Statements (275)
| Predicate | Object |
|---|---|
| gptkbp:instance_of |
gptkb:medical_imaging
gptkb:supermassive_black_hole gptkb:star |
| gptkbp:accretion_mechanism |
accretion mechanism studied
|
| gptkbp:accretion_rate |
high
high accretion rate |
| gptkbp:advances |
driven by its study
|
| gptkbp:associated_with |
gptkb:supernova_remnants
X-ray binary systems |
| gptkbp:average_temperature |
about 30,000 K
|
| gptkbp:black_hole_candidate |
first confirmed black hole candidate
|
| gptkbp:black_hole_formation |
supernova explosion
related to black hole formation theories |
| gptkbp:black_hole_spin |
high
high spin rate |
| gptkbp:black_hole_type |
gptkb:stellar_black_hole
|
| gptkbp:collaboration |
international collaboration in studies
|
| gptkbp:collaborations |
international
|
| gptkbp:collection |
data collected from various observatories
|
| gptkbp:community |
important to the scientific community
|
| gptkbp:conducts_research_on |
in high-energy astrophysics
|
| gptkbp:contains |
gptkb:supermassive_black_hole
|
| gptkbp:contains_star |
gptkb:HDE_226868
|
| gptkbp:contributes_to |
the understanding of black hole formation
|
| gptkbp:cultural_references |
referenced in popular culture
|
| gptkbp:discovered_by |
gptkb:Tom_Bolton
gptkb:William_C._Mc_Donald |
| gptkbp:discovery_year |
gptkb:1964
|
| gptkbp:distance_from_earth |
about 6,070 light years
about 6,100 light years about 6,000 light years |
| gptkbp:educational_value |
high
|
| gptkbp:element |
the study of black holes
|
| gptkbp:emissions_standard |
yes
detected |
| gptkbp:event_horizon |
theoretical presence
|
| gptkbp:evidence_for |
gptkb:general_relativity
|
| gptkbp:featured_in |
popular science literature
|
| gptkbp:file_system |
present
yes surrounding the black hole |
| gptkbp:first_black_hole |
to be widely accepted
|
| gptkbp:first_black_hole_candidate |
gptkb:true
|
| gptkbp:first_x-ray_binary |
gptkb:true
|
| gptkbp:first_xray_source |
identified as a black hole
|
| gptkbp:funding |
funding for research projects
|
| gptkbp:future_prospects |
subject of future research projects
|
| gptkbp:gravitational_wave_source |
potential source
|
| gptkbp:has_accretion_rate |
high
|
| gptkbp:has_black_hole_candidate |
yes
|
| gptkbp:has_black_hole_mass |
greater than 10 solar masses
between 8 and 20 solar masses |
| gptkbp:has_black_hole_spin |
high spin rate
|
| gptkbp:has_companion_mass |
about 20 solar masses
|
| gptkbp:has_cultural_impact |
yes
|
| gptkbp:has_fictional_representations |
yes
|
| gptkbp:has_field |
strong
|
| gptkbp:has_film |
yes
|
| gptkbp:has_future_research_potential |
yes
|
| gptkbp:has_gravitational_waves |
no
|
| gptkbp:has_hawking_radiation |
theoretical
|
| gptkbp:has_high_energy_emission |
in the X-ray spectrum
|
| gptkbp:has_implications_for |
theoretical implications for astrophysics
|
| gptkbp:has_influence_on_science_fiction |
yes
|
| gptkbp:has_influenced |
theoretical models of black holes
|
| gptkbp:has_luminosity |
gptkb:Giant
about 1.2 million times that of the Sun about 50,000 times that of the Sun related to stellar evolution theories about 1.5 million times that of the Sun |
| gptkbp:has_mass_loss_rate |
high
|
| gptkbp:has_mass_transfer |
yes
|
| gptkbp:has_observational_challenges |
yes
|
| gptkbp:has_optical_counterpart |
yes
|
| gptkbp:has_publications |
numerous
|
| gptkbp:has_publications_in_astronomy |
many
|
| gptkbp:has_spectral_type |
O-type star
O9.7 Iab |
| gptkbp:has_supernova |
no
yes |
| gptkbp:has_variations |
yes
seconds to hours in X-ray brightness |
| gptkbp:has_xray_binaries |
yes
|
| gptkbp:has_xray_spectra |
hard X-ray spectra
characteristic of black holes |
| https://www.w3.org/2000/01/rdf-schema#label |
Cygnus X-1
|
| gptkbp:impact |
black hole physics
|
| gptkbp:inspiral_rate |
high
|
| gptkbp:is_a |
gptkb:medical_imaging
gptkb:supermassive_black_hole gptkb:star stellar-mass black hole key object in astrophysical research |
| gptkbp:is_a_subject_of |
many scientific papers
|
| gptkbp:is_associated_with |
gamma-ray emissions
the study of accretion processes the Cygnus constellation the Cygnus X-1 system the concept of event horizon the myth of the swan in various cultures the black hole information paradox |
| gptkbp:is_cited_in |
astrophysical research
|
| gptkbp:is_considered |
the context of black hole formation theories
theories of general relativity one of the strongest X-ray sources a benchmark for black hole mass measurements a prime candidate for black hole studies a prime black hole candidate |
| gptkbp:is_considered_as |
a prototype for black hole candidates
a strong candidate for a stellar-mass black hole a prototype for black hole studies |
| gptkbp:is_considered_to_be |
one of the best-studied black holes
one of the best-studied black holes. |
| gptkbp:is_featured_in |
numerous scientific papers
documentaries about space |
| gptkbp:is_in |
gptkb:the_Milky_Way_galaxy
|
| gptkbp:is_involved_in |
the search for gravitational waves
the study of gravitational waves. |
| gptkbp:is_known_for |
its strong X-ray emissions
its contribution to the understanding of black holes. its strong gravitational pull its variability in X-ray brightness its role in the understanding of black holes. |
| gptkbp:is_located_at |
declination +35° 12' 32"
right ascension 19h 58m 21s declination +35° 42' 22'' right ascension 19h 58m 21.3s |
| gptkbp:is_located_in |
the northern celestial hemisphere
in the northern hemisphere |
| gptkbp:is_mentioned_in |
popular science literature
|
| gptkbp:is_monitored_by |
various observatories
|
| gptkbp:is_observed_in |
gptkb:RXTE
gptkb:Chandra_X-ray_Observatory gptkb:XMM-Newton gptkb:Hubble_Space_Telescope the 1960s multiple wavelengths in multiple wavelengths |
| gptkbp:is_often_compared_to |
other black holes
|
| gptkbp:is_one_of |
the first X-ray sources identified
the strongest X-ray sources the first black holes identified |
| gptkbp:is_part_of |
gptkb:Cygnus_constellation
gptkb:the_Milky_Way_galaxy gptkb:Milky_Way the study of high-energy astrophysics the field of gravitational wave astronomy the Cygnus constellation the Cygnus X-1 system the Cygnus X-ray binary family the X-ray binary class the broader category of compact objects the Cygnus constellation's mythology the broader study of high-energy astrophysics the Cygnus X-ray binary system the broader category of black holes |
| gptkbp:is_related_to |
stellar evolution
|
| gptkbp:is_significant_for |
the study of stellar evolution
|
| gptkbp:is_studied_for |
stellar evolution
its gravitational effects its role in the evolution of galaxies the behavior of matter under extreme gravity its accretion processes |
| gptkbp:is_studied_in |
astrophysics
for decades numerous astronomers |
| gptkbp:is_used_for |
a benchmark for black hole mass measurements
|
| gptkbp:is_used_in |
tests of general relativity
tests of black hole theories |
| gptkbp:is_visible_from |
gptkb:Earth
Earth with binoculars |
| gptkbp:lighting |
yes
variable notable observed strong detected variable light curve observed due to accretion of matter gamma-ray emission detected X-ray variability observed over time |
| gptkbp:located_in |
gptkb:Cygnus_constellation
constellation Cygnus |
| gptkbp:losses |
gptkb:significant
significant mass loss from companion star |
| gptkbp:mass |
greater than 10 solar masses
approximately 14.8 solar masses approximately 15 solar masses 15 solar masses estimated black hole mass estimated from dynamics |
| gptkbp:max_speed |
strong
|
| gptkbp:media_coverage |
extensive
|
| gptkbp:migration |
occurs
occurs from companion star from companion star to black hole |
| gptkbp:model |
used in theoretical models of black holes
|
| gptkbp:named_after |
the constellation Cygnus
|
| gptkbp:neutron_star_companion |
not a neutron star companion
|
| gptkbp:notable_for |
its high mass and proximity
|
| gptkbp:notable_pilots |
yes
|
| gptkbp:observational_evidence |
strong observational evidence for black holes
for black hole existence |
| gptkbp:orbital_inclination |
about 27 degrees
|
| gptkbp:orbital_period |
5.6 days
|
| gptkbp:part_of |
gptkb:the_Milky_Way_galaxy
the Cygnus constellation Galactic Center region |
| gptkbp:public_interest |
high
high public interest in black holes |
| gptkbp:publications |
numerous scientific publications exist
|
| gptkbp:radio_wavelengths |
emission detected at radio wavelengths
|
| gptkbp:research |
subject of many observational studies
|
| gptkbp:research_importance |
yes
important for understanding stellar black holes |
| gptkbp:roll_rate |
high spin rate
rapidly spinning |
| gptkbp:significance |
stellar evolution studies
black hole research important for black hole research one of the strongest black hole candidates |
| gptkbp:stellar_mass_black_hole |
type of stellar mass black hole
|
| gptkbp:stellar_mass_range |
within stellar mass range for black holes
|
| gptkbp:system |
yes
|
| gptkbp:targets |
observational campaigns
|
| gptkbp:type |
gptkb:medical_imaging
gptkb:supermassive_black_hole gptkb:stellar_black_hole stellar-mass black hole |
| gptkbp:was_akey_figure_in |
stellar mass black holes
|
| gptkbp:was_first_identified |
as a black hole candidate in 1971
|
| gptkbp:was_first_identified_as |
a black hole candidate
|
| gptkbp:x-ray_binaries |
one of the best-studied X-ray binaries
one of the best-studied |
| gptkbp:x-ray_binaries_type |
persistent
|
| gptkbp:x-ray_binary |
gptkb:true
|
| gptkbp:x-ray_binary_classification |
well-defined
|
| gptkbp:x-ray_binary_dynamics |
complex interactions observed
|
| gptkbp:x-ray_binary_evolution |
studied in detail
|
| gptkbp:x-ray_binary_formation |
related to massive stars
|
| gptkbp:x-ray_binary_properties |
varied and complex
|
| gptkbp:x-ray_binary_research |
important for understanding black holes
|
| gptkbp:x-ray_binary_studies |
contribute to astrophysics knowledge
|
| gptkbp:x-ray_emission_mechanism |
thermal and non-thermal
accretion onto black hole |
| gptkbp:x-ray_emission_properties |
studied extensively
|
| gptkbp:x-ray_flare |
observed
|
| gptkbp:x-ray_flare_duration |
short
|
| gptkbp:x-ray_intensity |
high
|
| gptkbp:x-ray_observations |
critical for astrophysics
|
| gptkbp:x-ray_outbursts |
frequent
|
| gptkbp:x-ray_pulsations |
not detected
no X-ray pulsations detected |
| gptkbp:x-ray_source |
strong X-ray source
strong and variable |
| gptkbp:x-ray_source_type |
persistent source
|
| gptkbp:x-ray_spectra |
hard
characteristic X-ray spectra observed |
| gptkbp:x-ray_spectral_analysis |
important for understanding
|
| gptkbp:x-ray_spectral_features |
analyzed for research
|
| gptkbp:x-ray_spectral_states |
different states observed
|
| gptkbp:x-ray_spectral_variability |
notable
|
| gptkbp:x-ray_spectroscopy |
used for study
|
| gptkbp:x-ray_timing |
important for research
|
| gptkbp:x-ray_variability_timescale |
short timescales
|
| gptkbp:bfsParent |
gptkb:Star_Trek_V:_The_Final_Frontier
gptkb:Cygnus gptkb:Farewell_to_Kings_Tour gptkb:Hemispheres_Tour gptkb:Moving_Pictures_Tour gptkb:R40_Live gptkb:Power_Windows_Tour_1985 gptkb:Presto_Tour_1989 |
| gptkbp:bfsLayer |
5
|