ESPaDOnS
E435729
ESPaDOnS is a high-resolution optical spectropolarimeter used for detailed studies of stellar magnetic fields and related astrophysical phenomena.
All labels observed (3)
| Label | Occurrences |
|---|---|
| ESPaDOnS canonical | 2 |
| ESPaDOnS CCD detector | 1 |
| ESPaDOnS spectropolarimeter | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4378606 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ESPaDOnS Context triple: [Canada–France–Hawaii Telescope, hasInstrument, ESPaDOnS]
-
A.
HARPS spectrograph
The HARPS spectrograph is a high-precision, fiber-fed echelle spectrograph designed primarily for detecting exoplanets via radial velocity measurements.
-
B.
X-shooter
X-shooter is a high-efficiency, medium-resolution spectrograph on the Very Large Telescope that simultaneously covers a very wide wavelength range from the ultraviolet to the near-infrared.
-
C.
FEROS spectrograph
The FEROS spectrograph is a high-resolution, fiber-fed echelle spectrograph used in optical astronomy for precise stellar spectroscopy and radial velocity measurements.
-
D.
Magellan Echellette Spectrograph (MagE)
Magellan Echellette Spectrograph (MagE) is a medium-resolution optical echellette spectrograph designed for wide wavelength coverage and efficient spectroscopy of faint astronomical sources.
-
E.
GNIRS (Gemini Near-Infrared Spectrograph)
GNIRS (Gemini Near-Infrared Spectrograph) is a high-resolution near-infrared spectrograph used on the Gemini North telescope to study the composition, kinematics, and physical conditions of astronomical objects.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ESPaDOnS Target entity description: ESPaDOnS is a high-resolution optical spectropolarimeter used for detailed studies of stellar magnetic fields and related astrophysical phenomena.
-
A.
HARPS spectrograph
The HARPS spectrograph is a high-precision, fiber-fed echelle spectrograph designed primarily for detecting exoplanets via radial velocity measurements.
-
B.
X-shooter
X-shooter is a high-efficiency, medium-resolution spectrograph on the Very Large Telescope that simultaneously covers a very wide wavelength range from the ultraviolet to the near-infrared.
-
C.
FEROS spectrograph
The FEROS spectrograph is a high-resolution, fiber-fed echelle spectrograph used in optical astronomy for precise stellar spectroscopy and radial velocity measurements.
-
D.
Magellan Echellette Spectrograph (MagE)
Magellan Echellette Spectrograph (MagE) is a medium-resolution optical echellette spectrograph designed for wide wavelength coverage and efficient spectroscopy of faint astronomical sources.
-
E.
GNIRS (Gemini Near-Infrared Spectrograph)
GNIRS (Gemini Near-Infrared Spectrograph) is a high-resolution near-infrared spectrograph used on the Gemini North telescope to study the composition, kinematics, and physical conditions of astronomical objects.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical instrument
ⓘ
high-resolution optical spectropolarimeter ⓘ |
| acronymFor | Echelle SpectroPolarimetric Device for the Observation of Stars NERFINISHED ⓘ |
| associatedSurvey |
BinaMIcS
NERFINISHED
ⓘ
CFHT Large Programs on stellar magnetism NERFINISHED ⓘ Magnetism in Massive Stars (MiMeS) NERFINISHED ⓘ Toupies NERFINISHED ⓘ |
| commissioned | mid-2000s ⓘ |
| dataPipeline |
Libre-ESpRIT
NERFINISHED
ⓘ
UPENA NERFINISHED ⓘ |
| fullName | Echelle SpectroPolarimetric Device for the Observation of Stars NERFINISHED ⓘ |
| hasMode |
object-only mode
ⓘ
polarimetric mode ⓘ spectropolarimetry mode ⓘ spectroscopy mode ⓘ star+sky mode ⓘ |
| installedOn | Canada-France-Hawaii Telescope 3.6 m telescope NERFINISHED ⓘ |
| locatedAt | Canada-France-Hawaii Telescope NERFINISHED ⓘ |
| locatedIn |
Hawaii
NERFINISHED
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedOn | Maunakea NERFINISHED ⓘ |
| measures |
Stokes I
NERFINISHED
ⓘ
Stokes Q ⓘ Stokes U ⓘ Stokes V ⓘ |
| observes |
exoplanet host stars
ⓘ
massive stars ⓘ pre-main-sequence stars ⓘ solar-type stars ⓘ stars ⓘ stellar magnetic fields ⓘ white dwarfs ⓘ |
| operatedBy | Canada-France-Hawaii Telescope Corporation NERFINISHED ⓘ |
| primaryUse |
high-resolution optical spectroscopy
ⓘ
stellar spectropolarimetry ⓘ study of stellar magnetic fields ⓘ |
| resolvingPower | up to about 65,000 ⓘ |
| scienceGoal |
characterizing magnetic activity cycles
ⓘ
mapping stellar magnetic field topologies ⓘ measuring Zeeman effect in stellar spectra ⓘ studying magnetospheric accretion in young stars ⓘ supporting exoplanet searches via radial velocities ⓘ |
| similarTo | NARVAL spectropolarimeter at TBL Pic du Midi NERFINISHED ⓘ |
| spectralCoverage | approximately 370 nm to 1050 nm ⓘ |
| spectralRange | optical ⓘ |
| uses |
cross-dispersed echelle spectrograph
ⓘ
fiber-fed design ⓘ polarimetric module at Cassegrain focus ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ESPaDOnS Description of subject: ESPaDOnS is a high-resolution optical spectropolarimeter used for detailed studies of stellar magnetic fields and related astrophysical phenomena.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
GRACES
subject surface form:
GRACES
this entity surface form:
ESPaDOnS spectropolarimeter
subject surface form:
GRACES
this entity surface form:
ESPaDOnS CCD detector