Spectrum (disambiguation)

A spectrum is a condition or value that is not limited to a specific set of values but can vary infinitely within a continuum.

Spectrum may also refer to:

Science and technology

Physics

Electromagnetic spectrum
- Visible spectrum or optical spectrum, a subset of the electromagnetic spectrum
- Emission spectrum, observed in light
- Absorption spectrum, observed in light
- Radio spectrum, radio frequency subset of the electromagnetic spectrum
- Stellar spectrum, the combination of continuum, absorption, and emission lines produced by a star
Energy spectrum, of a collection of particles (particle physics)
Frequency spectrum, of a signal
Power spectrum, of a signal

Medicine

Spectrum disorder, a group of mental disorders of similar appearance or thought to share an underlying mechanism
- Autism spectrum, encompassing autism, Asperger's, etc.
Antimicrobial spectrum, the range of microorganisms an antibiotic can kill or inhibit

Mathematics

In mathematics, spectrum frequently denotes a set of numbers associated to an object:

Spectrum of a matrix, its set of eigenvalues, in linear algebra
- Spectrum (functional analysis), a generalization of the concept of matrix eigenvalues to operators
- Spectrum of a graph, studied in spectral graph theory
- Pseudospectrum
Spectrum of a polygon, the set of numbers of possible equidissections
Spectrum of a sentence, in mathematical logic
Spectrum of a theory, in mathematical logic

There are also several other, unrelated meanings:

Spectrum (topology), the fundamental object of study in stable homotopy theory
Spectrum of a C*-algebra, a kind of dual object
Spectrum of a ring, the set of its prime ideals, in commutative algebra

Arts and entertainment

Spectrum (brand), a brand name used by Charter Communications for their telecommunication services, including:
- Spectrum News, a group of six cable news channels
- Spectrum Sports, a group of nine regional sports networks in the US
- Spectrum TV Stream, a streaming service

Publications

IEEE Spectrum, a magazine by the Institute of Electrical and Electronics Engineers
Spectrum (magazine), an independent Seventh-day Adventist magazine
Spectrum (newspaper), a defunct Toledo, Ohio weekly newspaper
Spectrum, a news website published by the Simons Foundation Autism Research Initiative
The Spectrum (Utah), also known as The Spectrum & Daily News, a Gannett newspaper in St. George, Utah
Spectrum (novel), a 2002 novel by Russian author Sergey Lukyanenko
Spectrum, a magazine published with Scotland on Sunday
Spectrum, a liftout in The Sydney Morning Herald

Student newspapers

The Spectrum (USLS), the student newspaper of the University of St. La Salle in the Philippines
The Spectrum (NDSU), the student newspaper of the North Dakota State University in the United States
The Spectrum (University at Buffalo), the student newspaper of the State University of New York at Buffalo

Television

Spectrum (TV channel), a defunct Chicago-area pay television broadcaster founded by United Cable
Spectrum (TV series), a 1958 Canadian television series
Spectrum (radio program), a daily broadcast series on CBS Radio, c. 1970–1992

Music

The Spectrum (Sirius XM), a music channel on Sirius Satellite Radio

Groups

Spectrum (band), an Australian group of the 1970s led by Mike Rudd
Spectrum (group), a South Korean boy group formed in 2018
Spectrum, a British band led by Peter Kember
Spectrum, a bluegrass band that included Béla Fleck and Jimmy Gaudreau
Spectrum (The Carpenters), 1960s jazz band led by Richard and Karen Carpenter
The Spectrum (1964–1970), a London-based pop group coincidentally providing the closing theme for the spectrum-themed TV show Captain Scarlet and the Mysterons

Albums

Spectrum (Billy Cobham album), debut album of fusion drummer Billy Cobham
Spectrum (Cedar Walton album), the second album by jazz pianist Cedar Walton
Spectrum (Heals album), debut album of Indonesian band Heals
Spectrum (Jega album), debut album of electronic musician Jega
Spectrum (Steve Howe album), 2005
Spectrum (Illinois Jacquet album), 1965
Spectrum (Westlife album), 2019
The Spectrum (album), of 2017 by Daley
Spectrum (Hiromi album), 2019
Spectrum, by iamjakehill, 2017

Songs

"Spectrum (Say My Name)", a 2012 song by British indie rock band Florence and the Machine
"Spectrum" (Zedd song), a 2012 song by German electronic dance music producer Zedd; also covered by SM The Performance
"Spectrum", a 2017 song by musical artist Muzz

Other arts and entertainment

Spectrum, a news website founded by the Simons Foundation Autism Research Initiative
Spectrum, an Irish radio program hosted by Melanie Verwoerd in 2005
Monica Rambeau, a Marvel Comics character who uses the name Spectrum
Spectrum, the worldwide security organisation in the 1960s TV series Captain Scarlet and the Mysterons
Gaylactic Spectrum Awards or Spectrums, a literary award
Spectrum Award, in fantasy, science fiction, and horror artwork

Buildings and structures

Spectrum (Montreal), a defunct concert venue in Canada
Spectrum London, an art gallery in England
Guildford Spectrum, a leisure complex in Guildford, England
Smith Spectrum, a sports arena in Logan, Utah, US
Spectrum (arena), a former arena in Philadelphia, Pennsylvania, US
Spectrum Stadium, near Orlando, Florida, US
Northlands Spectrum, later known as Northlands Park, a horse racing track in Edmonton, Alberta, Canada

Organizations

Spectrum Aircraft, a Canadian ultralight aircraft manufacturer
Spectrum Aeronautical, a US-based manufacturer of very light jets
Spectrum Animation, a defunct Japanese animation studio
Spectrum Brands, an American home-essentials company
Het Spectrum, a Dutch publishing company
Spectrum Pharmaceuticals, an American biopharmaceutical company
Spectrum (Amsterdam) (formerly Librije's Zusje), Michelin-starred restaurant in Amsterdam, the Netherlands

Products

Spectrum (racing car), a series of Australian open wheel racing cars manufactured by Borland Racing Developments
Geo Spectrum or Chevrolet Spectrum, a sedan and hatchback marketed in North America
ZX Spectrum, an early British home computer by Sinclair
Spectrum, a brand of printer paper owned by Georgia-Pacific

Other uses

Economic spectrum, disparities between social classes
Political spectrum, of opinion
Spectrum Range, a mountain range in British Columbia, Canada
Spectrum (horse), a thoroughbred racehorse
SPECTRUM Standard, a Museum Collections Management Standard developed by the Collections Trust