
Compact astronomical body
traps an object inside but produces no locally detectable change. General relativity also predicts that every black hole should have a central singularity
Black_hole
Orbits CCO – (celestial object) central compact object, a compact star in the center of a planetary nebula CCS – (celestial object) cool carbon star CCSNe
List_of_astronomy_acronyms
Star fragment in the constellation Puppis
Winkler, P. Frank; Petre, Robert (2012). "The Proper Motion of the Central Compact Object Rx J0822–4300 in the Supernova Remnant Puppis A". The Astrophysical
RX_J0822−4300
Natural physical entity in space
An astronomical object, celestial object, stellar object or heavenly object is a naturally occurring physical entity, association, or structure that exists
Astronomical_object
Group of isolated cooling neutron stars
repeaters, anomalous X-ray pulsars, rotating radio transients, and central compact objects in supernova remnants. Some of them can be related to the Magnificent
The Magnificent Seven (neutron stars)
The_Magnificent_Seven_(neutron_stars)
Volunteer computing project
(2020-06-29). "Search for Continuous Gravitational Waves from the Central Compact Objects in Supernova Remnants Cassiopeia A, Vela Jr., and G347.3–0.5".
Einstein@Home
Italian astrophysicist
Astronomy (CSIC Press Release) "Magnetar-like activity from the Central Compact Object in the SNR RCW103" – Rea N., Borghese A., Esposito P., et al. 2016
Nanda_Rea
Hypothetical early-universe star with a black hole core
material falling into a black hole at its core. The formation of such an object would have resulted from the core of a large supermassive protostar collapsing
Quasi-star
Planetary nebula in Lyra
fusion and, in evolutionary terms, it is now becoming a compact white dwarf star. The central star now consists primarily of carbon and oxygen with a
Ring_Nebula
Dwarf elliptical galaxy in the constellation Andromeda
into a compact elliptical. As a small disk galaxy falls into the central parts of M31, much of its outer layers will be stripped away. The central bulge
Messier_32
Galaxy filament
Peculiar Ring Polar Structure Active galactic nucleus Bar Bulge Central massive object Galactic Center Dark matter halo Disc Disc galaxy Halo corona Galactic
Coma_Filament
Infrared emitting object in the constellation Orion
The Becklin–Neugebauer Object (BN) is an object visible only in the infrared in the Orion molecular cloud 1 (OMC1). It was discovered in 1967 by Eric Becklin
Becklin–Neugebauer_Object
Structure formed by diffuse material in orbital motion around a massive central body
established that a weakly magnetized disk accreting around a heavy, compact central object would be highly unstable, providing a direct mechanism for angular-momentum
Accretion_disk
1678 Nova seen in the constellation Vulpecula
an object whose exact nature is unknown. It was once considered to be the oldest reliably-documented nova. It consists of a compact central object surrounded
CK_Vulpeculae
Magnetar located near the black hole Sagittarius A*
The magnetar, which is also a pulsar, is 0.33 ly from the central black hole. The object helps researchers probe the ionized interstellar medium (ISM)
SGR_J1745−2900
Stars that appear green
Rayleigh–Jeans tail at red wavelengths. It was identified as a green-hued object in the same study that reported the more vividly green WD J1330+6435. WD
Green_star_(astronomy)
Stellar cluster in the Large Magellanic Cloud
It was discovered by John Herschel on November 3, 1834. The central cluster is compact and contains several O- and B-type stars that ionize the surrounding
NGC_1914
Group homomorphism into the general linear group over a vector space
defined. This can be done for locally compact groups, using the Haar measure. The resulting theory is a central part of harmonic analysis. The Pontryagin
Group_representation
Accumulation of particles into a massive object by gravitationally attracting more matter
In astrophysics, accretion is the accumulation of matter into a massive object by gravitationally attracting more matter. If the matter is gaseous the
Accretion_(astrophysics)
Astronomical object without the mass to sustain hydrogen fusion
with decreasing mass until, at the mass of Jupiter, a substellar object has a central density less than 10 g/cm3. The density decrease balances the mass
Substellar_object
Aggregation of galaxies with 50 or fewer members
formations. The first compact group to be discovered was Stephan's Quintet, found in 1877. Stephan's Quintet is named for a compact group of four galaxies
Galaxy_group
American theoretical astrophysicist
Columbia University. His research focuses on high-energy astrophysics, compact-object mergers, gravitational-wave sources, and electromagnetic transients
Brian_D._Metzger
Active galactic nucleus (AGN) containing a supermassive black hole
active galactic nucleus (AGN). It is sometimes known as a quasi-stellar object, abbreviated QSO. The emission from an AGN is powered by accretion onto
Quasar
Seyfert galaxy in the constellation of Pegasus
1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331. "NED results for object MRK 0335". NASA/IPAC Extragalactic Database. National Aeronautics and Space
Markarian_335
Diffuse nebula in the constellation Orion
Zheng; Hu, Xihai (June 1993). "Discovery of New Objects in the Orion Nebula on HST Images: Shocks, Compact Sources, and Protoplanetary Disks". Astrophysical
Orion_Nebula
Galaxy filament containing the Perseus-Pisces Supercluster
Peculiar Ring Polar Structure Active galactic nucleus Bar Bulge Central massive object Galactic Center Dark matter halo Disc Disc galaxy Halo corona Galactic
Perseus–Pegasus_Filament
Grouping of stars by similar metallicity
have ejected all material that did not fall back into the resulting compact object, so it is suspected that the elements formed in lower energy supernovae
Stellar_population
Radio galaxy in the constellation of Cassiopeia
elliptical galaxy. It is described as an example of a prototype compact symmetrical object with a radio luminosity of 4.8 × 1043 h−2 erg s−1. It is a Gigahertz
IERS_B2352+495
Microquasar
the brightest X-ray sources in the region around the Galactic Center. The object was first detected in soft X-rays by the Einstein Observatory, and later
Great_Annihilator
Differentiable manifold
G=Z/(Z\cap \Gamma )} is a p-dimensional compact torus. Since Z is central in N, the group G acts on the compact nilmanifold P = N / Γ {\displaystyle P=N/\Gamma
Nilmanifold
Stellar-mass black hole in the constellation Sagittarius
X-ray nova. The pattern of X-rays from the nova indicated that the central object was a black hole. Its name arises from the coordinates of its sky position
SWIFT_J1745−26
Rotational center of the Milky Way galaxy
central massive object is a supermassive black hole of about 4 million solar masses, which is called Sagittarius A*, part of which is a very compact radio
Galactic_Center
Radio galaxy in the constellation Virgo
galaxy is found to be compact based on high resolution imaging made with MERLIN, comprising at least three components; mainly a central radio core and two
TXS_1321+045
Papuan language of Papua New Guinea
proto-Trans-New Guinea Apalɨ *maŋgV ‘compact round object’ maŋgɨ ‘egg’ *mapVn ‘liver’ mapɨn *maŋgat[a] ‘teeth, mouth’ mɨka *mVkVm ‘jaw’ mukum *(m,mb)elak
Apali_language
Hypothesized alternative to a black hole
astrophysics, a gravastar (a blend word of "gravitational vacuum star") is an object hypothesized in a 2001 paper by Pawel O. Mazur and Emil Mottola as an alternative
Gravastar
Type of luminous supergiant star
Quentin A.; Bojičič, Ivan S. (2016). "Improving the distances of post-AGB objects in the Milky Way". Journal of Physics: Conference Series. 728 (7) 072013
Post-AGB_star
Seyfert 2 galaxy and quasar in the constellation Coma Berenices
it with a galaxy counterpart in 1974. This object has also been classified as a compact symmetrical object (CSO) in literature. PKS 1155+251 is described
PKS_1155+251
Mathematical concept
of this concept is to provide a notion of dual object for any locally compact group. This dual object is suitable for formulating a Fourier transform
Spectrum_of_a_C*-algebra
Galaxy in the constellation Virgo
The Sombrero Galaxy (also known as Messier Object 104, M104 or NGC 4594) is a peculiar galaxy of unclear classification in the constellation borders of
Sombrero_Galaxy
Galaxy in the constellation Coma Berenices
IC 3050. NGC 4189 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy
NGC_4189
Galaxy in the constellation Virgo
an "M". Thus, M87 was the eighty-seventh object listed in Messier's catalogue. During the 1880s, the object was included as NGC 4486 in the New General
Messier_87
Type of emission nebula created by dying red giants
Köppen, J. (May 2011), "PHR 1315–6555: A bipolar planetary nebula in the compact Hyades-age open cluster ESO 96-SC04", Monthly Notices of the Royal Astronomical
Planetary_nebula
Poorly understood class of astronomical objects
astronomy Little red dots (LRDs) are a class of small, red-tinted astronomical objects with unexpected characteristics observed using the James Webb Space Telescope
Little_Red_Dots
Elliptical galaxy in the constellation Virgo
ultra compact dwarf galaxy M59-UCD3 and M59cO, which is a rare example of a galaxy in between compact ellipticals such as Messier 32 and ultra compact dwarfs
Messier_59
Galaxy filament
Peculiar Ring Polar Structure Active galactic nucleus Bar Bulge Central massive object Galactic Center Dark matter halo Disc Disc galaxy Halo corona Galactic
Lynx–Ursa_Major_Filament
Central region of the Sun
Boötis Lead Technetium Be Shell B[e] Helium Extreme Blue straggler Remnants Compact star White dwarf Helium planet Neutron Radio-quiet Pulsar Binary X-ray
Solar_core
Concept in political philosophy
of Heaven – Political doctrine of divine legitimacy in China Mayflower Compact – First governing document of Plymouth Colony Monarchomachs – French Huguenot
Social_contract
Concept in astronomy
companion star, the two objects' strong mutual gravitational attraction could plausibly cause the dwarf to migrate inwards towards the central star and eventually
Brown_dwarf_desert
Transforming a function in such a way that it only takes a single argument
eval:YX×X→Y(f,x)↦f(x) is continuous when YX is compact-open and Y locally compact Hausdorff. These two results are central for establishing the continuity of homotopy
Currying
Largest type of black hole
massive compact object would explain the properties of quasars. It would require a mass of around 108 M☉ to match the output of these objects. Donald
Supermassive_black_hole
Complex type of orbit
from a massive gravitational source. In barred spiral galaxies with a compact, lens-shaped bar (in contrast with a box-shaped bar), the morphology of
Rosetta_orbit
Massive galaxy in the constellation Boötes
direct collapse black holes or primordial black holes. The object itself is an extremely compact system. The high density of stars and gas within a small
EGS-z11-R0
Theorem in general relativity
provide a viable alternative it is sometimes needed that the object should be extremely compact and in particular violate the Buchdahl inequality. This implies
Buchdahl's_theorem
American astronomer (born 1965)
Reinhard Genzel "for the discovery of a supermassive compact object at the centre of our galaxy". This object is generally recognized to be a black hole. Her
Andrea_M._Ghez
Kuiper belt object
Thule) is a small, icy Kuiper belt object orbiting the Sun beyond Neptune and Pluto. It became the farthest object in the Solar System visited by a spacecraft
486958_Arrokoth
Barred spiral galaxy in the Local Group
named 3XMM J004232.1+411314, and identified as a binary system where a compact object (a neutron star or a black hole) accretes matter from a star. Multiple
Andromeda_Galaxy
Pact between a person and the Devil or another demon
teacher who was declared a notorious sorcerer. He confessed to having a compact with Satan during the North Berwick witch trials in Scotland, which he
Deal_with_the_Devil
Visual grouping of five galaxies
known as the Hickson Compact Group 92. It was the first compact galaxy group to be discovered and one of the most heavily studied compact galaxy groups. The
Stephan's_Quintet
central massive object (CMO) Any very large concentration of mass at the center of a galaxy, typically either a supermassive black hole or a compact stellar
Glossary_of_astronomy
Generalization of Lie groups
central fact about representations of finite groups. They admit a generalization to the case of compact groups in general, and in particular compact Lie
Schur_orthogonality_relations
Galaxy in the constellation Ursa Major
Astronomy Fujimoto, S.; Brammer, G.B.; Watson, D. (14 April 2022), "A dusty compact object bridging galaxies and quasars at cosmic dawn." (PDF), Nature, 604 (604):
GNz7q
Galaxy filament
Peculiar Ring Polar Structure Active galactic nucleus Bar Bulge Central massive object Galactic Center Dark matter halo Disc Disc galaxy Halo corona Galactic
Ursa_Major_Filament
Globular cluster in Scorpius
for an intermediate-mass black hole (even if an unusually compact cluster of compact objects like white dwarfs, neutron stars or stellar-mass black holes
Messier_4
Branch of mathematics
the branch of mathematics concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting
Topology
Spiral galaxy in the constellation Camelopardalis
E.; Alatalo, K.; Cluver, M. (2014). "Herschel observations of Hickson compact groups of galaxies: Unveiling the properties of cold dust". Astronomy &
IC_342
Barred Spiral or Lenticular galaxy in the constellation Ursa Major
Ursa Major Cluster. South of NGC 3718 the Hickson Compact Group #56 is located. HCG 56 is a compact group of galaxies of which 4 members are interacting
NGC_3718
Type of starburst galaxy
'Luminous Compact Galaxies' but did not refer to them by name, stating that blue, purple and green Pea galaxies were the same type of object at distances
Blueberry_galaxy
Largest dwarf planet in the Solar System
ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume by a small margin, but is
Pluto
Concept in number theory
{A} _{K}^{\times }/K^{\times }} , called the idele class group, is a central object in class field theory. Adeles and ideles are also used in Tate's thesis
Adele_ring
Compact region at a galaxy's center with abnormally high luminosity
An active galactic nucleus (AGN) is a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum
Active_galactic_nucleus
Star cluster in the center of a galaxy
of mass of many galaxies, including the Milky Way. NSCs are the central massive objects of fainter, low-mass galaxies where supermassive black holes (SMBHs)
Nuclear_star_cluster
Physics property associated with symmetries
C) has a compact real form su(2) (in fact, all Lie algebras have a unique compact real form). The same decomposition holds for the compact form as well:
Charge_(physics)
Geometrical property
an object has symmetry if there is an operation or transformation (such as translation, scaling, rotation or reflection) that maps the figure/object onto
Symmetry_(geometry)
Type of neutron star with beams of radiation
a series of pulses, evenly spaced every 1.337 seconds. No astronomical object of this nature had ever been observed before. On December 21, Bell discovered
Pulsar
Region of gravitational attraction in the local universe
The term does not refer to a single galaxy, galaxy cluster, or compact astronomical object. Instead, it describes a broad concentration of matter and an
Great_Attractor
Galaxy in the constellation Draco
disrupted spiral galaxies of its sort. It is hypothesized that a more compact intruder galaxy crossed in front of the Tadpole Galaxy—from left to right
Tadpole_Galaxy
Concept in topology
topological space X to a compact Hausdorff space βX. The Stone–Čech compactification βX is the unique "most general" compact Hausdorff space generated
Stone–Čech_compactification
Galaxy in the constellation Pegasus
General Catalogue Objects: NGC 7549". Celestial Atlas. Retrieved 25 August 2025. Hickson, Paul (1982). "Systematic properties of compact groups of galaxies"
NGC_7549
H II region in the constellation Dorado
Doradus has at its centre the star cluster NGC 2070 which includes the compact concentration of stars known as R136 that produces most of the energy that
Tarantula_Nebula
Globular cluster in the constellation Columba
PMC 6859652, PMID 31762495. Ewan D. Barr et al. A pulsar in a binary with a compact object in the mass gap between neutron stars and black holes. Science 2024;
NGC_1851
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