Doppler spectroscopy
E176982
Doppler spectroscopy is a technique that measures frequency shifts in light or other waves to determine the velocity and motion of astronomical objects or particles relative to an observer.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Doppler spectroscopy canonical | 2 |
| Doppler imaging | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1564879 — 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: Doppler spectroscopy Context triple: [Ives–Stilwell experiment, relatedTo, Doppler spectroscopy]
-
A.
HARPS spectrograph
The HARPS spectrograph is a high-precision, fiber-fed echelle spectrograph designed primarily for detecting exoplanets via radial velocity measurements.
-
B.
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.
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C.
Boller and Chivens spectrograph
The Boller and Chivens spectrograph is an astronomical instrument designed for dispersing and analyzing light from celestial objects to study their physical and chemical properties.
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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.
Goddard High Resolution Spectrograph
The Goddard High Resolution Spectrograph was a highly sensitive ultraviolet spectrograph aboard the Hubble Space Telescope used to study the composition, temperature, and motion 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: Doppler spectroscopy Target entity description: Doppler spectroscopy is a technique that measures frequency shifts in light or other waves to determine the velocity and motion of astronomical objects or particles relative to an observer.
-
A.
HARPS spectrograph
The HARPS spectrograph is a high-precision, fiber-fed echelle spectrograph designed primarily for detecting exoplanets via radial velocity measurements.
-
B.
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.
-
C.
Boller and Chivens spectrograph
The Boller and Chivens spectrograph is an astronomical instrument designed for dispersing and analyzing light from celestial objects to study their physical and chemical properties.
-
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.
Goddard High Resolution Spectrograph
The Goddard High Resolution Spectrograph was a highly sensitive ultraviolet spectrograph aboard the Hubble Space Telescope used to study the composition, temperature, and motion of astronomical objects.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observation technique
ⓘ
radial velocity measurement method ⓘ spectroscopic technique ⓘ |
| aimsTo | determine motion relative to observer ⓘ |
| appliesTo |
electromagnetic radiation
ⓘ
light waves ⓘ spectral lines ⓘ |
| assumes | non-relativistic velocities for simple linear relation ⓘ |
| basedOn | Doppler effect ⓘ |
| domain |
astronomy
ⓘ
astrophysics ⓘ atomic physics ⓘ plasma physics ⓘ |
| enables |
determination of stellar reflex motion
ⓘ
measurement of exoplanet minimum mass ⓘ measurement of orbital eccentricities ⓘ measurement of orbital periods of companions ⓘ |
| hasApplication | radial velocity method for exoplanet detection ⓘ |
| hasVariant |
infrared Doppler spectroscopy
ⓘ
optical Doppler spectroscopy ⓘ radio Doppler spectroscopy ⓘ |
| measures |
frequency shift
ⓘ
radial velocity ⓘ wavelength shift ⓘ |
| quantifies |
blueshift
ⓘ
redshift ⓘ |
| relatedTo |
Doppler imaging
ⓘ
linked to:
Doppler spectroscopy
radial velocity curve analysis ⓘ spectral line broadening analysis ⓘ |
| relates | observed wavelength shift to radial velocity ⓘ |
| requires |
high signal-to-noise ratio
ⓘ
precise wavelength calibration ⓘ stable spectrograph environment ⓘ |
| typicalPrecision | meters per second in high-precision exoplanet searches ⓘ |
| usedFor |
detecting exoplanets
ⓘ
measuring binary star orbits ⓘ measuring galaxy rotation ⓘ measuring motion of astronomical objects ⓘ measuring motion of gas in accretion disks ⓘ measuring motion of interstellar gas ⓘ measuring pulsating stars ⓘ measuring stellar radial velocities ⓘ measuring velocities of particles in plasmas ⓘ |
| uses |
calibration lamps
ⓘ
echelle spectrographs ⓘ high-resolution spectrographs ⓘ iodine absorption cells ⓘ laser frequency combs ⓘ stable reference spectra ⓘ |
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: Doppler spectroscopy Description of subject: Doppler spectroscopy is a technique that measures frequency shifts in light or other waves to determine the velocity and motion of astronomical objects or particles relative to an observer.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Doppler spectroscopy
subject linked to:
MAROON-X (precision radial-velocity spectrograph)